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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| Hamilton Above All Septic | Cincinnati, OH | — | Septage Hauler | 65375675 |
| Hancock Advanced Excavating and Demolition | McComb, OH | — | Septage Hauler | 800197875 |
| Hansel's Septic Tank Service | Columbus, OH | — | Septage Hauler | 66463776 |
| Hardin F & L Septic | Kenton, OH | — | Septage Hauler | 2398354 |
| Heeter Environmental LLC | Dayton, OH | — | Septage Hauler | CBE1057275 |
| Heimberger Land Management Services LLC | Lancaster, OH | — | Septage Hauler | 999399910 |
| Henry Koops Septic Service LLC | Holgate, OH | — | Septage Hauler | Q9681633191 |
| Hettel Services | Lucasville, OH | — | Septage Hauler | 66890582 |
| Highland Apex Septic Solutions | Greenfield, OH | — | Septage Hauler | BX0078840 |
| Hocking Imperial Throne | Laurelville, OH | — | Septage Hauler | 999447352 |
| Hoekstra LLC | Newark, OH | — | Septage Hauler | 999361897 |
| Holmes Advanced Septic Solutions LLC | Millersburg, OH | — | Septage Hauler | 66714138 |
| Hoover Septic Tank Cleaning | Tiffin, OH | — | Septage Hauler | 7900466925 |
| Horses Sanitation Service | Harrod, OH | — | Septage Hauler | LSM0681960 |
| HP Excavating, Inc. | Moundsville, WV | — | Septage Hauler | LSM5074988 |
| Hughes Reliable Septic Services LLC | Mason, OH | — | Septage Hauler | A270086960 |
| Humbert Sanitary Service Inc | North Canton, OH | — | Septage Hauler | 62248745 |
| Huron A-1 Sewer and Drain, DBA Rotorooter | Norwalk, OH | — | Septage Hauler | 999453018 |
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