| Title (link to summary) |
Number |
Date (released or updated) |
| Quality Assurance Project Plan: High-resolution, Pore-water Sampling Near the Groundwater/Surface Water Interface | 08-03-115 | September 2008 |
| Addendum to the Quality Assurance Project Plan: Type N Experimental Buffer Treatment Study: Addressing Buffer Effectiveness on Riparian Inputs, Water Quality, and Exports to Fish-Bearing Waters in Basaltic Lithologies | 07-03-103ADD1 | June 2008 |
| Palermo Wellfield Superfund Site Subdrain System and Treatment Lagoon, Status Report, November 2006 and June 2007 | 07-03-044 | September 2007 |
| Shelton Laundry and Cleaners, August 2006 through May 2007 Groundwater Monitoring Results | 07-03-045 | September 2007 |
| Changes to future ground water use in the Walla Walla Basin: What builders, real estate agents and home owners need to know | 07-11-033 | August 2007 |
| Frequently Asked Questions: The amended Walla Walla (WRIA 32) Water Resources Program rule, Chapter 173-532 WAC | 07-11-035 | August 2007 |
| Mitigation Guide for Outdoor Water Use in the Walla Walla Basin | 07-11-032 | August 2007 |
| Ambient Groundwater Quality in the Moxee Valley Surficial Aquifer, Yakima County, January-June 2006 | 07-03-023 | May 2007 |
| Hydrogeologic Framework and Water Budget of the Spokane Valley-Rathdrum Prairie Aquifer, Spokane County, Washington and Bonner and Kootenai Counties, Idaho | 07-11-027 | May 2007 |
| American Plating Post-Interim-Action Groundwater Monitoring Results, May and September, 2006 | 07-03-005 | February 2007 |
| Assessment of Surface Water / Groundwater Interactions and Associated Nutrient Fluxes in the Deschutes River and Percival Creek Watersheds, Thurston County | 07-03-002 | January 2007 |
| Montesano Groundwater Investigation of Leaking Underground Storage Tanks, October 2005 and March 2006 | 07-03-004 | January 2007 |
| Quality Assurance Project Plan: Bertrand Creek and Meadowdale Areas (Whatcom County) Follow-Up Study of EDB and 1,2-DCP in Residential Wells. | 07-03-102 | January 2007 |
| Addendum to the Quality Assurance Project Plan for: Groundwater, Soil, and Crop Nitrogen at a Field Where Dairy Waste is Used as Fertilizer in Whatcom County | 04-03-112ADD | January 2007 |
| Addendum to the Quality Assurance Project Plan: Montesano Groundwater Investigation of Leaking Underground Storage Tank Sites | 04-03-114ADD | October 2006 |
| Palermo Wellfield Superfund Site Subdrain System and Treatment Lagoon, Status Report, September 2005 and June 2006 | 06-03-035 | September 2006 |
| Shelton Laundry and Cleaners, August 2005 through May 2006 Groundwater Monitoring Results | 06-03-029 | July 2006 |
| Addendum to the Quality Assurance Project Plan for Shelton Laundry and Cleaners. | 02-03-078ADD | July 2006 |
| Lakewood Plaza Cleaners, June and November 2005 Groundwater Monitoring Results | 06-03-010 | January 2006 |
| Groundwater-Surface Water Interactions along the Naches and Tieton Rivers, Summer and Fall 2004 | 06-03-003 | January 2006 |
| Montesano Groundwater Investigation of Leaking Underground Storage Tanks, October 2004 and March 2005 | 06-03-008 | January 2006 |
| Washington State Groundwater Assessment Program: Hydrology and Quality of Groundwater in the Centralia-Chehalis Area Surficial Aquifer | 05-03-040 | December 2005 |
| Quality Assurance Project Plan: Assessment of Ambient Groundwater Quality Conditions in the Surficial Unconsolidated Sedimentary Aquifer of the Moxee Valley, Yakima County, Washington | 05-03-119 | December 2005 |
| Screening Survey for Petroleum Contamination at Cornet Bay Marina (Island County) | 05-03-033 | September 2005 |
| Palermo Wellfield Superfund Site Subdrain System and Treatment Lagoon, Status Report, September 2004 and June 2005 | 05-03-027 | August 2005 |
| Groundwater Data Summary for the Wenatchee River Watershed Total Maximum Daily Load Study | 05-03-018 | July 2005 |
| Shelton Laundry and Cleaners, September 2004 and April 2005 Groundwater Monitoring Results | 05-03-019 | June 2005 |
| Quality Assurance Project Plan: Investigation of Petroleum Products in Black Lake Sediment and Surface Water from Underground Tanks. | 05-03-105 | April 2005 |
| Quality Assurance Project Plan: Saginaw Mill Groundwater Monitoring | 05-03-102 | February 2005 |
| Lake Whatcom Total Maximum Daily Load Groundwater Study | 05-03-001 | January 2005 |
| Lakewood Plaza Cleaners, June and November 2004 Groundwater Monitoring Results | 04-03-054 | December 2004 |
| American Plating Post-Interim-Action Groundwater Monitoring Results, February and August 2004 | 04-03-052 | November 2004 |
| Quality Assurance Project Plan: Groundwater, Soil, and Crop Nitrogen at a Field Where Dairy Waste is Used as Fertilizer in Whatcom County. | 04-03-112 | November 2004 |
| DDT Contamination and Transport in the Lower Mission Creek Basin, Chelan County: Total Maximum Daily Load Assessment | 04-03-043 | October 2004 |
| Quality Assurance Project Plan: Montesano Groundwater Investigation of Leaking Underground Storage Tank Sites. | 04-03-114 | October 2004 |
| Palermo Wellfield Superfund Site Subdrain System and Treatment Lagoon, Status Report, October 2003 and May 2004 | 04-03-038 | August 2004 |
| Stillaguamish River Watershed Fecal Coliform, Dissolved Oxygen, pH, Mercury, and Arsenic Total Maximum Daily Load Study | 04-03-017 | July 2004 |
| Shelton Laundry and Cleaners, November 2003 and April 2004 Groundwater Monitoring Results | 04-03-029 | June 2004 |
| Groundwater Contributions to Siebert Creek (Clallam County) During the Summer of 2003 | 04-03-021 | May 2004 |
| Quality Assurance Project Plan: American Plating Post-Interim Action Monitoring | 04-03-105 | March 2004 |
| Quality Assurance Project Plan: Screening for Pharmaceuticals in Wastewater Treatment Plant Effluents, Groundwater, and Surface Water in the Sequim-Dungeness Area | 04-03-104 | February 2004 |
| Quality Assurance Project Plan: Groundwater Assessment Program Pilot Study,
Phase 2 | 04-03-102 | January 2004 |
| Lakewood Plaza Cleaners, February and September 2003 Groundwater Monitoring Results | 03-03-050 | December 2003 |
| Palermo Wellfield Superfund Site Subdrain System and Treatment Lagoon Status Report, December 2002 and May 2003 | 03-03-046 | October 2003 |
| Quality Assurance Project Plan: Groundwater Assessment Program Pilot Study, Phase 1 | 03-03-109 | October 2003 |
| Ken's Auto Wash | 03-09-092 | October 2003 |
| Groundwater Quality in the Central Ahtanum Valley, Yakima County, March 2001 - December 2002 | 03-03-040 | July 2003 |
| Shelton Laundry & Cleaners, July 2002 through April 2003 Groundwater Monitoring Results | 03-03-038 | July 2003 |
| Groundwater Quality in the Agnew and Carlsborg area, Clallam County, December 2000 - September 2002 | 03-03-017 | April 2003 |
| Groundwater/Surface Water Interactions in the Upper Sammamish River: A Preliminary Analysis | 03-03-015 | March 2003 |
| Moses Lake Total Maximum Daily Load Groundwater Study | 03-03-005 | February 2003 |
| Lakewood Plaza Cleaners, February and August 2002 Groundwater Monitoring Sampling Results | 03-03-007 | February 2003 |
| Quality Assurance Project Plan: Shelton Cleaners and Laundry | 02-03-078 | December 2002 |
| Quality Assurance Project Plan: Characterization of Groundwater Discharge to Lake Whatcom | 02-03-082 | December 2002 |
| Quality Assurance Project Plan: Monitoring for Nitrate Trends in the Central Sumas-Blaine Surficial Aquifer | 02-03-084 | December 2002 |
| Restover Truck Stop Groundwater Monitoring, Results of February 2002 Sampling | 02-03-018 | April 2002 |
| Effects of Land Application of Manure on Groundwater at Two Dairies over the Sumas-Blaine Surficial Aquifer: Implications for Agronomic Rate Estimates | 02-03-007 | March 2002 |
| 2001 Washington State Water Quality Assessment Section 305(b) Report Update | 01-10-015 | January 2002 |
| Effects of Land Application of Dairy Manure and Wastewater on Groundwater Quality: Pre- and Post-Animal Waste Holding Pond Monitoring | 02-03-002 | January 2002 |
| Assessment of Surface Water and Groundwater Interchange within the Muck Creek Watershed, Pierce County | 01-03-037 | December 2001 |
| Relationship Between the Upper Dungeness River and the Bedrock Aquifer, Clallam County | 01-03-027 | December 2001 |
| Quality Assurance Project Plan: Groundwater/Surface Water Interactions In the Sammamish River: a Preliminary Analysis. | 01-03-068 | October 2001 |
| Lakewood Plaza Cleaners, January and August 2001 Groundwater Monitoring Sampling Results | 01-03-032 | September 2001 |
| Spokane River/Aquifer Interaction Project Results, May - November 1999 | 01-03-024 | July 2001 |
| American Crossarm and Conduit Monitoring Results, November 2000 and April 2001 | 01-03-022 | June 2001 |
| Quality Assurance Project Plan: Characterization of the Groundwater Discharge to Moses Lake, Washington | 01-03-074 | April 2001 |
| Restover Truck Stop Groundwater Monitoring, Results of December 2000 Sampling | 01-03-011 | March 2001 |
| Quality Assurance Project Plan: Ambient Groundwater Monitoring in the Dungeness Watershed, Clallam County, Washington | 00-03-086 | December 2000 |
| Quality Assurance Project Plan: Characterizing Surface Water/Groundwater Interactions in the Muck Creek Watershed Pierce County, Washington | 00-03-097 | December 2000 |
| WDOT-Skokomish Site near Potlatch: Volume 1. Rapid Infiltration Hydrogeologic Study | 00-03-051 | December 2000 |
| WDOT-Skokomish Site near Potlatch: Volume 2. Groundwater Mounding Analysis | 00-03-052 | December 2000 |
| American Crossarm and Conduit Monitoring Results, September 1999 and June 2000 | 00-03-050 | December 2000 |
| Smith Prairie Groundwater Quality Assessment | 00-03-043 | November 2000 |
| Lakewood/Plaza Cleaners, January and August 2000 Groundwater Monitoring Sampling Results | 00-03-046 | November 2000 |
| Hamilton/Labree Road PCE Site Groundwater Monitoring, February and July 1999 | 00-03-037 | September 2000 |
| Washington's Environmental Health 2000 | 00-01-003 | August 2000 |
| Restover Truck Stop, Groundwater Monitoring, Results of January 2000 Sampling | 00-03-025 | June 2000 |
| Northcentral Sumas-Blaine Surficial Aquifer Nitrate Characterization Project - June 1999 | 00-03-010 | March 2000 |
| Estimates of Nitrate-N Loading to South Puget Sound by Groundwater Discharge | 99-348 | November 1999 |
| Groundwater Data Compilation for the Okanogan Watershed | 99-342 | October 1999 |
| Estimated Baseflow Characteristics of Selected Washington Rivers and Streams: Water Supply Bulletin No. 60 | 99-327 | October 1999 |
| Estimated Baseflow Characteristics of Selected Washington Rivers and Streams - data and GIS project files | 99-327data | October 1999 |
| Restover Truck Stop Ground Water Monitoring, January and July 1999 | 99-336 | September 1999 |
| Moses Lake Dunes Wastewater Treatment Plant, Class II Groundwater Inspection | 99-325 | June 1999 |
| The Aquifer Vulnerability Project -- Nooksack Pilot Study Report | 99-10 | June 1999 |
| Hamilton/Labree Road PCE Site Ground Water Monitoring October 1997 - July 1998 | 99-322 | April 1999 |
| American Crossarm and Conduit January 6-7, September 9-10, and December 9-10, 1997 | 99-321 | April 1999 |
| Chehalis River Watershed Surficial Aquifer Characterization | 98-335 | December 1998 |
| Basic American Foods Class II Groundwater Inspection | 98-330 | October 1998 |
| Rocky Ford Creek TMDL Study | 98-326 | September 1998 |
| Restover Truck Stop Ground Water Monitoring, February and July 1998. | 98-327 | September 1998 |
| Lakewood/Plaza Cleaners February 2, 1998 | 98-325 | August 1998 |
| Sumas-Blaine Surficial Aquifer Nitrate Characterization | 98-310 | May 1998 |
| Monterey Apartments Ground Water Monitoring, October 1995 - November 1997 | 98-314 | May 1998 |
| Washington State Pesticide Monitoring Program: 1996 Surface Water Sampling Report | 98-305 | March 1998 |
| Washington State Pesticide Monitoring Program: 1995 Surface Water Sampling Report | 98-300 | 1998 |
| Yelm Groundwater Baseline Sampling | 98-301 | 1998 |
| Lakewood/Plaza Cleaners July 23-24, 1997 | 97-339 | December 1997 |
| Restover Truck Stop Ground Water Monitoring, February and August 1997 | 97-340 | December 1997 |
| Lakewood/Plaza Cleaners January 9, 1997 | 97-324a | June 1997 |
| Winter Soil Pore-Water Nitrate at the Deer Park Land Application Site 1995-96 | 97-308 | April 1997 |
| Pesticide Residues in the Kittitas Valley Surficial Aquifer | 97-318 | April 1997 |
| Lakewood/Plaza Cleaners July 31, 1996 | 97-312 | March 1997 |
| Ground Water in Washington State | 96-007 | 1997 |
| Argonne Road Ground Water Characterization of Organic Solvents November 1995 & May 1996 | 96-354 | December 1996 |
| Ground Water Quality Characterization and Nitrate Investigation of the Glade Creek Watershed | 96-348 | November 1996 |
| Toftdahl Drum Site Ground Water Monitoring, June 24, 1996 | 96-346 | October 1996 |
| Relationship Between Ground Water and Surface Water in the Quilceda Creek Watershed | 96-333 | October 1996 |
| Watershed Briefing Paper for the Upper and Lower Yakima Watersheds | 96-336 | September 1996 |
| Watershed Briefing Paper for the Lower Columbia Basin Watershed | 96-338 | September 1996 |
| Evaluation of Groundwater Contamination at Roeder Avenue Landfill, Bellingham | 96-341 | September 1996 |
| Pendleton Woolen Mill Land Application Site Ground Water Monitoring Evaluation | 96-321 | June 1996 |
| Nooksack Watershed Surficial Aquifer Characterization | 96-311 | May 1996 |
| Pesticide Residues in the Skagit Delta Surficial Aquifer - Washington State Pesticide Monitoring Program | 96-302 | April 1996 |
| Pesticides in Washington State's Ground Water, A Summary Report, 1988-1995: Washington State Pesticide Monitoring | 96-303 | April 1996 |
| Lakewood/Plaza Cleaners January 17 - 18, 1996 | 96-317 | April 1996 |
| Restover Truck Stop Ground Water Monitoring, August and October 1995 | 96-312 | March 1996 |
| Washington State Pesticide Monitoring Program: 1994 Surface Water Sampling Report | 96-305 | February 1996 |
| Restover Truck Stop Ground Water Monitoring, February and April 1996 | 96-344 | 1996 |
| A Report on Nitrate Contamination of Ground Water in the mid-Columbia Basin | 96-017 | 1996 |
| Lakewood/Plaza Cleaners July 11, 12 & 14, 1995 | 95-359 | November 1995 |
| Estimates of Ground-Water Contaminant Loading to the Colville River in the Vicinity of L-Bar Products | 95-344 | October 1995 |
| Pesticide Residues in the Walla Walla Surficial Aquifer - Pesticides in Ground Water Report #7 | 95-327 | September 1995 |
| Watershed Briefing Paper for the Upper and Lower Snake River Water Quality Management Area | 95-346 | September 1995 |
| Watershed Briefing Paper for the San Juan Islands Water Resource Inventory Area | 95-347 | September 1995 |
| Toftdahl Drum Site Ground Water Monitoring Round VIII, July 17, 1995 | 95-353 | September 1995 |
| Loon Lake Sewer District 4 Treatment Plant Class II Inspection | 95-341 | August 1995 |
| Restover Truck Stop Ground Water Monitoring, February and April 1995 | 95-339 | July 1995 |
| Lakewood/Plaza Cleaners Round IX Nov 8-9, 1994 | 95-340 | July 1995 |
| Endicott School Soil Gas Survey Endicott Washington, August 1993 | 95-325 | June 1995 |
| Evaluation of the Potential for Ground Water Contamination at Sunland Land Application Site | 95-312 | May 1995 |
| Loon Lake Class II Inspection, Groundwater Permit No. ST 8019 | 95-319 | May 1995 |
| Watershed Briefing Paper for the Nooksack Water Resource Inventory Area | 95-321 | May 1995 |
| Quilcene Soil Gas Survey - Quilcene, Washington May 1994 | 95-317 | April 1995 |
| Vadose Monitoring at Deer Park, WA - A Municipal Effluent Land Application Site | 95-303 | March 1995 |
| Restover Truck Stop Ground Water Monitoring, August and November 1994 | 95-313 | March 1995 |
| Toftdahl Drum Site Ground Water Monitoring Round VII, June 21, 1994 | 95-302 | 1995 |
| Assessments for Ground Water Contamination Potential: Fort Flagler and Sequim Bay State Park | 95-304 | 1995 |
| Lakewood/Plaza Cleaners Round VIII, April 18-20, 1994 | 94-198 | December 1994 |
| Vanalco Aluminum (Vancouver) Class II Inspection January 10-12, 1994. | 94-159 | October 1994 |
| Restover Truck Stop Ground Water Monitoring, January and April 1994 | 94-161 | October 1994 |
| Washington State Pesticide Monitoring Program: 1993 Surface Water Sampling Report | 94-164 | October 1994 |
| Pesticide Residues in the Woodland Surficial Aquifer, Pesticide Report #6 | 94-128 | August 1994 |
| Republic Soil Gas Survey, Republic WA | 94-130 | August 1994 |
| Lakewood/Plaza Cleaners Round VII, December 1-2, 1993 | 94-131 | August 1994 |
| Vadose Zone Monitoring at Tree Top Land Application Site in Selah, WA, June-Dec. 1992 | 94-148 | August 1994 |
| Black River Dissolved Oxygen and Phosphorus Total Maximum Daily Load Study | 94-106 | June 1994 |
| Effects of Leakage from Four Dairy Waste Storage Ponds on Ground Water Quality, Final Report | 94-109 | June 1994 |
| Ground Water Quality Survey near Edaleen Dairy, Whatcom County, Washington, January 1990 to April 1993 | 94-37 | April 1994 |
| Restover Truck Stop Long-Term Monitoring, Rounds XI & XII | 94-e32 | March 1994 |
| Water-Level Monitoring, Bellingham Frozen Foods, September 14 through December 9, 1993, Bellingham, Washington | 94-e14 | February 1994 |
| Upper Chehalis River Dry Season Total Maximum Daily Load Study | 94-126 | 1994 |
| Pesticide Residues in the East Chehalis Surficial Aquifer/Pesticides in Ground Water-Report No. 5 | 94-26 | 1994 |
| Cadmium, Copper, Mercury, Lead, and Zinc in the Spokane River: Comparisons with Water Quality Standards and Recommendations for Total Maximum Daily Loads | 94-99 | 1994 |
| Lakewood/Plaza Cleaners Long-Term Monitoring Round VI, May 3-4, 1993 | 93-e39 | November 1993 |
| Toftdahl Drum Site Ground Water Monitoring Round VI - April 6, 1993. August 1993 | 93-e43 | September 1993 |
| Willapa Bay Watershed Bacterial Evaluation and Preliminary Control Strategy | 93-64 | September 1993 |
| Restover Truck Stop Ground Water Monitoring, Round X, January 5 & 6, 1993 | 93-e42 | July 1993 |
| Quincy Agricultural Chemicals Ground Water Assessment | 93-e35 | March 1993 |
| Lakewood/Plaza Cleaners Long-term Monitoring Round V; December 1-3, 1992 | 93-e38 | February 1993 |
| Memorandum on Soil Gas Sampling at Great Western Malting Company, Vancouver, Washington - September 1992 | 93-e36 | 1993 |
| Restover Truck Stop Ground Water Monitoring, Round IX, July 20 & 21, 1992. | 93-e41 | 1993 |
| Effectiveness of Washington's Forest Practice Riparian Management Zone Regulations for Protection of Stream Temperature | 92-64 | July 1992 |
| Assessment of Ground Water and Surface Water Contamination at the Washington State University Chemical Dump Site-Pullman, Washington, March 13-15, 1990 | 91-e38 | November 1991 |
| Restover Truck Stop Ground Water Monitoring, Round VI | 91-e37 | June 1991 |
| Portage Creek: Nonpoint Source Pollution Effects on Quality of the Water Resource | 95-300 | 1991 |
| Results for Monitoring Round 3 - Restover Truck Stop. Memo to Mike Kuntz, December 11, 1989. | 89-e49 | 1989 |
| Ground Water Monitoring Strategy for Washington: III. Ground Water Monitoring Needs Evaluation. IV. Recommended Strategy for Addressing Monitoring Needs. | 85-8C | July 1988 |
| Basic American Foods Class II Wastewater Inspection April 27-29, 1998 | 99-319 | April 1988 |
| Ground Water Monitoring Strategy for Washington, II. Summary of Ground Water Monitoring Activities. | 85-8B | April 1987 |
| Ground Water Monitoring Strategy for Washington, I. Objectives for Ground Water Monitoring Activities. | 85-8A | March 1987 |
| Restover Truck Stop Ground Water Monitoring, August and November 1996 | 97-310 | March 1987 |
| Quality Assurance Interim Guidelines for Water Quality Sampling and Analysis: Ground Water Management Areas Program | 90-19 | December 1986 |
| Gibbons Creek Remnant Channel Receiving Water Study | 96-313 | April 1986 |
| Olympic Mall Ground Water Investigation | oftr 74-03 | July 1974 |
| Manchester Water District #4 Aquifer Test | OFTR 73-01 | December 1973 |
| Aquifer Test Smugglers' Villa, Orcas Island, San Juan County, Washington | OFTR 73-02 | March 1973 |
| A Geohydrologic Reconnaissance of the Dead Canyon Area, Klickitat County, Washington | oftr 72-03 | December 1972 |
| Geohydrologic Reconnaissance: Monse Area, Okanogan County, Washington | oftr 72-02 | December 1972 |
| Long Beach Lagoon Discharge Receiving Water and Ground Water. Memo to Nelson Graham. | 71-e12 | October 1971 |
| Report on the Geology And Ground-Water Resources of the Arlington Heights, Snohomish County, Washington | OFTR 70-01 | 1970 |
| A Brief Description of the Ground-Water Resources of Pacific and Wahkiakum Counties, Washington | OFTR 69-01 | 1969 |
| A Preliminary Report on the Geology and Ground-Water Resources of the Duck Lake Area, Okanogan County, Washington | OFTR 61-01 | 1961 |
