HomeMy WebLinkAbout3.2 Zone 7 Water Agency Present
CITY CLERK
File # [1][Q][Q][Q]-[1J~
AGENDA STATEMENT
CITY COUNCIL MEETING DATE: August 21, 2007
SUBJECT:
Presentation by the Zone 7 Water Agency Regarding the Stream
Management Master Plan and Stream WISE Program
Report Prepared by: Melissa Morton, Public Works Di~
None
ATTACHMENTS:
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RECOMMENDA nON: ~ \ Receive and accept the presentation, and provide any comments.
FINANCIAL STATEMENT: There are no financial impacts associated with the presentation.
DESCRIPTION: The Zone 7 Water Agency has requested the opportunity to make a presentation
regarding the past work and current status of its Stream Management Master Plan (SMMP). The SMMP
is a master plan that addresses flood protection, drainage issues and other environmental and community
enhancing needs affecting management of the streams and arroyos in the Tri-Valley area. The SMMP
identified 45 individual projects to meet several resource area goals and objectives in addition to the
primary purpose of flood protection within the Valley. The StreamWISE (Waterway Improvements
Supporting the Environment) program is a multi-disciplined approach to prioritize these projects and
develop the specific public outreach, engineering, environmental and financial needs of each project.
This report provides a general summary of the SMMP and the Stream WISE program for Council's
information. Representatives from Zone 7 staff and consulting teams are present to give more details on
the plans and describe the current and future direction of these important flood control and
environmental/community enhancing plans and their related projects within the City and the Tri-Valley
area.
Background
Zone 7's service area comprises approximately 426 square miles in eastern Alameda County and includes
the cities of Dublin, Pleasanton, and Livermore as well as surrounding lands in unincorporated Alameda
County. Zone 7 provides flood protection within this service area as well as providing wholesale water
supplies to a current population of approximately 190,000. This population is expected to increase to
approximately 250,000 by the year 2030. As this valley is transformed from rural to suburban land uses,
COpy TO: Zone 7 Water Agency
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the potential for storm water runoff to exacerbate the potential for localized flooding is expected to
Increase.
Zone 7 maintains certain improved flood control channels and improves or supports the improvements of
existing major drainage channels as possible. Zone 7 currently owns and maintains approximately 39
miles of major drainage ways, flood control channels, streams and arroyos on the Valley floor. The
Special Drainage Area (SDA 7-1) Program, which is funded by developer fees, is currently the sole source
of revenue for Zone 7 to expand or improve the existing flood control system.
The SMMP serves as an update to Zone 7's existing 1966 Flood Control Master Plan and to identify
several additional objectives related to flood control facility improvements and stream management within
its service area. Past updates to the 1966 Plan included the concept and cost estimates for concrete
channeling existing arroyos or constructing new channels adjacent to the arroyos to provide the level of
flood protection needed. However, there have been a number of changes to this past practice of flood
control protection, including regulatory changes, environmental considerations and funding opportunities
that impacted the way flood control agencies manage and improve flood control in streams and flood
control channels. Zone 7 began development of the SMMP in September 2002 in recognition of these
changes, constraints and challenges.
The purpose of the SMMP was to develop a master plan of alternatives to maximize flood protection and
drainage protection. However, most of the projects identified within the SMMP also provide one or more
resource area improvements related to regional flood protection storage, water supply/quality
enhancements, erosion control/sediment removal, habitat and wetland creation, riparian corridor
enhancement for bank stabilization, trails, recreation and public education. The SMMP was a valley-wide
stakeholder driven program that included considerable representation, input and
discussion/recommendations from most if not all valley land planning, parks, environmental and special
district agencies and jurisdictions within the valley that were or would be impacted by the flood
control/drainage or other resource areas identified within the plan. City staff was involved in the
stakeholder process and review of the SMMP drafts, including its Environmental Impact Report.
The SMMP has given Zone 7 a planning tool or "road map" for addressing not only the flood control and
channel maintenance issues within the valley, but also those other resource areas described above. The
SMMP and associated Master Environmental Impact Report (MEIR) were adopted by the Zone 7 Board in
August 2006, but the adoption did not include an implementation plan. The consultant team for the
development of the implementation plan, or Stream WISE program is led by West Yos! & Associates.
Representatives of the team will be part oftonight's SMMP/StreamWISE presentation.
The entire SMMP, an executive summary of the SMMP, along with the complete SMMP MEIR which
includes detailed descriptions & locations of each of the 45 projects identified within the SMMP, are
available for review through the internet on the Zone 7 website: www/zone7water.com. Information
regarding the Stream WISE program is available at the same web site address. Hard copies of the SMMP
and/or the SMMP MEIR are also available at the Zone 7 Administrative Office located at 100 North
Canyons Parkway in Livermore, Pleasanton's City Clerk's office, 123 Main Street or the City's Public
Library, 400 Old Bernal Avenue in Pleasanton.
Staff recommends that the City Council receive and accept the presentation, and provide any comments.
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