Maine Well Data · Maine Geological Survey
Maine Geological Survey well records, searchable by address
Every Maine well log is filed with the Maine Geological Survey well database. Those records are public, but they are organized by mapped location and record number — not by street address. We hold 95,271 of them and rebuild the index weekly, so you can start from an address instead.
✓ Verified against Maine Geological Survey · 2026-08-22
Enter any Maine address and we return the wells recorded around it — Maine records a street address for the well itself on about nine wells in ten, but places most of them from the tax map and lot or by geocoding that address rather than by GPS — so a well is located to its parcel rather than to an exact wellhead.
Free address lookup Full property report — $29What a Maine Geological Survey 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 95,271 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. | 95,265 (100%) | |
| Total depth | How deep the hole was drilled, in feet. | 94,618 (99%) | |
| Date completed | When the well was finished and the log filed. | 94,428 (99%) | |
| Tested yield | Gallons per minute the well produced on the driller’s pump test. | 90,662 (95%) | |
| Driller | The licensed company that drilled the well and signed the log. | 86,900 (91%) | |
| Street address | A street address on the filed report (varies a lot by state and era). | 83,671 (88%) | |
| Drilling method | Rotary, cable tool, auger, and so on. | 19,009 (20%) | |
| Static water level | How far below the surface the water stood at rest. | 8,320 (9%) |
How this differs from going to Maine Geological Survey directly
Nothing here replaces the official record, and for a single well you already have the record number for, Maine Geological Survey is the place to go (www.maine.gov/dacf/mgs/hazards/water_wells). 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. Maine records a street address for the well itself on about nine wells in ten, but places most of them from the tax map and lot or by geocoding that address rather than by GPS — so a well is located to its parcel rather than to an exact wellhead.
- 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.
Maine Geological Survey records by county
See all 16 Maine counties → · What a Maine well log contains →
Common questions
With Maine Geological Survey — the Maine Geological Survey well database. Every Maine driller files a completion report there for each well drilled, and that filing is the authoritative copy of the record. The official site is www.maine.gov/dacf/mgs/hazards/water_wells.
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, Maine records a street address for the well itself on about nine wells in ten, but places most of them from the tax map and lot or by geocoding that address rather than by GPS — so a well is located to its parcel rather than to an exact wellhead.
No, and it is not meant to be. This is an independent index built from the data Maine Geological Survey publishes, rebuilt weekly. For the authoritative copy of any single record, go to Maine Geological Survey directly. If our copy and the state's ever disagree, the state's is right.
Our current copy holds 95,271 records across 16 counties, with completion dates from 1900 to 2026. That is everything Maine Geological Survey publishes in its bulk record set as of 2026-08-22. 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 Maine Geological Survey 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 →