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Solid Resources Processing & Construction Division
City of Los Angeles - Bureau of Sanitation

Griffith Park Compost - Section


 


Seal of Testing Assurance

Griffith Park Composting Facility (GPCF)

5400 Griffith Park Drive,
Los Angeles, CA 90027


Biosolids/Zoo Manure/Green Trimmings/Wood (TOPGRO®)

Directions for Compost Mix Suggested Use:

1st year — Cultivate one inch of compost into the top six to eight inches of soil.
2nd to 4th year — Cultivate 1/2 inch of compost into a depth of 3-4 inches.
5th year — Re-apply at the original rates (1st year and 2nd to 4th years).

  • As the organic content builds in a garden soil, the application rate should be reduced.
  • 3 yd3 covers 1,000 ft2 approximately 1 inch deep.
  • Compost needs to be thoroughly mixed. Do not leave compost in chunks, as this will interfere with root growth and soil water movement.
  • It is recommended that you test your soil yearly to monitor the specific needs of your soil and to detect potential accumulation of salts when using any biosolids containing compost over a long period of time.

This compost product has been sampled and tested as required by the Seal of Testing Assurance Program of the United States Composting Council (USCC). Test results are available upon request by calling Robert Buenrostro at (818) 834-5140. The USCC makes no warranties regarding this product or its contents, quality, or suitability for any particular use.

For additional information pertaining to compost use, the specific compost parameters tested for within the Seal of Testing Assurance Program, or the Program in general, log on to the US Composting Council's web-site www.compostingcouncil.org.