GroundRosterGavin Barnhart
| Name | Gavin Barnhart |
| License number | 04133 |
| License type | Sewage Enforcement Officer (SEO) |
| License status | Certified SEO — current renewal cycle through 2026-11-28 |
| License expires | 2026-11-28 |
| Based in | Mercersburg, Pennsylvania 17236 |
| Phone | (717) 377-6416 |
"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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How to verify this license
We publish the license details exactly as they appear in Pennsylvania's official licensing records; we do not vouch for the business itself. Before hiring, look up license #04133 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: PA Clean Water Academy - Sewage Enforcement Officers (Active), last checked 2026-08-16. Verify at the official source.
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