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Septic Registry

Licensed septic companies in McDonald County, Missouri

96 businesses on Missouri’s septic licensing records give McDonald County as its address, alongside 3 individually licensed onsite professionals.

82 registered owts installers →21 registered onsite soil evaluators →3 registered onsite wastewater professionals →

Licensed businesses based in McDonald County

Individually licensed onsite professionals in McDonald County

Missouri 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.

Licensed onsite professionals in McDonald County
NameLicenceCityExpires
Jennifer ArnoldOnsite Soil EvaluatorNo. 51202NoelAugust 31, 2026
Justin ArnoldOnsite Soil EvaluatorNo. 51201NoelAugust 31, 2026
Travis ArnoldOnsite Soil EvaluatorNo. 51209NoelAugust 31, 2026

Who handles septic permits in McDonald County

Missouri registers the individual installer and records the counties they serve. Your local health authority permits the system itself, and in some counties runs its own additional requirements on top.

How to verify a septic licence before you hire →

Licensed companies in neighbouring counties

A Missouri septic licence is valid statewide, so a company listed in an adjoining county can legally do the work in McDonald County.

Records as published August 26, 2026. A licence can lapse at any time — confirm with Missouri DHSS, or the state's own published registration data before hiring. Report a correction.