2003/11/12 City Council Resolution (2)A RESOLUTION OF THE COUNCIL OF THE CITY OF ROHNERT PARK
AUTHORIZING AND APPROVING THE 2003 SONOMA COUNTY COUNTYWIDE
INTEGRATED WASTE MANAGEMENT PLAN (2003 CoIWMP) IN ACCORDANCE WITH
THE CALIFORNIA INTEGRATED WASTE MANAGEMENT ACT OF 1989 (AB 939).
E IT RESOLVED by the City Council of the City of Rohnert Park that it does hereby
make the following findings and determinations in connection with the proposed 2003 CoIWMP.
WHEREAS, the adopted 1996 CoIWMP has been updated as the 2003 CoIWMP in
accordance with the AB 939. In addition to the programs identified in the 1996 CoIWMP, the
2003 CoIWMP proposes to provide: 1) a formal agreement among all cities and the County to
direct flow of refuse and green waste solid waste facilities in Sonoma County; 2) mandatory
access to recycling facilities for residential, commercial, industrial, and institutional waste
generators; 3) an expansion of the Central Landfill beyond its current permitted capacity (i.e.,
beyond the year 2015); and 4) the siting of an integrated Resource Management Facility (RMF) to
include organics processing (anaerobic digestion), green waste composting and land filling.
WHEREAS, the City of Rohnert Park recognizes the necessity for all jurisdictions within
the County of Sonoma to work together towards the goals and objectives of the CoIWMP; and
WHEREAS, the Sonoma County Waste Management Agency ( "SCWMA ") became a
Regional Agency on November 15, 1995, as defined under Section 40970 of the California Public
Resources Code, representing the Cities of Cotati, Cloverdale, Healdsburg, Petaluma, Rohnert
Park, Santa Rosa, Sebastopol, and Sonoma, the Town of Windsor, and the County of Sonoma;
and
WHEREAS, the CoIWMP was approved by the California Integrated Waste Management
Board ( "CIWMB ") on April, 1996, and revised at annual intervals with the submission of the
AB 939 Annual Report to the CIWMB; and
WHEREAS, the SCWMA adopted Resolution No. 2003 -022 certifying the Final
Supplemental Program Environmental Impact report and adopting the 2003 CoIWMP on October
15, 2003 during a duly noticed public hearing; and
WHEREAS, the Final 2003 CoIWMP was prepared in accordance with the California
Integrated Waste Management Act of 1989; and
WHEREAS, it is the requirement of each responsible agency to adopt findings pursuant
to CEQA; and
WHEREAS, the City of Rohnert Park does hereby acknowledge that in complying with
the state mandate known as AB 939 the potential exists for significant impacts; and
WHEREAS, the City of Rohnert Park finds the following environmental factors have
been identified as having the potential for significant social, health, and environmental impacts:
1. Land use
2. Soils and agricultural resources
3. Hydrology and water quality
4. Public safety, hazards and hazardous materials
5. Transportation
6. Air quality
7. Noise
8. Vegetation and wildlife
9. Visual resources
BE IT RESOLVED that the City of Rohnert Park finds, determines and orders as
follows:
1. The California Integrated Waste Management Act requires regional agencies,
cities and counties to prepare Integrated Waste Management Plans, which
reasonably respond to the needs and desires of these local agencies. The Sonoma
County Waste Management Agency, acting as the regional agency representing the
Cities of Cloverdale, Cotati, Healdsburg, Petaluma, Santa Rosa, Sebastopol, and
Sonoma, the Town of Windsor, and the County of Sonoma, adopted the 2003
CoIWMP on October 15, 2003.
2. The Final Supplemental Program Environmental Impact Report (FSPEIR)
disclosed certain significant or potentially significant environmental impacts,
which could be mitigated to less than significant levels. These effects and their
respective mitigation measures are set forth in Exhibit A to the Sonoma County
Waste Management Agency Resolution No. 2003 -022, which is incorporated
herein by reference. The impacts and their mitigation measures are more fully
described in the FSPEIR. The mitigation measures set forth in Exhibit A, in so far
as they are applicable to any activity that will be undertaken by the City of Rohnert
Park in furtherance of the 2003 CoIWMP, are approved as adopted as a part of any
such activity to which they are applicable.
The FSPEIR also disclosed certain significant or potentially significant
environmental impacts that may not or cannot be avoided if the 2003 CoIWMP is
implemented. These impacts, together with certain mitigation measures, which,
where feasible, will lessen such impacts, are set forth in Exhibit B to the Sonoma
County Waste Management Agency Resolution No. 2003 -022, which is
incorporated herein by reference. The mitigation measures set forth in Exhibit B
in so far as they are applicable to any activity that will be undertaken by the City
of Rohnert Park in furtherance of the 2003 CoIWMP, are approved and adopted,
should they be feasible under the circumstances then prevailing, as a part of any
such activity to which they are applicable.
4. The FSPEIR described a range of alternatives to the 2003 CoIWMP. These
alternatives and the reasons each is in conflict with one or more of the goals and
objectives of the 2003 CoIWMP and the requirements of state law are set forth in
Exhibit C to the Sonoma County Waste Management Agency Resolution No.
2003 -022, which is incorporated herein by reference and approved and adopted.
5. The City of Rohnert Park has considered the significant environmental effects of
the 2003 CoIWMP, as set forth in Exhibit B, which cannot feasibly be lessened to
a level of insignificance or avoided, and has considered the statement of overriding
considerations set forth in Exhibit E to the Sonoma County Waste Management
Agency Resolution No. 2003 -022, which is incorporated herein by reference. The
City of Rohnert Park further finds that the process of publicly addressing the
problems of solid waste disposal and preparing a response to those problems has
resulted, and will continue to result, in an increasing public and governmental
awareness of the problems of solid waste management, disposal, recycling and
composting, which awareness will return long -term benefits to the environment
and the conservation of natural resources.
BE IT FURTHER RESOLVED, that the City of Rohnert Park has considered the
Mitigation Monitoring Program and Reporting Plan (Exhibit D) prepared for the 2003 CoIWMP
and adopted by the Sonoma County Waste Management Agency. The subject Program and 2003
CoIWMP is hereby approved and adopted in so far as it is applicable to any activity which will be
undertaken by the City of Rohnert Park in furtherance of the 2003 CoIWMP.
BE IT FURTHER RESOLVED, that the City of Rohnert Park, based on the foregoing
findings, determinations, approvals and adoptions, and in response to the requirements of AB
939, approves the Sonoma County 2003 Countywide Integrated Waste Management Plan,
including the Source Reduction and Recycling Element, the Household Hazardous Waste
Element, the Non - Disposal Facility Element, and the Siting Element.
DULY AND REGULARLY ADOPTED this 12th day of November, 2003.
. .......... . ................. . . .
CITY Alayor
MACKENZIE: AYE NORDIN: AYE SPRADLIN: AYE VIDAK MARTINEZ: AYE F1.0RFS: AYE
AYES: (o') NOES: t(1) ABSENT: (0) ABSTAIN: f t
SUMMARY ENVIRONMENTAL IMPACTS (from SCWMA staff report)
Less - Than - Significant Impacts with Mitigation
Mitigable significant adverse environmental impacts and necessary mitigation measures that reduce potential
effects to less- than - significant levels are included in the FSPEIR and as Findings in the attached resolution
(Exhibit A).
Significant and Unavoidable Impacts with Mitigation
The DSPEIR identified potential significant impacts, and although the document proposes mitigation measures to
address those impacts (Exhibit B), there remain impacts that are considered significant and unavoidable,
including:
X Land Use: (Impact 4 -2) The construction of new and expanded solid waste disposal facilities could
conflict with surrounding land uses; (Impact 4 -3) The construction of new solid waste disposal facilities could
result in the loss of important open space or other resource lands.
X Soils and Agricultural Resources: (Impact 6 -2) Siting new and expanded non - disposal facilities on
agricultural land will impair agricultural production; (Impact 6 -3 [a]) Development of a new landfill and the
expansion of the Central Landfill could have potentially significant adverse soil related impacts; (Impact 6-
3 [b]) Development of a new landfill and the expansion of the Central Landfill could significantly impact
agricultural lands.
X Hydrology and Water Quality: (Impact 7 -9) Construction and operation of a new landfill, the RMF or
other proposed facilities such as composting operations could use significant amounts of groundwater.
X Public Safety: (Impact 8 -7) Development of a new and expanded non - disposal facilities and landfill or
expansion of the Central Landfill would likely have potentially adverse impacts on public safety.
X Transportation: (Impact 9 -2) The operation of new solid waste disposal facilities, including rock
extraction activities, could add to existing congestion on roads or intersections that currently operate at an
unacceptable level of service, or could cause those roads or intersections to operate at an unacceptable level
of service; (Impact 9 -3) Removal of rock at the Central Disposal Site for commercial purposes would
generate significant truck traffic trips hauling rock which would increase congestion at the Stony Point /Roblar
or Stony Point/West Railroad intersections.
X Air Quality: (Impact 10 -1) Construction and operation of the new and expanded non - disposal facilities
could result in significant emissions of carbon monoxide, NOX, and ROG. Also, diesel emissions from trucks
and equipment would include TACs which could be potentially hazardous if sensitive receptors (homes,
schools, hospitals) are located near a new non - disposal facility; (Impact 10 -3) Expanded composting
operations at the Central Landfill Organic Material Processing Facility could increase odorous gas emissions.
In addition, landfill operations including the active landfill face and leachate ponds, and composting facilities
at the Central Disposal Site, or elsewhere, could generate odors that could result in off -site complaints at the
Central Disposal Site or at a new landfill if located near homes or businesses; (Impact 10 -4 [a]) The
Agenda Item # 10.2
Public Hearing on the FSPEIR and 2003 CoIWMP
October 15, 2003
construction of a new landfill or expansion of the Central Landfill could cause significant emissions of
criteria pollutants. Also, diesel emissions from trucks and equipment would include TACs which could be
potentially hazardous if sensitive receptors (homes, schools, hospitals) are located nearby; (Impact 10 -4 [b])
The operation of a new landfill or expansion of the Central Landfill could cause significant emissions of
criteria pollutants. Also, diesel emissions from trucks and equipment would include TACs which could be
potentially hazardous if sensitive receptors (homes, schools, hospitals) are located nearby; (Impact 10 -5)
Blasting and rock crushing for the construction of a new landfill, or expansion of the Central Landfill, may
result in PMIO emissions that exceed the BAAQMD's or the NSCAPCD's significance thresholds of 15
tons /year; (Impact 10 -6) Rock extraction for the construction of a new landfill, or expansion of the Central
Landfill could result in NOX emissions from blasting. Operation of excavating equipment, rock crushers, and
haul trucks could cause significant emissions of criteria pollutants (e.g., carbon monoxide, NO,, and ROG)
and TACs.
X Noise: (Impact 11 -2) Implementation of proposed 2003 CoIWMP non - disposal programs could produce
increased noise levels. New and expanded non - disposal facilities could cause traffic increases resulting in
noise level increases along roadways, which would generate impacts on nearby land uses; (Impact 11 -3) New
and expanded non - disposal facilities could produce operational noise; (Impact 11- 5)Operation of new and
expanded solid waste disposal facilities could cause traffic increases resulting in noise level increases along
roadways, which would generate impacts on nearby land uses; (Impact 11 -6) Landfill expansion in the west
portion of the Central Disposal Site, including rock extraction activities and development of any new landfill,
could produce noise levels that exceed the Sonoma County General Plan noise criteria or cause a substantial,
permanent increase in ambient noise levels.
X Vegetation and Wildlife: (Impact 12 -2) The development of a new landfill or the expansion of the
Central Landfill could potentially affect listed and sensitive species and sensitive natural communities.
X Visual Resources: (Impact 14 -1) New and expanded non - disposal facilities could be visible from
surrounding areas, which could impact scenic vistas, waterways, routes, ridges, and degrade the existing
character or quality of the site and its surroundings, that may result in significant aesthetic impacts; (Impact
14 -2) New and expanded non - disposal facilities could potentially impact visual resources through the
generation of litter in site areas and along transportation routes; (Impact 14 -3) New and expanded solid waste
disposal facilities (including lighting plans) could be visible from surrounding areas, which could impact
scenic vistas, waterways, routes, trees, rock outcroppings, ridges, including historic buildings within a state
scenic highway, and could result in significant aesthetic impacts; (Impact 14 -4) New and expanded solid waste
disposal facilities could potentially impact visual resources through the generation of litter at the site and along
transportation routes to the site.
ALTERNATIVES
The DSPEIR evaluated alternatives to the project (Exhibit C), concluding that the proposed project (e.g., the draft
2003 CoIWMP) would be the environmentally superior project if all of the proposed mitigation measures are
included in the project.
MITIGATION MONITORING PROGRAM
Agenda Item # 10.2
Public Hearing on the FSPEIR and 2003 CoIWMP
October 15, 2003
It is expected that most of the projects that will implement the CoIWMP will be carried out by Sonoma County or
by one of the cities. The mitigation measure identified in the FSPEIR will be the responsibility of the agency that
carries out the project. The Mitigation Monitoring Program (Exhibit D) summarizes the role of the SCWMA and
its member jurisdictions as individual lead agencies on future projects regarding their timing for verification of
mitigation measure implementation, specification of the party/parties responsible for implementation of the
measure(s), and the assignment of mitigation monitoring responsibility.
FINAL SUPPLEMENTAL PROGRAM ENVIRONMENTAL IMPACT REPORT (FSPEIR)
The FSPEIR (Exhibit F) is a compilation of the DSPEIR, and Responses to Comments received during the public
review period. The State Clearinghouse has indicated that one comment has been received during the public
review period on the part of the California Department of Transportation (CalTrans). The response to this
commenting agency is included in Exhibit F.
STATEMENT OF OVERRIDING CONSIDERATIONS
CEQA requires that the SCWMA adopt a Statement of Overriding Considerations for all significant unavoidable
impacts that will result from the proposed project. The proposed Statement of Overriding Considerations (Exhibit
E) summarizes the specific overriding environmental, economic, legal, social, technological, or other benefits of
the proposed 2003 CoIWMP compared to the project's significant unavoidable impacts on the environment.
NOTICE OF DETERMINATION
A Notice of Determination (Exhibit G) has been prepared for filing with the County Clerk and Office Planning and
Research (OPR) after the FSPEIR has been certified and the 2003 CoIWMP has been adopted by the SCWMA.
DEADLINE(S) FOR ACTION
The SCWMA will consider the adequacy and certification of the FSPEIR at its regularly scheduled meeting on
October 15, 2003. As Lead Agency, the SCWMA must certify the adequacy of the FSPEIR in accordance with the
State CEQA Guidelines and certify as the decision - making body that it reviewed and considered the document
prior to reaching its decision on the proposed 2003 CoIWMP.
As required by the AB 939 regulations, the public hearing on the Final 2003 CoIWMP was noticed in the Press
Democrat, a newspaper publication of general circulation. The FSPEIR and the draft 2003 CoIWMP are available
at all Sonoma County libraries and at the SCWMA's main office.
FUNDING IMPACT
There is no funding impact to the SCWMA, or its member jurisdictions, for responding to comments received on
the 2003 CoIWMP DSPEIR and considering certification of the FSPEIR or for adoption of the 2003 CoIWMP.
RECOMMENDED ACTION
Staff recommends that the SCWMA:
Agenda Item # 10.2
Public Hearing on the FSPEIR and 2003 CoIWMP
October 15, 2003
X Consider the FSPEIR and certify that it has been completed in accordance with
CEQA.
X Open the public hearing to adopt the Final 2003 CoIWMP.
X Close the public hearing.
X Consider all public testimony and any written comments on the 2003 CoIWMP,
X Adopt the attached resolution and its findings that certifies the adequacy of the
FSPEIR and adopts the 2003 CoIWMP, Mitigation Monitoring Program, Statement of Overriding
Considerations, and designates the SCWMA and the County of Sonoma as the custodians of the
documents.
X Direct staff to forward the 2003 CoIWMP to the California Integrated Waste
Management Board for consideration and adoption.
X Direct staff to file a Notice of Determination,
ATTACHMENTS
Resolution
Exhibit A — Impacts That Can Be Reduced To Less Than Significant
Exhibit B — Impacts That Cannot Be Reduced To Less Than Significant
Exhibit C — Alternatives
Exhibit D — Mitigation Monitoring Program
Exhibit E — Statement of Overriding Considerations
Exhibit F — Final Supplemental Program EIR
Exhibit G — Executive Summary 2003 CoIWMP
Exhibit H — Notice of Determination
EXHIBIT A
IMPACTS THAT CAN BE REDUCED TO LESS THAN SIGNIFICANT
The Final SPEIR disclosed significant or potentially significant environmental impacts that, with the
implementation of mitigation measures, can be reduced to less than significant if the proposed 2003
CoIWMP is approved.
Findings
Changes or alterations will be required in, or incorporated into, the project to avoid or substantially lessen
the significant environmental effects as identified in the Final SPEIR. Based on the analysis in the
FSPEIR, the significant effects listed below have been found to be reduced to a less - than - significant
level by incorporating into the project the following mitigation measures:
LAND USE
Significant Effects
Land 1Js U L-1 ulrisn"ICI ig Lap(l tJse Coii n -Di faosal Facilities),.- The construction of
new solid waste non - disposal facilities could conflict with surrounding land uses.
Land Use Impact 4 -4 Mineral Resources (Landfill)- Location of a new landfill may affect availability of
mineral resources.
Mitigation Measures
Land Use Mitigation Measure 4 -1 - In siting new or expanded solid waste non - disposal facilities, examine
land uses surrounding potential sites and take possible land use conflicts into account in making siting
determinations. In addition, require each new or expanded facility to incorporate design and operational
measures to minimize land use conflicts.
Land Use Mitigation Measure 4 -4 - Geologic studies of future landfill expansion and new landfill sites
will address the possibility that mineral resources could be located under sites of new facilities. To the
extent practical, mineral recovery efforts will be incorporated into the construction of the Central Landfill
expansion or new landfills.
GEOLOGY
Significant Effects
(rcololar lr:�l eta tm w 1_" �t c J a �lf:iw� a�Ll ;t ar a , a tlti�� , T a aI C „��,10sal racil tics] - New and expanded
non - disposal facilities could be subject to potentially damaging seismically- induced surface faulting and
ground shaking.
Geology pact 5 -2 Liquefaction (Non- Disposal Facilities) - New and expanded non - disposal facilities
could be subject to potentially damaging seismically induced liquefaction.
Geology Impact 5 -3 Surface Faulting and Ground Shaking (Landfill) - New and expanded solid waste
disposal facilities could be subject to potentially damaging seismically induced surface faulting and
ground shaking.
Geology Impact 5 -4 Liquefaction (Landfill)-New solid waste disposal facilities could be subject to
potentially damaging seismically induced liquefaction.
Geology Impact 5 -5 Slope Failures (Landfill) - The West Expansion area at the Central Disposal Site
and the future landfill could cause significant damage on- and off -site as a result of slope failures, and
landsliding could potentially bring refuse to the surface, creating health hazards.
Geology Impact 5 -6 Subsidence and Settlement (Landfill) - Settlement of the landfill material at the
Central Disposal Site and the future landfill is expected to occur during decomposition of the refuse
material. Settlement of refuse has the potential for disrupting the surface drainage pattern and causing
ponding on the landfill, and it could also potentially disrupt the gas collection system.
Miti -atinn Measures
G'eolo f Mitigation Measure 5 -1
(a) Non - disposal facilities shall be built a sufficient distance from earthquake fault zones as restricted by
state and federal regulatory requirements.
(b) Where proposed development may be exposed to significant risks of damage from geologic hazards,
a geologic report (prepared by a California Registered Geologist) shall be prepared which evaluates the
hazards and shall identify measures which can be implemented to reduce the risks to acceptable levels.
Such measures will be implemented.
(c) All grading and building construction for new or expanded non - disposal facilities shall conform with
geologic and seismic standards contained in the latest edition of the Uniform Building Code (UBC). Prior
to construction activities, the applicant shall submit building plans to the local jurisdiction's building
department indicating compliance with the UBC.
(d) All new or expanded disposal facilities shall meet the requirements of the County or Cities' general
site design standards. The proposed new non - disposal facilities shall comply with the County or cities'
policies and standards pertaining to geologic hazards.
Geology Mitigation Measure 5 -2 -
(a) Same as Mitigation Measures 5 -1 (b) and 5 -1 (d).
(b) All new or expanded non - disposal facilities that are susceptible to seismic ground failure shall include
project designs for building and road foundations to withstand potential liquefaction impacts.
Geology Mitigation Measure 5 -3 -
(a) New or expanded disposal facilities shall be built a sufficient distance from earthquake fault zones or
as restricted by state and federal regulatory requirements.
(b) Where proposed development may be exposed to significant risks of damage from geologic hazards,
a geologic report (prepared by a California Registered Geologist) shall be prepared which evaluates the
hazards and shall identify measures which can be implemented to reduce the risks to acceptable levels.
Such measures will be implemented.
(c) All grading and building construction for new or expanded disposal facilities shall conform with
geologic and seismic standards contained in the latest edition of the Uniform Building Code (UBC). Prior
to construction activities, the applicant shall submit building plans to the local jurisdictions' building
department indicating compliance with the UBC.
(d) All new or expanded disposal facilities shall meet the requirements of the County or cities' general
site design standards. The proposed new and expanded disposal facilities shall comply with the County
or cities policies and standards pertaining to geologic hazards.
(e) In accordance with state and federal regulations, restrict the development of landfills in geologically
unstable areas.
(f) In accordance with state and federal regulations, restrict the development of landfills in seismic
impact zones unless containment structures are engineered and constructed to preclude failure during
rapid geologic change.
Geology Mitigation Measure 5- 4 —
(a) Same as Mitigation Measures 5 -3 (a through f).
(b) All new or expanded disposal facilities that are susceptible to seismic ground failure shall include
project designs for building and road foundations to withstand potential liquefaction impacts.
Geology Mitigation Measure 5 -5 -
The grading plan for the West Expansion area at the Central Disposal Site and the future landfill will
incorporate grading procedures to prevent slope failures. These include maximum fill slopes as
determined suitable by a registered engineering geologist. The embankments of new sedimentation
basins and landfill slopes will be constructed so that the factor of safety is greater than 1.5.
Geology Mitigation Measure 5 -6 -
Final landfill grades will be constructed in accordance with Section 20650 of Title 27 of the CCR which
requires that "Covered surfaces of the disposal area shall be graded to promote lateral runoff of
precipitation and to prevent ponding. Grades shall be established of sufficient slopes to account for future
settlement of the fill surface." Grades will be of sufficient slopes to allow for future settlement of the final
cover and to avoid ponding and infiltration of stormwater. The landfill gas collection system will use
flexible pipe and be designed to accommodate settlement of the refuse.
SOILS AND AGRICULTURAL RESOURCES
Significant Effects
SSoiIs and Age icq_ tqmll resources 1pnp u� (� ml l rosioti and Silt �lCmrc�I . i_()¢I-Dis )gmsgl t, "aci�,liti s) - Siting and
construction of new or expanded non - disposal facilities on sites with unstable slope conditions or high
erosion potential could result in erosion and siltation.
Mitigation Measures
Soils and Agricultural Resources Mitigation Measures 6 -1 —
(a) All new facilities shall be designed and constructed to conform with the site development standards
contained in the latest edition of the Uniform Building Code (UBC) . Prior to construction activities, the
applicant shall submit building plans to the local jurisdiction's building department indicating compliance
with the UBC.
(b) All new facilities shall meet the requirements of the County or cities' standards pertaining to site
design, grading, and erosion control.
(c) Vegetation on soils exposed during construction shall be reestablished as soon as practical. Mulch or
other temporary cover shall be used in the interim where erosion potential exists.
(d) Employ Best Management Practices as required under the NPDES Permit for Construction grading.
(e) To the extent feasible, confine grading, excavation, and other earthwork to the dry seasons. When this
is not feasible, erosion and sediment transport control facilities should be in place prior to the onset of the
first major winter storms. If wind erosion has the potential to occur during summer months, erosion
control methods, such as watering graded areas, shall be implemented.
(f) Prepare and implement detailed erosion and sedimentation control plan(s), which should be submitted
for review and approval by the RWQCB. The specific language of such plans varies, but the concepts to
be adhered to include the following:
1. To avoid discharge to natural waterways, sediment should be trapped before leaving the
construction site through the use of rip -rap, hay bales, fencing, or sediment ponds.
2. Areas of surface disturbance should be minimized.
3. Disturbed areas should be stabilized through vegetative or mechanical methods. When construction
is complete, all disturbed areas should be regraded and revegetated. Topsoil should be stockpiled and
used for the revegetation of disturbed areas.
HYDROLOGY AND WATER QUALITY
Significant Effects
] ly lr °o1i g r u and Water Qualit y Impact 7 -1 Pollutants in Stc rinwatcr 1 .utiofl 4 +��:1 17is cap, l Facilitres __ —
Construction and operation of new and expanded non - disposal facilities could adversely affect the quality
of stormwater runoff.
11_clrqlPgy s!ttdl,.. "� q 'hq!_ ,y l;nll�K,!ct ' �. t" onl). ;iiy In reared Ronofl" (Non- Disp(:Lg( -
Construction and operation of new and expanded non - disposal facilities could increase runoff volumes
and could be subject to flooding.
Hy if °gio _ g J LCI —[1�1 o�� o r� ties — Grading activities ) gl i
associated with the new and expanded non - disposal facilities could adversely affect water quality.
Hydrology and Water Quality Impact 7 -4 Household Hazardous Waste (Non- Disposal Facilities) — On-
site handling and temporary storage of household hazardous waste at non - disposal facilities could
adversely affect water quality.
Hydrology and Water Quality Impact 7 -5 Leachate (Landfill) — The operation of new and expanded solid
waste disposal facilities could result in an increase in leachate production, which could lead to
degradation of County water quality.
Hvdroloav and Water Oualitv Impact 7 -6 Quality of Stormwater Runoff (Landfill) — The construction and
operation of new and expanded solid waste disposal facilities could adversely affect the quality of
stormwater runoff.
Hydrology and Water Quality Impact 7 -7 Water Qualt (Landfill) — Grading activities associated with
the new and expanded solid waste disposal facilities could adversely affect water quality.
p d Flow of Surface Waters Landfill — The operation
Hydrology an Water Qua rtv Impact 7 -8 Volume an
of new and expanded solid waste disposal facilities could significantly alter the volume and flow of
surface waters.
Hydrology and Water Quality Impact 7 -10 Blasting Spills Landfill) — Blasting for excavation of landfill
cells could involve spills of blasting materials, resulting in surface water contamination.
Hydrology and Water Quality Impact 7 -1 l Ground � V ibratiors 1r opLi
13 °�stir� ym,Lttm7clsill ..
Blasting near an existing landfill could cause fractures to open in bedrock or damage or displace the
landfill liner as a result of ground vibrations. This would create the potential for leachate intrusion into
groundwater.
HYSIf c►l agv r tlm wf l q ; taa ity tpi pa�l,7 12 rotui water Tea: ha gp.(. Loij- f Is o al 8 scilitiesl — Loss of
groundwater recharge from large non - disposal facilities (i.e., composting facilities) could occur from
impermeable surfaces.
Mitigation Measures
Hvdroloav and Water Oualitv Mitigation Measure 7 -1
(a) Stormwater runoff from waste handling areas shall be treated on site or routed to the sanitary sewer
for treatment prior to discharge.
(b) To the extent feasible, materials handling and storage areas shall be covered to prevent contact with
stormwaters.
(c) All exterior drainage from each site shall be managed in accordance with the requirements of federal
NPDES, state, and local regulations.
Hydrology and Water Quali . Mitigation Measure 7 -2 —
(a) To the extent feasible, new facilities shall be located outside of areas at high risk for flooding.
(b) The design of new facilities shall, to the extent feasible, minimize the amount of impermeable surface
and incorporate methods to lessen surface runoff from the site.
Hydrology and Water Quali . Mitigation Measure 7 -3 —
(a) Employ Best Management Practices as required under the NPDES Permit for Construction grading.
(b) To the extent feasible, confine grading, excavation, and other earthwork to the dry seasons. When
this is not feasible, erosion and sediment transport control facilities should be in place prior to the onset of
the first major winter storms. If wind erosion has the potential to occur during summer months, erosion
control methods, such as watering graded areas, shall be implemented.
(c) Prepare and implement detailed erosion and sedimentation control plan(s), which should be
submitted for review and approval by the RWQCB. The specific language of such plans varies, but the
concepts to be adhered to include the following:
1. To avoid discharge to natural waterways, sediment should be trapped before leaving the construction
site through the use of rip -rap, hay bales, fencing, or sediment ponds.
2. Areas of surface disturbance should be minimized.
3. Disturbed areas should be stabilized through vegetative or mechanical methods. When construction
is complete, all disturbed areas should be regraded and revegetated. Topsoil should be stockpiled and
used for the revegetation of disturbed areas.
(d) All new facilities shall be designed and constructed to conform with the site development standards
contained in the latest edition of the Uniform Building Code (UBC). Prior to construction activities, the
applicant shall submit building plans to the local jurisdiction's building department indicating compliance
with the UBC.
(e) All new facilities shall meet the requirements of the County or cities' standards pertaining to site
design, grading, and erosion control.
(f) Vegetation on soils exposed during construction shall be reestablished as soon as practical. Mulch or
other temporary cover shall be used in the interim where erosion potential exists.
(g) Treat wastewater generated during construction prior to discharge. At a minimum, the wastewater
should be treated by sedimentation to remove suspended particles from the water. Sedimentation ponds
would need to be maintained regularly. Precipitation agents, such as alum, may be introduced to speed
the action of settling suspended particles. Alternatively, either gravity or pressure filtration could be used
if sufficient space for sedimentation facilities is unavailable.
(h) Prepare and implement a Spill Prevention Control /Countermeasure (SPCC) Plan prior to the start of
construction. The SPCC Plan should cover actions needed to minimize the potential for accidental
spillage of construction - related contaminants such as fuel, oil, or other chemicals. Such contaminants
should not be drained onto the soil; rather, they should be confined to sealed containers and removed to
proper disposal sites. Refueling should be conducted in a location where spills could be contained.
Hydrology and Water Quality Mitigation Measure 7 -4 —
(a) Same as Mitigation Measures 7 -1(a), 7 -1(b) and 7 -1(c).
(b) Construct a separate spill control facility around and under the waste intake, storage, and loading
areas to provide for containment of any hazardous spills that might occur in the vicinity.
Hvdrologv and Water 1 q;Itky Mitigation Measure 7 -5 —
(a) Cover materials (soil) shall be placed over waste materials at the end of each day to prevent water
from ponding on the landfill.
(b) A low - permeability final landfill cover, as required by CCR, Title 23, Chapter 15, shall be placed
over the landfill during closure.
(c) The volume of fluid that enters the landfill shall be minimized by prohibiting the disposal of liquid
waste.
(d) The landfill shall be designed with an adequate drainage and collection system to prevent to the
extent possible the migration of leachate off -site.
(e) Landfills shall be located where site characteristics provide adequate separation between solid waste
and ground and surface waters and where soil characteristics, distance from waste to groundwater, and
other factors will ensure no impairment of beneficial uses of surface or ground water beneath or adjacent
to a landfill (California Water Regulations, Chapter 15, Article 3, Section 2533).
(f) Current industry standards for leachate management shall be implemented (e.g., storing leachate in
lined on -site ponds where it can evaporate naturally) or, if storage is impossible, transporting leachate to
the nearest wastewater treatment plant capable of treating the leachate and not exceeding effluent
discharge limits.
(g) Leachate and wastewater collection and disposal systems shall be designed with enough capacity to
accommodate the amount of leachate predicted to be generated during the wettest year of record.
(h) Construction of all new landfill cells will comply with the requirements of Title 27 for liner
impermeability.
(I) A landfill leachate and wastewater management program will be implemented which will include
monitoring leachate levels and wastewater and emptying ponds as necessary to ensure adequate storage
capacity.
0) Investigate and consider methods for treatment of leachate and wastewater on -site and disposal by
irrigation at any expanded or new landfill site.
(k) All exterior drainage from each landfill site shall be managed in accordance with the requirements of
federal NPDES, state, and local regulations.
jjydroloZy and Water _C li. Mitigation Measure 7-6 —
—
(a) To the extent feasible, the working face of the landfill shall be covered with soil or other approved
alternate cover material to prevent contact with stormwaters.
(b) All exterior drainage from each site shall be managed in accordance with the requirements of federal
NPDES, state, and local regulations.
II droiggy end Water Quali Miti anon Measure 7 -% --
ty ___. g
Same as Mitigation Measures 7 -3 (a) through (f) and (h). In addition the following Mitigation Measure is
added:
Treat wastewater generated during construction prior to discharge. At a minimum, the wastewater should
be treated by sedimentation to remove suspended particles from the water. Sedimentation ponds would
need to be maintained regularly.
1[!ll!]�t"II ►L��1 YAA.li71 ►Yi ►1 ►I►� ► /�JAl- #"'All N71 � ►J[ 15A:f111+1�i1
(a) Mitigation implemented to control erosion during operation of the landfill shall be similar to that
implemented during construction (see Mitigation Measure 7 -7 above).
(b) Permanent drainage ditches shall be constructed around the landfill perimeter to convey runoff water
from the project site. These permanent drainage ditches shall be lined with native grass, concrete,
corrugated metal, or other material that will limit water infiltration and soil erosion. Temporary and
permanent berms, collection ditches, benches, and stormwater downdrains shall be constructed to convey
water runoff from the landfill surface and downslopes.
(c) On -or off -site detention ponds shall be constructed and maintained and site runoff shall be collected
and sedimentation completed in the ponds prior to discharge to surface waters. The ponds shall be
adequately designed so that no net increase over existing conditions in stormwater flows from the project
site are expected to result from a 100 -year flood event.
(d) Prior to the rainy season, drainage facilities shall be inspected and, if necessary, cleared of debris.
(e) Drainage facilities shall be inspected after the first significant rain of the season to ensure that the
system is functioning.
(f) Runoff from areas up gradient of the landfill shall be routed around the landfill,
(g) Landfills shall not be developed within a 100 -year floodplain (40 CFR 258).
Hydrology and Water Quality Mitigation Measure 7 -10 — Spill prevention and cleanup plans will be
required in all construction contracts. Any contracts which involve blasting will require that explosives
spilled during the loading of the blasting holes be cleaned up prior to detonating the explosives.
Hydrology and Water Quality Mitigation Measure 711— If blasting will be done near an existing landfill,
a qualified blasting specialist will design the blasting program to ensure that peak particle velocities
resulting from blasts will be lower than the amount that could damage the landfill liner or leachate
collection system.
Hydrology and Water Quality Mitigation Measure 7 -12 — When feasible, large non - disposal facilities
(i.e., composting facilities) shall provide permeable surfaces and retention basins to aid in the recharge of
groundwater in accordance with the water quality standards of the Regional Water Quality Control Board.
PUBLIC SAFETY
Sinnificant Effects
PLIbltc Sal ty 1111l,)act 8 -1 111jurIllness i�J;c�q ���spa .... � +�rll.�t�� �t1�cl 1 aiid(i11) —New and expanded
non - disposal facilities and landfill may give rise to the potential for injury and illness among collection
program and facility employees.
1 t:iblic Sk&Q 1Ntapact 8 1 _q rjgrk _ 1�1on 1 rspKSS d a it lic : — Workers in new and expanded
ut� ��t �tnc L�����
non - disposal facilities and participation by the general public in backyard composting programs identified
in the 2003 CoIWMP could result in health problems for susceptible persons exposed to allergenic fungi
and infectious bacteria (e.g. aspergillous).
programs identified in the 2003 CoIWMP may increase the potential for public health impacts in
surrounding areas.
Public Saf'e,�y linpact 8-4 Exposure of Ernployees aud the General Public to Accidental Irtiury (Non-
Disposal Facilities) — Construction and operation of new and expanded non-disposal facilities and
landfills could expose employees and the general public to accidental injury.
Public Safety 1pip",-,
Facilities and Landfill) —Proccmxeuinberent in the operation of new and expanded non-disposal facilities
and landfill could result io accidental combustion nf materials accumulated for transfer and storage and
expose area residents tutoxic substances and/or increased fire or explosion potential.
—Operation of new and
expanded non-disposal facilities and landfill may lead to habitation of vectors in and around the facilities.
One type nforganics
processing being considered for the RMF known uo chemical or biological digestion, could involve the
transportation, use and disposal of hazardous material to facilitate the digestion process. Improper
handling could result in spills, which could expose people to these materials.
Public Safe1y Impact 8-9 Blasting for Landfill Excavation )— Significant vibration impacts could
result from blasting for the excavation for landfill construction.
Public Safely linpact 8-10 State-D iated Contaminated Sites ) osal Facilities aud Laudft
_
New facilities could be sited on lands designated by the state as containing hazardous materials
New
facilities nr expansion of existing non-disposal facilities m landfill may not be covered byexisting
emergency response and evacuation plans of the county or incorporated cities.
Public Sa 1� It Vact 8-12 Hazardous Materi Is A aceia to Schools (Nou-Disposal Facilities and
— Hazardous materials could bo handled within u quarter mile nfaschool.
— WDdband fires could
occur adjacent to new or al facilities and landfills.
Mitigation Measures
Public Safety Mitigation Measure 8-1 _
(a) Curbside shall bc established un that uodirect worker contact with the materials
occurs. Automated can picJ+nn' commingled collection, and/or separate materials bins could meet this
(b) Workers shall hc supplied with appropriate safety gear which provide the maximum protection
available while still affording sufficient manual for accomplishing their sorting tasks.
(c) All workers shall have current vaccinations against diseases such uo tetanus, polio, no other diseases
which could hcspread through direct contact with solid waste.
(d) Workers shall be trained to spot hypodermic needles during sorting, extract them from the sorting
line, and deposit them in a plastic sharps disposal container kept at each sorting station.
(e) Sharps containers filled at the non - disposal facility and landfill, as well as containers encountered in
curbside materials during sorting operations, shall be properly disposed of with a licensed medical waste
hauler.
(f) New and expanded non - disposal facilities and solid waste disposal facilities shall develop and
implement an Illness and Injury Prevention Plan to address the potential for injury and illness among
facility employees.
(g) A map showing the locations of local emergency services and appropriate telephone numbers shall be
posted at all non - disposal facilities and landfills in a conspicuous place (e.g., near the telephone) by either
the program operations manager or the safety inspector.
.Public-Safeiy-MLti&4ttqn-Measure-8-2 --
(a) Backyard composting training for the general shall address the potential health effects associated with
composting. Training will describe how proper moisture content will reduce dust generation and
maximize microbial action and how sufficient oxygen content is critical to maintaining microbial action,
regulating temperature, and reducing odors and pathogens. Persons with weakened immune systems or
persons with allergies, asthma or other respiratory problems shall be discouraged from participating in
backyard composting. Backyard composters shall also be encouraged to thoroughly wash their hands
with soap and water after each contact with backyard compost piles.
(b) Composting operations at new or expanded composting facility(ies) shall include the following
procedures:
1. Proper moisture content shall be maintained in compost piles or windrows.
2. Proper temperatures and oxygen content shall be maintained in compost piles /windrows through
aeration and compost turning or agitation. Operating procedures shall require that the compost pile be
heated to approximately 132 -140E to ensure that all pathogens have been eliminated.
3. Loading and compost turning equipment shall have enclosed, ventilated cabs and the ventilation
systems shall be maintained regularly, or individual respiratory protection (dust masks) will be utilized.
4. Employees shall be encouraged to wash their hands frequently with soap and water, particularly prior
to lunch and other breaks, and at the end of the work day.
5. Composting facility operators shall inform compost workers about the possibility for development of
pulmonary hypersensitivity. Workers shall be encouraged to report unusual health problems to their
supervisors and physicians.
6. New and expanded non - disposal facilities shall develop and implement an Illness and Injury
Prevention Plan to address the potential for injury and illness among facility employees.
Public Safe . Mitigation Measure 8 -3 —
(a) A HHW Facility Operations Plan shall be developed for each permanent HHW facility. This plan
shall include procedures for waste acceptance and screening, waste management practices, stormwater
management, worker health and safety, and emergency prevention, precaution and response.
(b) An emergency response plan shall be developed for each collection site in order to plan actions to be
taken in the event of a spill incident. The emergency response and evacuation plan shall be developed by
the collection site operator in coordination with the appropriate local agencies prior to the operation of the
collection site.
(c) A safety inspector shall be assigned by the HHW program operations manager to oversee field
activities, spot potential risks, and ensure conformance with regulations.
(d) Employee safety meetings shall be conducted, as necessary, by the program safety inspector.
(e) All vehicles shall be inspected, as necessary, for safety violations by the program safety inspector and
facility employees.
(f) An on -site eye wash and shower station shall be provided at all mobile and stationary HHW collection
sites.
(g) A map showing the locations of local emergency services and appropriate telephone numbers shall be
posted at all mobile and stationary HHW collection sites in a conspicuous place (e.g., near the telephone)
by either the program operations manager or the safety inspector.
(h) A training program for facility personnel in CPR and first aid shall be provided by the program safety
inspector. In addition, first aid materials shall be maintained in good condition.
(i) A drainage containment and collection system shall be set up around the HHW collection and storage
facilities to prevent discharge of spilled materials to soil or groundwater. All spilled material shall be
collected and treated separately to prevent the spread of any hazardous constituents.
0) Any risk posed by unauthorized access to any non - disposal site shall be mitigated by posting warning
signs, fencing, patrol personnel, or the disabling of equipment when not in use. Daily inspections would
be the responsibility of the facility operations manager.
(k) A Load Checking Program shall be updated and implemented to ensure the proper disposal of
hazardous wastes illegally disposed with solid waste accepted at non - disposal facilities and the landfill,
Any hazardous wastes found while conducting the Load Checking Program shall be disposed of
according to applicable state and federal regulations.
Public Safety Mitigation Measures 8 -4
(a) Prior to permitting, develop and implement (in consultation with the Fire Marshal) a Fire Prevention
Program for each facility, as necessary. This program shall entail both structural fire suppression
mechanisms, such as an automatic sprinkler system and fire retardant building materials in the design of
the structure, as well as procedural programs for minimizing/extinguishing fire hazards.
(b) Develop an Emergency Response and Evacuation Plan for each new or expanded facility in
accordance with relevant county or city emergency response and evacuation plans, and follow it in the
event of a fire, earthquake, hazardous materials spill or other emergency. Each emergency response and
evacuation plan shall be developed by the facility operator in coordination with the County Office of
Emergency Services, the Hazardous Materials Division of the County Environmental Health Department,
and the appropriate Fire Protection District.
(c) All potentially disastrous events shall be reported by the project sponsor to the County Office of
Emergency Services so that County emergency services such as traffic control, fire and medical
equipment, and evacuation notification can be available as needed.
(d) Facility workers shall be provided and required to use safety glasses, safety shoes, coveralls, gloves,
noise reducers for ears, or other safety equipment appropriate to the hazard of the job. An emergency eye
bath and emergency showers shall be installed in the facility by the project sponsor.
(e) A map showing the locations of local emergency services and appropriate telephone numbers shall be
posted at all non - disposal facilities and landfills in a conspicuous place by either the program operations
manager or the safety inspector.
(f) New and expanded non - disposal facilities and solid waste disposal facilities shall develop and
implement an Illness and Injury Prevention Plan to address the potential for injury and illness among
facility employees.
Public Safetv Miti ation Measure 8 -5
Same as Mitigation Measure 8 -4 (a) through (e). In addition, the following Mitigation Measures have
been added:
(a) Consider reducing operating hours at new or expanded non - disposal facilities in order to reduce the
accumulation of combustible solid waste for transfer and storage.
(b) A map showing the locations of local emergency services and appropriate telephone numbers shall be
posted at all non - disposal facilities and landfills in a conspicuous place (e.g., near the telephone) by either
the program operations manager or the safety inspector.
(c) Develop an Emergency Response and Evacuation Plan for each new or expanded facility in
accordance with relevant county or city emergency response and evacuation plans, and follow it in the
event of a fire, earthquake, hazardous materials spill or other emergency. Each emergency response and
evacuation plan shall be developed by the facility operator in coordination with the County Office of
Emergency Services, the Hazardous Materials Division of the County Environmental Health Department,
and the appropriate Fire Protection District.
Public Safe.. Iy Mitigation Measures 8.... —
(a) Rodent traps shall be placed strategically around the public drop -off areas and recycling areas, as
required. This measure shall be monitored by the facility operations manager.
(b) Landscape materials shall exclude plants, such as ivy, which may provide hidden nesting areas for
rodents.
(c) Standing water and moist areas shall be controlled to prevent mosquito breeding. This shall be
monitored by the facility operations manager.
Public Safe1y Mitigation Measure 8 „ -8 — If hazardous materials are used at the RMF, the following
mitigations will be implemented:
(a) Same as Mitigation Measures 8 -3 (b) through (d) and (f) through 0).
(b) New and expanded non - disposal facilities and solid waste disposal facilities shall develop and
implement an Illness and Injury Prevention Plan to address the potential for injury and illness among
facility employees.
Public Safety Mitigation Measure 8 -9 —
(a) Blasting at the Central Disposal Site shall be conducted in accordance with the recommendations of
the study conducted by Geotek in 1998, and any further site specific blasting study conducted by a
licensed blasting engineer. At a minimum, mitigation shall include:
1. All blasts will be designed to minimize peak particle velocity at the nearest off -site structures.
2. Measures will be taken to control air blast (over pressure), including stemming explosive charges
with clean crushed stone, ensuring the minimum distance between bore holes and the rock face, keeping
drilling logs to describe ground conditions, adjusting blast design to isolate explosive charges from weak
areas, avoiding blasting during heavy cloud cover or windy conditions and monitoring over pressure at or
near nearby residences.
(b) If blasting is necessary at a new solid waste disposal site, a site - specific blasting study to establish
procedures to minimize peak particle velocities and over pressure will be conducted.
Public Safety Mitigation Measure 8 -10 — In the event that a facility is located on a designated
contaminated site, a study will be done to ensure that proper handling and disposal methods will be used
to minimize environmental impacts. The study will include a search of records of hazardous materials
presence, a field assessment of conditions on the site to determine whether visual evidence of hazardous
materials is present, and a plan to treat and /or clean up the site in accordance with regulations of the
Regional Water Quality Control Board and Sonoma County Environmental Health if hazardous materials
are present. Site specific analysis would be done at the time facility locations are proposed.
Public Safety Mitigation Measure 8 -11 — Develop an Emergency Response and Evacuation Plan for each
new or expanded facility in accordance with relevant county or city emergency response plans, and follow
it in the event of a fire, earthquake, hazardous materials spill or other emergency. Each emergency
response plan shall be developed by the facility operator in coordination with the County Office of
Emergency Services, the Hazardous Materials Division of the County Environmental Health Department,
and the appropriate Fire Protection District.
Public Safe iti ation assure 8 -12 —
(a) Safety measures shall be implemented, including, at a minimum, emergency response procedures,
safety inspections, safety training, restriction of unauthorized access to areas where hazardous materials
are stored, and timely containment and cleanup of spills.
(b) All potentially disastrous events shall be reported by the project sponsor to the County Office of
Emergency Services so that County emergency services such as traffic control, fire and medical
equipment, and evacuation notification can be available as needed.
Public Safety Mitigation Measure 8 -13 —
(a) Future non - disposal and disposal facilities located in Sonoma County shall be designed, constructed,
and maintained in conformance with the requirements of the Fire Marshall's Vegetation Management
Plan and Fire Safe Standards.
(b) Develop an Emergency Response and Evacuation Plan for each new or expanded facility in
accordance with relevant county or city emergency response and evacuation plans, and follow it in the
event of a fire, earthquake, hazardous materials spill or other emergency. Each emergency response and
evacuation plan shall be developed by the facility operator in coordination with the County Office of
Emergency Services, the Hazardous Materials Division of the County Environmental Health Department,
and the appropriate Fire Protection District.
(c) All potentially disastrous events shall be reported by the project sponsor to the County Office of
Emergency Services so that County emergency services such as traffic control, fire and medical
equipment, and evacuation notification can be available as needed.
TRANSPORTATION
Significant Effects
Transportation Impact 9 -1 Operations (Non - Disposal Facilities) – The operation of new and expanded
non - disposal facilities could result in significant impacts to transportation in Sonoma County.
— lr— aiis - o_ rUitioq lq _q Centrm al .l ...)is � aL�rtt ,raffle L �rtclm111l , – Expansion of the landfill
p
at the Central Disposal Site and permanent operation of the site as a landfill and transfer station would
extend existing traffic further into the future (past 2015).
Transportation Impact 9-5 Rock Extraction Traffic Safety (Landfill) – Rock extraction at the Central
Disposal Site could create transportation safety hazards related to sight distance on Mecham Road and at
the site.
p
orlatioil 1Gnp � - New w acilltius l f lrc (1 oti- 1)isp± al,.Facilities Hasid 1,��zdl "illl – Construction
and operation of a new landfill and non - disposal facilities could cause safety problems at its driveway
entrance or its access road, or on minor streets that serve the new facility.
Mitigation Measures
Tra sportation Mid ation Measure 9 -1 --
(a) To the extent feasible, new non - disposal facilities shall not be located in areas with significant road
congestion, as designated in the cities' and County General Plans;
(b) To the extent feasible, new non - disposal facilities shall be located near other commercial facilities to
allow for the combination of activities in one trip and reduce overall trip generation.
(c) Traffic Management Plans (TMP) shall be developed for each of the new and expanded non - disposal
facilities, as required. These plans shall schedule truck trips so that roadway segments with the potential
to be significantly impacted are avoided during peak hours. In addition, these plans shall detail the hours
of operation and other restrictions on truck trips for each of the facilities and shall include plans for
employee car pooling and bus transportation, where appropriate and feasible. The plans shall be updated
periodically in response to changing traffic conditions and improvements to the highway system. The
TMP shall include a site - specific traffic evaluation conducted as part of the siting study for a new non -
disposal facility to identify potential traffic problem areas prior to site selection. The traffic evaluation
shall consider limiting non - disposal facility operations to either commercial or private (general public)
haulers, as well as co- locating of disposal and non - disposal facilities to reduce haul trips.
(d) Countywide Traffic Mitigation fees shall be paid for new facilities implemented in accordance with
the 2003 CoIWMP to help mitigate off -site cumulative traffic impacts.
Transportation Mitigation Measure 9 -4 —
If significant traffic impacts to the Stony Point/Roblar Roads and Stony Point Road /West Railroad
Avenue intersections continue beyond 2015, mitigation measures such as the following shall be
implemented:
(a) The Integrated Waste Division will restrict truck traffic that is subject to County control so that trucks
do not travel through the Stony Point/Roblar intersection during peak hour. This shall apply only to new
truck trips associated with projects pursuant to the 2003 CoIWMP and not existing traffic using the
Central Disposal Site. The restriction shall apply to trucks subject to County control, such as those
making deliveries of cover soil and liner materials, and trucks associated with construction at the site.
This measure shall remain in effect until a traffic signal has been installed at this intersection.
(b) Prior to construction of projects at the Central Disposal Site pursuant to the 2003 CoIWMP, the
Integrated Waste Division shall pay a traffic mitigation fee that includes a fair share contribution toward
the installation of signals at the Stony Point/Roblar and Stony Point/West Railroad intersections.
(c) Consider restricting hours of operation so that traffic is not added to the congested intersections
during peak traffic hours. This restriction would remain in effect until these intersections are signalized.
(d) Consider restricting traffic the use of the site to commercial operators only, thereby reducing the
number of vehicles using the Stony Point/Roblar and Stony Point/West Railroad intersections.
Transportation Mitigation Measure 9 -5 — Prior to the commencement of hauling, the quarry operator and
the Integrated Waste Division shall implement a truck driver education program which familiarizes rock
and commercial refuse haulers with speed limit zones, school bus stops, areas of low sight distance on the
haul route, permit limits on trucking, weight and load height limits, circulation routes through the landfill
to minimize interference, and other measures which will reduce public conflicts. The Integrated Waste
Division shall maintain a record of the drivers receiving the orientation.
Transportation Mitigation Measure 9 -6 —
(a) Driveways and access roads for the new landfill and non - disposal facilities shall be designed to the
AASHTO standards to ensure safety hazards are minimized. These standards include driveway width,
acceleration - deceleration lanes and turning radius requirements.
(b) Prior to operation, minor roads that would be used as haul routes shall be examined for existing safety
problems and if feasible corrections will be made if traffic from new facilities exacerbates those
problems.
(c) Design access roads for new facilities to accommodate emergency vehicles in accordance with County
Fire Safe Standards.
AIR QUALITY
Significant Effects
Air Quality Impact 10 -2 Construction PM (Non- Disposal Facilities)— Construction of new and
expanded non - disposal facilities could create significant emissions of PM1o.
Mitigation Measures
Air Qualily Mitigation Measure 10 -2 —
(a) The contractor shall reduce particulate emissions by complying with the dust control strategies
developed by the NSCAPCD and the BAAQMD. The project sponsor shall include in construction
contracts the following requirements:
1. The contractor shall water in late morning and at the end of the day all earth surfaces during
clearing, grading, earthmoving, and other site preparation activities.
2. The contractor shall use tarpaulins or other effective covers for haul trucks that travel on public
streets and roads.
3. The contractor shall increase the watering frequency for exposed and erodible soil surfaces
whenever winds exceed 15 mph.
4. The contractor shall water exposed soil surfaces, including cover stockpiles, roadways, and parking
and staging areas, to minimize dust and soil erosion.
5. The contractor shall sweep streets adjacent to the new and expanded non - disposal facilities at the
end of each day.
6. The contractor shall control construction, operation, and site maintenance vehicle speed to 15 mph
on unpaved roads.
NOISE
Significant Effects
Noise Impact 11 -1 Construction Noise (Non - Disposal Facilities) — Construction of new and expanded
non - disposal facilities could cause temporary increases in noise levels on, and around, the proposed
facilities over the entire period of construction.
Noise Impact 11 -4 Construction Noise (Landfill) — Construction of new or expanded solid waste disposal
facilities, including any potential rock extraction, could cause temporary increases in noise levels on, and
around, the proposed facilities over the entire period of construction.
Mitigation Measures
Noise Mitigation Measure 11 -1 —
(a) Construction activities shall be limited to the hours between 7AM and 7PM to the extent practical.
(b) Construction equipment shall be properly outfitted and maintained with noise reduction devices to
minimize construction- generated noise. Wherever possible, noise - generating construction equipment
shall be shielded from nearby residences by noise - attenuating walls, berms, or enclosures.
(c) The contractor shall attempt to locate stationary noise sources as far away as possible from noise -
sensitive land uses.
Noise Mitigation Measure 11 -4 — Same as Mitigation Measure 11 -1,
VEGETATION AND WILDLIFE
Significant Effects
tl;ierrar�l 'rldlrl1a� act M 1ilarsr_sri a iN+llil "clr r,. -rfiv „Calrial
t.r tis significantly Wildlife
and expanded on - disposal facilities imp Nurs
act wetlands, listed or sensitive species
s
or their habitat, and /or sensitive /natural communities.
Iiti ation Measures
/ .�n�.�f�ffc ���i�rr Measure 1x-1
.. ...." : .... a:... ......
(a) When new non - disposal facilities are proposed, site specific biotic studies shall be performed to
identify biotic resources on the sites. To the extent practical the new facilities shall be constructed to
avoid these resources. Where avoidance is not practical the project sponsor shall consult with the
appropriate State or Federal resource agencies to determine appropriate mitigation for any loss of or
change to the biotic resources. The project sponsor shall acquire all necessary permits from these
agencies. Compliance with permit conditions shall be a condition of approval of the project.
(b) Riparian areas shall be avoided where possible in siting new facilities. If avoidance is not possible,
compensation for loss of riparian vegetation shall be made by planting and otherwise enhancing a
comparable area of streambank in the general vicinity where habitat quality can be improved. Planting
plans shall be reviewed by a qualified biologist and submitted to the California Department of Fish and
Game and other agencies, if needed, for review and comment prior to implementation. Revegetation
areas shall be managed to permanently protect the riparian vegetation.
(c) Before construction during the active nesting period between March 1 and September 1, a qualified
biologist shall determine the locations of any active raptor nests that could be affected. If any active nests
are found, removal of the trees containing the nests shall be delayed until a qualified wildlife biologist has
determined that the young birds are able to leave the nest and forage on their own. A qualified wildlife
biologist shall be consulted to determine what activities must be avoided in the vicinity of the nests while
the nests are active, and those recommendations shall be followed during construction.
CULTURAL RESOURCES AND PALEONTOLOGY
Significant Effects
Itr— �e�,otar`ccor expanded non - disposal facilities could result�i�or�tolo yrlI�csc�ur�,e�, 1'��%ri
Facilities — News�cl lit orttolo l�„ t1 13 i:mm _ _
n impacts to cultural and
paleontological resources.
Develop l . soar arua� ['�m1 °► t_,gy ld p met l p k8ttrr xC. ru .1 rri ro r, c 1 1 pt tra s I rr;r Cl it l} —
ment of a new or expanded solid waste disposal facility could result in impacts to cultural and
paleontological resources.
Cultural Resources and Paleontology Impact 13 -3 Architectural Historical Resources (Non - Disposal
Facilities and Landfill) — New non - disposal facilities or a new landfill could result in impacts to historical
resources.
Mitigation Measures
Cidwra.l Resources aaicl Paleontology l! npg!!! Mati gatiori c��sua� 13-:1
(a ) Intensive on -site cultural and paleontological resources surveys shall be conducted by a qualified
archeologist and paleontologist prior to construction in any areas of a site to be used for solid waste non -
disposal facilities that are designated as sensitive in a city or County planning document. In addition, the
NWIC will be consulted to determine if previously recorded archeological sites exist on or in the vicinity
of the project site. The purpose of this survey will be to precisely locate and map significant cultural and
paleontological resources. The services of the archaeologist and paleontologist shall be retained by the
project sponsor.
(b) If, in the process of the cultural resource surveys, significant archaeological resources are found to
exist on the site, the project sponsor shall consider changing the facility lay -out to avoid such resources.
If it is not possible to make this change, however, formal archaeological data collection work on the
significant resources will be completed. This shall include a complete surface collection of cultural
material and, at a minimum, excavation of a sample subsurface cultural material sufficient to evaluate the
extent, depth, and make -up of site components (i.e., archaeological testing). The overall objectives of
such data collection work shall be to explicitly identify those research questions for which the site
contains relevant information, with the research questions representing those presently expressed by the
body of professional archaeologists in the region. If the results of the archaeological testing indicate that
additional mitigative data recovery work is justified or warranted, it will be completed prior to the
construction of the facility.
(c) If paleontological resources can not be avoided by changing the site lay -out, a program of data
collection and recovery shall be implemented.
(d) Archaeological and paleontological monitors shall be present during studies, site construction and
development activities in areas of high cultural and paleontological resource sensitivity when
recommended by a site - specific study for a project under the 2003 CoIWMP, or when a designated Native
American Tribal representative requests to monitor projects. These monitors shall be retained by,the
project sponsor. In the event that human remains are unearthed during construction, state law requires
that the County Coroner be notified to investigate the nature and circumstances of the discovery. At the
time of discovery, work in the immediate vicinity would cease until the Coroner permits work to proceed.
If the remains were determined to be prehistoric, the find would be treated as an archaeological site and
the mitigation measure described above would apply.
(e) In the event that unanticipated cultural or paleontological resources are encountered during project
construction, all earthmoving activity shall cease until the project sponsor retains the services of a
qualified archaeologist or paleontologist. The archaeologist or paleontologist shall examine the finding,
assess their significance, and offer recommendations for procedures deemed appropriate to either further
investigate or mitigate adverse impacts to those cultural or paleontological archaeological resources that
have been encountered. These additional measures shall be implemented.
Cultural Resources and Paleontology Impact Mitigation Measure 13 -2 — Same as Mitigation Measure 13-
1 (a) through (e)
Cultural Resources and Paleontologv Impact Mitigation Measure 13 -3
(a) Intensive on -site historical resources surveys shall be conducted by a qualified architectural historian
prior to construction where structures over 45 years old or sites known to have historical significance
could be affected by proposed facilities. The purpose of the survey shall be to determine the historical
significance of the resources and whether the proposed project would affect those structures that are
found to have historical significance. The services of the architectural historian shall be retained by the
project sponsor.
(b) If, in the process of the historical resource surveys, significant resources are found to exist on the site,
the project sponsor shall consider changing the facility layout to avoid such resources. If it is not possible
to make this change, however, mitigation work in accordance with the Secretary of the Interior's
Standards for the Treatment of Historic Properties which address preservation, rehabilitation, restoration
and reconstruction of historic resources shall be completed for the historical resource.
VISUAL RESOURCES
Shmificant Effects
None identified.
SOCIOECONOMICS, PUBLIC SERVICES AND UTILITIES
Sienificant Effects
oc�ic�ccolionlimes Ptibli e vices ixt C(Jt�le 1rrtp�,��;t �S -N. Fire ��1�1 crCl�c a rv�e�p �l l�r� l�� g��w��aC
Facilities — Non - disposal facilities and programs may impact existing fire and police services.
Socioeconomics, Public Services and Utilities Impact 15- 2, Fire „and Police Services (Landfill) — New and
expanded solid waste disposal facilities may impact existing fire and police services.
Socioecoiwinics,_i'ublic Services and Wilities I1111)4!ct 15-4 , Exceed v'± astewater Treatineiat l ec uirellICI t,
(Non - Disposal Facilities and Landfill) — Future landfill expansion, a new landfill or other facilities could
involve activities that produce discharge to waterways and, therefore, would be required to comply with
wastewater treatment requirements of the Regional Water Quality Control Board.
Mitigation Measures
Sociotwcoli nlies. I'lliblic Services and 1Jtil.ides Miti �ticati...Mcrasur „1.'
(a) For each facility and for the applicable CoIWMP programs, a Fire Prevention Program shall be
developed and implemented (in consultation with the Fire Marshal). This program shall entail both
structural fire suppression mechanisms in the design of the facilities, such as fire sprinkler systems in
facility buildings, as well as procedural programs for minimizing fire hazards.
(b) For each facility that handles hazardous materials and for the applicable CoIWMP programs, a
Hazardous Materials Inventory and Emergency Response Plan shall be prepared and implemented (in
consultation with the appropriate local agency).
(c) Private project sponsors shall pay development impact fees to cover the cost of additional fire
protection services, if necessary.
Sociocconotnics Ptiblic Services and Utilities MAig"Itipp M,eas,gre]"5-2 — Same as Mitigation Measure
15-1 (a) and (c).
Socioecojignics, Pulflic Services and,Ufilifles Mitin, tiop Measure 15,-4 — Any projects which involve
discharge to waterways or stormwater runoff shall comply with the permitting provisions of the
applicable Regional Water Quality Control Board.
IMINNI
Significant E'ffects
Notre ideiiti,fied,
EXHIBIT B
IMPACTS THAT CANNOT BE REDUCED TO LESS THAN SIGNIFICANT
The Final SPEIR disclosed significant or potentially significant environmental impacts that, even with the
implementation of mitigation measures, may not or cannot be avoided if the proposed 2003 CoIWMP is
approved.
FindinEs
The 2003 CoIWMP will cause impacts that cannot be reduced to less than significant even with the
implementation of the mitigation measures identified in the FSPEIR. Based on the analysis in the
FSPEIR, it has been found that the significant effects listed below may not be reduced to a less than
significant level by incorporating into specific projects the following mitigation measures:
LAND USE
Significant Effects
Land Use Impact 4 -2 — The construction of new and expanded solid waste disposal facilities could
conflict with surrounding land uses.
Land Use Impact 4 -3 — The construction of new solid waste disposal facilities could result in the loss of
important open space or other resource lands.
Mitigation Measures
Land Use Mitigation Measure 4 -2 — In siting new or expanded solid waste non - disposal facilities,
examine land uses surrounding potential sites and take possible land use conflicts into account in making
siting determinations. In addition, require each new or expanded facility to incorporate design and
operational measures to minimize land use conflicts.
Land Use Mitigation Measure 4 -3 — There are no mitigation measures for the loss of important resource
lands or for the change in character of the lands.
SOILS & AGRICULTURAL RESOURCES
Significant Effects
Soils & Agricultural Resources Impact 6 -2 — Siting new or expanded non - disposal facilities on
agricultural land will impair agricultural production.
Soils & Agricultural Resources Impact 6 -3 (a) — Development of a new landfill and the expansion of the
Central Landfill could have potentially significant adverse soil related impacts. These potential impacts
include substantial erosion and siltation.
Soils & Agricultural Resources Impact 6 -3 (b) — Development of a new landfill and the expansion of the
Central Landfill could significantly impact agricultural lands. These potential impacts could include the
conversion of prime farmland, unique farmland, farmland of statewide importance; conflicts with existing
zoning for agricultural use, or a Williamson Act contract; or involve other changes to the environment
that could result in the conversion of farmland to non - agricultural use.
Mitigation Measures
Soils & Agricultural Resources Mitigation Measures 6 -2 — To the extent feasible, all new facilities and
expansion of existing facilities shall comply with the General Plan objectives and avoid siting on
agricultural lands as defined in the General Plan.
Soils & Agricultural Resources Mitigation Measure 6 -3 (a) — Storm Water Pollution Prevention Plans
shall be prepared and revised as needed for all facilities at the Central Disposal Site or other new landfills.
Plans shall be submitted to the Regional Water Quality Control Board and at a minimum shall include:
(a) A description of the critical features of the erosion control system, including sediment ponds
and drainage ways, along with a description and schedule for routine maintenance of these
features.
(b) A construction schedule for components of the erosion control system.
(c) A requirement to vegetate side slopes and waste -fill slopes. Temporary and permanent
vegetative cover shall be established as soon as possible on side slopes and waste -fill slopes. To
protect the slopes prior to vegetation establishment, a mulch, consisting of straw or wood fiber
shall be applied at the time of seeding. A tackifier shall be applied with the mulch as needed to
prevent loss of the mulch due to wind or water movement. Sample specifications for
revegetating disturbed areas shall be included, with a description of the types of areas to be
revegetated, the equipment and procedures to be used, and the dates for the seeding. For areas
where an erosion potential exists, but it is not practical to establish vegetation, specifications for
placing mulch or temporary covers shall be included.
(d) Specifications for construction features to reduce erosion. These shall include benches on
slopes to intercept sheet flow and shorten drainage paths, protective linings (e.g., riprap, concrete,
grass, erosion control mats) on interim and final drainage ways, and energy dissipators at inlets
and outlets of sediment ponds and at outlets of culverts.
(e) Best Management Practices for construction and operation of the landfill and other facilities.
This includes miscellaneous grading and removal of cover soil from all facilities.
(f) Specifications for watering roads, borrow areas, and construction areas to control wind
erosion.
(g) An inspection and /or maintenance schedule for critical parts of the sediment control system,
including sediment ponds and drainage ways.
(h) A schedule for winterizing that will ensure that critical work is done prior to October 15th
each year.
Soils & Agricultural Resources Mitigation Measure 6 -3(b) — Although solid waste facilities would be
subject to the Exclusionary and Comparative Criteria in the 2003 CoIWMP Siting Element, there are no
mitigation measures for the loss of important agricultural lands or for the change in character of the lands.
HYDROLOGY AND WATER QUALITY
SiEnificant Effects
Hydrology and Water Quality Impact 7 -9 — Construction and operation of a new landfill, the RMF or
other proposed facilities such as composting operations could use significant amounts of groundwater,
Mitigation Measures
Hydrology and Water Qualily Mitigation Measure 7 -9 —
(a) New waste management facilities will use water conservation techniques such as reclaimed
water use and water recycling where feasible.
(b) If anaerobic digestion is used to process organics, a complete site specific groundwater study
or groundwater availability determination to demonstrate that water use levels will not deplete
groundwater supplies for surrounding properties.
PUBLIC SAFETY, HAZARDS AND HAZARDOUS MATERIALS
Significant Effects
Public Safety, Hazards and Haza rr d ous Materials Im act t 8 -7 — Development of a new and expanded non -
,
disposal facilities and landfill or expansion of the Central Landfill would likely have potentially
significant adverse impacts on public safety.
Mitigation Measures
Ilublic. Sal'et jjgZgjjs and l lazardot s ,Mater all Mi g�Ilic:��M�asw.�r� _7 — Mitigation measures will
result from the site specific CEQA review process, and will include the general following mitigation
measures:
(a) (1) An emergency response and evacuation plan shall be developed for each collection
site in order to plan actions to be taken in the event of a spill incident. The emergency
response and evacuation plan shall be developed by the collection site operator in
coordination with the appropriate local agencies prior to the operation of the collection
site.
(2) Employee safety meetings shall be conducted, as necessary, by the program safety
inspector.
(3) All vehicles shall be inspected, as necessary, for safety violations by the program
safety inspector and facility employees.
(4) A map showing the locations of local emergency services and appropriate telephone
numbers shall be posted at all mobile and stationary HHW collection sites in a
conspicuous place (e.g., near the telephone) by either the program operations manager or
the safety inspector.
(5) A training program (including periodic retraining) for facility personnel in CPR and
first aid shall be provided by the program safety inspector. In addition, first aid materials
shall be maintained in good condition.
(6) Any risk posed by unauthorized access to any non - disposal site shall be mitigated by
posting warning signs, fencing, patrol personnel, or the disabling of equipment when not
in use. Daily inspections would be the responsibility of the facility operations manager.
(7) All potentially disastrous events shall be reported by the project sponsor to the
County Office of Emergency Services so that County emergency services such as traffic
control, fire and medical equipment, and evacuation notification can be available as
needed.
(8) Facility workers shall be provided and required to use safety glasses, safety shoes,
coveralls, gloves, noise reducers for ears, or other safety equipment appropriate to the
hazard of the job. An emergency eye bath and emergency showers shall be installed in
the facility by the project sponsor.
(b) Employees shall be encouraged to wash their hands frequently with soap and water,
particularly prior to lunch and other breaks, and at the end of the work day.
(c) Standing water and moist areas shall be controlled to prevent mosquito breeding. This
shall be monitored by the facility operations manager.
(d) New and expanded non - disposal facilities and solid waste disposal facilities shall develop
and implement an Illness and Injury Prevention Plan to address the potential for injury
and illness among facility employees.
TRANSPORTATION
Significant Effects
Transportation Impact 9 -2 — The operation of new solid waste disposal facilities, including rock
extraction activities, could add to existing congestion on roads or intersections that currently operate at an
unacceptable level of service, or could cause those roads or intersections to operate at an unacceptable
level of service.
Transportation Impact 9 -3 — Removal of rock at the Central Disposal Site for commercial purposes
would generate significant truck traffic trips hauling rock which would increase congestion at the Stony
Point/Roblar or Stony Point/West Railroad intersections.
Mitigation Measures
TL gggjQn Mitigation Measure 9 -2 —
(a) The siting study for a new landfill shall consider the adequacy and operation of the local
roads and intersections as part of the comparative criteria.
(b) A site - specific traffic evaluation shall be conducted as part of the siting study to identify
potential traffic problem areas prior to site selection and to identify road or intersection
improvements and /or changes needed to accommodate landfill traffic.
(c) Countywide traffic mitigation fees shall be paid for new facilities implemented in accordance
with the 2003 CoIWMP to help mitigate off -site cumulative traffic impacts.
Transportation Mitigation Measure 9 -3 — Traffic analysis shall be conducted at the time a site - specific
environmental analysis of a quarry project is undertaken. If rock extraction traffic would cause
significant congestion at the Stony Point/Roblar or Stony Point/West Railroad intersections, the following
mitigation measures shall be considered:
(a) Trucks hauling rock from the landfill quarry shall be restricted so that they do not add traffic
to the congested intersections during peak traffic hours. Restrictions could include alternative
hours of operation or alternative haul routes. This restriction shall remain in effect until these
intersections are signalized.
(b) The quarry operator shall pay a traffic mitigation fee to provide a fair -share contribution
toward the cost of signalizing the intersections.
AIR QUALITY
Significant Effects
Air Quality Impact 10 -1 — Construction and operation of the new and expanded non - disposal facilities
could result in significant emissions of carbon monoxide, NOX, and ROG. Also, diesel emissions from
trucks and equipment would include TACs which could be potentially hazardous if sensitive receptors
(homes, schools, hospitals) are located near a new non - disposal facility.
Air Oualityl,111��pact;10 -3 Odors — Expanded composting operations at the Central Landfill Organic
Material Processing Facility could increase odorous gas emissions. In addition, landfill operations
including the active landfill face and leachate ponds, and composting facilities at the Central Disposal
Site, or elsewhere, could generate odors that could result in off -site complaints at the Central Disposal
Site or at a new landfill in a location where people live or work nearby.
Air Quality Impact 10 -4 (a) — The construction of a new landfill or expansion of the Central Landfill
could cause significant emissions of criteria pollutants. Also, diesel emissions from trucks and equipment
would include toxic air contaminants (TACs) which could be potentially hazardous if sensitive receptors
(homes, schools, hospitals) are located nearby.
Air Quality Impact 10 -4 (b) — The operation of a new landfill or expansion of the Central Landfill could
cause significant emissions of criteria pollutants. Also, diesel emissions from trucks and equipment would
include TACs which could be potentially hazardous if sensitive receptors (homes, schools, hospitals) are
located nearby.
Air Quality Impact 10 -5 — Blasting and rock crushing for the construction of a new landfill , or expansion
of the Central Landfill, may result in PMIO emissions that exceed the BAAQMD's or the NSCAPCD's
significance thresholds of 15 tons /year.
Air Quality Impact 10 -6 — Rock extraction for the construction of a new landfill, or expansion of the
Central Landfill could result in NO, emissions from blasting. Operation of excavating equipment, rock
crushers, and haul trucks could cause significant emissions of criteria pollutants (e.g., carbon monoxide,
NOX, and ROG) and TACs.
Mitigation Measures
Air Qualfty Mitigation Measure 10 -1 (a) — The County and cities shall consider air emissions when
purchasing new equipment and when entering into agreements with solid waste operators. Cleaner
vehicles shall be weighted more favorably than less clean vehicles.
Air Ouality, M it i >a�, on Measure 10-1(b)—
1. New facilities shall be sited to maximize separation between haul routes /facilities and
sensitive receptors to the extent practical.
2. New facilities shall encourage the use of low emissions vehicles that control diesel particulates
with engine filters or by using low emissions fuels such as compressed natural gas.
3. The contractor shall reduce No, ROG, and CO emissions by complying with the construction
vehicle air pollutant control strategies developed by the BAAQMD and the NSCAPCD. The
project sponsor shall include in construction contracts the following requirements:
(a) Construction equipment operators shall shut off equipment when not in used to
avoid unnecessary idling. As a general rule, vehicle idling should be kept below 10
minutes.
(a) The contractors's construction equipment shall be properly maintained and in
good operating condition.
(b) The contractor shall utilize new technologies to control ozone precursor
emissions as they become available and feasible.
(c) The contractor shall substitute gasoline - powered for diesel - powered equipment
where feasible. The contractor shall electrify equipment where practical.
4. Asphalt paving materials shall conform to the most recent guidelines by the air district having
jurisdiction.
Air Quality Mitigation Measure 10 -1(c) —
1. Contracts for operation of facilities described in the 2003 CoIWMP shall require contractors to
limit idling time of diesel equipment to 10 minutes when practical. Contracts shall also require
that equipment be serviced at regular intervals to keep engines operating within parameters that
will prevent excessive emissions.
2. Contracts for operation of facilities described in the 2003 CoIWMP shall include incentives
for using electric motors instead of internal combustion engines in stationary equipment.
3. Alternate technology, such as fuel cell or cleaner burning engines, shall be considered for any
electricity generation plant implemented by programs in the 2003 CoIWMP.
Air Quality Mitigation Measure 10 -1 (d) — If emissions of criteria pollutants are produced by selected
technology for processing of organic waste at the RMF, the facility will be equipped with a means to
collect or trat emissions which may include air control and emission filters to comply with air quality
standards.
fir 11 li iti��ation.:C�easures _1_ - -3 —
(a) Control of odors shall be implemented through the use of Best Management Practices utilized
with Sonoma County such as the avoidance of compost disturbance in afternoon hours, regulating
moisture content, and turning compost windrows.
(b) If odor persists as a problem, compost piles or windrows shall be covered with soil or
finished compost to reduce emissions of odors.
(c) The landfill will be covered at the end of every day with plastic, soil or other appropriate
material.
(d) Any cracks in the landfill surface will be repaired as soon as practical.
(e) Acidity levels in leachate ponds will be monitored and pH adjusted as necessary to reduce
odor problems.
Air Qualfty Mitigation measure 104(a) — Same as Mitigation Measures 10 -1 (a), (b), and (c) and 10 -2 (a).
Air Quality Mitigation Measure 104( b) — Same as Mitigation Measure 10 -1 (a), (b), and (c). In addition,
the following mitigation measure is added:
To prevent excessive emissions of ROG, future landfill gas collection systems shall be designed
to minimize the amount of uncontrolled gas emissions. To ensure that the latest information and
technology is considered in the design, the project sponsor will have a qualified consultant
prepare recommendations that would include the appropriate collection technology. These
recommendations shall be submitted to the Bay Area Air Quality Management District for
approval prior to the issuance of an Authority To Construct.
Air Quality Mitigation Measure 10-5 — Same as Mitigation Measure 10 -2 (a). In addition, the following
mitigation measures are added:
(a) Blasting operations for landfill construction shall be restricted as follows to control dust
emissions:
p , To the extent possible, remove all loose dirt and overburden material from
blasting areas prior to drilling blast holes.
2. Spray water over blast areas prior to blasting.
3. No loading of explosives in blast holes or blasts will be conducted when wind
speed on site exceeds 15 mph.
(b) Any rock crusher used for landfill construction shall be equipped with a spray mister, or
incorporate some other equally effective measure to control dust.
Air Quality Mitigation Measure 10 -6 — Same as Mitigation Measures 10 -1 (a), (b), and (c). In addition,
the following mitigation measure is added:
(a) To prevent excessive NOX emissions:
(1) Blasting for landfill construction shall be done with water resistant explosives in the wet
areas of bore holes. Non -water resistant explosives may be used above the wet areas of
bore holes, provided the bore hole is sealed above the wet area so that the non -water
resistant explosive remains above the wet area.
(2) Blended ammonium nitrate /fuel oil blasting agents shall contain at least 5.7%
fuel oil by weight.
NOISE
Sienificant Effects
Noise Impact 11 -2 — Implementation of proposed 2003 CoIWMP non - disposal programs could produce
increased noise levels. New and expanded non - disposal facilities could cause traffic increases resulting in
noise level increases along roadways, which would general impacts on nearby land uses.
Noise Impact 11 -3 —New and expanded non - disposal facilities could produce operational noise,
Noise Impact 11 -5 — Operation of new and expanded solid waste disposal facilities could cause traffic
increases resulting in noise level increases along roadways, which would generate impacts on nearby land
uses.
Noise Impact 11 -6 — Landfill expansion in the west portion of the Central Disposal Site, including rock
extraction activities and development of any new landfill, could produce noise levels that exceed the
Sonoma County General Plan noise criteria or cause a substantial, permanent increase in ambient noise
levels.
Mitigation Measures
NoiseNjti&Ilioji Measure 11 -22 —
(a) Where feasible, collection activities associated with these facilities shall be conducted during
hours of the day which are not noise sensitive for nearby residents and other adjacent land uses.
The activities shall be commissioned to occur during normal work hours of the day to provide
relative quiet during the more sensitive evening and early morning periods.
(b) The County and cities shall include noise as an evaluation criterion when purchasing new
waste /recyclables transportation vehicles, and will purchase the quietest vehicles available when
reasonably possible. If the County does not make direct purchases of such vehicles, they will
require their licensed /franchised haulers, via their license /franchise agreements, to include noise
as an evaluation criterion in their purchase of vehicles.
(c) A site - specific noise evaluation shall be conducted as part of the siting study for a new and
expanded non - disposal facilities to identify potential noise problem areas prior to site selection.
The noise evaluation shall consider the location of sensitive receptors and evaluate sound barriers
or other means to reduce noise exposure. The evaluation shall also consider operational changes
such as restricting hours of operation.
Noise Mitigation Measure 11 -3 —
(a) Same as Mitigation Measure 11 -2 (b) and (c).
(b) The noise evaluation described in Mitigation Measure 11 -2 (c) shall consider the location of
sensitive receptors and locate equipment and operations to minimize the noise exposure to the
extent practical. The evaluation should consider enclosures for noisy equipment or sound barriers
to shield off -site receptors from noise.
Noise Mitigation Measure 11 -5 — Same as Mitigation Measures 11 -2 (a) and (b) .
Noise Mitigation Measure 11 -6 —
(a) Same as Mitigation Measure 11 -2 (b). In addition the following mitigation measure is added:
(b) During project analysis, sound levels for landfill and quarry equipment will be analyzed to
determine whether standards would be exceeded. If it is determined that noise standards would
be exceeded at the property line of any residential use, the project shall include, to the extent
practical, sound barriers, special mufflers on equipment, or other means to reduce the noise levels
at the property line. A berm or other noise barrier shall be used to break the line of sight between
noisy equipment, such as rock hammers and rock crushers, and the property line prior to
operation of the equipment.
VEGETATION AND WILDLIFE
Significant Effects
Veszetation and Wildlife Impact 12 -2 — The development of a new landfill or the expansion of the Central
Landfill could potentially affect listed and sensitive species and sensitive natural communities. The new
and expanded landfill could have the following effects:
(a) Eradication of existing biological component in the active landfill area.
(b) Disturbance to adjacent sites and buffers due to containment and clean -up activities
where sensitive species may occur.
(c) Increased traffic on local roads leading to the landfill, resulting in vehicle collisions with
listed and sensitive animals.
(d) Creating an attractive nuisance for certain listed and sensitive animals choosing to forage
in landfills, subjecting them to toxic substances, crushing by heavy equipment, and
unnatural food sources.
(e) Providing conditions which allow populations of native and exotic species to congregate
and /or increase, resulting in competition with and /or predation upon listed and sensitive
species.
4 ,
(a) No solid waste disposal facility shall be built or expanded within a wetland unless it can
be demonstrated that the landfill will not contribute to or cause significant degradation of
wetlands or violations of the Clean Water Act or State water quality standards, jeopardize
endangered or threatened species, violate any toxic effluent standard, or violate any
requirement of the Marine Protection, Research, and Sanctuaries Act. There must also be
no practicable alternative to the proposed location which does not involve wetlands.
(Title 40, Chapter 1, Subchapter 1, Part 258, Subpart B 40 CFR 258 ).
(b) When new non - disposal facilities are proposed, site specific biotic studies shall be
performed to identify biotic resources on the sites. To the extent practical the new
facilities shall be constructed to avoid these resources. Where avoidance is not practical
the project sponsor shall consult with the appropriate State or Federal resource agencies
to determine appropriate mitigation ,for any loss of or change to the biotic resources. The
project sponsor shall acquire all necessary permits from these agencies. Compliance with
permit conditions shall be a condition of approval of the project.
(c) Riparian areas shall be avoided where possible in siting new facilities. If avoidance is not
possible, compensation for loss of riparian vegetation shall be made by planting and
otherwise enhancing a comparable area of streambank in the general vicinity where
habitat quality can be improved. Planting plans shall be reviewed by a qualified biologist
and submitted to the California Department of Fish and Game and other agencies, if
needed, for review and comment prior to implementation. Revegetation areas shall be
managed to permanently protect the riparian vegetation.
(d) Before construction during the active nesting period between March 1 and September 1, a
qualified biologist shall determine the locations of any active raptor nests that could be
affected. If any active nests are found, removal of the trees containing the nests shall be
delayed until a qualified wildlife biologist has determined that the young birds are able to
leave the nest and forage on their own. A qualified wildlife biologist shall be consulted to
determine what activities must be avoided in the vicinity of the nests while the nests are
active, and those recommendations shall be followed during construction.
VISUAL RESOURCES
Significant Effects
Visual Resources Impact 14 -1 —New and expanded non - disposal facilities could be visible from
surrounding areas, which could impact scenic vistas, waterways, routes, ridges, and degrade the existing
character or quality of the site and its surroundings, that may result in significant aesthetic impacts.
Visual Resources Impact 14 -2 —New and expanded non - disposal facilities could potentially impact visual
resources through the generation of litter in site areas and along transportation routes.
Visual Resources Impact 14 -3 —New and expanded solid waste disposal facilities (including lighting
plans) could be visible from surrounding areas, which could impact scenic vistas, waterways, routes,
trees, rock outcroppings, ridges, including historic buildings within a state scenic highway, and could
result in significant aesthetic impacts.
Visual Resources Impact 14 -4 — New and expanded solid waste disposal facilities could potentially
impact visual resources through the generation of litter at the site and along transportation routes to the
site.
Mitigation eas res
(a) To the extent possible, new facilities shall not be located within Designated Scenic Resource
Areas as designated in the Sonoma County General Plan unless the facilities are not visible from
public roads.
(b) A landscaping plan for each facility, if required by local regulations, shall include visual
mitigation measures, such as earthen berms, tree screening, and other landscaping elements along
the perimeter of the site in order to screen the proposed facility from public view. Earthen berms
and tree screening would be especially important along nearby roadways or other visual corridors.
(c) Existing trees shall be retained to the extent feasible as a visual screen.
(d) New or expanded facility buildings shall be located away (to the extent feasible) and shall
maximize the use of any natural shielding provided by the relief of site landforms.
(e) Consistent with any required local design review recommendations, facility support buildings
and site plans shall be designed and constructed with appropriate materials, exterior colors, and
architectural details compatible with the natural landscape and surrounding development in the
project vicinity.
(f) Disturbed areas that are not directly a part of the project shall be revegetated immediately
following construction.
(g) Project lighting equipment shall be of low- profile design, unobtrusive, and consistent with
adjacent land uses.
Visual Resources Mitigation Measure 14 -2 —
On -site Mitigation:
(a) Litter shall be controlled by a litter abatement program.
(b) Litter fences shall be established around new or expanded non - disposal facilities, as
necessary to prevent litter blowing onto off -site areas.
(c) Litter along on -site roads shall be collected and removed routinely,.
Off -site Mitigation:
(d) Litter shall be controlled on nearby roads providing access to new or expanded non - disposal
facilities with a litter abatement program.
(e) Open cargo areas of vehicles hauling waste shall be covered. This requirement will be
enforced with financial penalties levied at the time of delivery to County non - Disposal Sites and
by the California Highway Patrol (CHP) in the areas near disposal sites.
(f) A litter abatement program shall be implemented to reduce litter accumulation resulting from
the activities of commercial haulers. The program could include but not be limited to:
1) education of commercial haulers, and 2) requirements for thorough cleaning of debris boxes,
covering emptied containers or other similar measures to reduce litter created upon exiting non -
disposal facilities.
(g) The litter abatement program shall consider limiting non - disposal facility operations to
commercial or private (general public) haulers, including the co- location of disposal and non -
disposal facilities to reduce roadside litter.
Visual Resources Mitigation Measure 14 -3 — Same as Mitigation Measures 14 -1 (a), (b), (c), and (g).
(d) New or expanded landfills shall utilize site buffer areas (to the extent feasible) and shall
maximize the use of any natural shielding provided by the relief of site landforms.
(e) Consistent with any required local design review recommendations, construct new and
expanded landfills and facility support buildings with appropriate materials, exterior colors, and
architectural details compatible with the natural landscape and surrounding development in the
project vicinity.
(f) Disturbed areas that are not directly a part of the project shall be revegetated as soon as
practicable.
In addition, the following mitigation measures are added:
(h) Exterior security lighting plans shall be prepared for all new facilities. Designs shall be
consistent with County design standards, including exterior lighting that does not glare onto
adjacent parcels, and includes motion sensors to minimize light and glare impacts on surrounding
land uses.
(i) Visual analysis of the Central Landfill expansion or a new landfill shall include photo
simulation, three dimensional terrain modeling or similar methods to evaluate change in visual
character as seen from nearby public roads.
Visual Resources Mitigation Measure 14 -4 — Same as Mitigation Measure 14 -2 (a), (c), (d) and (e).
On -site Mitigation:
(b) Litter fences shall be established around active landfill areas to prevent litter from blowing
onto off -site areas.
Offsite Mitigation:
(d) Litter shall be controlled with a litter abatement program on nearby roads which provide
access to new or expanded disposal facilities.
In addition, the following mitigation measures are added:
(f) Roadsides adjacent to landfill sites shall be cleaned each day the landfill is open. Signs will be
posted on roadways adjacent to the landfill site that will give a phone number that people may
call to report vehicles that are seen littering on the way to or from the landfill. The County or
their designee will, to the extent feasible, identify offending haulers and request that corrective
action be taken.
(g) A litter abatement program will be implemented to reduce litter accumulation resulting from
the activities of commercial refuse haulers. The program could include, but not be limited to:
1) education of commercial refuse haulers, and 2) requirements for thorough cleaning of debris
boxes, covering emptied containers or other similar measures to reduce litter created upon exiting
the Central Disposal Site or any new landfill.
EXHIBIT C
ALTERNATIVES
The alternatives in the FSPEIR were selected for evaluation because they could feasibly attain most of the
project objectives, but would avoid or substantially lessen significant environmental effects of the
proposed project. The alternatives to the proposed 2003 CoIWMP are: 1) No Project; 2) SRRE —
Materials Recovery Facility (MRF) Combined with an Enclosed (Indoor) Green Waste Composting
Facility; and 3) Siting Element — No Siting of a New Landfill with Export of Waste. A comparison of the
alternatives is attached in Table 18.1.
1) NO PROJECT ALTERNATIVE
This alternative would retain the Source Reduction and Recycling Element (SRRE), Non - Disposal
Facilities Element (NDFE), and Siting Element as adopted in the 1996 CoIWMP.
Under this alternative, the adopted 1996 CoIWMP would remain the planning document for the
management of solid waste in Sonoma County. Projects consistent with the 1996 CoIWMP would
continue to be implemented, but none of the new programs proposed in the 2003 CoIWMP would be
implemented.
Impacts Analysis and Comparison
Recent advancements in solid waste technologies, programs, and management practices required to meet
AB 939 requirements are not included in the1996 CoIWMP. When compared with the proposed 2003
CoIWMP, the 'No Project" alternative includes eliminated, changed, and unchanged impacts.
With the No Project alternative there would not be an RMF or a new transfer station in Santa Rosa.
Therefore, the impacts associated with these facilities would not occur. However, the lack of an RMF
would generally increase landfill- related impacts compared to the proposed 2003 CoIWMP. This is
because the No Project alternative would not have an RMF, and the volume of solid waste to be disposed
of would not be reduced as much as it would with the proposed 2003 CoIWMP. Therefore, the No
Project alternative would require a larger landfill than the 2003 CoIWMP, and landfill- related impacts
would be increased.
Although some expansion within the existing landfill boundaries would be allowed with the No Project
alternative, the primary provision for extra disposal space would be limited to the standard practice of
siting a new landfill. This alternative does not include the acquisition of neighboring parcels for
expansion and the consolidation of solid waste disposal operations at the existing Central Landfill.
Siting a new landfill is accelerated in this alternative by the lack of advanced technologies that would
reduce disposable waste volumes. Reducing the volume of waste for disposal, other than the
conventional composting of green waste and separating recyclables, is missing from this alternative.
Meaningful reduction in disposable waste volume is less under this alternative, compared to the proposed
project. Introducing state -of -the -art technologies and solid waste management becomes less feasible
under the No Project alternative because it would not include flow control. Flow Control is necessary to
ensure funding will be available for large capital projects such as the RMF.
Evolving technologies and waste management practices (e.g., the RMF and advanced energy recovery
systems) are not considered with the current solid waste policies in Sonoma County. In sum, this
alternative is more wasteful than what is proposed in the 2003 CoIWMP.
2) SRRE — MRF COMBINED WITH AN ENCLOSED (INDOOR) GREEN WASTE
COMPOSTING FACILITY
This alternative would construct a Materials Recovery Facility (MRF), rather than the proposed Resource
Management Facility (RMF). This alternative is based on specific assumptions identified in the Section
18 of the FSPEIR.
Although this alternative could be located at the Central Landfill, the space available at the site may be
insufficient to accommodate these facilities. Other locations may be available at sites designated for
MSW facilities, industrial, or commercial land uses in Sonoma County's General Plan.
This alternative would accept residential /commercial /industrial mixed wastes from the cities and
unincorporated areas of Sonoma County. It would retain all other programs and policies of the proposed
SRRE (e.g., mandatory recycling access, flow control, and new transfer station) and Siting Element (e.g.,
expansion of the Central Landfill and siting a new landfill). In contrast with the proposed project, the
MRF would not recover energy from the refuse.
Impacts Analysis and Comparison
The enclosed operation would include the composting of green waste inside a building. This alterative
would eliminate storm water runoff and odor impacts on surrounding land uses because the green waste
composting facility would be enclosed. Also, chemical impacts would be eliminated because there would
be no chemical digestion of solid waste from the proposed RMF. This alternative would exhibit changed
impacts resulting from the reduced demand for water supplies and by reducing public exposure to fungi
and bacteria. In addition, the potential of accidental combustion of toxic chemicals, the creation of PMIo,
odors, and operational noise would be less. Some reduction in waste volume would be achieved
compared to the no project alternative. However, it would not reduce waste volume as much as the
proposed project, and would require more landfill capacity than the proposed project. Therefore, landfill -
related impacts would be increased with this alternative compared to the proposed project. There would
be increased impacts to roadside litter, open space, mineral resources, leachate production, soil erosion,
volume and flow of surface waters, blasting and blasting spills /ground vibrations, traffic impacts, noise,
and conflicts with surrounding land uses.
Although the impacts of the green waste composting operation would be reduced, increased landfill -
related impacts make this alternative less desirable than the proposed project.
All other impacts remain unchanged from the 1996 CoIWMP EIR.
3) SITING ELEMENT — NO SITING OF NEW LANDFILL WITH EXPORT OF WASTE
This alternative would not site a new landfill in Sonoma County and would export all of the MSW out of
Sonoma County. This alternative is based on specific assumptions identified in the Section 18 of the
FSPEIR.
Full export of Sonoma County's MSW would eliminate the need to use and expand the Central Landfill
or to site a new landfill as proposed in the 2003 CoIWMP. It would require additional non - disposal
facilities to accommodate truck and /or rail transfer of solid waste to out -of- county disposal site(s). Full
export is often done by jurisdictions with inadequate area for landfills. Out -of- county disposal could
result in loss of control over disposal and transportation costs and would reduce the County's flexibility in
dealing with waste disposal issues in the future. Although this alternative assumes that no MRF or RMF
would be constructed in Sonoma County, development of these facilities in the county could occur in the
future and subsequently reduce the demand for transfer stations. Since a RMF may not be constructed for
some time, this alternative assumes that no RMF would be constructed, but that development of other
new and expanded non - disposal facilities would proceed as proposed in the 2003 CoIWMP. Potential
options outside of Sonoma County for future solid waste disposal have been addressed in the Sonoma
Count, Solid Wastg mC lti r ag mci t Altertiafiyg5 ,, Mi.ly i_UJIY6
jicct I° it al F elIgrt ( "Alternatives Analysis ")
prepared December 29, 2000, by SCS Engineers.
According to the Alternatives Analysis, export of MSW would require the County or the SCWMA to
consider candidate sites and negotiate disposal capacity at one or more existing or proposed private or
publicly owned Class III landfill sites located outside of Sonoma County. At a minimum, it is assumed
that the landfill operations would employ environmental protection standards embodied in Subtitle D and
CCR Title 27 regulations (or the equivalent of CCR Title 27 for out -of -state facilities). As stated above,
this alternative would likely require expansion of existing in- county transfer stations (to accommodate
truck and /or rail transfer) and /or future siting, permitting, and development of new transfer stations/MRF
or RMF sites in Sonoma County. Incorporated areas in Sonoma County could use SCWMA
MRF /RMF /transfer station(s) or pursue their own disposal options.
Potential air quality, litter, noise, and traffic impacts could result from the transport of solid waste from
facilities in Sonoma County to out -of- county landfills. Implementation of this alternative may require
delivery and pre - processing of solid waste at existing and /or future MRF /RMF /transfer station(s) in
Sonoma County, including the identification of potential long -term out -of- county disposal sites.
The counties that would likely be impacted from export of MSW include Alameda, Contra Costa, Marin
and Solano. Surrounding counties have, or have arranged for, adequate disposal capacity for the next 30
to 40 years. Examples of jurisdictions that export their solid waste include both Napa and San Francisco
Counties. Napa County trucks its MSW to the Keller Canyon Landfill in Contra Costa County; San
Francisco City /County trucks nearly all of its waste to the Altamont Landfill in Alameda County.
Altamont Landfill obtained approval in 2000 for an expansion, which will extend the life of the facility to
approximately 2029.
Although this alternative would eliminate the need to expand the existing Sonoma County Central
Landfill or site a new landfill in Sonoma County, it would not achieve several 2003 CoIWMP project
objectives as described at the end of Section 18.4.
Impact Analysis and Comparison
Landfill impacts under this alternative are transferred from Sonoma County to another county. This
alternative could involve the development of more non - disposal facilities (e.g., transfer stations) to
prepare and export solid waste to other counties in the Bay Area. Expansion and siting of landfills in
Sonoma County could be replaced by disposal arrangements with neighboring counties. Because
composting of green waste is not landfill- dependent, it could continue to operate within the County.
This alternative would eliminate open space and mineral resource impacts caused by landfills in Sonoma
County, including conflicts with surrounding land uses. In addition, it would eliminate leachate, storm
water runoff, soil erosion, volume and flow of surface waters, blasting and blasting spills /ground
vibrations, public safety, traffic, air quality and visual impacts from landfill development and operation.
In Sonoma County, this alternative would have impacts different from the proposed project due to
increased surrounding land use conflicts from additional transfer stations. Compared to the proposed
project, it would have increased visual, litter, storm water runoff, flooding, soil erosion, injury and illness,
accidents, combustion and exposure of toxics, vectors, traffic, air quality, and odor impacts caused by
these added facilities.
Dependency on out -of- county transport infrastructure, haul routes, landfill capacity and disposal
management that would be provided and maintained by other jurisdictions would result from this
alternative.
All other impacts remain unchanged from the 1996 CoIWMP EIR.
It is concluded that this alternative would not be environmentally superior to the proposed project. While
this alternative would remove certain significant landfill- related impacts from Sonoma County, these
impacts would be transferred to some other location in another County. At the same time, impacts
associated with the transport of refuse would increase with this alternative.
CONCLUSION
The 2003 CoIWMP, as mitigated, would have the lowest overall environmental impact. The first
alternative (No Project) would increase the need for additional landfill capacity and would not reduce
disposable solid waste volumes, nor produce energy associated with the proposed RMF. Alternative No.
2 (MRF combined with enclosed composting facility) would provide some reduction in disposable solid
waste volumes, but not to the same degree as the proposed project. In addition, energy production would
be missing as compared to the proposed RMF. Lastly, the third alternative (No Siting of New Landfill
with Export of Waste) would eliminate the need for further landfill expansion, or siting in Sonoma
County, but would shift the associated environmental impacts outside Sonoma County. Moreover,
addition transfer stations would be required to accommodate the export of the County's solid waste.
Therefore, based on the analysis and comparison of the above alternatives, the 2003 CoIWMP, with the
mitigation measures as proposed in this DSPEIR, is the environmentally superior alternative.
Table 18.1: Comparison of Project Alternatives to the Project Objectives.
# Objective No MRF w /enclosed No new
Project source - separated green landfill;
waste composting export
facility waste
Y =Meets Objective N/A =Not Applicable N =Does Not Meet Objective
1 In order to help ensure the sustainability of our communities and
to conserve natural resources and landfill capacity, the SCWMA,
County and the Cities will continue to improve their municipal N Y Y
solid waste management system through emphasis on the solid
waste management hierarchy of waste prevention (source
reduction), reuse, recycling, composting and disposal.
2 The County and the Cities will achieve a 50 percent diversion of
wastes being disposed of in County landfills by the year 2003 and N Y Y
a 70 percent diversion rate by 2015 based on 1990 rates.
3 Satisfy the AB 939 solid waste planning and diversion mandates in
a manner that is consistent with the objectives of the community, N N N
as reflected by the deliberations and documents of the AB 939
Local Task Force and SCWMA.
4
The solid waste management system in Sonoma County will be
planned and operated in a manner to protect public health, safety
Y
Y
Y
and the environment.
5
The County will provide alternative disposal options for recyclable
items or materials such as, but not limited to, yard debris,
Y
Y
N
recyclable wood waste, whole tires, and appliances and ban the
landfill disposal of these items.
6
The County and the Cities and/or the SCWMA will provide cost -
effective and environmentally sound waste management services,
including special waste and household hazardous waste handling
Y
Y
N/A
and disposal, over the long term to all community residents and
promote access to the services.
7
The County and the Cities will provide access to residential
recycling programs for all households, including single - family,
N
Y
Y
multi- family, and mobile homes, that subscribe to garbage services
by the end of the short-term planning period.
8
The County's solid waste disposal facilities will be sited and
operated in a manner to minimize energy use, conserve natural and
Y
Y
N
financial resources, and protect prime agricultural lands and other
environmentally sensitive or culturally sensitive areas.
9
The County will develop disposal capacity for solid waste not
handled by other elements of the management hierarchy for a 50-
N
Y
N
year horizon. Disposal capacity is addressed in the Siting Element
of the CoIWMP.
10
Use the existing landfill parcel to maximize its useful life and
maximize the return on the public infrastructure improvements so
Y
Y
N
far as it is consistent with protection of the environment.
11
Provide landfill capacity at least through the year 2017 as required
Y
Y
N
by state law by expanding the Central Landfill.
12
Direct the flow of all refuse produced in Sonoma County to
integrated waste management facilities publicly owned and located
within Sonoma County or its incorporated cities in order to
N
Y
Y
provide cost effective waste disposal services to all community
residents.
13
Maintain local control over costs and environmental impacts of
Y
y
N
disposal by siting facilities within Sonoma County.
14
The SCWMA, County and the Cities will encourage and support
the use of waste minimization practices for business, government
Y
Y
Y
agencies, and the public by distributing information on the
availability of waste minimization options.
15
Complement existing and planned private sector operations for
Y
Y
Y
collection /processing of both refuse and recyclables.
16
Create and maintain employment opportunities for Sonoma
County residents and growth opportunities for Sonoma County
Y
N
businesses, industries and entrepreneurs who make productive use
of otherwise wasted materials.
17
Make productive use of waste that is not reused or recycled
Y
N
Y
through energy production.
18
The SCWMA, County and the Cities will provide access to
composting opportunities through implementation of composting
N
Y
Y
facilities and programs which may be regional or local, public or
private.
19 The County and/or the Cities will provide solid waste disposal
facilities or transfer facilities within reasonable distances of the
county's population centers. This policy will provide a means for Y
achieving the goal of conservation of natural resources and energy
and minimizing the cost of disposal.
EXHIBIT D
MITIGATION MONITORING PROGRAM
FOR THE
FINAL SUPPLEMENTAL PROGRAM ENVIRONMENTAL IMPACT REPORT
2003 SONOMA COUNTY INTEGRATED WASTE MANAGEMENT PLAN
(2003 CoIWMP)
Introduction
The SCWMA is the lead agency for the 2003 CoIWMP Final SPEIR ( FSPEIR). As lead agency, it is
responsible for ensuring that the mitigation measures included in the certified FSPEIR are adequate,
feasible, and implemented pursuant to CEQA. The purpose of this Mitigation Monitoring Program is to
identify how the SCWMA will comply with these requirements.
As identified in the 2003 CoIWMP, the SCWMA is a composite of the County of Sonoma and different
incorporated jurisdictions located within Sonoma County. Specific projects that will implement the 2003
CoIWMP may be carried out or permitted by the County of Sonoma, one of the incorporated cities, or the
SCWMA. The mitigation measures identified in the 2003 CoIWMP FSPEIR will be the responsibility of
the entity proposing to carry out the project. It is anticipated that these entities will function as Lead
Agencies in accordance with CEQA.
Section 21081.6 of the Public Resources Code requires that, when making findings required by
subdivision (a) of Section 21081, a lead agency shall adopt a reporting or monitoring program for
"changes to the project which it has adopted or made a condition of project approval in order to mitigate
or avoid significant effects on the environment. The reporting or monitoring program shall be designed to
ensure compliance during project implementation."
The Mitigation Monitoring Program for the 2003 CoIWMP is organized in outline form and keyed to
each adopted FSPEIR mitigation measure. For each measure, the following information is provided:
1. A statement of the mitigation measure;
2. The timing for verification of implementation of the mitigation measures.
3. Specification of the party /parties responsible for implementation of the measure;
4. The assignment of mitigation monitoring responsibility; and
For most Mitigation Measures, the verification timing and agencies responsible for implementation and
monitoring are indicated and are self - explanatory; however, additional explanation is provided for the
following situations.
In cases where the timing for verification of the mitigation is indicated as "ongoing ", the agency
responsible for monitoring compliance with the mitigation already had jurisdiction over the activity along
with inspection obligations required by law. For example, to mitigate impacts to Hydrology and Water
Quality (Mitigation Measure 7 -6), solid waste disposal facilities are required to cover waste with soil (or
other cover material) each day to prevent contact with stormwater. This measure will be monitored on a
regular and ongoing basis through required inspections by the Local Enforcement Agency (Sonoma
County Public Health Department, Environmental Health Division).
In certain cases, where "implementation' of a plan is a part of the Mitigation Measure, and two agencies
are listed as responsible for monitoring, the first agency listed is responsible for ensuring that such a plan
is prepared. The second agency listed has jurisdiction under existing law to enforce implementation and
compliance with requirements of the plan. For example, to mitigate impacts to Hydrology and Water
Quality (Revised Mitigation Measure 7 -3), solid waste non - disposal facilities are required to prepare a
detailed Erosion and Sedimentation Control Plan. In this case, the Member Jurisdiction as lead agency
will ensure that such a plan is prepared followed by the review, approval, and monitoring by the Regional
Water Quality Control Board.
In general, this monitoring plan ensures that each mitigation measure will be implemented because the
designated monitoring agency will make sure that the party responsible for implementing the measure has
actually carried out the measure (or otherwise appropriately guaranteed that it will be complied with
through contractual or other agreements) before the particular project is allowed to go any further in the
construction or operations process. For instance, if the timing for verification of implementation of a
mitigation measure is noted as "prior to issuance of building permits," then the party responsible for
complying with the mitigation measure (usually the project applicant) will have to demonstrate to the
monitoring agency that the measure has been implemented before the monitoring agency will issue a
building permit.
Any new or expanded solid waste disposal facilities that result from implementation of the 2003
CoIWMP are expected to be located on land within the jurisdiction of the County. Therefore, the
monitoring agency for each mitigation measure designed to address disposal facilities is generally a
County agency. The 2003 CoIWMP contemplates, however, that new or expanded solid waste non -
disposal facilities may be located either in a city within the County or on land under County jurisdiction.
Because it is not now known precisely where such facilities will be (and several of the same type of
facilities may be located in different cities throughout the County), the monitoring program specifies that
the member jurisdiction and a city if the property lies within a city's boundaries — will monitor
compliance with mitigation measures required for that project.
Abbreviations
Abbreviations used in this Mitigation Monitoring Program include the following:
BAAQMD — Bay Area Air Quality Management District
LEA — Local Enforcement Agency (Sonoma County Environmental Health)
NSCAPCD — Northern Sonoma County Air Pollution Control District
RWQCB — Regional Water Quality Control Board
SCWMA — Sonoma County Waste Management Agency
LAND USE
Mitigation Measure 4 -1
In siting new or expanded solid waste non - disposal facilities, examine land uses surrounding
potential sites and take possible land use conflicts into account in making siting determinations.
In addition, require each new or expanded facility to incorporate design and operational measures
to minimize land use conflicts. Examples of such measures include establishing buffer zones,
sound - proofing facilities, restricting outdoor activities and limiting hours of operation.
Timing of Implementation - Prior to project approval; Prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Mitigation Measure 4 -2
In siting new or expanded solid waste disposal facilities, examine land uses surrounding potential
sites and take possible land use conflicts into account in making siting determinations. In
addition, require each new facility to incorporate design and operational measures to minimize
land use conflicts. Examples of such measures include establishing buffer zones, visual screens
using berms and landscaping, and limiting hours of operation.
Timing of Implementation - Prior to project approval; Prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency,
Mitigation Measure 4 -3
Although solid waste facilities would be subject to the Exclusionary and Comparative Criteria in
the2003 CoIWMP Siting Element, there are no mitigation measures for the loss of important
resource lands or for the change in character of the lands. Therefore, this impact is considered
significant and unavoidable.
Timing of Implementation - Prior to project approval.
Implementation - Lead Agency.
Monitoring -Lead Agency.
Mitigation Measure 4 -4
Geologic studies of future landfill expansion and new landfill sites will address the possibility
that mineral resources could be located under sites of new facilities. To the extent practical,
mineral recovery efforts will be incorporated into the construction of the Central Landfill
expansion or new landfills.
Timing of Implementation - Prior to project approval,
Implementation - Lead Agency.
Monitoring - Lead Agency.
GEOLOGY AND SEISMICITY
Revised Mitigation Measure 5-1
(a) Non - disposal facilities shall be built a sufficient distance from earthquake fault zones as
restricted by state and federal regulatory requirements.
(b) Where proposed development may be exposed to significant risks of damage from geologic
hazards, a geologic report (prepared by a California Registered Geologist) shall be prepared
which evaluates the hazards and shall identify measures which can be implemented to reduce the
risks to acceptable levels. Such measures will be implemented.
(c) All grading and building construction for new or expanded non - disposal facilities shall
conform with geologic and seismic standards contained in the latest edition of the Uniform
Building Code (UBC). Prior to construction activities, the applicant shall submit building plans
to the local jurisdictions' building department indicating compliance with the UBC.
(d) All new or expanded disposal facilities shall meet the requirements of the County or Cities'
general site design standards. The proposed new non - disposal facilities shall comply with the
County or cities' policies and standards pertaining to geologic hazards.
Timing of Implementation - (a), (b) Prior to project approval; (c), (d), Prior to project
construction.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 5 -2
(a) Same as Mitigation Measures 5 -1 (b) and 5 -1 (d).
(b) All new or expanded non - disposal facilities that are susceptible to seismic ground failure (i.e.,
liquefaction) shall include project designs (e.g., soil densification) for building and road
foundations to withstand potential liquefaction impacts.
Timing of Implementation - Prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 5 -3
(a) New or expanded disposal facilities shall be built a sufficient distance from earthquake fault
zones or as restricted by state and federal regulatory requirements.
(b) Where proposed development may be exposed to significant risks of damage from geologic
hazards, a geologic report (prepared by a California Registered Geologist) shall be prepared
which evaluates the hazards and shall identify measures which can be implemented to reduce the
risks to acceptable levels. Such measures will be implemented.
(c) All grading and building construction for new or expanded disposal facilities shall conform
with geologic and seismic standards contained in the latest edition of the Uniform Building Code
(UBC). Prior to construction activities, the applicant shall submit building plans to the local
jurisdictions' building department indicating compliance with the UBC.
(d) All new or expanded disposal facilities shall meet the requirements of the County or cities'
general site design standards. The proposed new and expanded disposal facilities shall comply
with the County or cities policies and standards pertaining to geologic hazards.
(e ) In accordance with state and federal regulations, restrict the development of landfills in
geologically unstable areas.
(f) In accordance with state and federal regulations, restrict the development of landfills in
seismic impact zones unless containment structures (leachate collection systems, liners, surface
water management systems, etc.) are engineered and constructed to preclude failure during rapid
geologic change.
Timing of Implementation - (a), (b), (e), (f) Prior to project approval; approval; (c), (d) Prior to
project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency, Regional Water Quality Control Board,
Revised Mitigation Measure 5 -4
(a) Same as Mitigation Measures 5 -3 (a through f).
(b) All new or expanded disposal facilities that are susceptible to seismic ground failure (i.e,
liquefaction) shall include project designs (e.g., soil densification) for building and road
foundations to withstand potential liquefaction impacts.
Timing of Implementation -Prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency, Regional Water Quality Control Board, .
Mitigation Measure 5 -5
The grading plan for the West Expansion area at the Central Disposal Site and the future landfill
will incorporate design features to prevent slope failures. These include maximum fill slopes as
determined suitable by a registered engineering geologist. The embankments of new
sedimentation basins and landfill slopes will be constructed so that the factor of safety is greater
than 1.5.
• Timing of Implementation -Prior to project construction.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Mitigation Measure 5 -6
Final landfill grades will be constructed in accordance with Section 20650 of Title 27 of the CCR
which requires that "Covered surfaces of the disposal area shall be graded to promote lateral
runoff of precipitation and to prevent ponding. Grades shall be established of sufficient slopes to
account for future settlement of the fill surface." Grades will be of sufficient slopes to allow for
future settlement of the final cover and to avoid ponding and infiltration of stormwater. The
landfill gas collection system will use flexible pipe and be designed to accommodate settlement
of the refuse.
Timing of Implementation - Prior to project construction; ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency, Local Enforcement Agency, Regional Water Quality Control Board.
SOILS AND AGRICULTURAL RESOURCES
Revised Mitigation Measures 6 -1
(a) All new facilities shall be designed and constructed to conform with the site development
standards contained in the latest edition of the Uniform Building Code (UBC). Prior to
construction activities, the applicant shall submit building plans to the local jurisdiction's
building department indicating compliance with the UBC.
(b) All new facilities shall meet the requirements of the County or cities' standards pertaining to
site design, grading, and erosion control.
(c) Vegetation on soils exposed during construction shall be reestablished as soon as practical.
Mulch or other temporary cover shall be used in the interim where erosion potential exists.
(d) Employ Best Management Practices as required under the NPDES Permit for Construction
grading.
(e) To the extent feasible, confine grading, excavation, and other earthwork to the dry seasons.
When this is not feasible, erosion and sediment transport control facilities should be in place prior
to the onset of the first major winter storms. If wind erosion has the potential to occur during
summer months, erosion control methods, such as watering graded areas, shall be implemented.
(f) Prepare and implement detailed erosion and sedimentation control plan(s), which should be
submitted for review and approval by the RWQCB. The specific language of such plans varies,
but the concepts to be adhered to include the following:
To avoid discharge to natural waterways, sediment should be trapped before leaving
the construction site through the use of rip -rap, hay bales, fencing, or sediment ponds,
Areas of surface disturbance should be minimized.
Disturbed areas should be stabilized through vegetative or mechanical
methods. When construction is complete, all disturbed areas should be
regraded and revegetated. Topsoil should be stockpiled and used.for
the revegetation of disturbed areas.
Timing of Implementation - (a) through (f) Prior to and during project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency, Regional Water Quality Control Board.
Mitigation Measures 6 -2
To the extent feasible, all new facilities and expansion of existing facilities shall comply with the
General Plan objectives and avoid siting on agricultural lands as defined in the General Plan.
If a non - disposal facility is sited on agricultural land, this would constitute a significant and
unavoidable impact.
Timing of Implementation -Prior to project approval.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 6 -3(a)
Storm Water Pollution Prevention Plans shall be prepared and revised as needed for all facilities at
the Central Disposal Site or other new landfills. Plans shall be submitted to the Regional Water
Quality Control Board and at a minimum shall include:
(a) A description of the critical features of the erosion control system, including sediment ponds
and drainage ways, along with a description and schedule for routine maintenance of these
features.
(b) A construction schedule for components of the erosion control system.
Timing of Implementation - (a) Prior to project construction, during project construction,
ongoing; (b) Prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency, Regional Water Quality Control Board
Additions to Mitigation Measure 6 -3(a)
(c) A requirement to vegetate side slopes and waste -fill slopes. Temporary and permanent
vegetative cover shall be established as soon as possible on side slopes and waste -fill slopes. To
protect the slopes prior to vegetation establishment, a mulch, consisting of straw or wood fiber
shall be applied at the time of seeding. A tackifier shall be applied with the mulch as needed to
prevent loss of the mulch due to wind or water movement. Sample specifications for revegetating
disturbed areas shall be included, with a description of the types of areas to be revegetated, the
equipment and procedures to be used, and the dates for the seeding. For areas where an erosion
potential exists, but it is not practical to establish vegetation, specifications for placing mulch or
temporary covers shall be included.
(d) Specifications for construction features to reduce erosion. These shall include benches on
slopes to intercept sheet flow and shorten drainage paths, protective linings (e.g., riprap, concrete,
grass, erosion control mats) on interim and final drainage ways, and energy dissipators at inlets
and outlets of sediment ponds and at outlets of culverts.
(e) Best Management Practices for construction and operation of the landfill and other facilities..
This includes miscellaneous grading and removal of cover soil from all facilities.
(f) Specifications for watering roads, borrow areas, and construction areas to control wind
erosion.
(g) An inspection and /or maintenance schedule for critical parts of the sediment control system,
including sediment ponds and drainage ways.
(h) A schedule for winterizing that will ensure that critical work is done prior to October 15th
each year.
Timing of Implementation - (c) Prior to project construction, during project construction,
ongoing; (d) Prior to project construction; (e), (f) Prior to project construction, during project
construction; (g), (h) Prior to project construction.
Implementation - Lead Agency.
Monitoring -Lead Agency.
New Mitigation Measure 6 -3(b)
Although solid waste facilities would be subject to the Exclusionary and Comparative Criteria in
the 2003 CoIWMP Siting Element, there are no mitigation measures for the loss of important
agricultural lands or for the change in character of the lands. Therefore, this impact is considered
significant and unavoidable.
Timing of Implementation - Prior to project approval.
Implementation - Lead Agency.
Monitoring - Lead Agency.
HYDROLOGY AND WATER QUALITY
Revised Mitigation Measure 7 -I
(a) Stormwater runoff from waste handling areas shall be treated on site or routed to the sanitary
sewer for treatment prior to discharge.
(b) To the extent feasible, materials handling and storage areas shall be covered to prevent
contact with stormwaters.
(c) All exterior drainage from each site shall be managed in accordance with the requirements of
federal NPDES, state, and local regulations.
Timing of Implementation - (a), (b) Prior to project construction, ongoing; (c) Prior to project
construction, ongoing.
Implementation - Lead Agency.
Monitoring -Lead Agency, Regional Water Quality Control Board, Local Enforcement Agency,
Mitigation Measure 7 -2
(a) To the extent feasible, new facilities shall be located outside of areas at high risk for flooding
(i.e., near rivers, within 100 -year floodplains).
(b) The design of new facilities shall, to the extent feasible, minimize the amount of impermeable
surface and incorporate methods to lessen surface runoff from the site.
Timing of Implementation - (a) Prior to project approval, prior to project construction; (b) Prior
to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency, Regional Water Quality Control Board.
Revised Mitigation Measure 7 -3
(a) Employ Best Management Practices as required under the NPDES Permit for Construction
grading.
(b) To the extent feasible, confine grading, ,excavation, and other earthwork to the dry seasons.
When this is not feasible, erosion and sediment transport control facilities should be in place prior
to the onset of the first major winter storms. If wind erosion has the potential to occur during
summer months, erosion control methods, such as watering graded areas, shall be implemented.
(c) Prepare and implement detailed erosion and sedimentation control plan(s), which should be
submitted for review and approval by the RWQCB. The specific language of such plans varies,
but the concepts to be adhered to include the following:
To avoid discharge to natural waterways, sediment should be trapped before leaving
the construction site through the use of rip -rap, hay bales, fencing, or sediment ponds,
Areas of surface disturbance should be minimized,
Disturbed areas should be stabilized through vegetative or mechanical
methods. When construction is complete, all disturbed areas should be
regraded and revegetated. Topsoil should be stockpiled and used for
the revegetation of disturbed areas.
(d) All new facilities shall be designed and constructed to conform with the site development
standards contained in the latest edition of the Uniform Building Code (UBC). Prior to
construction activities, the applicant shall submit building plans to the local jurisdiction's building
department indicating compliance with the UBC.
(e) All new facilities shall meet the requirements of the County or cities' standards pertaining to
site design, grading, and erosion control.
(f) Vegetation on soils exposed during construction shall be reestablished as soon as practical.
Mulch or other temporary cover shall be used in the interim where erosion potential exists.
(g) Treat wastewater generated during construction prior to discharge. At a minimum, the
wastewater should be treated by sedimentation to remove suspended particles from the water,
Sedimentation ponds waanld need to be maintained rcgt.tlarly. precipitation agents, such as alum,
may be introduced to speed the action of settling suspended particles. Alternatively, dither gravity
or pressure filtration conid be: nsed i f sufficient space for sedimentation Facilities is unavailable.
(h) Prepare and implement a Spill Prevention (.'ontrol /Countermeasure (SPCC) Plan prior to the
start of construction. The SPCC Plan should cover actions needed to minimize the potential for
accidental spillage of construction - related contaminants such as fuel, oil, or other chemicals. Such
contaminants should not be drained onto the soil; rather, they should be confined to sealed
containers and removed to proper disposal sites. Refueling should be conducted in a location where
spills could be contained.
Timing of Implementation - (a), (b), (f), (g), (h) Prior to project construction, during project
construction; (c), (d), (e) Prior to project construction.
Implementation - Lead Agency.
Monitoring -Lead Agency, Regional Water Quality Control Board.
Mitigation Measure 7 -4
(a) Same as Mitigation Measures 7 -1(a), 7 -1(b) and 7 -1(c).
(b) Construct a separate spill control facility around and under the waste intake, storage, and
loading areas to provide for containment of any hazardous spills that might occur in the vicinity.
Timing of Implementation - (a) Same as 7 -1(a), (b), & (c); (b) Prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency, Regional Water Quality Control Board.
Revised Mitigation Measure 7 -5
(a) ("'over niaterials (soil) shall be placed over waste materials at the end of each day to prevent
wafer froin ponding on the landfill.
(b) A low- permeability final landfill cover, as required by CCR, Title 23, Chapter 15, shall be
placed over the landfill during closure.
(c) The volume of fluid that enters the landfill shall be minimized by prohibiting the disposal of
liquid waste.
(d) The landfill shall be designed with an adequate drainage and collection system to prevent to the
extent possible the migration of leachate off -site.
(e) Landfills shall be located where site characteristics provide adequate separation between solid
waste and ground and surface waters and where soil characteristics, distance from waste to
groundwater, and other factors will ensure no impairment of beneficial uses of surface or ground
water beneath or adjacent to a landfill (California Water Regulations, Chapter 15, Article 3, Section
2533).
(f) Current industry standards for leachate management shall be iniplemented (e g , storing, leachate
in lined on -site ponds where it can evaporate naturally) or, if storage is irnpossible, trarisporting
leachate to the nearest wastewater treatment plant capable of treating the leachate and slot exceeding
effluent discharge limits.
Timing of Implementation - (a), (b), (c) Prior to project construction and ongoing (d) Prior to
project construction; (e), (f) Prior to project approval, prior to project construction
Implementation - Lead Agency.
Monitoring - Lead Agency, Local Enforcement Agency, Regional Water Quality Control Board.
Additions to r' iligation 4leasures 7-
(g) Uacli ate and wastewater collection and disposal systems shall be designed with enough
capacity to accoinmodat:a the aanoaant of leachate predicted to be generated during the wettest year
of record.
(h) Construction of all new landfill cells will comply with the requirements of Title 27 for liner
impermeability.
(i) A landfill leachate and wastewater management program will be implemented which will
include monitoring leachate and wastewater levels and emptying ponds as necessary to ensure
adequate storage capacity.
0) Investigate and consider methods for treatment of leachate and wastewater on -site and disposal
by irrigation at any expanded or new landfill site.
(k) All exterior drainage from each landfill site shall be managed in accordance with the
requirements of federal NPDES, state, and local regulations.
Timing of Implementation - (g), (h) Prior to project construction; (i) Ongoing; 0), (k) Prior to
project construction and ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency, Local Enforcement Agency, Regional Water Quality Control Board.
Mitigation Measure 7 -6
(a) To the extent feasible, the working face of the landfill shall be covered with soil or other
approved alternate cover material to prevent contact with stormwaters.
(b) All exterior drainage from each site shall be managed in accordance with the requirements of
federal NPDES, state, and local regulations.
Timing of Implementation - (a) Prior to project construction and ongoing; (b) Prior to project
construction, and ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency, Local Enforcement Agency.
Revised Mitigation Measure 7 -7
(a) Employ Best Management Practices as required under the NPDES Permit for Construction
grading.
(b) To the extent feasible, confine grading, excavation, and other ear diwoa k to the dry seasons.
When this is not feasible, erosion and sediment transport contrail facilities should be in place prior
to the onset of the first major winter storms. If wind erosion leas the potential to occaar during
summer months, erosion control methods, such as watering graded areas, shall be implemented.
(c) Prepare and implement detailed erosion and sedimentation control plan(s), which should be
submitted for review and approval by the RWQCB. The specific language of such plans varies, but
the concepts to be adhered to include the following:
1. To avoid discharge to natural waterways, sediment should be trapped before leaving the
construction site through the use of rip -rap, hay bales, fencing, or sediment ponds.
2. Areas of surface disturbance should be minimized.
3. Disturbed areas should be stabilized through vegetative or mechanical methods. When
construction is complete, all disturbed areas should be regraded and revegetated.
(d) All new facilities shall be designed and constructed to conform with the site development
standards contained in the latest edition of the Uniform Building Code (UBC). Prior to
construction activities, the applicant shall submit building plans to the local jurisdiction's building
department indicating compliance with the UBC.
(e) All new facilities shall meet the requirements of the County or cities' standards pertaining to
site design, grading, and erosion control.
(f) Vegetation on soils exposed during construction shall be reestablished as soon as practical.
Mulch or other temporary cover shall be used in the interim where erosion potential exists.
(g) Treat wastewater generated during construction prior to discharge. At a minimum, the
wastewater should be treated by sedimentation to remove suspended particles from the water.
Sedimentation ponds would need to be maintained regularly.
(h) Prepare and implement a Spill Prevention Control /Countermeasure (SPCC) Plan prior to the
start of construction. The SPCC Plan should cover actions needed to minimize the potential for
accidental spillage of construction - related contaminants such as fuel, oil, or other chemicals. Such
contaminants should not be drained onto the soil; rather, they should be confined to sealed
containers and removed to proper disposal sites. Refueling should be conducted in a location where
spills could be contained.
Timing of Implementation - (a), (b), (d), (e) Prior to project construction; (c) Prior to project
construction; (f) During project construction; (g) During project construction and ongoing; (h) Prior
to project construction and ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency, Regional Water Quality Control Board.
Revised Mitigation Measure 7 -8
(a) Mitigation implemented to control erosion during operation of the landfill shall be similar to
that implemented during construction (see Mitigation Measure 7 -7 above).
(b) Permanent drainage ditches shall be constructed around the landfill perimeter to convey runoff
water from the project site. These permanent drainage ditches shall be lined with native grass,
concrete, corrugated metal, or other material that will limit water infiltration and soil erosion.
Temporary and permanent berms, collection ditches, benches, and stormwater downdrains shall be
constructed to convey water runoff from the landfill surface and downslopes.
(c) On- or off -site detention ponds shall be constructed and maintained and site runoff shall be
collected and sedimentation completed in the ponds prior to discharge to surface waters. The ponds
shall be adequately designed so that no net increase over existing conditions in stormwater flows
from the project site are expected to result from a 100 -year flood event.
(d) Prior to the rainy season, drainage facilities shall be inspected and, if necessary, cleared of
debris.
(e) Drainage facilities shall be inspected after the first significant rain of the season to ensure that
the system is functioning.
(f) Runoff from areas upgradient of the landfill shall be routed around the landfill.
(g) Landfills shall not be developed within a 100 -year floodplain (40 CFR 258).
Timing of Implementation - (a), (b), (d) Prior to project construction and ongoing; (b) Prior to
project construction and ongoing; (c), (g) Prior to project approval, prior to project construction; (e)
ongoing; (f) Prior to project construction.
Implementation - Lead Agency.
Monitoring -Lead Agency, Regional Water Quality Control Board.
Mitigation Measure
(a) New waste management facilities will use water conservation techniques such as reclaimed
water use and water recycling where feasible.
(b) If anaerobic digcstio i is used to process organics, a complete site specific groundwater study or
groundwater availability dctermi¢iation to demonstrate that water use levels will not deplete
groundwater supplies fi)r ssnToMiding properties.
Timing of Implementation - (a) Prior to project construction and ongoing; (b) Prior to project
approval.
Implementation - Lead Agency.
Monitoring -Lead Agency.
Mitigation Measure 7 -10
Spill prevention and cleanup plans will be required in all construction contracts. Any contracts
which involve blasting will require that explosives spilled during the loading of the blasting holes
be cleaned up prior to detonating the explosives.
Timing of Implementation - Prior to project construction, during project construction.
Implementation - Lead Agency.
Monitoring -Lead Agency.
Mitigation Measure 7 -11
If blasting will be done near an existing landfill, a qualified blasting specialist will design the
blasting program to ensure that peak particle velocities resulting from blasts will be lower than the
amount that could damage the landfill liner or leachate collection system.
Timing of Implementation - Prior to project construction, during project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency, Regional Water Quality Control Board.
Mitigation Measure 7 -12
When feasible, large non - disposal facilities (i.e., composting facilities) shall provide permeable
surfaces and retention basins to aid in the recharge of groundwater in accordance with the water
quality standards of the Regional Water Quality Control Board.
• Timing of Implementation - Prior to project construction.
• Implementation - Lead Agency.
• Monitoring - Lead Agency, Regional Water Quality Control Board.
PUBLIC SAFETY, HAZARDS AND HAZARDOUS MATERIALS
Revised Mitigation Measure 8 -1
(a) Curbside recycling operations shall be established so that no direct worker contact with the
materials occurs. Automated can pick -up, commingled collection, and /or separate materials bins
could meet this objective.
(b) Workers shall be supplied with appropriate safety gear which provide the maximum protection
available while still affording sufficient manual dexterity for accomplishing their sorting tasks.
(c) All workers shall have current vaccinations against diseases such as tetanus, polio, or other
diseases which could be spread through direct contact with solid waste.
(d) Workers shall be trained to spot hypodermic needles during sorting, extract them from the
sorting line, and deposit them in a plastic sharps disposal container kept at each sorting station.
(e) Sharps containers filled at the non - disposal facility and landfill, as well as containers
encountered in curbside materials during sorting operations, shall be properly disposed of with a
licensed medical waste hauler.
(f) New and expanded non - disposal facilities and solid waste disposal facilities shall develop and
implement an Illness and Injury Prevention Plan to address the potential for injury and illness
among facility employees.
(g) A map showing the locations of local emergency services and appropriate telephone numbers
shall be posted at all non - disposal facilities and landfills in a conspicuous place (e.g., near the
telephone) by either the program operations manager or the safety inspector.
Timing of Implementation - Prior to project construction and ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 8 -2
(a) Backyard composting training for the general public shall address the potential health effects
associated with composting. Training will describe how proper moisture content will reduce dust
generation and maximize microbial action and how sufficient oxygen content is critical to
maintaining microbial action, regulating temperature, and reducing odors and pathogens. Persons
with weakened immune systems or persons with allergies, asthma, or other respiratory problems
shall be discouraged from participating in backyard composting. Backyard composters shall also
be encouraged to thoroughly wash their hands with soap and water after each contact with backyard
compost piles.
(b) Composting operations at the new or expanded composting facility(ies) shall include the
following procedures:
1. Proper moisture content shall be maintained in compost piles or windrows.
2. Proper temperatures and oxygen content shall be maintained in compost piles /windrows through
aeration and compost turning or agitation. Operating procedures shall require that the compost pile
be heated to approximately 132 -140E to ensure that all pathogens have been eliminated.
3. Loading and compost turning equipment shall have enclosed, ventilated cabs and the ventilation
systems shall be maintained regularly, or individual respiratory protection (dust masks) will be
utilized.
4. Employees shall be encouraged to wash their hands frequently with soap and water, particularly
prior to lunch and other breaks, and at the end of the work day.
5. Composting facility operators shall inform compost workers about the possibility for
development of pulmonary hypersensitivity. Workers shall be encouraged to report unusual health
problems to their supervisors and physicians.
6. New and expanded non - disposal facilities shall develop and implement an Illness and Injury
Prevention Plan to address the potential for injury and illness among facility employees.
• Timing of Implementation - (a), (b) Prior to project construction and ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Revised Mitigation Measure 8 -3
(a) A HHW Facility Operations Plan shall be developed for each permanent HHW facility. This
plan shall include procedures for waste acceptance and screening, waste management practices,
stormwater management, worker health and safety, and emergency prevention, precaution and
response.
(b) An emergency response and evacuation plan shall be developed for each collection site in order
to plan actions to be taken in the event of a spill incident. The emergency response and evacuation
plan shall be developed by the collection site operator in coordination with the appropriate local
agencies prior to the operation of the collection site.
(c) A safety inspector shall be assigned by the HHW program operations manager to oversee field
activities, spot potential risks, and ensure conformance with regulations.
(d) Employee safety meetings shall be conducted, as necessary, by the program safety inspector.
(e) All vehicles shall be inspected, as necessary, for safety violations by the program safety
inspector and facility employees.
(f) An on -site eye wash and shower station shall be provided at all mobile and stationary HHW
collection sites.
(g) A map showing the locations of local emergency services and appropriate telephone numbers
shall be posted at all mobile and stationary HHW collection sites in a conspicuous place (e.g., near
the telephone) by either the program operations manager or the safety inspector.
(h) A training program (including periodic retraining) for facility personnel in CPR and first aid
shall be provided by the program safety inspector. In addition, first aid materials shall be
maintained in good condition.
(i) A drainage containment and collection system shall be set up around the HHW collection and
storage facilities to prevent discharge of spilled materials to soil or groundwater. All spilled
material shall be collected and treated separately to prevent the spread of any hazardous constituents.
0) Any risk posed by unauthorized access to any non - disposal site shall be mitigated by posting
warning signs, fencing, patrol personnel, or the disabling of equipment when not in use. Daily
inspections would be the responsibility of the facility operations manager.
(k) A Load Checking Program shall be updated and implemented to ensure the proper disposal of
hazardous wastes illegally disposed with solid waste accepted at non - disposal facilities and the
landfill. Any hazardous wastes found while conducting the Load Checking Program shall be
disposed of according to applicable state and federal regulations.
Timing of Implementation - (a) through (k) Prior to project construction and ongoing.
Implementation - Lead Agency.
Monitoring -Lead Agency.
Revised Mitigation Measure 8 -4
(a) Prior to permitting, develop and implement (in consultation with the Fire Marshal) a Fire
Prevention Program for each facility, as necessary. This program shall entail both structural fire
suppression mechanisms, such as an automatic sprinkler system and fire retardant building materials
in the design of the structure, as well as procedural programs for minimizing/extinguishing fire
hazards.
(b) Develop an Emergency Response and Evacuation Plan for each new or expanded facility in
accordance with relevant county or city emergency response and evacuation plans, and follow it in
the event of a fire, earthquake, hazardous materials spill or other emergency. Each emergency
response and evacuation plan shall be developed by the facility operator in coordination with the
County Office of Emergency Services, the Hazardous Materials Division of the County
Environmental Health Department, and the appropriate Fire Protection District.
(c) All potentially disastrous events shall be reported by the project sponsor to the County Office of
Emergency Services so that County emergency services such as traffic control, fire and medical
equipment, and evacuation notification can be available as needed.
(d) Facility workers shall be provided and required to use safety glasses, safety shoes, coveralls,
gloves, noise reducers for ears, or other safety equipment appropriate to the hazard of the job. An
emergency eye bath and emergency showers shall be installed in the facility by the project sponsor.
(e) A map showing the locations of local emergency services and appropriate telephone numbers
shall be posted at all non - disposal facilities and landfills in a conspicuous place (e.g., near the
telephone) by either the program operations manager or the safety inspector.
(f) New and expanded non - disposal facilities and solid waste disposal facilities shall develop and
implement an Illness and Injury Prevention Plan to address the potential for injury and illness among
facility employees.
* Timing of Implementation - (a) through (f) Prior to project construction and ongoing.
* Implementation - Lead Agency.
• Monitoring -Lead Agency.
Revised Mitigation Measure 8 -5
Same as Mitigation Measure 8 -4 (a through e).
(f) Consider reducing operating hours at new or expanded non - disposal facilities in order to reduce
the accumulation of combustible solid waste for transfer and storage.
(g) A map showing the locations of local emergency services and appropriate telephone numbers
shall be posted at all non - disposal facilities and landfills in a conspicuous place (e.g., near the
telephone) by either the program operations manager or the safety inspector.
(h) Develop an Emergency Response and Evacuation Plan for each new or expanded facility in
accordance with relevant county or city emergency response and evacuation plans, and follow it in
the event of a fire, earthquake, hazardous materials spill or other emergency. Each emergency
response and evacuation plan shall be developed by the facility operator in coordination with the
County Office of Emergency Services, the Hazardous Materials Division of the County
Environmental Health Department, and the appropriate Fire Protection District.
Timing of Implementation -(a) through (h) Prior to project construction and ongoing.
Implementation - Lead Agency.
Monitoring -Lead Agency.
Mitigation Measures 8 -6
(a) Rodent traps shall be placed strategically around the public drop -off areas and recycling areas,
as required. This measure shall be monitored by the facility operations manager.
(b) Landscape materials shall exclude plants, such as ivy, which may provide hidden nesting areas
for rodents.
(c) Standing water and moist areas shall be controlled to prevent mosquito breeding. This shall be
monitored by the facility operations manager.
• Timing of Implementation - (a) through (c) Prior to project construction and ongoing.
• Implementation - Lead Agency.
• Monitoring -Lead Agency, Local Enforcement Agency.
Revised Mitigation Measure 8 -7
Mitigation measures will result from the site specific CEQA review process, and will include the
general following mitigation measures:
(a) Employees shall be encouraged to wash their hands frequently with soap and water, particularly
prior to lunch and other breaks, and at the end of the work day.
(b) Employee safety meetings shall be conducted, as necessary, by the program safety inspector.
(c) All vehicles shall be inspected, as necessary, for safety violations by the program safety
inspector and facility employees.
(d) A training program (including periodic retraining) for facility personnel in first aid shall be
provided by the program safety inspector. In addition, first aid materials shall be maintained in good
condition.
(e) Any risk posed by unauthorized access to any areas of the disposal site shall be mitigated by
posting warning signs, fencing, patrol personnel, and /or the disabling of equipment when not in use.
Daily inspections would be the responsibility of the facility operations manager.
(f) Prior to operations, develop and implement (in consultation with the Fire Marshal) a Fire
Prevention Program for each facility, as necessary. This program shall entail both structural fire
suppression mechanisms, such as an automatic sprinkler system and fire retardant building
materials, in the design of the structure, as well as procedural programs for
minimizing /extinguishing fire hazards.
(g) All potentially disastrous events shall be reported by the project sponsor to the County Office of
Emergency Services so that County emergency services such as traffic control, fire and medical
equipment, and evacuation notification can be available as needed.
(h) Facility workers shall be provided and required to use safety glasses, safety shoes, coveralls,
gloves, noise reducers for ears, or other safety equipment appropriate to the hazard of the job. An
emergency eye bath and emergency showers shall be installed in the facility by the project sponsor.
(i) Standing water and moist areas shall be controlled to prevent mosquito breeding. This shall be
monitored by the facility operations manager.
0) A map showing the locations of local emergency services and appropriate telephone numbers
shall be posted at all non - disposal facilities and landfills in a conspicuous place (e.g., near the
telephone) by either the program operations manager or the safety inspector.
(k) Develop an Emergency Response and Evacuation Plan for each new or expanded facility in
accordance with relevant county or city emergency response and evacuation plans, and follow it in
the event of a fire, earthquake, hazardous materials spill or other emergency. Each emergency
response and evacuation plan shall be developed by the facility operator in coordination with the
County Office of Emergency Services, the Hazardous Materials Division of the County
Environmental Health Department, and the appropriate Fire Protection District.
(1) New and expanded non - disposal facilities and solid waste disposal facilities shall develop and
implement an Illness and Injury Prevention Plan to address the potential for injury and illness among
facility employees.
• Timing of Implementation - (a) through (1) Prior to project construction and ongoing; (k) Prior to
project construction.
• Implementation - Lead Agency.
Monitoring -Lead Agency, Local Enforcement Agency.
Mitigation Measure 8 -8
If hazardous materials are used at the RMF, the following mitigations will be implemented:
(a) An emergency response and evacuation plan shall be developed for the RMF in order to plan
actions to be taken in the event of a spill incident. The emergency response plan shall be developed
by the facility operator in coordination with the appropriate local agencies prior to the operation of
the facility.
(b) A safety inspector shall be assigned by the RMF operations manager to oversee the
transportation, use and disposal of hazardous materials to ensure that workers, the general public,
and the environment are protected from accidents or spills.
(c) Employee safety meetings shall be conducted as necessary by the program safety inspector.
(d) An on -site eye wash and shower station shall be provided at the RMF.
(e) A map showing the locations of local emergency services and appropriate telephone numbers
shall be posted at the RMF in a conspicuous place (e.g., near the telephone) by either the program
operations manager or the safety inspector.
(f) A training program (including periodic retraining) for facility personnel in CPR and first aid
shall be provided by the program safety inspector. In addition, first aid materials shall be
maintained in good condition.
(g) A drainage containment and collection system shall be set up around the chemical use area at
the RMF to prevent discharge of spilled materials to soil or groundwater. All spilled material shall
be collected and treated separately to prevent the spread of any hazardous constituents.
(h) Any risk posed by unauthorized access to the RMF shall be mitigated by posting warning signs,
fencing, patrol personnel, or the disabling of equipment when not in use. Daily inspections would
be the responsibility of the facility operations manager.
(i) New and expanded non - disposal facilities shall develop and implement an Illness and Injury
Prevention Plan to address the potential for injury and illness among facility employees.
• Timing of Implementation - (a)through 0) Prior to project construction, ongoing. Prior to project
Implementation - Lead Agency.
• Monitoring - Lead Agency, Regional Water Quality Control Board.
Mitigation Measure 8 -9
(a) Blasting at the Central Disposal Site shall be conducted in accordance with the
recommendations of the study conducted by Geotek in 1998, and any further site - specific blasting
study conducted by a licensed blasting engineer. At a minimum, mitigation shall include:
1. All blasts will be designed to minimize peak particle velocity at the nearest off -site
structures.
2, Measures will be taken to control air blast (overpressure), including stemming explosive
charges with clean crushed stone, ensuring the minimum distance between bore holes and
the rock face, keeping drilling logs to describe ground conditions, adjusting blast design to
isolate explosive charges from weak areas, avoiding blasting during heavy cloud cover or
windy conditions and monitoring overpressure at or near nearby residences.
(b) If blasting is necessary at a new solid waste disposal site, a site - specific blasting study to
establish procedures to minimize peak particle velocities and overpressure will be conducted.
Timing of Implementation - (a) Prior to project construction, during project construction; (b) Prior
to Project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Mitigation Measure 8 -10
In the event that a facility is located on a designated contaminated site, a site - specific study will be
done to ensure that proper handling and disposal methods will be used to minimize environmental
impacts. The study shall include a search of records of hazardous materials presence, a field
assessment of conditions on the site to determine whether visual evidence of hazardous materials is
present, and a plan to treat and /or clean up the site in accordance with regulations of the Regional
Water Quality Control Board and Sonoma County Environmental Health if hazardous materials are
present. Site specific analysis would be done at the time facility locations are proposed.
Timing of Implementation - Prior to project approval, prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency, Local Enforcement Agency, Regional Water Quality Control Board.
Mitigation Measure 8 -11
Update the existing or develop a new Emergency Response and Evacuation Plan for each new or
expanded facility in accordance with relevant county or city emergency response and evacuation
plans, and follow it in the event of a fire, earthquake, hazardous materials spill or other emergency.
Each emergency response and evacuation plan shall be developed by the facility operator in
coordination with the County Office of Emergency Services, the Hazardous Materials Division of
the County Environmental Health Department, and the appropriate Fire Protection District.
Timing of Implementation - Prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Mitigation Measure 8 -12
(a) Safety measures shall be implemented, including, at a minimum, emergency response
procedures, safety inspections, safety training, restriction of unauthorized access to areas where
hazardous materials are stored, and timely containment and cleanup of spills.
(b) All potentially disastrous events shall be reported by the project sponsor to the County Office of
Emergency Services so that County emergency services such as traffic control, fire and medical
equipment, and evacuation notification can be available as needed.
Timing of Implementation - (a), (b) Prior to project construction, and ongoing,.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Mitigation Measure 8 -13
(a) Future non - disposal and disposal facilities located in Sonoma County shall be designed,
constructed, and maintained in conformance with the requirements of the Fire Marshall's Vegetation
Management Plan and Fire Safe Standards.
(b) Develop an Emergency Response and Evacuation Plan for each new or expanded facility in
accordance with relevant county or city emergency response and evacuation plans, and follow it in
the event of a fire, earthquake, hazardous materials spill or other emergency. Each emergency
response and evacuation plan shall be developed by the facility operator in coordination with the
County Office of Emergency Services, the Hazardous Materials Division of the County
Environmental Health Department, and the appropriate Fire Protection District.
(c) All potentially disastrous events shall be reported by the project sponsor to the County Office of
Emergency Services so that County emergency services such as traffic control, fire and medical
equipment, and evacuation notification can be available as needed.
Timing of Implementation - (a) Prior to project approval, ongoing; (b) Prior to project
construction, ongoing; (c) Ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency.
TRANSPORTATION
Revised Mitigation Measure 9 -1
(a) To the extent feasible, new non - disposal facilities shall not be located in areas with significant
road congestion, as designated in the cities' and County General Plans;
(b) To the extent feasible, new non - disposal facilities shall be located near other commercial
facilities to allow for the combination of activities in one trip and reduce overall trip generation.
(c) Traffic Management Plans (TMP) shall be developed for each of the new and expanded non -
disposal facilities, as required. These plans shall schedule truck trips so that roadway segments with
the potential to be significantly impacted are avoided during peak hours. In addition, these plans
shall detail the hours of operation and other restrictions on truck trips for each of the facilities and
shall include plans for employee car pooling and bus transportation, where appropriate and feasible.
The plans shall be updated periodically in response to changing traffic conditions and improvements
to the highway system. The TMP shall include a site - specific traffic evaluation conducted as part of
the siting study for a new non - disposal facility to identify potential traffic problem areas prior to site
selection. The traffic evaluation shall consider limiting non - disposal facility operations to either
commercial or private (general public) haulers, as well as co- locating of disposal and non - disposal
facilities to reduce haul trips.
Timing of Implementation - (a), (b), (c) Prior to project approval.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Additions to Mitigation Measures 9 -1
(d) Countywide Traffic Mitigation Fees shall be paid for new facilities implemented in accordance
with the 2003 CoIWMP to help mitigate off -site cumulative traffic impacts.
Timing of Implementation - (d) Prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 9 -2
(a) The siting study for a new landfill shall consider the adequacy and operation of the local roads
and intersections as part of the comparative criteria.
Timing of Implementation - (a) Prior to project approval.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Additional Mitigation Measure 9 -2
(b) A site - specific traffic evaluation shall be conducted as part of the siting study for a new landfill,
to identify potential traffic problem areas prior to site selection and to identify road or intersection
improvements and /or changes needed to accommodate landfill traffic.
(c) Countywide Traffic Mitigation Fees shall be paid for new facilities implemented in accordance
with the 2003 CoIWMP to help mitigate off -site cumulative traffic impacts.
Timing of Implementation - (b) Prior to project approval; (c) Prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Mitigation Measure 9 -3
Traffic analysis shall be conducted at the time a site - specific environmental analysis of a quarry
project is undertaken. If rock extraction traffic would cause significant congestion at the Stony
Point/Roblar or Stony Point/West Railroad intersections, the following mitigation measures shall be
considered:
(a) Trucks hauling rock from the landfill quarry shall be restricted so that they do not add traffic to
the congested intersections during peak traffic hours. Restrictions could include alternative hours of
operation or alternative haul routes. This restriction shall remain in effect until these intersections are
signalized.
(b) The quarry operator shall pay a traffic mitigation fee to provide a fair -share contribution toward
the cost of signalizing the intersections.
• Timing of Implementation - (a) Prior to project approval; (b) Prior to project construction.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Mitigation Measure 9 -4
If significant traffic impacts to the Stony Point/Roblar Roads and Stony Point Road /West Railroad
Avenue intersections continue beyond 2015, mitigation measures such as the following shall be
implemented:
(a) The Integrated Waste Division will consider restricting truck traffic that is subject to County
control so that trucks do not travel through the Stony Point/Roblar and /or Stony Point Road /West
Railroad intersections during peak traffic hours. This shall apply only to new truck trips associated
with projects pursuant to the 2003 CoIWMP and not existing traffic using the Central Disposal Site.
The restriction shall apply to trucks subject to County control, such as those making deliveries of
cover soil and liner materials, and trucks associated with construction at the site. This measure shall
remain in effect until a traffic signal has been installed at these intersections.
(b) Prior to construction of projects at the Central Disposal Site pursuant to the 2003 CoIWMP, the
Integrated Waste Division shall pay a traffic mitigation fee that includes a fair share contribution
toward the installation of signals at the Stony Point/Roblar and Stony Point/West Railroad
intersections.
(c) Consider restricting hours of operation so that traffic is not added to the congested intersections
during peak traffic hours. This restriction would remain in effect until these intersections are
signalized.
(d) Consider restricting the use of the site to commercial operators only, thereby reducing the
number of vehicles using the Stony Point/Roblar and Stony Point/West Railroad intersections.
• Timing of Implementation - (a), (c), (d) Prior to project approval; (b) Prior to project construction.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Mitigation Measure 9 -5
Prior to the commencement of hauling, the quarry operator and the Integrated Waste Division shall
implement a truck driver education program which familiarizes rock and commercial refuse haulers
with speed limit zones, school bus stops, areas of low sight distance on the haul route, permit limits
on trucking, weight and load height limits, circulation routes through the landfill to minimize
interference, and other measures which will reduce public conflicts. The Integrated Waste Division
shall maintain a record of the drivers receiving the orientation.
• Timing of Implementation - Prior to project construction, during project construction, ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Mitigation Measure 9 -6
(a) Driveways and access roads for the new landfill and non - disposal facilities shall be designed to
AASHTO standards to ensure safety hazards are minimized. These standards include driveway
width, acceleration - deceleration lanes, and turning radius requirements.
(b) Prior to operation, minor roads that would be used as haul routes shall be examined for existing
safety problems and corrections shall be made as necessary to accommodate traffic from new
facilities.
(c) Design access roads for new facilities to accommodate emergency vehicles in accordance with
County Fire Safe Standards.
• Timing of Implementation - (a), (c) Prior to project construction; (b) Ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
AIR QUALITY
Revised Mitigation Measure 10 -1 (a)
The County and cities shall consider air emissions when purchasing new equipment and when
entering into agreements with solid waste operators. Cleaner vehicles shall be weighted more
favorably than less clean vehicles.
• Timing of Implementation - (a) Prior to project constructtion and ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Additional Mitigation Measure 10 -1(b) (Construction)
1. New facilities shall be sited to maximize separation between haul routes /facilities and sensitive
receptors to the extent practical.
2. New facilities shall encourage the use of low emissions vehicles that control diesel particulates
with engine filters or by using low emissions fuel such as compressed natural gas.
3. The contractor shall reduce NO,,, ROG, and CO emissions by complying with the construction
vehicle air pollutant control strategies developed by the BAAQMD and the NSCAPCD. The project
sponsor shall include in construction contracts the following requirements:
a. Construction equipment operators shall shut off equipment when not in use to avoid
unnecessary idling. As a general rule, vehicle idling should be kept below 10 minutes.
b. The contractor's construction equipment shall be properly maintained and in good operating
condition.
c. The contractor shall utilize new technologies to control ozone precursor emissions as they
become available and feasible.
d. The contractor shall substitute gasoline - powered for diesel - powered equipment where
feasible. The contractor shall electrify equipment where practical.
4. Asphalt paving materials shall conform to the most recent guidelines by the air district having
jurisdiction.
Timing of Implementation - (bl) Prior to project approval; (b2) Ongoing; (b3), (b4) Prior to
project construction, during project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Additional Mitigation Measure 10 -1 (c) (Operations)
1. Contracts for operation of facilities described in the 2003 CoIWMP shall require operators to
limit idling time of diesel equipment to 10 minutes when practical. Contracts shall also require that
equipment be serviced at regular intervals to keep engines operating within parameters that will
prevent excessive emissions.
2. Contracts for operation of facilities described in the 2003 CoIWMP shall include incentives for
using electric motors instead of internal combustion engines in stationary equipment.
3. Alternate technology, such as a fuel cell or cleaner burning engines, shall be considered for any
electricity generation plant implemented by programs in the 2003 CoIWMP.
Timing of Implementation - (c I) through (0) Ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Additional Mitigation Measure 10 -1 (d)
If emissions of criteria pollutants are produced by the selected technology for processing of organic
waste at the RMF, the facility will be equipped with a means to collect or treat emissions which may
include air control and emission filters to comply with air quality standards.
Timing of Implementation - (d) Prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency, Air Quality Management District/Air Pollution Control District.
Revised Mitigation Measure 10 -2
The contractor shall reduce particulate emissions by complying with the dust control strategies
developed by the NSCAPCD and the BAAQMD. The project sponsor shall include in construction
contracts the following requirements:
1. The contractor shall water in late morning and at the end of the day all earth surfaces
during clearing, grading, earthmoving, and other site preparation activities.
2. The contractor shall use tarpaulins or other effective covers for haul trucks that travel on
public streets and roads.
3. The contractor shall increase the watering frequency for exposed and erodible soil
surfaces whenever winds exceed 15 mph.
4. The contractor shall water exposed soil surfaces, including cover stockpiles, roadways,
and parking and staging areas, to minimize dust and soil erosion.
5. The contractor shall sweep streets adjacent to the new and expanded non - disposal
facilities at the end of each day.
6. The contractor shall control construction, operation and maintenance vehicle speed to 15
mph on unpaved roads.
Timing of Implementation - Ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 10 -3
(a) Control of odors shall be implemented through the use of Best Management Practices utilized
with Sonoma County such as the avoidance of compost disturbance in afternoon hours, regulating
moisture content, and turning compost windrows.
(b) If odor persists as a problem, compost piles or windrows shall be covered with soil or finished
compost to reduce emissions of odors.
Timing of Implementation - (a), (b) Ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency, Local Enforcement Agency.
Additions to Mitigation Measure 10 -3
(c) The landfill shall be covered at the end of every day with plastic, soil or other appropriate
material.
(d) Any cracks in the landfill surface shall be repaired as soon as practical.
(e) Acidity levels in leachate ponds shall be monitored and pH adjusted as necessary to reduce odor
problems.
(f) When new compost facilities are proposed, consideration will be given to operations that are
conducted inside buildings using air filtration systems to prevent release of odors.
Timing of Implementation - Ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency, Local Enforcement Agency, Regional Water Quality Control Board.
Revised Mitigation Measure 10 -4 (a)
Mitigation measures will include revised Mitigation Measure 10 -1 (a), additional Mitigation
Measures 10 -1 (b) and 10 -1 (c), including revised Mitigation Measure 10 -2 described above.
Timing of Implementation - Same as Mitigation Measures 10 -1(a), (b) and (c); 10 -2.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 10 -4 (b)
1. To prevent excessive emissions of ROG, future landfill gas collection systems shall be designed to
minimize the amount of uncontrolled gas emissions. To ensure that the latest information and
technology is considered in the design, the project sponsor will have a qualified consultant prepare
recommendations that would include the appropriate collection technology. These recommendations
shall be submitted to the Bay Area Air Quality Management District for approval prior to the
issuance of an Authority To Construct.
2. Mitigation measures shall include revised Mitigation Measure 10 -1 (a) and additional Mitigation
Measures 10 -1 (b) and 10 -1 (c).
Timing of Implementation - (b1) Prior to project construction; (b2) Same as 10 -1(a), (b), and (c).
Implementation - Lead Agency.
Monitoring - Lead Agency, Air Quality Management District/Air Pollution Control District.
Mitigation Measure 10 -5
(a) Blasting operations for landfill construction shall be restricted as follows to control dust
emissions:
1. To the extent possible, remove all loose dirt and overburden material from blasting areas
prior to drilling blast holes.
2. Spray water over blast areas prior to blasting.
3. No loading of explosives in blast holes or blasts shall be conducted when wind speed on
site exceeds 15 mph.
(b) Any rock crusher used for landfill construction shall be equipped with a spray mister, or
incorporate some other equally effective measure to control dust.
(c) Revised Mitigation Measure 10 -2 shall be implemented for the rock extraction operations.
Timing of Implementation - (a) Prior to project construction, during project construction; (b)
During project construction; (c) Same as Revised Mitigation Measure 10 -2.
Implementation - Lead Agency.
Monitoring - Lead Agency, Air Quality Management District/Air Pollution Control District.
Mitigation Measure 10 -6
(a) To prevent excessive NOX emissions: 1) Blasting for landfill construction shall be done with
water resistant explosives in the wet areas of bore holes. Non -water resistant explosives may be
used above the wet areas of bore holes, provided the bore hole is sealed above the wet area so that
the non -water resistant explosive remains above the wet area. 2) Blended ammonium nitrate /fuel
oil blasting agents shall contain at least 5.7% fuel oil by weight.
(b) Revised Mitigation Measure 10 -1 (a) and Additional Mitigation Measures 10 -1 (b) and 10 -1 (c)
shall also be applied to rock extraction associated with new or expanded landfills.
Timing of Implementation - (a) Prior to project construction, during project construction; (b) Same
as Revised Mitigation Measure 10 -1(a); additional Mitigation Measures (b), (c).
Implementation - Lead Agency.
Monitoring - Lead Agency, Air Quality Management District/ Air Pollution Control District.
NOISE
Revised Mitigation Measure 11 -1
(a) Construction activities shall be limited to the hours between 7 AM and 7 PM to the extent
practical.
(b) Construction equipment shall be properly outfitted and maintained with noise reduction devices
to minimize construction - generated noise. Wherever possible, noise - generating construction
equipment shall be shielded from nearby residences by noise - attenuating walls, berms, or
enclosures.
(c) The contractor shall attempt to locate stationary noise sources as far away as possible from
noise - sensitive land uses.
Timing of Implementation - (a) Prior to project construction; (b), (c) During project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 11 -2
(a) Where feasible, collection activities associated with these facilities shall be conducted during
hours of the day which are not noise sensitive for nearby residents and other adjacent land uses. The
activities shall be commissioned to occur during normal work hours of the day to provide relative
quiet during the more sensitive evening and early morning periods.
(b) The County and cities shall include noise as an evaluation criterion when purchasing new
waste /recyclables transportation vehicles, and will purchase the quietest vehicles available when
reasonably possible. If the County or cities do not make direct purchases of such vehicles, it will
require licensed /franchised haulers, via license /franchise agreements, to include noise as an
evaluation criterion in their purchase of vehicles.
Timing of Implementation - (a), (b) Ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Addition to Mitigation Measure 11 -2
(c) A site - specific noise evaluation shall be conducted as part of the siting study for new and
expanded non - disposal facilities to identify potential noise problem areas prior to site selection. The
noise evaluation shall consider the location of sensitive receptors and evaluate sound barriers or
other means to reduce noise exposure. The evaluation shall also consider operational changes such
as restricting hours of operation (see Mitigation Measure 11 -3 (b)).
Timing of Implementation - (c) Prior to project approval.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 11 -3
(a) The County and cities shall include noise as an evaluation criterion during facility design and
when purchasing equipment for the new and expanded facilities and will purchase the quietest
equipment available to buy, when reasonably possible. If the County or cities do not make direct
purchases of such equipment, it will require facility owner /operators, via conditions of approval, to
include noise as an evaluation criterion in their purchase of equipment.
(b) The noise evaluation described in Mitigation Measure 11 -2 (c) shall consider the location of
sensitive receptors and locate equipment and operations to minimize the noise exposure to the extent
practical. The evaluation should consider enclosures for noisy equipment or sound barriers to shield
off -site receptors from noise.
Timing of Implementation - (a) Prior to project approval, ongoing; (b) Prior to project approval,
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 11 -4
Same as Mitigation Measure 11 -1.
Timing of Implementation - Same as Mitigation Measure 11 -1.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 11 -5
(a) Where feasible, collection activities associated with these facilities shall be conducted during
hours of the day which are not noise sensitive for nearby residents and other adjacent land uses. The
activities shall be commissioned to occur during normal work hours of the day to provide relative
quiet during the more sensitive evening and early morning periods.
(b) The County and cities shall include noise as an evaluation criterion when purchasing new
waste /recyclables transportation vehicles, and will purchase the quietest vehicles available when
reasonably possible. If the County or cities do not make direct purchases of such vehicles, it will
require licensed /franchised haulers, via license /franchise agreements, to include noise as an
evaluation criterion in their purchase of vehicles.
Timing of Implementation - (a), (b) Ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Revised Mitigation Measure 11 -6
(a) The County and cities shall include noise as an evaluation criterion when purchasing equipment
for the disposal facility and will purchase the quietest equipment available to buy, when reasonably
possible. If the County or cities do not make direct purchases of such equipment, it shall require
facility owner /operators, via conditions of approval, to include noise as an evaluation criterion in
their purchase of equipment.
Timing of Implementation - (a) Ongoing.
Implementation - Lead Agency.
Monitoring - Lead Agency.
Addition to Mitigation Measure 11 -6
(b) During project analysis, sound levels for landfill and quarry equipment will be analyzed to
determine whether standards would be exceeded. If it is determined that noise standards would be
exceeded at the property line of any residential use, the project shall include, to the extent practical,
sound barriers, special mufflers on equipment, or other means to reduce the noise levels at the
property line. A berm or other noise barrier shall be used to break the line of sight between noisy
equipment, such as rock hammers and rock crushers, and the property line prior to operation of the
equipment.
Timing of Implementation - (b) Prior to project approval.
Implementation - Lead Agency.
Monitoring - Lead Agency.
VEGETATION AND WILDLIFE
Revised Mitigation Measure 12 -1
(a) When new non - disposal and landfill facilities are proposed, site specific biotic studies shall be
performed to identify biotic resources on the sites. To the extent practical the new facilities shall be
constructed to avoid these resources. Where avoidance is not practical the project sponsor shall
consult with the appropriate State or Federal resource agencies to determine appropriate mitigation
for any loss of or change to the biotic resources. The project sponsor shall acquire all necessary
permits from these agencies. Compliance with permit conditions shall be a condition of approval of
the project.
Timing of Implementation - (a) Prior to project approval, prior to project construction.
Implementation - Lead Agency.
Monitoring - Lead Agency, California Department of Fish and Game, U.S. Fish and Wildlife.
Additions to Mitigation Measure 12 -1
(b) Riparian areas shall be avoided where possible in siting new facilities. If avoidance is not
possible, compensation for loss of riparian vegetation shall be made by planting and otherwise
enhancing a comparable area of streambank in the general vicinity where habitat quality can be
improved. Planting plans shall be reviewed by a qualified biologist and submitted to the California
Department of Fish and Game and other agencies, if needed, for review and comment prior to
implementation. Revegetation areas shall be managed to permanently protect the riparian vegetation
• Timing of Implementation - (b) Prior to project approval, prior to project construction, during
project construction, ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency, California Department of Fish and Game, U.S. Fish and Wildlife.
Revised Mitigation Measure 12 -2
(a) No solid waste disposal facility shall be built or expanded within a wetland unless it can be
demonstrated that the landfill will not contribute to or cause significant degradation of wetlands or
violations of the Clean Water Act or State water quality standards, jeopardize endangered or
threatened species, violate any toxic effluent standard, or violate any requirement of the Marine
Protection, Research, and Sanctuaries Act. There must also be no practicable alternative to the
proposed location which does not involve wetlands. (Title 40, Chapter 1, Subchapter 1, Part 258,
Subpart B 40 CFR 258 .)
(b) When new non - disposal and landfill facilities are proposed, site specific biotic studies shall be
performed to identify biotic resources on the sites. To the extent practical the new facilities shall be
constructed to avoid these resources. Where avoidance is not practical the project sponsor shall
consult with the appropriate State or Federal resource agencies to determine appropriate mitigation
for any loss of or change to the biotic resources. The project sponsor shall acquire all necessary
permits from these agencies. Compliance with permit conditions shall be a condition of approval of
the project.
• Timing of Implementation - (a) Prior to project approval, prior to project construction, ongoing; (b)
Prior to project approval, prior to project construction, ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency, California Department of Fish and Game, U.S. Fish and Wildlife.
Additions to Mitigation Measure 12 -2
(c) Riparian areas will be avoided where possible in siting new facilities. If avoidance is not possible,
compensation for loss of riparian vegetation shall be made by planting and otherwise enhancing a
comparable area of streambank in the general vicinity where habitat quality can be improved.
Planting plans shall be reviewed by a qualified biologist and submitted to the California Department
of Fish and Game and other agencies, if needed, for review and comment prior to implementation.
Revegetation areas shall be managed to permanently protect the riparian vegetation.
(d) Before construction during the active nesting period between March 1 and September 1, the
Integrated Waste Division of the Sonoma County Department of Transportation and Public Works
shall determine the locations of any active raptor nests that could be affected. If any active nests are
found, removal of the trees containing the nests shall be delayed until a qualified wildlife biologist
has determined that the young birds are able to leave the nest and forage on their own. A qualified
wildlife biologist shall be consulted to determine what activities must be avoided in the vicinity of the
nests while the nests are active, and those recommendations shall be followed during construction.
• Timing of Implementation - (a) Prior to project approval, prior to project construction, during
project construction.
• Implementation - Lead Agency.
• Monitoring - Lead Agency, California Department of Fish and Game, U.S. Fish and Wildlife.
CULTURAL RESOURCES AND PALEONTOLOGY
Revised Mitigation Measure 13 -1
(a) Intensive on -site cultural and paleontological resources surveys shall be conducted by a qualified
archaeologist and paleontologist prior to construction in any areas of a site to be used for solid waste
non - disposal facilities that are designated as sensitive in a city or County planning document. In
addition, the Northwest Information Center (KWIC) will be consulted to determine if previously
recorded archaeological sites exist on or in the vicinity of the project site. The purpose of this survey
will be to more precisely locate and map significant cultural and paleontological resources. The
services of the archaeologist and paleontologist shall be retained by the project sponsor.
(b) If, in the process of the cultural resource surveys, significant archaeological resources are found
to exist on the site, the project sponsor shall consider changing the facility layout to avoid such
resources. If it is not possible to make this change, however, formal archaeological data collection
work on the significant resources will be completed. This shall include a complete surface collection
of cultural material and, at a minimum, excavation of a sample subsurface cultural material sufficient
to evaluate the extent, depth, and make -up of site components (i.e., archaeological testing). The
overall objectives of such data collection work shall be to explicitly identify those research questions
for which the site contains relevant information, with the research questions representing those
presently expressed by the body of professional archaeologists in the region. If the results of the
archaeological testing indicate that additional mitigative data recovery work is justified or warranted,
it will be completed prior to the construction of the facility.
(c) If paleontological resources cannot be avoided by changing the site layout, a program of data
collection and recovery shall be implemented.
(d) Archaeological and paleontological monitors shall be present during studies, site construction and
development activities in areas of high cultural and paleontological resource sensitivity when
recommended by a site - specific study for a project under the CoIWMP or the 2003 CoIWMP, or
when a designated Native American tribal representative requests to monitor projects. These
monitors shall be retained by the project sponsor. In the event that human remains are unearthed
during construction, state law requires that the County Coroner be notified to investigate the nature
and circumstances of the discovery. At the time of discovery, work in the immediate vicinity would
cease until the Coroner permits work to proceed. If the remains were determined to be prehistoric,
the find would be treated as an archaeological site and the mitigation measure described above would
apply.
(e) In the event that unanticipated cultural or paleontological resources are encountered during
project construction, all earthmoving activity shall cease until the project sponsor retains the services
of a qualified archaeologist or paleontologist. The archaeologist or paleontologist shall examine the
finding, assess their significance, and offer recommendations for procedures deemed appropriate to
either further investigate or mitigate adverse impacts to those cultural or paleontological
archaeological resources that have been encountered (e.g., excavate the significant resource). These
additional measures shall be implemented.
• Timing of Implementation - (a) through (e) Prior to project approval, prior to project construction,
during project construction.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Revised Mitigation Measure 13 -2
Same as Mitigation Measure 13 -1.
Timing of Implementation -Same as Mitigation Measure 13 -1.
Implementation - Lead Agency.
• Monitoring - Lead Agency.
Mitigation Measure 13 -3
(a) Intensive on -site historical resources surveys shall be conducted by a qualified architectural
historian prior to construction where structures over 45 years old or sites known to have historical
significance could be affected by proposed facilities. The purpose of the survey shall be to determine
the historical significance of the resources and whether the proposed project would affect those
structures that are found to have historical significance. The services of the architectural historian
shall be retained by the project sponsor.
(b) If, in the process of the historical resource surveys, significant resources are found to exist on the
site, the project sponsor shall consider changing the facility layout to avoid such resources. If it is not
possible to make this change, however, mitigation work in accordance with the Secretary of the
Interior's Standards for the Treatment of Historic Properties, which address preservation,
rehabilitation, restoration and reconstruction of historic resources, shall be completed for the
historical resource.
• Timing of Implementation - (a), (b) Prior to project approval, prior to project construction.
Implementation - Lead Agency.
• Monitoring - Lead Agency.
VISUAL RESOURCES
Revised Mitigation Measure 14 -1
(a) To the extent possible, new facilities shall not be located within Designated Scenic Resource
Areas as designated in the adopted 1989 Sonoma County General Plan (as amended), unless the
facilities are not visible from public roads.
(b) A landscaping plan for each facility, if required by local regulations, shall include visual
mitigation measures, such as earthen berms, tree screening, and other landscaping elements along the
perimeter of the site in order to screen the proposed facility from public view. Earthen berms and tree
screening would be especially important along nearby roadways or other visual corridors.
(c) Existing trees shall be retained to the extent feasible as a visual screen.
(d) New or expanded facility buildings shall be located away from site borders (to the extent feasible)
and shall maximize the use of any natural shielding provided by the topographical relief of site's
existing landforms.
(e) Consistent with any required local design review recommendations, facility support buildings and
site plans shall be designed and constructed with appropriate materials, exterior colors, and
architectural details compatible with the natural landscape and surrounding development in the
project vicinity.
(f) Disturbed areas that are not directly a part of the project shall be revegetated immediately
following construction.
(g) Project lighting equipment shall be of low- profile design, unobtrusive, and consistent with
adjacent land uses.
• Timing of Implementation - (a) through (e, g) Prior to project approval, prior to project
construction; (f) Ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Revised Mitigation Measure 14 -2
On -site Mitigation:
(a) Litter shall be controlled by a litter abatement program.
(b) Litter fences shall be established around new or expanded non - disposal facilities, as necessary to
prevent litter from blowing onto off -site areas.
(c) Litter along on -site roads shall be routinely collected and removed.
Off -site Mitigation:
(d) Litter shall be controlled on nearby roads providing access to new or expanded non - disposal
facilities with a litter abatement program.
(e) Open cargo areas of vehicles (e.g., pick -ups, trucks, trailers, etc.) hauling waste shall be covered.
This,requirement will be enforced with financial penalties levied at the time of delivery to County
Non - Disposal Sites and by the California Highway Patrol (CHP) in the areas near disposal sites.
• Timing of Implementation - (a) through (e) Ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency, Local Enforcement Agency, (e)California Highway Patrol.
Additions to Mitigation Measure 14 -2
(f) A litter abatement program shall be implemented to reduce litter accumulation resulting from the
activities of commercial haulers. The program could include, but not be limited to:
1) education of commercial haulers; and 2) requirements for thorough cleaning of debris boxes,
covering emptied containers, or other similar measures, to reduce litter created upon exiting non -
disposal facilities.
(g) The litter abatement program shall consider limiting non - disposal facility operations to
commercial or private (general public) haulers, including the co- location of disposal and
non - disposal facilities to reduce roadside litter.
• Timing of Implementation - (f), (g) Ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Revised Mitigation Measure 14 -3
(a) To the extent possible, new facilities shall not be located within Designated Scenic Resource
Areas, as designated in the adopted 1989 Sonoma County General Plan (as amended), unless the
facilities are not visible from public roads.
(b) A landscaping plan shall be required for each facility and shall include visual mitigation
measures, such as earthen berms, tree screening, and other landscaping elements along the perimeter
of the site in order to screen the proposed facility from public view. Earthen berms and tree screening
would be especially important along nearby roadways or other visual corridors.
(c) Existing trees shall be retained to the extent feasible as a visual screen.
(d) New or expanded landfills shall utilize site buffer areas (to the extent feasible) and shall
maximize the use of any natural shielding provided by the relief of site landforms.
(e) Consistent with any required local design review recommendations, construct new and expanded
landfills and facility support buildings with appropriate materials, exterior colors, and architectural
details compatible with the natural landscape and surrounding development in the project vicinity.
(f) Disturbed areas that are not directly a part of the project shall be revegetated as soon as
practicable.
(g) Project lighting equipment shall be of low - profile design, unobtrusive, and consistent with
adjacent land uses.
• Timing of Implementation - (a) through (e, g) Prior to project approval, prior to project
construction; (f) Ongoing.
Implementation - Lead Agency.
• Monitoring - Lead Agency.
Addition to Mitigation Measure 14 -3
(h) Exterior security lighting plans shall be prepared for all new facilities. Designs shall be
consistent with County design standards, including exterior lighting that does not glare onto adjacent
parcels, and includes motion sensors to minimize light and glare impacts on surrounding land uses.
• Timing of Implementation - (a) Prior to project approval, prior to project construction.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Addition to Mitigation Measure 14 -3
(i) Visual analysis of the Central Landfill expansion, or a new landfill site, shall include photo
simulation, three - dimensional - terrain modeling, or similar methods to evaluate potential change in
visual character as seen from nearby public roads.
• Timing of Implementation - (i) Prior to project approval..
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Revised Mitigation Measure 14 -4
On -site Mitigation:
(a) Litter shall be controlled by a litter abatement program.
(b) Litter fences shall be established around active landfill areas to prevent litter from blowing onto
off -site areas.
(c) Litter along on -site roads shall be routinely collected and removed,
Offsite Mitigation:
(d) Litter shall be controlled with a litter abatement program on nearby roads which provides access
to new or expanded disposal facilities.
(e) Open cargo areas of vehicles (e.g, pick -ups, trucks, trailers, etc.) hauling waste shall be covered.
This requirement will be enforced with financial penalties levied at the time of delivery to County
Disposal Sites and by the CHP in the areas near disposal sites.
• Timing of Implementation - (a) through (e) Ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency, Local Enforcement Agency, (e) California Highway Patrol.
Addition to Mitigation Measure 14 -4
(f) Roadsides adjacent to landfill sites shall be cleaned each day that the landfill is open. Signs will
be posted on roadways adjacent to the landfill site that will provide a phone number that people may
call to report vehicles that are seen littering on the way to or from the landfill. The County, or its
designee, will, to the extent feasible, identify offending haulers and request that corrective action be
taken.
(g) A litter abatement program will be implemented to reduce litter accumulation resulting from the
activities of commercial refuse haulers. The program could include, but not be limited to,
1) education of commercial refuse haulers, and 2) requirements for thorough cleaning of debris boxes,
covering emptied containers or other similar measures to reduce litter created upon exiting the Central
Disposal Site or any new landfill.
• Timing of Implementation - (f), (g) Ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency, Local Enforcement Agency.
POPULATION & HOUSING, PUBLIC SERVICES,
RECREATION, &UTILITIES
Revised Mitigation Measure 15 -1
(a) For each facility and for the applicable CoIWMP programs, a Fire Prevention Program shall be
developed and implemented (in consultation with the Fire Marshal). This program shall detail both
structural fire suppression mechanisms in the design of the facilities, such as fire sprinkler systems in
facility buildings, as well as procedural programs for minimizing fire hazards.
(b) For each facility that handles hazardous materials and for the applicable CoIWMP programs, a
Hazardous Materials Inventory and Emergency Response Plan shall be prepared and implemented (in
consultation with the appropriate local agency).
(c) Private project sponsors shall pay development impact fees to cover the cost of additional fire
protection services, if necessary.
• Timing of Implementation - (a), (b), (c) Prior to project construction.
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Mitigation Measure 15-2
(a) For each new and expanded solid waste disposal facility, a Fire Prevention program shall be
developed and implemented (in consultation with the Fire Marshal). This program shall entail both
structural fire suppression mechanisms in the design of the facilities, such as fire sprinkler systems in
facility buildings, as well as procedural programs for minimizing fire hazards.
(b) Private project sponsors shall pay development impact fees to cover the cost of additional fire
protection services, if necessary.
• Timing of Implementation - (a), (b) Prior to project construction..
• Implementation - Lead Agency.
• Monitoring - Lead Agency.
Mitigation Measure 15-4
Any projects which involve discharge to waterways or stormwater runoff shall comply with the
permitting provisions of the applicable Regional Water Quality Control Board.
• Timing of Implementation - Prior to project construction, during project construction, ongoing.
• Implementation - Lead Agency.
• Monitoring - Lead Agency, Regional Water Quality Control Board.
EXHIBIT E
STATEMENT OF OVERRIDING CONSIDERATIONS
FOR THE
2003 CoIWMP FINAL SUPPLEMENTAL PROGRAM ENVIRONMENTAL IMPACT REPORT
Pursuant to California Public Resources Code § 21081, subd. (b); and § 15093, et.seq. of Title 14,
Chapter 3, of the California Code of Regulations (State CEQA Guidelines, as amended December 1,
2002), the SCWMA issues the following Statement of Overriding Considerations:
The adopted 1996 CoIWMP has been updated as the proposed 2003 CoIWMP in accordance with the
California Integrated Waste Management Act of 1989 (AB 939). A Final Supplemental Program
Environmental Impact Report (Final SPEIR) was prepared on the proposed 2003 CoIWMP in accordance
with CEQA Guidelines. The proposed 2003 CoIWMP will have certain potentially significant adverse
impacts which are identified in the proposed project's Final SPEIR. These significant impacts will not be
reduced to insignificant levels with the implementation of the mitigation measures proposed in the Final
SPEIR; namely in the areas of land use, soils and agricultural resources, hydrology and water quality,
public safety, transportation, air quality, noise, vegetation and wildlife, and visual resources. Therefore,
the SCWMA must issue a Statement of Overriding Considerations.
The SCWMA has carefully considered the proposed 2003 CoIWMP and the unavoidable significant
adverse environmental impacts associated with it, and hereby determines that specific overriding
environmental, economic, legal, social, technological, or other benefits of the proposed 2003 CoIWMP
outweigh the significant effects on the environment because:
1. The SCWMA believes that the proposed CoIWMP is the best plan available to achieve
the 50% waste diversion goal that has been mandated by AB 939. For example, the proposed CoIWMP
includes a formal agreement among member jurisdictions to direct the flow of refuse and green waste to
solid waste facilities in Sonoma County. This will be necessary to finance the implementation of waste
reduction programs, facilities and transfer stations. In addition, the programs and facilities envisioned in
the CoIWMP are considered to provide the most efficient and cost - effective means of achieving the AB
939 goals over the long term.
2. While significant unavoidable impacts may result from some of the disposal and non -
disposal facilities envisioned in the CoIWMP, these facilities are necessary to protect public health and
safety. New solid waste facilities will protect the public from health risks associated with exposure to
non - managed solid waste disposal which can result from the lack of disposal sites. These health risks
include diseases carried by vectors, such as rats and flies, which are harbored and nourished in
uncontrolled garbage piles and the potentially toxic compounds released during open burning of refuse.
Lack of sufficient solid waste facilities could result in more frequent illegal dumping and other unhealthy
waste management practices. Thus, the proposed 2003 CoIWMP provides greater health protection
benefits to the residents in Sonoma County (including the incorporated areas within the County) by
providing adequate facilities. By providing convenient and cost - effective alternatives to illegal dumping,
the project minimizes the risk of exposing the public to diseases that may otherwise result from the
creation of roadside dumps, backyard burning and littering.
3. Impacts from solid waste facilities will be reduced to the extent practicable by the
mitigation measures identified in the FSPEIR and by existing State and Federal laws that regulate solid
waste facilities. The environmental impacts associated with the new solid waste facilities in the project
are minimized as such facilities will allow solid waste in the County to be disposed of in regulatory
compliant facilities as opposed to a lack of regulatory- compliant disposal facilities (e.g., illegal dumps,
backyard burning, littering) which could result in more significant adverse air, water, soil, health and
biological impacts.
4. The proposed CoIWMP will improve the waste diversion program. The long -term social
benefits resulting from waste diversion programs include conservation of resources, both natural
resources and landfill capacity, strengthening the economic base of the community by maximizing the use
of materials, and encouraging local businesses. In particular, the implementation of the non - disposal solid
waste facilities described in the project support recycling, composting and waste reduction behavior by
the public which in turn provides the following benefits to the community:
i) Conservation of natural resources through the recycling of paper products (e.g.,
newspaper, corrugated cardboard, office paper, etc. ) metal (aluminum, steel, other scrap
metal), glass and plastics (thereby conserving non - renewable petroleum products). Additional
conservation of resources will result from greater reuse of products before recycling or disposal.
ii) Conservation of energy will result from the recycling of paper, metal, glass, and
plastics.
iii) Conservation of landfill capacity is achieved through recycling and reuse of
products and materials which would otherwise be discarded. In addition, the reduction of
disposable waste will be achieved through the siting of an integrated Resource Management
Facility (RMF). A reduction in disposable waste from the implementation of the proposed RMF
means that the landfill would last longer and require less long -term landfill capacity, thereby
reducing the associated environmental and social impacts of larger landfills. It would also
produce methane gas for the production of electricity.
iv) Composting yard debris and other organic wastes create compost, a valuable soil
amendment which helps replenish topsoil, and essential element for food production.
Yard debris composes part of the waste stream. Diverting this material and converting it to
compost as described in the proposed 2003 CoIWMP thereby conserves landfill capacity and at
the same time helps create new topsoil.
V) Providing mandatory access to recycling facilities for residential, commercial,
industrial, and institutional waste generators.
5. By approving a comprehensive program, rather than incremental projects over time, the
SCWMA (in cooperation with the County of Sonoma and the incorporated areas in the County) can plan
its solid waste management systems to optimize the use of financial and human resources to achieve or
exceed the goals of AB 939.
6. Implementation of the proposed 2003 CoIWMP will ensure that the solid waste
infrastructure is in place to accommodate projected new development within the County, thereby avoiding
the numerous and significant negative social, economic, health and environmental impacts which would
result from inadequate waste management capacity.
7. The landfill expansion and siting processes identified in the proposed 2003 CoIWMP will
enable the SCWMA to maximize the use of existing landfill capacity and infrastructure that meets the
stringent local, state, and federal requirements, and provide for future long -term disposal capacity through
the possible location of a new disposal site in Sonoma County. For example, the proposed 2003
CoIWMP will provide an expansion of the Central Landfill beyond its current permitted capacity (i.e.,
beyond the year 2015). This will maximize the return on the public investment in infrastructure at the
Central Landfill, thereby reducing the solid waste disposal costs to the public. It will also delay the
development of a new landfill and the associated impacts.
The SCWMA has weighed the above benefits of the proposed 2003 CoIWMP against its unavoidable
environmental risks and adverse environmental effects identified in the Final SPEIR. The SCWMA
hereby finds that the unavoidable impacts have been reduced to the extent practicable by the inclusions of
the mitigation measures set forth in Exhibit B, and determines that the benefits described above outweigh
that risks and adverse effects and, therefore, determines that these risks and adverse environmental effects
are acceptable.