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The Oregon Department of Environmental Quality uses water quality standards to assess whether the quality of Oregon's rivers and lakes is adequate for fish and other aquatic life, recreation, drinking, agriculture, industry and other uses. DEQ also uses the standards as regulatory tools to prevent pollution of the state's waters. The Clean Water Act requires states to adopt water quality standards designating beneficial uses of the state's waters and setting criteria designed to protect those uses. States submit their standards to the federal Environmental Protection Agency for approval. This feature contains a spatial representation of Oregon's Water Quality Standards.
This dataset delineates where the inwater work periods apply and includes attributes that describe the specific work period dates, the primary species of concern related to inwater work and also contact information.
Also associated with the inwater work areas are the background fish life stage timing "tables" that form the basis for the inwater work windows.
The guidelines are based on ODFW district fish biologists’ recommendations. Primary considerations were given to important fish species including anadromous and other game fish and threatened, endangered, or
sensitive species (coded list of species included in the guidelines). Time periods were established to avoid the vulnerable life stages of these fish including migration, spawning and rearing. The preferred work period applies to the listed streams, unlisted upstream tributaries, and associated reservoirs and lakes.
The Oregon Department of Environmental Quality uses water quality standards to assess whether the quality of Oregon's rivers and lakes is adequate for fish and other aquatic life, recreation, drinking, agriculture, industry and other uses. DEQ also uses the standards as regulatory tools to prevent pollution of the state's waters. The Clean Water Act requires states to adopt water quality standards designating beneficial uses of the state's waters and setting criteria designed to protect those uses. States submit their standards to the federal Environmental Protection Agency for approval. This feature contains a spatial representation of Oregon's Water Quality Standards.