Septic Installer Test For Washington State (WOSSA) Practice Exam Complete Questions With Complete Solutions| Already Graded A+| Newest 2025!

Septic Installer Test For Washington State (WOSSA) Practice Exam Complete Questions With Complete Solutions| Already Graded A+| Newest 2025! ANSI American National Standards Institute BOD biochemical oxygen demand, typically expressed in mg/L. CBOD Carbonaceous Biochemical Oxygen Demand, expressed in mg/L. FC Fecal Coliform, expressed in number of colonies 100/ml. LOSS large on-site sewage system NSF Nation Sanitation Foundation International O&GOils and Grease, component of sewage typically originating from food stuffs (animal fats of vegetable oils) expressed in mg/L. RS&G Recommended Standards and Guidance SSAS a subsurface soil absorption system TAC Technical Advisory Committee established in WAC 247-272A-0400 TN Total Nitrogen, expressed in mg/L. TSS Total Suspended Solids. A measure of the total suspended solids in a given solution, expressed in mg/L. USEPA United States Environmental Protection Agency Additivea commercial product added to an on-site sewage system intended to affect the performance or aesthetics of an on-site sewage system Approved Acceptable to the authority having jurisdiction. Local health officer or the department BED a soil dispersal component consisting of an excavation with a width greater than 3 feet Building Sewer that part of the horizontal piping of a drainage system which starts from the end of the building drain and which receives the discharge of the building drain and conveys it to a public sewer, private sewer, individual sewage disposal system or other point of disposal. It begins two feet outside the building wall and conveys sewage from the building drain to the remaining portions of the on-site sewage system. Cesspoola covered hole or pit for receiving drainage or sewage, as from a house allowing liquid to seep into the surronding rock or soil Conforming System an on-site sewage system of component meeting rules of: New construction requirements Approved and installed within previous requirements Permitted by WAC-246-272A-0420 Cover Material Soil placed over dispersal component, made up of mineral material with no greater than 10% organic content. Cover may contain organic surface material, an organic landscaper to help reduce and contain soil erosion