The council recognizes its authority and responsibility to plan and provide for control of sewerage, surface water, and water quality. The council finds that phosphorus loading of surface waters is currently a serious pollution problem affecting water quality in the Yamhill River and threatens future water quality in other surface waters of the region. Phosphate detergents contribute significant phosphorus loading to the treated wastewater released to surface water into the Yamhill River. Phosphorus loading has become a pollution problem, and state standards will require additional wastewater treatment facilities at public expense beyond primary and secondary treatment facilities. This chapter is enacted to reduce phosphorus pollution at its source, maintain existing water quality, and to enhance cost-effective wastewater treatment where phosphorus pollution has been identified as a serious pollution problem by the state of Oregon Environmental Quality Commission. (Ord. 4488 §1(A), 1991).