Water photo

Water

Groundwater is one of Washington's most vital natural resources. Basalt formations near the Columbia River. Photo: USGS

Groundwater

Groundwater can be described as water that collects or flows beneath the Earth's surface, filling the porous spaces in soil, sediment, and rocks.  Groundwater largely originates from rain and from melting snow and ice and is the source of water for aquifers, springs, and wells.  The upper surface of groundwater saturation is called the water table.

GROUNDWATER NEWS

GROUNDWATER USE

Well Logs | Water Rights | Water Right Map Search | Well Construction and Licensing | Permit Exempt Wells | Groundwater-Surface Water Relationship | Drinking Water (DOH)

GROUNDWATER QUALITY

Groundwater Quality Information | Hanford Groundwater | Reclaimed Water | Underground Injection Control (UIC)

GROUNDWATER ASSESSMENT AND DATA

Groundwater Assessment | Completed Groundwater Studies | Current Groundwater Studies | Water Supply Bulletins | EIM Groundwater Data Center | PARIS Water Quality Permit Database | Links to Information on Groundwater in Washington State | Standard Groundwater Field Procedures

GROUNDWATER LAWS AND RULES

Regulation of Public Groundwaters (RCW 90.44) | Critical Aquifer Recharge Areas (CARA) | State Model Toxics Control Act Law | State Water Pollution Control Law (RCW 90.48) | Water quality standards regulations for groundwater (WAC 173-200) | Implementation Guidance for the Ground Water Quality Standards

HOW DO I?

old water pump

WELL LOG REPORT

Look up the location, ownership, construction details and lithology of a completed well.

Spotlight

“Abandoned Wells: A Hidden Danger” - October 11, 2013

THE PRIVATE WELL CLASS

a free online class and webinars, grant-funded to educate homeowners about their private water wells.

MANAGING OUR WATER

What we're doing to provide clean, sufficient and reliable water supplies into the future

SEARCHABLE
DATA & PERMITS:

Well Logs

EIM Groundwater Data Center - with video tutorials

Water Right Map Search

PARIS Water Quality Permit Database

GROUNDWATER QUALITY TOPIC:

Yakima Nitrate issue

GROUNDWATER AVAILABILITY TOPIC:

Kittitas Water Exchange

CONTACT US:

Questions and feedback