| Title (link to summary) |
Number |
Date (released or updated) |
| Inventory of Dams in the State of Washington | 94-016 | December 2011 |
| Focus on Water Availability: Upper Yakima Watershed, WRIA 39 | 11-11-043 | August 2011 |
| 2010 Report to the Legislature: Water Banking in Washington State | 11-11-072 | June 2011 |
| Focus on Environmental Monitoring: Environmental sampling in Middle Columbia River and Snake River regions | 11-03-031 | May 2011 |
| Frequently Asked Questions: Upper Kittitas Ground Water Rule | 10-11-021 | April 2011 |
| Proposed legislation for building a Water Smart Central Washington (OBSOLETE) | 11-11-003 | March 2011 |
| 2010 Report to the Legislature: Statewide Progress on Setting Instream Flows | 11-11-069 | March 2011 |
| Mercury Levels in Gold Mining Reaches on Seven Washington Rivers and Creeks | 11-03-003 | January 2011 |
| Concise Explanatory Statement: Chapter 173-539A WAC, Upper Kittitas Groundwater Rule | 10-11-029 | December 2010 |
| Final Cost Benefit and Least Burdensome Analyses: Chapter 173-539A Upper Kittitas Ground Water Rule | 10-11-033 | December 2010 |
| Revised Small Business Economic Impact Statement: Chapter 173-539A Water Resources Program for the Upper Kittitas Ground Water Rule | 10-11-034 | December 2010 |
| Upper Kittitas Groundwater Rule | WAC173-539A | December 2010 |
| Focus on Yakima Basin Water: Proposed Integrated Water Resource Management Plan | 10-12-005 | November 2010 |
| 2010 Report to the Legislature and Governor: Review of Water Resources Program Functions and Funding Structure--Recommendations for a Sustainable and Efficient Program | 10-11-022 | September 2010 |
| Rule Proposal Notice: Upper Kittitas Ground Water Rule, Chapter 173-539A WAC | 10-11-014 | June 2010 |
| Preliminary Cost Benefit and Least Burdensome Analyses for Chapter 173-539A WAC: Upper Kittitas Groundwater Rule | 10-11-015 | June 2010 |
| Small Business Economic Impact Statement Chapter 173-539A WAC
Water Resources Program for the Upper Kittitas Groundwater Area | 10-11-016 | June 2010 |
| An Assessment of Washington Lakes: National Lake Assessment Results | 10-03-029 | April 2010 |
| Yakima River Pesticides and PCBs Total Maximum Daily Load: Volume 1. Water Quality Study Findings | 10-03-018 | April 2010 |
| Cle Elum Dam Fish Passage Facilities and Fish Reindtroduction Project | 09-12-018 | January 2010 |
| An Assessment of the PCB and Dioxin Background in Washington Freshwater Fish, with Recommendations for Prioritizing 303(d) Listings | 10-03-007 | January 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: Water Banking in Washington State | 09-11-024 | November 2009 |
| Washington State Toxics Monitoring Program: Freshwater Fish Tissue Component, 2008 | 09-03-055 | November 2009 |
| Frequently Asked Questions: Yakima River Watershed Toxics Study:: Progress Update | 09-10-088 | November 2009 |
| Quality Assurance Project Plan: Potential Impacts from Mercury Used in Historic Gold Mining on Six Rivers and Streams | 09-03-123 | August 2009 |
| Frequently Asked Questions: Yakima Adjudication: Notice of Motion for Default Judgment | 09-11-022 | August 2009 |
| Final EIS, Yakima River Basin Integrated Water Resource Management Alternative | 09-12-009 | June 2009 |
| Yakima River Basin Suspended Sediment, Turbidity and Organochlorine Pesticide Total Maximum Daily Load Study: Water Quality Effectiveness Monitoring Report | 09-10-045 | May 2009 |
| Quality Assurance Project Plan: Suspended Sediment and Turbidity Total Maximum Daily Load Effectiveness-Monitoring Project in the Upper Yakima River Basin April to October 2006 | 09-10-034 | April 2009 |
| Emergency Rule Adoption Notice
Management of Exempt Ground Water Wells in Kittitas County, Chapter 173-539A WAC | 09-11-005 | March 2009 |
| Implementation Plan for the Adoption of Chapter 173-539A WAC, Management of Ground Water Wells in Kittitas County | 09-11-006 | March 2009 |
| Rule Proposal Notice: Upper Kittitas Ground Water (Chapter 173-539A WAC) | 09-11-001 | January 2009 |
| 2008 Report to the Legislature - Progress on Watershed Planning and Setting Instream Flows | 08-06-027 | December 2008 |
| Finding Water Supplies for the Columbia Basin | 08-11-031 | July 2008 |
| Math Classes for Treatment Plant Operators | 08-10-056 | July 2008 |
| Chlorinated Pesticides, PCBs, and Dioxins in Yakima River Fish in 2006: Data Summary and Comparison to Human Health Criteria | 07-03-036 | July 2007 |
| Quality Assurance Project Plan: Yakima River Chlorinated Pesticides, PCBs, Suspended Sediment, and Turbidity Total Maximum Daily Load Study. | 07-03-107 | July 2007 |
| Protecting Watersheds: Teanaway River Basin - Kittitas County | 07-10-032 | May 2007 |
| Focus on Water Temperature in the Upper Yakima River Basin | 07-10-008 | January 2007 |
| Wilson Creek Sub-basin Bacteria Total Maximum Daily Load Detailed Implementation Plan | 06-10-065 | December 2006 |
| Quality Assurance Project Plan: Chlorinated Pesticides, PCBs, and Dioxins in Yakima River Fish - 2006: Assessing Progress Toward TMDL Targets and Updating the Fish Consumption Advisory | 06-03-111 | September 2006 |
| Yakima River Watershed Toxics Study | 06-10-069 | September 2006 |
| Focus on Finding Water Use Solutions for Camps and Cabin Owners | 06-11-016 | July 2006 |
| Selah Ditch Multiparameter Total Maximum Daily Load: Water Quality Improvement Report | 06-10-040 | June 2006 |
| Focus Sheet: Water Right Relinquishment | 98-1812-WR | June 2006 |
| Progress on Watershed Planning and Setting Instream Flows | 05-11-038 | December 2005 |
| Focus on Wilson Creek Sub-basin Bacteria TMDL | 03-10-022 | December 2005 |
| Focus on Upper Yakima Basin - Restoration plan targets sediments | 01-10-003 | December 2005 |
| Focus on Teanaway Basin - A plan to improve stream temperatures | 01-10-020 | December 2005 |
| Wilson Creek Sub-Basin Bacteria Total Maximum Daily Load (Water Cleanup Plan): Submittal Report | 05-10-041 | June 2005 |
| Quality Assurance Project Plan: Upper Yakima Basin Temperature Total Maximum Daily Load Study | 05-03-111 | June 2005 |
| Selah Ditch Multiparameter Total Maximum Daily Load: Technical Assessment | 05-10-020 | February 2005 |
| 2004 Report to the Legislature: Water Banking in Washington | 04-11-030 | December 2004 |
| Upper Yakima River Basin Suspended Sediment, Turbidity and Organochlorine Pesticide Total Maximum Daily Load: Detailed Implementation Plan | 03-10-058 | December 2003 |
| Wenatchee National Forest Water Temperature Total Maximum Daily Load: Technical Report | 03-10-063 | November 2003 |
| Teanaway Temperature Total Maximum Daily Load: Detailed Implementation Plan | 03-10-025 | April 2003 |
| Washington Water Acquisition Program: Finding Water to Restore Streams | 03-11-005 | March 2003 |
| Concise Explanatory Statement and Responsiveness Summary for the Amendment of Chapter 173-170 WAC, Agricultural Water Supply Facilities | 03-11-008 | March 2003 |
| Finding water to restore streams: Introducing Washington's Water Acquisition Program | 02-11-007 | November 2002 |
| Upper Yakima River Basin Suspended Sediment, Turbidity and Organochlorine Pesticide Total Maximum Daily Load -- Submittal Report | 02-10-047 | August 2002 |
| A Summary of Water Quality Data Collected in the Wilson/Cherry Sub-basin, April - October 1999 | 02-03-038 | August 2002 |
| Data Summary: Upper Yakima River Basin Suspended Sediment and Organochlorine Pesticide TMDL Evaluation | 02-03-032 | July 2002 |
| Upper Yakima River Basin Suspended Sediment and Organochlorine Pesticide Total Maximum Daily Load Evaluation | 02-03-012 | April 2002 |
| Drought Response 2001: Report to the Legislature | 01-11-017 | December 2001 |
| River and Stream Ambient Monitoring Report for Water Year 2000 | 01-03-042 | December 2001 |
| Teanaway Temperature Total Maximum Daily Load Submittal Report | 01-10-019 | November 2001 |
| Flow Summary of Ten Streams and Irrigation Ditches in the Upper Yakima River Basin | 00-03-028 | August 2000 |
| Concentrations of 303(d) Listed Metals in the Upper Yakima River | 00-03-024 | June 2000 |
| Verifying 303(d) DDT/DDE and Dieldrin Listings for the Upper Yakima River | 00-03-023 | June 2000 |
| Teanaway River Basin Temperature Pilot Technical Assessment | 00-03-015 | April 2000 |
| Focus Sheet: Teanaway Temperature TMDL -- A plan to improve stream temperatures | 00-10-008 | February 2000 |
| Screening Level Investigation of Water and Sediment Quality of Creeks in Ten Eastern Washington Mining Districts, with Emphasis on Metals | 00-03-004 | January 2000 |
| River and Stream Ambient Monitoring Report for Water Year 1997 | 99-332 | August 1999 |
| Aquatic Plants Technical Assistance Program 1998 Activity Report | 99-328 | June 1999 |
| Biological Assessment of Small Streams in the Coast Range Ecoregion & the Yakima River Basin | 99-302 | 1999 |
| River and Stream Ambient Monitoring Report for Wateryear 1996 | 98-317 | June 1998 |
| Aquatic Plants Technical Assistance Program 1997 Activity Report | 98-311 | April 1998 |
| Washington State Pesticide Monitoring Program: 1995 Surface Water Sampling Report | 98-300 | 1998 |
| A Suspended Sediment and DDT Total Maximum Daily Load Evaluation Report for the Yakima River | 97-321 | July 1997 |
| River and Stream Ambient Monitoring Report for Wateryear 1995 | 96-355 | December 1996 |
| Watershed Briefing Paper for the Upper and Lower Yakima Watersheds | 96-336 | September 1996 |
| Aquatic Plants Technical Assistance Program 1995 Activity Report | 96-332 | July 1996 |
| Lake Water Quality Assessment Program, 1993 | 96-304 | 1996 |
| Metals Concentrations in Rivers and Streams Dropped from the 1994 Section 303(d) List | 95-352 | September 1995 |
| 1995 Ambient Biological Assessment Monitoring Implementation Plan | 95-343 | August 1995 |
| Aquatic Plants Technical Assistance 1994 Activity Report | 95-331 | June 1995 |
| City of Ellensburg Wastewater Treatment Plant Class II Inspection, April 1994 | 95-320 | April 1995 |
| 1994 Statewide Water Quality Assessment Lakes Chapter - Companion Document to WA State 305(b) | 95-311 | February 1995 |
| River and Stream Ambient Monitoring Report for Wateryear 1993 | 94-158 | September 1994 |
| Instream Biological Assessment Monitoring Protocols: Benthic Macroinvertebrates | 94-113 | June 1994 |
| Effectiveness of Forest Road and Timber Harvest Best Management Practices with Respect to Sediment-Related Water Quality Impacts, Interim Report No. 2 | 94-67 | May 1994 |
| Freshwater Ambient Monitoring Report for Wateryear 1992 | 94-70 | May 1994 |
| Freshwater Ambient Monitoring Report for Wateryear 1991 | 93-75 | September 1993 |
| Effectiveness of Forest Road and Timber Harvest Best Management Practices with Respect to Sediment-Related Water Quality Impacts, Interim Report No. 1 | 94-27 | June 1993 |
| Effectiveness of Forest Road and Timber Harvest Best Management Practices with Respect to Sediment-related Water Quality Impacts, Progress Report | 92-e55 | October 1992 |
| Timber/Fish/Wildlife Ecoregion Bioassessment Pilot Project | 92-63 | 1992 |
| Roslyn Post-Upgrade Wastewater Treatment Plant Limited Class II Inspection and Receiving Water Study on Crystal Creek | 91-e47 | 1991 |
| Water Quality Survey of 25 Citizen-Volunteer Lakes from Washington State | 90-e03 | March 1990 |
| Selah Wastewater Treatment Plant Receiving Water Survey, October 1988. | 90-e51 | 1990 |
| Selah Wastewater Treatment Plant Class II Inspection on October 25-26, 1988. Memo to Harold Porath October 17, 1989. | 89-e17 | October 1989 |
| City of Ellensburg Wastewater Treatment Plant Class II Inspection, August 1988. | 89-e44 | October 1989 |
| Snoqualmie Pass Wastewater Treatment Plant February 9-10, 1988 and March 2, 1988 Class II Inspection Report | 89-e19 | March 1989 |
| Persistence of DDT in the Yakima River Drainage, Washington. Article in Archives of Environmental Contamination and Toxicology 17, 289-297 (1988) | 88-e17 | 1988 |
| Roslyn Wastewater Lagoons and Crystal Creek Receiving Water Study--Findings. Memo to Chris Haynes and Harold Porath. | 85-e21 | October 1985 |
| Roza Irrigation District Ground Water Supply Study: Report for Yakima River Basin Water Enhancement Project | OFTR 85-01 | May 1985 |
| Class II Inspection at the Kittitas County Sewer District #1 Wastewater Treatment Plant, February 26-27, 1984. Memo to Al Bolinger and Harold Porath. | 84-e08 | June 1984 |
| Washington State Department of Ecology Sixth Biennial Report to the Legislature (1981 & 1982) | 83-11-002 | 1983 |
| Yakima River Basin Water Enhancement Project | 82-11-002 | December 1982 |
| Selah Sewage Treatment Plant Class II Inspection. Memo to Al Newman. | 81-e08 | August 1981 |
| 1981 Water Supply for the Yakima River Watershed | 81-11-005 | May 1981 |
| Wilson Creek Drainage Surface and Ground Water Quality. Project Report DOE 80-13. | 80-13 | November 1980 |
| Ronald and Roslyn STP Inspections and Receiving Water Surveys, May 23-24, 1978. Memo to John Hodgson. | 78-e00 | December 1978 |
| Hyak STP Class II Inspection. Memo to John Hodgson. | 78-e27 | March 1978 |
| Environmental Impact Statement - John Day/McNary Pools, Columbia River | 77-11-004 | December 1977 |
| Ellensburg STP Class II Inspection. Memo to Harold Porath. | 77-e19 | December 1977 |
| Ellensburg Area Low Flow Survey, October 18-20, 1977 | 77-e29 | December 1977 |
| Bellingham Bay Water Quality Survey | 77-e24 | June 1977 |
| A Check Point Report on the Okanogan Basin Investigation | 75-11-008 | October 1975 |
| Kittitas Municipal STP Efficiency Study. Memo to John Hodgson. | 75-e18 | April 1975 |
| Kittitas SD#1 (Hyak) Sewer District. Memo to John Hodgson. | 75-e22 | April 1975 |
| Agricultural Return Flow Management in the State of Washington - Summary Report | 75-11-009 | April 1975 |
| Selah STP. Memo to Dan Neal. | 72-e45 | May 1972 |
| Geology and Ground Water Availability, Selah Area, Washington | 71-11-007 | December 1971 |
