California Well Data · DWR
DWR well records, searchable by address
Every California well log is filed with the California Department of Water Resources (DWR) Well Completion Reports database. Those records are public, but they are organized by mapped location and record number — not by street address. We hold 750,016 of them and rebuild the index weekly, so you can start from an address instead.
✓ Verified against DWR · 2026-08-14
Enter any California address and we return the wells recorded around it — the majority of wells are plotted at the center of the 1-mile Public Land Survey System section they were filed in, per DWR — not the exact wellhead location.
Free address lookup Full property report — $29What a DWR 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 750,016 records, so you know what to expect before you search.
| Field | What it tells you | Records with it | Coverage |
|---|---|---|---|
| Mapped location | Coordinates, so the log can be found by address instead of by record number. | 712,244 (95%) | |
| Total depth | How deep the hole was drilled, in feet. | 573,032 (76%) | |
| Driller | The licensed company that drilled the well and signed the log. | 571,967 (76%) | |
| Date completed | When the well was finished and the log filed. | 567,763 (76%) | |
| Street address | A street address on the filed report (varies a lot by state and era). | 321,368 (43%) | |
| Tested yield | Gallons per minute the well produced on the driller’s pump test. | 224,784 (30%) | |
| Static water level | How far below the surface the water stood at rest. | 175,235 (23%) |
How this differs from going to DWR directly
Nothing here replaces the official record, and for a single well you already have the record number for, DWR is the place to go (data.cnra.ca.gov/dataset/well-completion-reports). 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. The majority of wells are plotted at the center of the 1-mile Public Land Survey System section they were filed in, per DWR — not the exact wellhead location.
- 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.
DWR records by county
See all 58 California counties → · What a California well log contains →
Common questions
With DWR — the California Department of Water Resources (DWR) Well Completion Reports database. Every California driller files a completion report there for each well drilled, and that filing is the authoritative copy of the record. The official site is data.cnra.ca.gov/dataset/well-completion-reports.
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, the majority of wells are plotted at the center of the 1-mile Public Land Survey System section they were filed in, per DWR — not the exact wellhead location.
No, and it is not meant to be. This is an independent index built from the data DWR publishes, rebuilt weekly. For the authoritative copy of any single record, go to DWR directly. If our copy and the state's ever disagree, the state's is right.
Our current copy holds 750,016 records across 58 counties, with completion dates from 1858 to 2026. That is everything DWR publishes in its bulk record set as of 2026-08-14. 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 DWR 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 $29.
The property report pulls every recorded well near an address — depths, water levels, yields, drillers — as one printable summary for due diligence.
Property report — $29Driller, agent, or inspector pulling these regularly? Unlimited & white-label plans →