"BOD" means Biochemical Oxygen Demand.

"DOE" means Washington State Department of Ecology.

"DOH" means Washington State Department of Health.

"GPD" means gallons per day.

"mg/l" means milligrams per liter.

"OSS" means On-Site Sewage System.

"PCC" means Pierce County Code.

"RCW" means Revised Code of Washington.

"RE" means Residential Equivalent.

"TPCHD" means Tacoma Pierce County Health Department.

"TSS" means Total Suspended Solids.

"ULID" means Utility Local Improvement District.

"USP" means Unified Sewer Plan.

"WAC" means Washington Administrative Code.

"WWTP" means Wastewater Treatment Plant.