| Title (link to summary) |
Number |
Date (released or updated) |
| Inventory of Dams in the State of Washington | 94-016 | December 2011 |
| Lake Chelan Wapato Basin Total Phosphorus Total Maximum Daily Load: Water Quality
Effectiveness Monitoring Report | 11-03-049 | November 2011 |
| Focus on Water Availability: Chelan Watershed, WRIA 47 | 11-11-051 | August 2011 |
| Focus on Fish Testing: Fish Testing Planned for Lake Chelan and Wenatchee River in 2010 | 10-03-033 | May 2010 |
| An Assessment of Washington Lakes: National Lake Assessment Results | 10-03-029 | April 2010 |
| 2009 Report to the Legislature: Watershed Plan Implementation Statutory Changes, Progress Report on Setting Instream Flows, and Reclaimed Water in Adopted Plans | 09-11-033 | January 2010 |
| 2008 Report to the Legislature - Progress on Watershed Planning and Setting Instream Flows | 08-06-027 | December 2008 |
| Lake Chelan DDT and PCB TMDL: Water Quality Implementation Plan | 08-10-048 | August 2008 |
| Quality Assurance Project Plan: Lake Chelan Wapato Basin Total Phosphorus TMDL Effectiveness Monitoring, 2007 | 07-03-109 | August 2007 |
| Washington State Toxics Monitoring Program: Contaminants in Fish Tissue from Freshwater Environments in 2004 and 2005 | 07-03-024 | June 2007 |
| Washington State Toxics Monitoring Program: Toxic Contaminants in Fish Tissue and Surface Water in Freshwater Environments, 2003 | 06-03-019 | May 2006 |
| Lake Chelan Watershed DDT and PCB Total Maximum Daily Load: Water Quality Improvement Report | 06-10-022 | April 2006 |
| Progress on Watershed Planning and Setting Instream Flows | 05-11-038 | December 2005 |
| Lake Chelan DDT and PCBs in Fish Total Maximum Daily Load Study | 05-03-014 | June 2005 |
| Quality Assurance Project Plan: Total Maximum Daily Load Study for DDT and PCBs in Lake Chelan | 03-03-105 | July 2003 |
| Lake Chelan DDT/PCB Watershed Cleanup Plan | 03-10-035 | May 2003 |
| Water Quality Assessments of Selected Lakes within Washington State: 1997 | 00-03-009 | March 2000 |
| Lake Chelan TMDL- A Plan for Keeping it Clean | 98-2017-WQ | July 1998 |
| Aquatic Plants Technical Assistance Program 1997 Activity Report | 98-311 | April 1998 |
| Water Quality in the Wapato Basin of Lake Chelan, Summer 1996 | 97-323 | August 1997 |
| Effects of Holden Mine on the Water, Sediments, and Benthic Invertebrates at Railroad Creek (Lake Chelan) | 97-330 | July 1997 |
| Protocol for Determining the Mean Epilimnetic Total Phosphorus Concentration in the Wapato Basin of Lake Chelan | 97-317 | April 1997 |
| Washington State Pesticide Monitoring Program: 1994 Fish Tissue and Sediment Sampling Report | 96-352 | December 1996 |
| Aquatic Plants Technical Assistance Program 1995 Activity Report | 96-332 | July 1996 |
| Washington State Pesticide Monitoring Program: 1994 Surface Water Sampling Report | 96-305 | February 1996 |
| Watershed Briefing Paper for the Wenatchee Basin Water Resource Inventory Area | 95-348 | September 1995 |
| River and Stream Ambient Monitoring Report for Wateryear 1994 | 95-349 | September 1995 |
| Aquatic Plants Technical Assistance Implementation Plan - 1995 Field Season | 95-334 | July 1995 |
| Protocols for Determining the Mean Epilimnetic Total Phosphorus Concentration and Secchi Disc Depth in the Wapato Basin of Lake Chelan | 95-e16 | May 1995 |
| 1994 Statewide Water Quality Assessment Lakes Chapter - Companion Document to WA State 305(b) | 95-311 | February 1995 |
| Chelan Watershed Initial Assessment | 95-013 | 1995 |
| Chelan Watershed Assessment Summary | 95-161 | 1995 |
| Freshwater Ambient Monitoring Report for Wateryear 1991 | 93-75 | September 1993 |
| Chelan Lake Total Phosphorus Total Maximum Daily Load (TMDL) | 93-10-204 | January 1993 |
| Lake Water Quality Assessment Project, 1990 | 92-124 | 1993 |
| Lake Chelan Total Maximum Daily Load for Total Phosphorus (Memorandum) | 91-e50 | April 1991 |
| Lake Chelan Water Quality Assessment. Prepared by Harper-Owes. | 89-e36 | 1989 |
| Lake Chelan Water Quality Assessment, Executive Summary. Prepared by Harper-Owes | 89-e37 | 1989 |
| Morphometry of Lake Chelan. | 87-1 | 1987 |
| Shoreline Survey and Source Inventory of Wapato Basin, Lake Chelan. | 86-e29 | July 1986 |
| Basic Water Monitoring Program: Fish Tissue and Sediment Sampling for 1984. | 85-7 | November 1985 |
| Lake Chelan Project Proposal. | 85-e09 | February 1985 |
| Chelan Sewage Treatment Plant (STP) Class II Inspection (July 26-27, 1983) and Receiving Water Survey (July 27, 1983 and October 26, 1983). Memo to Harold Porath and John Hodgson. | 84-e09 | March 1984 |
| Lake Chelan "208" Water Quality Study Data Review. Letter from R.W. Beck and Assoc., Seattle, WA to Charles Carelli. | 82-e12 | June 1982 |
| Results of One Day Survey of Lake Chelan. Memo to Dick Cunningham. | 82-e04 | May 1982 |
| Review of Lake Chelan Water Quality Study Proposal. Memo to John Bernhardt. | 80-e14 | October 1980 |
| Wapato Lake - Pesticide Levels, Sediment Bioassays, and Abundance of Benthic Invertebrates. Memo to M. Linden and B. Barwin, Central Regional Office. | 97-e05 | July 1977 |
| The Water Resources of the Chelan Basin | OFTR 75-03 | June 1975 |
| Inventory and Reconnaissance of Irrigation Districts in the State of Washington | 74-11-003 | August 1974 |
| Chelan STP. Memo to Tom Haggerty. | 72-e24 | September 1972 |
| The Effects of the Holden Mine Tailings upon the Aquatic Insect Fauna of Railroad Creek, a Tributary to Lake Chelan. Technical Report No. 67091. | 67-e00 | October 1967 |
