Agricultural Water Quality Program

The County of San DIego Agricultural Water Quality Program (AWQ) helps to ensure that our waterways are protected by preventing pollutants from entering the County's storm draim system in compliance with our municipal Stormwater permit.

AWQ conducts outreach, inspections, and complaint investigations for commercial nurseries and greenhouse properties to reduce pollutants from entering streets and storm drains.






County Ordinance

In 2013, the San Diego Regional Water Quality Control Board adopted Order R9-2013-0001, which requires the County and other land use jurisdictions in the region to reduce the discharge of pollutants in local waterways.

County of San Diego Watershed Protection Ordinance


If you would like to report a stormwater violation, please call the County Stormwater hotline at:

1 (888) 846-0800

or e-mail us at

If you have questions about our program or would like additional information, please call:

1 (858) 614-7786

or e-mail us at



Department of Agriculture, Weights & Measures

Agricultural Water Quality Program

9325 Hazard Way, Suite 100, MS 01

San Diego, CA 92123, USA


Stormwater Training

Stormwater Training Record Form (pdf)

Stormwater Annual Review Guidelines and Form (pdf)

Pesticide BMP's

Stormwater - Nurseries & Greenhouses

       San Diego County Department of Public Works - Landscaping

        Reducing Nutrient Runoff in the Rainbow Creek Watershed

        Rainbow Creek Nutrient Reduction and Management Plan    

Farming Information

Sedimentation From Agricultural Operations (pdf)