Washington State Department of Ecology

Publication Summary

Title

Lake Water Quality Assessment Project, 1990

Month-Year Published

January 1993

Online Availability

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Short Description

The objectives of Ecology's lake water quality assessment project are to identify lakes that are exhibiting water quality problems, to assess significant publicly-owned lakes by estimating the trophic status of monitored lakes, and to promote public awareness of lake ecology and protection. In 1990, Ecology staff and 82 volunteers monitored 73 lakes throughout the state.

(Also see abstract below)

Publication Number

92-124

Author(s)

Rector, J. and D. Hallock

Print Availability

Request from the program.

Cost for Washington state residents is $12.00. Cost for non-residents is $12.00.

Number of pages

506 pp.

Keywords

chlorophyll, lake, nitrogen, phosphorus, secchi disk, trend, trophic status, volunteer monitoring, water, water quality

Subject Waterbodies

Lake Whatcom, Island Lake, Sacheen Lake, Liberty Lake, Newman Lake, Twin Lake, North, Black Lake, Deer Lake, Starvation Lake, Thomas Lake, Waitts Lake, Curlew Lake, Deep Lake, Davis Lake, Big Meadow Lake, Leo Lake, Big Lake, Samish, Martha Lake, Sunday Lake, Cranberry Lake, Goss Lake, Bosworth Lake, Flowing Lake, Panther Lake, Shoecraft Lake, Stevens Lake, Storm Lake, Killarney, Ohop Lake, St. Clair, Tanwax Lake, Whitman Lake, American Lake, Louise Lake, Spanaway Lake, Steilacoom Lake, Hicks Lake, Long Lake, Patterson, Ward Lake, Limerick Lake, Spencer Lake, Summit Lake, Kitsap Lake, Wooten Lake, Merwin Lake, Nahwatzel Lake, Horseshoe Lake, Lacamas Lake, Round Lake, Vancouver Lake, Williams Lake, Kahlotus Lake, Leech Lake, Cortez, Blue Lake, Wenatchee Lake, Chelan Lake, Aeneas Lake, Osoyoos Lake, Sidley Lake, Wannacut Lake, Eloika Lake, Mason Lake, Phillips Lake, Mission Lake

Abstract

Long Description

Volunteers measured Secchi disk transparency bi-monthly from May-October, and Ecology staff collected water samples (analyzed for total phosphorus and total nitrogen) and profile data during May and August. Ecology staff also conducted a conventional parameter water quality survey on 15 lakes.

This report presents results from the volunteer monitoring program, evaluates water quality trends and the relationships between volunteer-collected Secchi depth data with Ecology-collected phosphorus and chlorophyll a data, discusses water quality anomalies within ecoregions, and ranks the monitored lakes according to their need for eutrophication management. Individual lake assessments, which were written to summarize data for volunteers in the program, are compiled and included in this report.

Link to EIM data for User Study ID AMS002

This page last updated October 8, 2008