2005/12/13 City Council Resolution (14)RESOLUTION NO. 2005-361
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF ROHNERT PARK
APPROVING TASK ORDER 2005 -13 WITH WINZLER & KELLY FOR THE
STORM WATER SYSTEM MODEL STUDY — PHASE 4, PROJ. NO. 2003-04
WHEREAS, a Storm Water System Model Study is critical to the City to identify
deficiencies within the existing system and to plan ahead for future development; and
WHEREAS, the Storm Water System Model Study Phases 1, 2, and 3 have been
approved by Council, and
WHEREAS, Winzler & Kelly Consulting Engineers have completed Phase 1 and are
finalizing Phases 2 and 3, and are ready to begin work on Phase 4 and
WHEREAS, Winzler & Kelly Consulting Engineers has been authorized to provide city
engineering services, including capital project engineering such as this Storm Water System
Model Study.
NOW, THEREFORE, be it resolved by the City Council of the City of Rohnert Park
that it does hereby authorize and approve that Task Order No. 2005 -13 with Winzler & Kelly
Consulting Engineers for the Storm Water System Model Study Phase 4, for an amount not -to-
exceed $37,940.
BE IT FURTHER RESOLVED that the City Manager is hereby authorized and directed
to execute documents pertaining same for and on behalf of the City of Rohnert Park.
DULY AND REGULARLY ADOPTED this date of December 13, 2005
CITY OF ROHNERT PARK
Mayor
JH- S:05 -d
TASK ORDER NO. 2005 -13
CITY OF ROHNERT PARK
AND
WINZLER & KELLY
AUTHORIZATION OF PROFESSIONAL SERVICES TO
PROVIDE ENGINEERING SERVICES FOR THE
STORM WATER SYSTEM MODEL STUDY
PHASE 4
SECTION 1 -PURPOSE
The purpose of this Task Order is to authorize and direct Winzler & Kelly to proceed
with the work specified in Section 2 below in accordance with the provisions of the
AGREEMENT between the City of Rohnert Park ( "City ") and Winzler & Kelly ( "Consultant ")
hereto dated June 22, 2003.
SECTION 2 - SCOPE OF WORK
The items authorized by this Task Order are presented in Attachment A - Scope of Services.
SECTION 3 - COMPENSATION AND PAYMENT
Compensation shall be as provided in the AGREEMENT between the parties hereto referenced in
SECTION 1 above. The total cost for services as set forth in SECTION 2 shall be actual costs (time and
materials) based on Consultants' standard labor charge in accordance with the provisions of the
AGREEMENT shown in Attachment "B' ' fo r an amount not -to- exceed $37,940.
SECTION 4 - TIME OF PERFORMANCE
The work described in SECTION 2 shall be completed in accordance with the schedule as shown
below and as described in Attachment "A.' ' City al so acknowledges that the schedule may be adjusted
to accommodate City staff schedule in providing needed data as well as data and approvals that may
needed from other resource agencies.
Project Schedule
Task Date
Notice to Proceed December 16, 2005
Task 1 - Kickoff Meeting December 21, 2005
Task 2- Prepare Alternatives Analysis January 31, 2006
Task 3 - Develop 10 -Year CIP February 16, 2006
Task 4 - Develop Storm Drain O &M Plan March 13, 2006
ATTACHMENT "A"
CITY OF ROHNERT PARK
SCOPE OF SERVICES
STORM WATER SYSTEM MODEL STUDY — PHASE 4
GENERAL DESCRIPTION AND BACKGROUND
The City of Rohnert Park has requested Winzler & Kelly Engineers ( "Consultant ") to
provide engineering services to conduct a storm drain system model within the Zone I
watershed boundaries ( "Study"). The modeling study will be conducted in four phases
and is generally described in the paragraphs that follow. The intent of the Study is to
model the City's storm drain system and use as much existing data as possible. The
original approach was to use Sonoma County Water Agency (SCWA) creek models for
the creek system in the City. Creek maintenance and ownership are the responsibility of
the SCWA. However, it has been stated by the SCWA that the creek models in the city
are not adequate and not to be redeveloped. The SCWA has approved additional funding
for modeling the creeks within the City sphere of influence and this task is considered as
Phase 3. The Consultant has completed Phase 1 and is currently finalizing Phase 2 and 3.
This Attachment identifies the tasks necessary for completion of Phase 4.
• Phase 1. The first phase includes data review through hydrologic modeling. Data
review will include the review of available data and design criteria used by the
City and Sonoma County Water Agency. Consultant will prepare a Technical
Memorandum that generally describes the existing drainage system; the
contributing watersheds and sets forth design criteria to be used in the analysis of
the natural and constructed storm drainage facilities. This includes a description
of the City's existing storm drain and creek system, descriptions of flooding
problems based on the FEMA FIS Study, study area characteristics based on the
City's current General Plan, establishment of model and design criteria, and
coordination with the Sonoma County Water Agency (SCWA) regarding the
model and design criteria. The Consultant will develop a hydrologic model based
on Water Agency criteria that will identify design storm flows at key nodes to be
used in the future hydraulic modeling for the creeks and trunk storm drainage
systems.
Phase 2. The second phase is the development of the hydraulic models for the
storm drain trunk system (pipes 36- inches and larger). The hydraulic model,
Haestad's StormCAD, will be developed for the existing storm drain network
system. The results will indicate whether or not the existing systems modeled are
adequate. The final results of this model cannot be completed until Phase 3, the
creek modeling phase is complete which will determine the beginning hydraulic
grade lines (HGL) for storm drains discharging to the creek.
Attachment "A" to
Task Order No. 2005 -13
Task 6- Prepare Summary Document Report
The Consultant will prepare a Summary Report that collects the previous Phase Reports
and includes the Capital Improvement Program and O &M Manual.
Task 7 — Project Management /Coordination
This task includes coordination meetings with City staff, SCWA, Specific Plan Area
developers, and others as needed, to assist in the establishment of the existing storm drain
and creek system in the city limits and development of a CIP. This task also includes
preparation of meeting notes and preparation and attendance of staff -level technical
review workshops, and monitoring the project budget and schedule.
Project Schedule
Task
Notice to Proceed
Task 1 — Kickoff Meeting
Task 2- Prepare Alternatives Analysis
Task 3 — Develop I 0 -Year CIP
Task 4 — Develop Storm Drain O &M Plan
Task 5 — Review Funding Options
Task 6 — Prepare Summary Document Report
Task 7 — Project Management/Coordination
Date
December 16, 2005
December 21, 2005
January 31, 2006
February 16, 2006
March 13, 2006
March 13, 2006
March 31, 2006
Ongoing
Attachment "A" to
Task Order No. 2005 -13
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