Groundwater Assessment in Washington State
Welcome to the groundwater assessment website! The Environmental Assessment
Program maintains a staff of groundwater scientists who conduct technical studies across a broad spectrum of groundwater-related issues*. Current staff members on the groundwater team include:
- Barb Carey, L.G., L.HG.;
firstname.lastname@example.org; (360) 407-6769
- Martha Maggi, L.G., L.HG.;
email@example.com; (360) 407-6453
- Pam Marti, L.G., L.HG.; firstname.lastname@example.org; (360) 407-6768
- Charles Pitz, L.G., L.HG.;
email@example.com; (360) 407-6775
- Melanie Redding, L.G., L.HG.;
firstname.lastname@example.org; (360) 407-6524
- Kirk Sinclair, L.G., L.HG.;
email@example.com; (360) 407-6557
- Scott Tarbutton,
firstname.lastname@example.org, (509) 329-3453
*Within Ecology, most groundwater field assessment and research is conducted by the Environmental Assessment Program. For information on Ecology policies and regulations related to groundwater, see Water Quality Program’s
Groundwater information page and Water Resources Program page. For additional information regarding cleanup and regulation of groundwater at specific facilities, see the web sites for the Toxics Cleanup Program, the Hazardous Waste Program, the Nuclear Waste Program Groundwater Page, and the
Waste 2 Resources (Solid Waste) Program.
Contents of This Website
Descriptions and contact information for groundwater studies currently underway
in the Environmental Assessment Program, as well as a comprehensive map showing completed studies and links to available on-line reports.
Stumped about where to find information about groundwater in your area? We’ve compiled sources of information that we often head to when conducting one of our studies.
Documentation describing the standardized field methods we use during our
New Items of Note, Current Events & Announcements
- NEW Ecology recently launched a new
focused on Groundwater. A nice directory to agency resources
related to groundwater; make sure to check back in as we add new content.
One interesting new feature we've recently added to the portal is a
listing of news items that involve groundwater in Washington. A good
way to stay up to date on the latest groundwater topics across the state.
- NEW Ecology's Environmental
Information Management (EIM) system has a new
EIM Groundwater Data
Center that allows users to search for groundwater information stored in
the EIM system.
- NEW Ecology's director Ted
Sturdevant recently authorized the formation of a Groundwater Management
Area (GWMA) for the Lower Yakima Valley to address ongoing issues with
nitrate contamination in the local aquifer system. The state has
committed approximately $300,000 in start-up funding for the GWMA; Yakima
County will serve as the lead party for the organization, and advisory board
members have recently been appointed. See
Ecology's Lower Yakima Valley Groundwater Quality webpage for more
- NEW Ecology recently released a
report that summarizes thirty years of groundwater nitrate data that has
been collected from the Sumas-Blaine aquifer in northeastern Washington
(Whatcom County). The data indicate that approximately 30% of the 500+
wells that have been sampled during that time frame exceeded the 10
mg/L-nitrogen maximum contaminant level for nitrate. To read the full
Sumas-Blaine Aquifer Nitrate Contamination Summary; to read a focus
sheet summarizing the report findings, see:
Focus on Groundwater Quality in Whatcom County
- NEW The U.S. Geological Survey (USGS)
recently published a report outlining wide-area declines in groundwater levels that have occurred across the Columbia Plateau between
1968 and 2009. Geologic barriers, the intermixing of water between
aquifers through wells, and groundwater pumping all contribute to the
declines observed in wells across the region. To see the USGS press
release for the report see:
Geology+Wells+Pumping = Drops in Water Level in Columbia Plateau.
To see a full version of the report, see:
Groundwater Status and Trends
for the Columbia Plateau Regional Aquifer System, Washington, Oregon, and
For questions or comments on this web site, please contact Charles Pitz (email@example.com).
Copyright © Washington State Department of Ecology. See http://www.ecy.wa.gov/copyright.html.