Washington State Department of Ecology

Publication Summary

Title

River and Stream Ambient Monitoring Report for Wateryear 1994

Month-Year Published

September 1995

Online Availability

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Short Description

The Washington State Department of Ecology collected monthly water quality information at 79 river and stream monitoring stations during Wateryear (WY) 1994 (October 1, 1993 through September 30, 1994). The primary goals of this ongoing monitoring program are to characterize the rivers and streams of Washington State and to track changes in water quality.

(Also see abstract below)

Publication Number

95-349

Author(s)

Hallock, D.

Print Availability

Request from the program.

Number of pages

296 pp.

Keywords

ambient monitoring, bacteria, dissolved oxygen, fecal coliform, flow, goals, monitoring, pH, Puget Sound, report , river, stream, temperature, water, Water Quality

Subject Waterbodies

Chimacum Creek, Okanogan River, Whatcom Creek, Dungeness River, Elwha River, Soleduck River, Hoh River, Queets River, Quinault River, Hoquiam River, Chehalis River, Cowlitz River, Klickitat River, Little Klickitat River, Walla Walla River, Snake River, Lake Sacajewea, Palouse River, Snake River, Yakima River, Sulphur Creek Wasteway, Crab Creek, Wenatchee River, Entiat River, Chelan River, Methow River, Similkameen River, Spokane River, Little Spokane River, Deadman Creek, Dragoon Creek, Colville River, Kettle River, Pend Oreille River, Franklin D. Roosevelt Lake, Columbia River, Nooksack River, Skagit River, Stillaguamish River, Snohomish River, Sammamish River, Issaquah Creek, Cedar River, Lake Union, Lake Washington Ship Canal, Springbrook, Green River, Hill, Des Moines Creek, Puyallup River, Nisqually River, Goldsborough Creek, Skokomish River, Finch Creek, Hamma Hamma River, Dosewallips River, Duckabush River, Big Quilcene River

Abstract

Long Description

Water quality for WY 1994 was average relative to previous years with about an average number of exceedences of Washington's water quality criteria. The fecal coliform bacteria geometric mean was the most frequently violated criteria based on individual samples. Excluding floating stations, 103 samples exceeded the geometric mean criteria, and 51 samples exceeded the "10 percent not to exceed" criteria out of nearly 800 samples collected; 32 of 66 stations had at least one sample that exceeded the geometric mean criteria. Twenty-one of the 32 stations were west of the Cascades and 18 were stations on streams that drain to Puget Sound. Temperature standards were violated 70 times at 37 stations on both sides of the Cascades. Dissolved oxygen and pH standards were violated 38 and 30 times, respectively, both at 14 stations. With a few exceptions, median monthly stream flows in WY 1994 at the time of sampling were below or near normal.

Link to EIM data for User Study ID AMS001D

This page last updated August 14, 2008