GroundRosterRyan Slopko
| Name | Ryan Slopko |
| License number | 66982002 |
| License type | Sewage Treatment System Service Provider |
| License status | Bonded — Ohio Department of Health, 2026 bond lists |
| Based in | Londonderry, Ohio 45647 |
"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
- Service: licensed to operate and service advanced treatment systems on an ongoing contract.
How to verify this license
We publish the license details exactly as they appear in Ohio's official licensing records; we do not vouch for the business itself. Before hiring, look up license #66982002 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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