GroundRosterCSM Contracting LLC
| Name | CSM Contracting LLC |
| License number | 100314125, OH5976954 |
| License type | Sewage Treatment System Installer · Sewage Treatment System Service Provider |
| License status | Bonded — Ohio Department of Health, 2026 bond lists |
| Location | Logan, Ohio 43138 |
| Phone | (740) 583-0512 |
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What this license covers
- Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
- Service: licensed to operate and service advanced treatment systems on an ongoing contract.
How to verify this license
We publish this listing exactly as it appears in Ohio's official licensing records; we do not vouch for the business itself. Before hiring, look up license #100314125, OH5976954 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Ohio Department of Health - Sewage Treatment System Bond Lists, last checked 2026-08-17. Verify at the official source.
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