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EXH AR025289: Five-Year Project RP — Des Moines Water Quality Monitoring Program

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This February 2001 report by Herrera Environmental Consultants presents a five-year summary of water quality monitoring conducted for the City of Des Moines, Washington, covering three creek basins: Des Moines Creek, Massey Creek, and North Fork McSorley Creek. The report examines a range of water quality parameters including temperature, pH, dissolved oxygen, metals, nutrients, turbidity, and fecal coliform bacteria, as well as benthic invertebrate conditions as indicators of stream health. It was prepared for the City's Surface Water Management Utility and provides data intended to inform stormwater and surface water management decisions in the Des Moines area near Sea-Tac Airport.

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Five-Year Project Report on the City of Des Moines Water Quality Monitoring Program, prepared by Herrera Environmental Consultants (Seattle, WA) for the City of Des Moines Surface Water Management Utility (805 South 219th Street, Des Moines, Washington 98198-6317), dated February 21, 2001. AR 025289/025290. Report covers water quality and habitat quality monitoring results for Des Moines Creek Basin, Massey Creek Basin, and North Fork McSorley Creek Basin. Parameters analyzed include temperature, pH, dissolved oxygen, conductivity, hardness, turbidity, total suspended solids, nutrients, metals, total petroleum hydrocarbons (TPH), and fecal coliform bacteria. Also includes hydrologic results, pollutant source tracking, and benthic invertebrate monitoring using Total Erosional Habitat Index (TEHI). Filed in PCHB Third Runway EIS administrative record.

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