Stormwater Pollution Prevention (SWPPP) Manual

As required by the General Permit, the Stormwater Pollution Prevention Plan (SWPPP) Manual must be developed and implemented prior to any grading activities. Prior to issuance of a grading permit, owners of applicable construction sites must submit a draft SWPPP Manual to the Engineering Division for review and approval.

The SWPPP should contain a site map(s) which shows the construction site perimeter, existing and proposed buildings, lots, roadways, storm water collection and discharge points, general topography both before and after construction, and drainage patterns across the project. The SWPPP must list Best Management Practices (BMPs) the discharger will use to protect storm water runoff and the placement of those BMPs. Additionally, the SWPPP must contain a visual monitoring program; a chemical monitoring program for "non-visible" pollutants to be implemented if there is a failure of BMPs, and a sediment monitoring plan if the site discharges directly to a water body listed on the 303(d) list for sediment.

Elements Contained in the SWPPP
Section A of the Construction General Permit describes the elements that must be contained in a SWPPP.
The California Stormwater Quality Association (CASQA) has developed a SWPPP Manual template, which meets the current General Permit requirement's and is the official adopted SWPPP Manual format for the City of Morgan Hill. Also adopted by City are the CASQA Stormwater Best Management Practices (BMP) Handbooks for construction site BMP standards. The CASQA handbooks provide general guidance for selecting and implementing BMPs that help reduce or eliminate the discharge of pollutants from construction sites to waters of the state. The CASQA handbooks also provide guidance on developing and implementing SWPPPs that document the selection and implementation of BMPs for a particular construction project.

An annual fee, detailed information regarding the SWPPP Manual Template and CASQA BMP Handbook can be accessed directly online.

Illegal Dumping (Illicit Discharge) Report
To protect the water quality of our streams, creeks and public health, please report all illicit discharges by using this form or by calling Public Works Maintenance at 408-776-7333 (Monday - Thursday from 6:30 a.m. - 4:30 p.m. and Friday from 6:30 a.m. - 3:00 p.m.). During after hours, please leave a message with your name and phone number, where you can be reached, and a detail message regarding the illicit discharge.