GroundRosterG. Mark SillLicensed
| Name | G. Mark Sill |
| License number | 103-000062 |
| License type | Closed Loop Well Contractor |
| License status | Active — IDPH licensed water well contractor |
| Location | Lima, Illinois 61046 |
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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 this listing exactly as it appears in Illinois's official licensing records; we do not vouch for the business itself. Before hiring, look up license #103-000062 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Illinois Dept. of Public Health - Water Well Contractor licences, last checked 2026-08-17. Verify at the official source.
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