Publication Summary

Title

Diagnostic Study of Lake Sawyer, King County, Washington

Month-Year PublishedMarch 1991
Online Availability
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Short Description

The city of Black Diamond in King County presently operates a wastewater treatment plant (WTP) which discharges to a natural wetland. Discharge of effluent to the marsh was designed to utilize the natural processes in order to remove nutrients (nitrogen and phosphorus). The wetland drains into Rock Creek, which in turn discharges to Lake Sawyer. The WTP had been determined to have failed to meet design removals of phosphorus. Diversion of the WTP discharge from the Rock Creek system is currently planned.

Publication Number91-e05
Author(s)Carroll, J. and G. Pelletier
Print Availability
Request from the program.
Number of pages 151 + appendices (linked)
Keywords county, creek, discharge, effluent, lake, nitrogen, order, phosphorus, study, waste, wastewater treatment plant, water quality, wetland
Subject Waterbodies
Sawyer Lake
map of Washington state showing locations of subject waterbodies
Related Publications TitleRelationship    
Appendices A and B for: Diagnostic Study of Lake Sawyer, King County, Washingtonappendix
Appendices C and D for: Diagnostic Study of Lake Sawyer, King County, Washingtonappendix
Appendices E, F, and G for: Diagnostic Study of Lake Sawyer, King County, Washingtonappendix
Sawyer Lake Total Maximum Daily Load for Phosphorussimilar topic

This page last updated August 17, 2011