Understanding Well Data
DepthMap shows well records from public sources. The fields available on a card depend on the record.
Quick Start: View Well Details
Step-by-Step
- Click a well marker on the map.
- Review the well ID and depth, then the other fields available on the record.
- Open View Well Log where a source log link is available.
- Compare nearby records and check the source report before relying on the information.
Well Information Fields
The console's full well card can show these fields when the record has a value:
| Field | What to read |
|---|---|
| Depth | Recorded depth, in feet |
| Owner and Address | Owner and address on the record |
| Location | City, county and state |
| Casing and Casing Diameter | Casing depth in feet and diameter in inches |
| Static Water Level | Recorded water level, in feet |
| Yield | Recorded flow rate, in gallons per minute |
| Date Drilled | Date on the record |
| Well Use and Status | Reported use and status |
| Driller | Driller on the record |
| Aquifer and Formation | Aquifer and formation information on the record |
| Bedrock Depth | Recorded depth to bedrock, in feet |
A missing value does not establish the conditions at the site. Use the source report and professional advice for planning decisions.
Exporting Well Data
Use Export wells on the map to download well records as a CSV file. Map Navigation explains how to choose the area. The file has one row per well and these columns:
| Column | Contents |
|---|---|
| drillerdb_id | DrillerDB record number for the well |
| well_id | Well ID assigned by the reporting agency |
| state | State or province |
| county | County named on the state record |
| latitude, longitude | Well location in decimal degrees |
| distance_km | Distance from the center point (radius exports only) |
| total_depth_ft | Total depth drilled, in feet |
| static_water_level_ft | Static water level, in feet |
| yield_gpm | Yield, in gallons per minute |
| date_drilled | Date drilled (YYYY-MM-DD) |
| bore_diameter_in | Bore diameter, in inches |
| casing_diameter_in | Casing diameter, in inches |
| casing_depth_ft | Casing depth, in feet |
| well_use | Use reported by the state (domestic, irrigation, and so on) |
| well_status | Status reported by the state |
| aquifer | Aquifer, where the state reports one |
| driller | Drilling company on the record |
| source_dataset | The state data set the record came from |
| state_well_log_url | The state's well log page or scan, where one exists |
| drillerdb_url | Link that opens the well on the DepthMap map |
A blank cell means the state record has no value for that field. It is not a zero. Field coverage follows what each state publishes, so some columns are mostly blank in some states. Owner names are not included in exports.
The data comes from state agency well records. When you use an export in a report or another tool, credit the source as "state agency well records via DrillerDB (drillerdb.com)". The state_well_log_url and drillerdb_url columns give the source of each row.
Troubleshooting
Total Depth shows N/A?
- N/A means the state's record for that well has no depth on file. A numeric depth of 0 also shows N/A.
- N/A does not tell you why the depth is missing or whether drilling is complete. Check the source record for that information.
- Compare nearby records that do have a depth, and check the state well log where one is linked.
- The console well card uses Unknown for missing depth. Legacy nearby-well cards can show Depth N/A, and label casing-only records separately from total depth.
A well shows a note instead of its full record?
When you click a well, its card opens at once with the basic details from the map, then loads the full record. If the full record cannot load, the card keeps the basic details and adds one of these notes:
| Note on the card | What to do |
|---|---|
| "Too many well lookups. Try again in 30 seconds." The note gives the time left. | You opened many wells in a short time. Wait for the time in the note. Until then, a click on a well shows the note again with the time left, and the map does not look the well up. |
| "The full record could not load. Click the well again to try again." | Click the well again. |
| "No full record was found for this well." | The map has only the basic details for this well. |
| "You are signed out. Sign in again to see this well's full record." | Sign in again, then click the well. |
| "Your subscription is not active, so the full record is not shown. Renew it in Settings > Billing." | Renew the subscription in Settings > Billing. See Managing Your DepthMap Subscription. |
| "Your role cannot open full well records. Ask an admin for Well Map access." | Ask an admin on your account to check your role. |
Related Topics
- Map Navigation - Find and search wells
- Map Layers - Toggle data layers
- Map Tools - Estimate geology
- DepthMap Overview - Features and subscription