Washington Well Data · Ecology
Ecology well records, searchable by address
Every Washington well log is filed with Washington State Department of Ecology well construction reports. Those records are public, but they are organized by mapped location and record number — not by street address. We hold 290,594 of them and rebuild the index weekly, so you can start from an address instead.
✓ Verified against Ecology · 2026-10-02
Enter any Washington address and we return the wells recorded around it — wells are plotted at quarter-quarter-section centroids, roughly ±0.5 mi; street addresses are recorded on about 87% of reports.
Free address lookup Full property report — $49What a Ecology record contains
Not every filed report carries every field — older records are thinner, and what the state captured changed over the decades. This is the real coverage across all 290,594 records, so you know what to expect before you search.
| Field | What it tells you | Records with it | Coverage |
|---|---|---|---|
| Original log document | A direct link to the Ecology copy of the filed log itself. | 290,576 (100%) | |
| Mapped location | Coordinates, so the log can be found by address instead of by record number. | 290,275 (100%) | |
| Total depth | How deep the hole was drilled, in feet. | 289,005 (99%) | |
| Date completed | When the well was finished and the log filed. | 280,164 (96%) | |
| Driller | The licensed company that drilled the well and signed the log. | 213,111 (73%) | |
| Street address | A street address on the filed report (varies a lot by state and era). | 189,654 (65%) | |
| Static water level | How far below the surface the water stood at rest. | 51,789 (18%) | |
| Tested yield | Gallons per minute the well produced on the driller’s pump test. | 42,589 (15%) |
How this differs from going to Ecology directly
Nothing here replaces the official record, and for a single well you already have the record number for, Ecology is the place to go (appswr.ecology.wa.gov/wellconstructionmap). What this site adds is the part that is hard from the source data:
- An address is enough. You do not need a record number, a section-township-range, or a latitude to start. Wells are plotted at quarter-quarter-section centroids, roughly ±0.5 mi; street addresses are recorded on about 87% of reports.
- The neighbours, not just the well. Buyers and lenders care what depth and yield are normal nearby, which means reading many records at once, not one.
- The same statistics everywhere. Median depth, static water level and yield are computed identically in every county, so two counties can actually be compared. The exact filters are on the methodology page.
- The original is always one click away. 290,576 of our records carry a direct link to the Ecology copy of the filed log itself.
Ecology records by county
See all 39 Washington counties → · What a Washington well log contains →
Common questions
With Ecology — Washington State Department of Ecology well construction reports. Every Washington driller files a completion report there for each well drilled, and that filing is the authoritative copy of the record. The official site is appswr.ecology.wa.gov/wellconstructionmap.
Not directly — well records are filed against a mapped location and a record number, not a mailing address, which is the single most common reason people give up on the search. That is exactly the gap this site fills: enter an address on our free lookup and we return the recorded wells around that point, wells are plotted at quarter-quarter-section centroids, roughly ±0.5 mi; street addresses are recorded on about 87% of reports.
No, and it is not meant to be. This is an independent index built from the data Ecology publishes, rebuilt weekly. Every well we show links back to its own Ecology record, so you can always open the original filed log. If our copy and the state's ever disagree, the state's is right.
Our current copy holds 290,594 records across 39 counties, with completion dates from 1886 to 2026. That is everything Ecology publishes in its bulk record set as of 2026-10-02. Wells drilled before the state's filing requirement — and hand-dug or unpermitted wells — were never filed anywhere, so they are in neither copy.
Searching by address here is free, the same as searching Ecology is free. What we charge for is the compiled property report — every recorded well near one address, with the statistics and the original log links, as one printable document for a sale or a loan file. That is $49.
The property report pulls every recorded well near an address — depths, water levels, yields, drillers , and links to each original filed log — as one printable summary for due diligence.
Property report — $49Driller, agent, or inspector pulling these regularly? Unlimited & white-label plans →