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Department of Agriculture, Weights, and Measures - Water Quality
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Stormwater - Landscaping

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Landscaped yardFertilizers, herbicides, pesticides, and organic wastes are among the many common stormwater pollutants that can degrade water quality.  Stormwater runoff from landscaping activities has been found to contain high concentrations of organic wastes, fertilizers, pesticides, herbicides, and soil that can leave a property that you work.  When these materials wash into local waters they poison fish and contaminate the water.  Soil and dirt washed from the grounds can also harm aquatic life by clogging the gills of fish, blocking light transmission, lowering water temperatures, and inhibiting photosynthesis.  Organics, such as grass clippings and leaves, can cause algae blooms and bacteria growth which degrades 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 fertilizers and herbicidies, into the stormwater conveyance system also known as the storm drain system.

Helpful Information and Documents:
General Stormwater BMP Brochure
Pollutant Impacts on Water Quality
San Diego County Wastewater Agencies
CASQA BMP Handbooks

Tips: Avoid over watering after fertilizer application.
          Use less-toxic alternatives.


Back to Main Watersheds Topics and Activities Home Page

If you have questions or would like additional information, 
call the County Stormwater hotline at 1(888) 846-0800
or e-mail us at watersheds@sdcounty.ca.gov

Report a Stormwater Violation On-Line
 
COUNTY OF SAN DIEGO
Department of Public Works
Watershed Protection Program
 
5510 Overland Ave., Suite 410, MS O326
San Diego,  CA  92123,  USA
(858) 495-5318           Fax: (858) 495-5263