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Agricultural Water Quality

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The County Department of Agriculture, Weights and Measures regulates agricultural facilities that are designated as high priority commercial facilities. These include:

Nurseries and Greenhouses

Agricultural Pest Control Businesses

Structural Pest Control Businesses

Golf Courses


*Horse Facilities

*Effective July 1, 2009, all commercial horse facilities in the Agricultural Water Quality Program have been incorporated into the Department of Public Works’ Watershed Protection Program.  For more information, please call the Stormwater Hotline Number at 1-888-846-0800 or visit the Watershed Protection Program Home Page at the following link:  Thank you.”

 County Ordinance

In 2007, the San Diego Regional Water Quality Control Board adopted Order R9-2007-0001, which requires the County and other land use jurisdictions in the region to reduce the discharge of pollutants in local waterways.

Watershed Protection, Stormwater Management, & Discharge Control Ordinance

County of San Diego Stormwater Standards Manual 


Stormwater Training

Stormwater Training Manual (pdf)

Entrenamiento sobre el Agua de Lluvia (pdf)

Stormwater Training Record Form (pdf)

Stormwater Annual Review Guidelines and Form (pdf)

Horse Facility Information

Stormwater - Nurseries & Greenhouses

Farming Information

Ag Water Quality Informational Pamphlet (pdf)

Sedimentation From Agricultural Operations (pdf)

La Sedimentacion las Operaciones Agricolas (pdf)


Registration Form for Agriculture Water Quality (pdf)

Return to Compliance Form (pdf)

Water Quality Compliance Inspection Form (pdf)