Publication Summary

Title

Water Quality Data Compilation and TMDL Ranking for the San Juan Islands

Month-Year PublishedOctober 1999
Online Availability
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Short Description

Available water quality data collected within the last 10 years were compiled for the three largest of the San Juan Islands: Orcas, San Juan, and Lopez. The three study area islands were divided into 25 embayment watersheds using GIS software and digital elevation data. A ranking matrix was developed for future TMDLs in embayment watersheds, based on nine indicators of watershed condition and risk to public and aquatic health. The top five embayment watersheds from the ranking, in priority order, are East Sound, Buck Bay, Friday Harbor, Westcott Bay, and West Sound.

Publication Number99-339
Author(s)Coots, R.
Print Availability
Request from the program.
Number of pages 70 pp.
Keywords order, quality, ranking, San Juan Islands, study, TMDL, water, water quality
Subject Waterbodies
Unnamed Creek,
False Bay Creek,
San Juan Channel,
West Sound,
Harney Channel,
& Lopez Sound,
East Sound,
Cascade Lake,
Hummel Lake,
Mountain Lake,
Sportsman Lake
map of Washington state showing locations of subject waterbodies

This page last updated December 8, 2008