The San Diego Regional Water Quality Control Board approved a rescission of the waste discharge order for Camp Pendleton’s California Sewage Treatment Plant No. 9.

The 7-0 board vote May 13 eliminates the waste discharge requirements for the Las Pulgas plant which has been replaced.

The RWQCB initially issued a waste discharge order for the plant in 1998. The sewage has since been diverted to Camp Pendleton’s Southern Regional Tertiary Treatment Plant and Northern Regional Tertiary Treatment Plant, which supports the production of recycled water for landscape irrigation and seawater intrusion mitigation.

Between 1999 and 2012 the United States Marine Corps received 12 staff enforcement letters regarding California Sewage Treatment Plant No. 9 and three notices of violation for the waste discharge order. During that time 94 violations for deficient monitoring, overflow events, and exceeding the pH limit occurred. No violations took place during the final seven years of the California Sewage Treatment Plant No. 9 operation.