TagWater Quality(478)

Academic article by Stanley V. Gregory, Frederick J. Swanson, W. Arthur McKee, and Kenneth W. Cummins published in BioScience Vol. 41 No. 8 (September 1991). Presents an ecosystem perspective of riparian zones as three-dimensional interfaces between terrestrial and aquatic ecosystems, focusing on geomorphic processes, valley floor landforms (floodplains, terraces, alluvial fans, active channels), terrestrial plant

A 1990 environmental assessment by Roy F. Weston Inc. evaluated soil and groundwater quality on an undeveloped Seattle property along the Duwamish Waterway, where Boeing was considering a 50-year lease with Seattle City Light. The study examined areas where dredged sediment from the Duwamish Waterway had been deposited in 1968 and 1985, testing for contaminants including PCBs, pentachlorophenols, PAHs, and metals. Prior sampling had found contaminant levels generally below state-regulated thresholds, and this baseline assessment was conducted to document existing conditions before any lease agreement was finalized.

This 1989 annotated bibliography from the Puget Sound Water Quality Authority catalogs agency publications related to Puget Sound water quality, covering topics such as nonpoint source pollution, shellfish safety, oil spills, and stormwater management. It lists reports, newsletters, and pamphlets from federal, state, and local agencies—including the EPA, Washington Department of Ecology, and various county departments—along with contact information for obtaining each document. The bibliography serves as a resource guide for researchers, planners, and community members concerned with environmental water quality issues in the Puget Sound region.

Army Corps of Engineers Regulatory Guidance Letter 87-03, dated April 14, 1987, clarifying requirements for Section 401 water quality certification under the Clean Water Act. Covers when certification or waiver is required before Federal permit issuance, the effect of state denial or court voidance before and after permit issuance, and the ‘reasonable period of time’

EPA-600/3-84-099, published October 1984 by the U.S. EPA Environmental Research Laboratory, Duluth, Minnesota. Authored by Anthony R. Carlson, William A. Brungs, Gary A. Chapman, and David J. Hansen from EPA Environmental Research Laboratories in Duluth MN, Narragansett RI, Corvallis OR, and Gulf Breeze FL. Provides protocols for deriving numerical aquatic site-specific water quality criteria by

EPA document EPA 440/5-84-031 establishing ambient water quality criteria for copper, published by the U.S. Environmental Protection Agency Office of Water Regulations and Standards, Washington D.C., pursuant to Section 304(a)(1) of the Clean Water Act of 1977 (P.L. 95-217). Authored by Robert W. Andrew (freshwater) and John H. Gentile (saltwater) at Environmental Research Laboratories in

This collection of historical documents from 1948 to 1957 chronicles ongoing water pollution problems caused by Sea-Tac Airport's drainage of aircraft wash water, oils, and chemicals into nearby Miller Creek and Des Moines Creek. The records show repeated fish kills, contamination of private property, and years of failed or inadequate treatment solutions, prompting complaints from residents, state legislators, and wildlife agencies. Despite numerous proposals and temporary fixes, the Washington State Pollution Control Commission continued to pressure the Port of Seattle to develop a permanent waste disposal system throughout the period.