Lake documents
King County, Washington

Newsletter archive
Lake Steward newsletters archived from 1998 to 2004.

Using the best available scientific information, the Lake Stewardship Program publishes reports, recommendations and management plans to better protect the water quality and ecosystem integrity of the small lakes in western King County.

King County lake monitoring reports

An annual report of King County lake data collected by volunteer monitors, including a section on climate and hydrology, nutrients, trophic state index and land use, and a presentation of water quality by individual lake. From 2005 onward, the reports discuss trends and conditions at all monitored lakes. Individual lake data can be viewed and downloaded online on the Lakes Descriptions and Data page.

• Introduction: What and Why We Monitor [485KB Acrobat file]
• 2006 Climate and Hydrology [97KB Acrobat file]
• 2006 Water Quality and Nutrients [160KB Acrobat file]
• 2006 Chlorophyll and TSI Ratings [67KB Acrobat file]
• 2004 Annual Report
• 2003 Annual Report
• 2002 Annual Report
• 2001 Annual Report [4.41MB Acrobat file]
• 2000 Annual Report [5.04MB Acrobat file]

Volunteer Lake Monitoring Manual
Describes the monitoring protocols to ensure volunteer-collected lake monitoring data meet quality-assurance and quality-control standards.

Cottage Lake

Cottage Lake Phosphorus reduction Project

Cottage Lake Aquatic Weed Management Fund Grant Final Project Report (Acrobat PDF, 7.13 Mb] 
Final report to Washington Dept. of Ecology describing the results of a grant project to eradicate acres of Eurasian milfoil or Myriophillum spicatum in Cottage Lake.

Lake Hicks

Lake Hicks Alum Treatment Project State Environmental Policy Act (SEPA) Environmental Checklist [PDF, 118KB]
This document outlines the potential environmental impacts of the proposed alum treatment.

Lake Hicks Alum Treatment Project SEPA Determination of Non-Significance (DNS) [PDF, 20KB]
A determination by King County that the proposed project will not have a significant environmental impact.

Pipe and Lucerne Lakes

King County is working to remove hydrilla, a Class A noxious weed, from Pipe and Lucerne Lakes, located in the cities of Maple Valley and Covington, Washington.  For surveys and annual reports describing our progress, please see the Pipe/Lucerne Hydrilla Eradication Project reports.

Lake Sawyer

Lake Sawyer Management Plan
Reports on the condition and water quality mechanisms affecting Lake Sawyer near Black Diamond and lays out long-term goals and a plan to maintain the quality of the lake.

Spring Lake

Spring Lake Aquatic Weed Management Fund Grant Final Project Report (Acrobat PDF, 18.4 Mb] 
Final report to Washington Dept. of Ecology describing the results of a grant project to eradicate and control four primary weeds: Myriophillum spicatum (Eurasian watermilfoil), Lythrum salicaria (purple loosestrife), Iris pseudacorus (yellow-flag iris) and Nymphaea odorata (fragrant waterlily), for in-water work (e.g. surveys), project reports, and education and outreach.

King County Regional Eurasian Milfoil Control Plan
[149KB Acrobat file]

Water Quality Trend Report
[2,023KB Acrobat file]

Reports are created in Adobe Acrobat format. Larger reports are listed by chapter, to reduce file size and improve usability. To purchase a printed copy of a report, please contact 206-296-6519, Toll-free 800-325-6165 or TTY 800-833-6388. To view the document price list, click here.

For questions about lake reports and lakes in King County, please contact Sally Abella, senior engineer, Lake Stewardship Program.