PhasePhase IIII NPDESNPDES StormStorm WaterWater ManagementManagement PlanPlan March 2005 Prepared By WINZLER&KELLY CONSULTING ENGINEERS Town of Windsor Phase II NPDES Storm Water Management Plan Project No. 03-228303-003 Project Contacts: Toni Bertolero Project Manager [email protected] Brian Bacciarini Staff Scientist [email protected] Winzler & Kelly Consulting Engineers 495 Tesconi Circle, Suite 9, Santa Rosa, California 95401 Phone: (707) 523-1010 Fax: (707) 527-8679 March 2005 Reviewed by:__________ Date:__________ TABLE OF CONTENTS 1.0 Background...........................................................................................................................1 1.1 Regulatory Background..................................................................................................1 1.2 Town Resources .............................................................................................................2 1.2.1 Public Works Department..................................................................................2 1.2.2 Planning Department..........................................................................................2 1.2.3 Building Division ...............................................................................................3 1.2.4 Economic Development and Community Services Department .......................3 1.2.5 Administrative Services Department .................................................................3 1.3 Outside Agencies............................................................................................................3 2.0 Administration, Planning and Funding ................................................................................4 2.1 Administration................................................................................................................4 2.2 Planning..........................................................................................................................4 2.3 Funding...........................................................................................................................5 2.4 Geographic and Land Use Description ..........................................................................5 2.4.1 Watershed...........................................................................................................5 2.4.2 Land Use Description.........................................................................................6 3.0 Pollutants of Concern & Target Audiences .........................................................................6 3.1 Pollutants of Concern .....................................................................................................6 3.2 Target Audiences............................................................................................................7 4.0 Minimum Control Measures ................................................................................................7 4.1 Public Education and Outreach......................................................................................7 4.2 Public Involvement and Participation............................................................................8 4.3 Illicit Discharge Detection and Elimination...................................................................9 4.4 Construction Site Storm Water Runoff Control...........................................................12 4.5 Post-Construction Storm Water Management .............................................................13 4.6 Pollution Prevention / Good Housekeeping for Municipal Operations.......................14 5.0 Monitoring and Evaluation.................................................................................................14 6.0 Signatory Requirement.......................................................................................................15 7.0 Acronym List......................................................................................................................16 Tables Table 1 – Storm Water Management Plan At-a-Glance Figures Figure 1 – Town of Windsor Creek Jurisdictions and Flood Zone Map Figure 2 – Town of Windsor Watershed Map Figure 3 – Town of Windsor Land Use Map 03-228303-003 1.0 BACKGROUND 1.1 Regulatory Background The quality of water in our nation’s waterways has improved greatly since the Clean Water Act was passed in 1976. In spite of this, many water bodies, approximately 40 percent, remain impaired or degraded. The leading source of this impairment is polluted storm water runoff. Because of this, the United States Environmental Protection Agency (U.S. EPA) promulgated a national storm water program in 1990. The Storm Water Phase I Rule (Phase I Rule) addresses storm water runoff from cities with populations over 100,000, construction sites over 5 acres in size, and 10 categories of industrial dischargers by using the National Pollutant Discharge Elimination System (NPDES) permit coverage program. The federal Storm Water Phase II Final Rule (Phase II Rule) is the follow up to the Phase I Rule and requires operators of small municipal separate storm sewer systems (MS4s) to obtain an NPDES permit. The Phase II Rule automatically requires compliance for all small MS4s that are located in urbanized areas as defined by the Census Bureau and which are not already permitted under the Phase I program. The state or federal government can also designate cities outside of urban areas due to their high population density, growth potential, and/or proximity to sensitive water bodies. The Town of Windsor (Town) was automatically designated by the US EPA due to meeting the “urbanized area” criteria. Other cities in Sonoma County, including Cotati, Rohnert Park, Petaluma, Sonoma, Healdsburg and Sebastopol are also new Phase II permittees. Once an MS4 is designated into the storm water program based on urbanized area boundaries, it cannot apply for a waiver. In order to achieve compliance with the Phase II Rule, the Town is required to prepare a Storm Water Management Plan (Plan) and submit a Notice of Intent and a permit fee. The Plan will serve as the Town’s permit, describing actions that include Best Management Practices (BMPs), measurable goals, and timetables for what are defined as Minimum Control Measures (MCMs). MCMs are storm water program areas that must be addressed by all regulated MS4s. During the first five-year permit term, the Town must submit annual reports to the North Coast Regional Water Quality Control Board (Regional Board) that document and convey progress in implementing the six MCMs. For subsequent permit terms, reports must be submitted in years 2 and 4 only, unless the permitting authority requests otherwise. The first annual report will be due to the Regional Board after the Town becomes officially permitted under the Phase II program. The Final State General Storm Water Permit (General Permit) was adopted on April 30, 2003. On March 10, 2003, the Town submitted a Notice of Intent (NOI) form, a permit fee, and a draft Plan. The Town submitted its Final Plan in July 2003. Upon review of the Final Plan, the Regional Board requested in a letter dated October 7, 2003 that certain additional information be included. Those additions have been incorporated into this version of the Plan. This Plan delineates how the Town will comply with the Phase II Rule. The Plan has been developed around the six required MCMs required by the permit. They are: 03-228303-003 1 · Public Education and Outreach; · Public Involvement and Participation; · Illicit Discharge Detection and Elimination; · Construction Site Storm Water Runoff Control; · Post-Construction Storm Water Management in New Development and Redevelopment; and · Pollution Prevention/Good Housekeeping for Municipal Operations. 1.2 Town Resources The Town will utilize personnel and resources from many departments to implement the Plan. In fact, many Town departments are already performing activities that can be credited as BMPs under the Phase II Rule. A general description of each Town department, its function, and storm water-related activities are provided below. 1.2.1 Public Works Department The Public Works Department is responsible for several maintenance functions of publicly owned properties within the Town. The Public Works Department maintains the water delivery system and the Town’s wells, and is responsible for the treatment and disposal of wastewater generated within the Town. The Public Works Department is also responsible for administering the Town's franchise agreement with the waste hauling contractor, West Sonoma County Disposal (WSCD). WSCD’s services include comprehensive curbside recycling, refuse disposal, and street sweeping. The Public Works Department currently conducts or contracts the following specific activities that reduce pollutants in storm water runoff: · Storm drain system maintenance; · Pre-treatment program; and · Street sweeping operations The Public Works Department will be taking a lead role in the implementation of the Plan. The Public Works Director, Mr. Richard Burt, will be the Storm Water Program Leader (Program Leader). 1.2.2 Planning Department The Planning Department is responsible for administration of the Town's planning activities, including implementation of the General Plan, coordination of environmental requirements, processing development applications, zoning enforcement, and the provision of technical and administrative support to the Planning Commission.