This list includes Registered Installers who have indicated they work in this county. The list also shows some other counties served. For more registered installers, you can return to the map and check for installers that work in other nearby counties.

Any installer on this list can install basic OWTS. Advanced OWTS installers are noted with ADV and can install advanced OWTS. The requirements for advanced OWTS installers are effective July 1, 2005. There may be additional requirements to work in some counties. Contact the county onsite sewage authority to confirm that an individual can install systems in the county.

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Missouri Registered OWTS Installers List

Advanced Status Last Name First Name MI Date of Expiration Business Address City State Zip Code Business Phone Counties Served

Alvis Randy L 9/30/2019 Fire and Ice Enterprises LC Rt. 2, Box 33 Revere MO 63465 (660) 754-1234 Clark, Lewis, Scotland, Marion, Ralls

Armstrong Mark D 9/30/2019 Armstrong Plumbing & Trenching 251 N. Martin Ave Kahoka MO 63445 (660) 727-2041 Clark, Scotland, Lewis, Knox
ADV. Horst Harold
7/31/2020 Horst Plumbing 52155 State Highway Y Baring MO 63531 (660) 892-4582 Knox, Scotland, Adair, Lewis

McFarland Timothy Clark 9/30/2019 Fire and Ice Enterprises LC RR 2 Box 33 Revere MO 63465 (660) 754-1234 Clark, Lewis, Scotland, Marion, Ralls

Miller Edwin M 9/30/2020 Miller Trenching & Excavating 57176 State HWY T Knox City MO 63446 (660) 342-0321 Knox Adair Lewis Scotland Macon

Nelson Steven E 8/31/2019 Nelson Electric LLC 102 W. Jackson Lancaster MO 63548 (660) 457-3985 Schuyler, Putnam, Adair, Scotland

Oberholtzer Marlin N 2/28/2018 Oberholtzer Plumbing LLC 347 S. Ridge St. Memphis MO 63555 (660) 465-8900 Scotland, Clark, Knox, Schuyler, Lewis

Paul William A 4/30/2018 Paul's Trenching & Backhoe RR 3 Box 20C Kahoka MO 63445 (660) 342-3437 Clark, Lewis, Scotland, Knox


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