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You can have an impact on the environment. Every action you take to minimize pollution by keeping your car in tune, driving less, limiting your usage of toxic chemicals around the house and garden helps to keep the San Mateo County enviroment safte for all. We want to help you by connecting you to resources that educate and enlighten about things you can do to make a difference.

There are many resources available to the public and businesses about stormwater pollution prevention. For best management practices check the business pollution prevention page. This area contains many brochures with practices that protect water quality in San Mateo County and help with stormwater regulation compliance. Click on one of the links above to explore other relevant stormwater pollution prevention topics.

View 2004-2009 Stormwater Management Plan for San Mateo Countywide SMCWPPP's NPDES permit application.

Annual Reports
2003-2004 Exectuive Summary
2004-2005 Executive Summary
2005-2006 Annual Report
2006-2007 Annual Report

Annual Program Highlights
2006-2007 Fact Sheet of SMCWPPP's Successes
2006-2007 Fact Sheet of SMCWPPP's Successes (11"x17" print quality version)

San Mateo Countywide Municipal Stormwater Permit
NPDES Permit CAS0029921, Order 99-059
Order R2-2003-0023 Amending Order 99-059 (C.3 Provisions)
Order R2-2007-0027 Amending Order 99-059 (Hydromodification Provisions)
NewTentative order R2-2008-xxxx, NPDES Permit CAS612008

Stormwater Requirements for New Development/Redevelopment
Stormwater Quality Requirements for Developers, Builders and Project Applicants [pdf]
Stormwater Detention Requirements for Developers, Builders and Project Applicants [pdf]
Operation and Maintenance Information for Stormwater Treatment Measures-Updated Nov2007[word]
NPDES Permit Impervious Surface Data Collection Worksheet-Updated November 2007 [word]
Checklist for NPDES Permit Requirements- Updated November 2007[word]

C3 New Development Handbook for municipal staff [14,692 KB]
C.3 Stormwater Technical Guidance for project applicants [47,924 KB]
HYDROMODIFICATION MANAGEMENT PLAN (HMP) [pdf]
Map of Areas Exempt from Hydromodification Management Requirements [643 KB]
Link for downloading the Bay Area Hydrology Model software and users manual

Treatment Control Design Guidance for Mosquito Control[pdf]
Treatment Control Operation & Maintenance Guidance for Mosquito Control [pdf]
Source Control Model List [word]
NewSoil Guidelines for Stormwater Treatment Measures [pdf]


Watershed Imperviousness and Creek Modifications Report
NewCharacterization of Imperviousness and Creek Channel Modifications for Seventeen Watersheds in San Mateo County [105,401 KB]
New San Mateo County Watershed Maps (2002 report: Figures 1-20)[106,967KB]

 

 
     
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