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Stormwater Management
The City of San José is responsible for ensuring compliance with Federal and State laws that regulate how stormwater runoff is managed prior to its entry to the storm drain system, streams, rivers and/or the San Francisco Bay. Specifically, the City operates under the Regional Water Quality Control Board’s Municipal Regional Stormwater NPDES Permit (MRP). Provision C.3 of the MRP requires new and redevelopment projects to include appropriate measures to treat urban runoff and to prevent increases in runoff flows.

The City implements the Provision C.3 through City Council Policy 6-29: Post-Construction Urban Runoff Management and City Council Policy 8-14: Post Construction Hydromodification Management. These policies apply to Regulated Projects and emphasize the use of Low Impact Development measures in line with the Provision C.3.

C.3 Stormwater Handbook

The C.3 Stormwater Handbook has been developed to assist project applicants, developers and builders to create projects with stormwater control plans that include appropriate post-construction site design, source control and treatment control measures that meet City of San José requirements and the requirements of the MRP. When using this program-wide handbook keep in mind that some requirements may vary from one local jurisdiction to the next, as they were written for all jurisdictions in Santa Clara County. Contact your planning project manager if you have any questions about how these requirements will apply to your project. In the case of conflicting information between this handbook and the MRP, the MRP requirements prevail.

Learn More about Stormwater Management
Explore the stormwater pages to learn more about application requirements, what projects constitute as Regulated and Special Projects, Low Impact Development, and Land Uses of Concern.