ABSTRACT
This chapter discusses the results of two separate water-quality assessment/modeling studies, along with a summary of the negotiations and regulatory rulemaking that resulted from the steady but intense deliberations among various representatives with vested interests in water resources and water-quality conditions in the watershed. It describes selective aspects of the technical assessments and modeling investigations as well as deliberations conducted relative to water-quality conditions in the Upper Clear Creek Watershed and Standley Lake. A narrative water-quality standard was adopted by the Colorado Water Quality Control Commission: the agreement has the needs of the state for certain conceptual water-quality goals, for watershed and in-lake management plans, and a directed continuing watershed and in-lake monitoring program. Additional point source and stream data from the watershed is required to determine the point and nonpoint source contributions which can reach the lake. The Upper Clear Creek Watershed Association desired to assess with the modeling application the effectiveness of its nutrient-control measures.
