Welcome to the Stanislaus County Storm Water Pollution Prevention Program
- Frequently Asked Questions
Learn about Storm Water Pollution and how to prevent it. - Storm Water Permit Requirement FAQs
Learn about Storm Water Permit Requirements. - Glossary of Terms & Acronyms
Learn about the Storm Water Pollution and Prevention Glossary of Terms and Acronyms. - Stormwater Pollution Prevention Methods
Methods for handling Storm Water in different situations.
- NPDES Map Stanislaus County
- NPDES Post Construction Flowchart
- 2015 Post Construction Standards
- 2010-0014 DWQ State Water Resources Control Board Construction General Permit
- 2013-0001 DWQ Small MS4 Phase II Permit
- Construction Inspection Frequency
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STORMWATER DESIGN & SUBMITTAL REQUIREMENTS FOR |
EXEMPT PROJECTS Less than 2,500 ft2 |
SMALL PROJECTS Between 2,500 and 4,999 ft2 |
REGULATED PROJECTS Greater than 5,000 ft2 |
CONSTRUCTION GENERAL PERMIT REQUIRED REGULATED PROJECTS 1 Acre or more of soil disturbance or impervious surface added |
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X |
X |
X |
(SWPPP) |
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X |
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X |
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X |
X |
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X |
X |
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Statement of Responsibility and Operation & Maintenance Agreement |
X |
X |
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Hydromodification Calculations |
X |
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Copy of Storm Water Pollution Prevention Plan (SWPPP) with State Water Board Waste Discharge Identification Number (WDID Number) |
X |
Public Participation Opportunities
Tuolumne River Trust
An environmental nonprofit representing the Tuolumne River from its headwaters in the Sierra Nevada, through the Central Valley, and all the way to San Francisco Bay.
Operation 9-2-99
Information regarding the ongoing clean-up effort along the Tuolumne River in Modesto between the 9th Street bridge and the 99 Freeway.
Dry Creek Trails Coalition
Our mission is to preserve, protect, and safeguard the Dry Creek Regional Park Trails for all trail users to enjoy. You are now a part of the solution!
