The Marina del Rey Harbor is designated as impaired water body on the State’s 303(d) list due to high levels of copper in the water column. The leading contributor to copper in the water column is from boats with copper leaching antifouling hull paints. To address copper pollution, the Regional Water Quality Control Board (Regional Board) developed a Total Maximum Daily Load (TMDL) for dissolved copper in the Marina del Rey Harbor. A TMDL sets limits on how much pollutant can enter a water body. To enforce the copper TMDL, the Regional Board assigned load allocations for discharges of dissolved copper to the County, individual anchorages, and persons owning boats moored in the Marina. The State has the authority to implement these regulations through waste discharge requirements and other regulatory mechanisms if the copper loading in not reduced.
Two solutions the Regional Board has identified to reduce copper in the water column is to convert 85% of boats to non-copper based paints or to reduce the leaching of copper levels by 85% for 100% of the boats in the Marina del Rey Harbor. As part of its efforts to help the Marina del Rey Harbor comply with the water quality regulations, the County has developed a number of programs to help reduce copper loading from boats. These copper reduction programs are designed to provide opportunities for anchorages and boat owners to reduce their copper before the State requires enforcement of the regulations. One of the programs being offered in the Harbor is the Pilot Hull Paint Conversion Program that will provide a rebate to boaters who convert to a non-biocide paint.
For more information about the Rebate Program or the Copper TMDL, please visit the Department of Beaches and Harbors website at http://beaches.lacounty.gov/toxics-tmdl/ or contact:
Maral Tashjian
County of Los Angeles
Department of Beaches and Harbors
13837 Fiji Way
Marina del Rey, CA 90292
Office: (424) 526-7750
MTashjian@bh.lacounty.gov