Development Activities
Operators of construction sites on one-acre or larger, including smaller sites part of a larger common plan of development, are monitored under the State’s Construction General Permit. The Stormwater Program also requires specific control measures for post-construction runoff from new developments and redeveloped areas.
The 2020 Stormwater Quality Control Criteria Plan (SWQCCP) provides development standards for managing stormwater runoff for Priority Land Uses (PLU) and Priority Projects. Projects subject to the 2022 California Green Building Standards Code (CALGreen) may require stricter standards in comparison with the SWQCCP.
Priority Land Uses (PLU):
- High-density residential – All land uses with at least 10 developed dwelling units per acre
- Industrial – Land uses where the primary activities on the developed parcels involve product manufacture, storage, or distribution (e.g., manufacturing businesses, warehouses, equipment storage lots, junkyards, wholesale businesses, distribution centers, or building material sales yards)
- Commercial – Land uses where the primary activities on the developed parcels involve the sale or transfer of goods or services to consumers (e.g., business or professional buildings, shops, restaurants, theaters, vehicle repair shops, etc.)
- Mixed urban – Land uses where high-density residential, industrial, and/or commercial land uses predominate collectively (i.e., are intermixed)
- Public transportation stations – Facilities or sites where public transit agencies’ vehicles load or unload passengers or goods (e.g., bus stations and stops)
Priority Projects:
- Residential subdivision of 10 housing units
- Commercial and industrial developments greater than or equal to 5,000 square feet
- Parking lots 5,000 square feet or more or with 25 or more parking spaces and potentially exposed to urban runoff
- Significant redevelopment – Significant redevelopment is defined as the creation or addition of at least 5,000 square feet of impervious surfaces on an already developed site
Stormwater Quality Control Criteria Plan
The following documents are required for new development and significant redevelopment projects subject to the 202 Stormwater Quality Control Criteria Plan (SWQCCP).
- 2020 SWQCCP Treatment Device Access and Maintenance Agreement form.
- Stormwater Volume Reduction Requirement calculator.
- Stormwater Quality Control Plan form.
- Stormwater Maintenance Plan form.
- Frequently Asked Questions
Construction Stormwater Regulations and Best Management Practices
Overview of Federal, State, and local stormwater regulations
Flyer of BMPS that may be implemented on construction sites
External Links
Stormwater Quality Control Criteria Plan - Virtual workshop presented by the San Joaquin County Department of Public Works and City of Stockton to brief developers, planners, and engineers.
San Joaquin County Flood Control & Water Conservation District Stormwater Program
California Green Building Standards Code (CALGreen) - first-in-the-nation mandatory green building standards code developed by the California Building Standards Commission.
This City of Stockton web page last reviewed on --- 6/12/2023