GroundRosterDavid Korthase Services
| Name | David Korthase Services |
| License number | 15-1640 |
| License type | Water Well Drilling Contractor |
| License status | Registered for the May 1, 2026 – April 30, 2027 cycle |
| License cycle | Licenses on this roster run on one renewal cycle rather than individual dates. In our copy (as of 2026-08-16), the cycle ends 2027-04-30. |
| Based in | Boyne Falls, Michigan 49713 |
| Phone | (231) 582-6076 |
"Based in" is the city on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
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What this license covers
- Drilling / construction: licensed to bore, case, complete, and plug water wells.
How to verify this license
We publish the license details exactly as they appear in Michigan's official licensing records; we do not vouch for the business itself. Before hiring, look up license #15-1640 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Michigan EGLE - Wellogic Registered Water Well Drilling and Pump Installation Contractors (via LMAS District Health Department mirror), last checked 2026-08-16. Verify at the official source.
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