Horse and livestock wastes are among the many common stormwater pollutants that can degrade water quality. Stormwater runoff from livestock waste has been found to contain high concentrations of pathogens such as bacteria, parasites, and viruses. When they wash into our recreational waters they can make people sick with sore throats, intestinal problems, rashes, nausea, and eye and ear infections. Manure also contains nutrients such as phosphorus and nitrogen, that fertilize aquatic algae blooms and promote bacterial growth which can degrade water quality.
Your Regulatory Requirements - County of San Diego, Stormwater Ordinance
What can I do?
Use Best Management Practices (BMPs)!
BMPs are techniques or controls used to prevent or reduce the discharge of pollutants, such as livestock wastes, into the stormwater conveyance system also known as the storm drain system.
Helpful Information and Documents:
Equine BMP Non-technical Guidance
Equine BMP Implementation Technical Guidance
Horse and livestock Manure Video
General Stormwater BMP Brochure
Horse and Livestock brochure
CASQA BMP Handbooks
Pollutant Impacts on Water Quality
San Diego County Wastewater Agencies
Tip: Store manure away from drainage areas.
If you have questions or would like additional information,
Report a Stormwater Violation On-Line