Licensed septic companies in Marshall County, Oklahoma
5 businesses on Oklahoma’s septic licensing records give Marshall County as its address, alongside 5 individually licensed onsite professionals.
Licensed businesses based in Marshall County
- Grotts Landscaping(580) 564-5110KingstonInstaller
- Hale Excavating(580) 795-5195MadillInstaller
- Hale Septic(580) 795-4164MadillInstaller
- Monroes Construction(580) 898-2010KingstonInstaller
- Standard Construction & Environmental(580) 565-4085KingstonInstaller
| Company | Licensed for | Phone |
|---|---|---|
| Grotts LandscapingKingston | Installer | (580) 564-5110 |
| Hale ExcavatingMadill | Installer | (580) 795-5195 |
| Hale SepticMadill | Installer | (580) 795-4164 |
| Monroes ConstructionKingston | Installer | (580) 898-2010 |
| Standard Construction & EnvironmentalKingston | Installer | (580) 565-4085 |
Individually licensed onsite professionals in Marshall County
Oklahoma licenses people as well as companies. These are the named professionals the state has licensed, listed with the licence they hold and when it expires. They are usually employed by one of the businesses above.
| Name | Licence | City | Expires |
|---|---|---|---|
| Andy Mixon | Subsurface absorption · Lagoon · Aerobic with spray dispersalNo. 802 | Kingston | Not stated |
| Chad Hale | Aerobic with spray dispersalNo. 1081 | Madill | Not stated |
| Justin Grotts | Subsurface absorption · Aerobic with spray dispersalNo. 411 | Kingston | Not stated |
| Kenneth Hale | Subsurface absorption · LagoonNo. 185 | Madill | Not stated |
| Richard Monroe | Subsurface absorption · Aerobic with spray dispersalNo. 1036 | Kingston | Not stated |
Who handles septic permits in Marshall County
Oklahoma DEQ certifies installers and publishes the whole list. A certified installer may inspect their own installation and backfill without waiting for a DEQ inspector, which is why the certification is worth checking rather than assuming.
Towns in Marshall County
Where in the county each licensed business is based.
Licensed companies in neighbouring counties
A Oklahoma septic licence is valid statewide, so a company listed in an adjoining county can legally do the work in Marshall County.
Records as published August 26, 2026. A licence can lapse at any time — confirm with DEQ's own certified installer list before hiring. Report a correction.