Harkness & Hoffman 1
Plugged Dry hole well
| API number | 12-001-22228 |
|---|---|
| Operator | Mason & Jansen |
| County | Adams, Illinois |
| Permitted | 1986-02-18 |
| Completed | 1986-04-01 |
| Depth | 487 ft |
| Surface location | 39.860810, -91.191075 · wells within 1 mile |
| State record | Illinois State Geological Survey ↗ |
| Data as of | 2026-10-17 |
From Illinois State Geological Survey public records. Verify with the state before relying on this information.