Registered/Licensed Onsite Wastewater Treatment System (OWTS) Professionals are required to complete continuing education and renew their registration before the end of a three-year registration period.  The list below includes professionals whose registration/license has recently expired.  Note that the list will be updated regularly.  However, for a short time the list might include a professional’s name even after the individual renewed their registration during the brief grace period allowed. You may request that an OWTS professional show identification and/or proof of registration or contact the Onsite Sewage Program to confirm current registration status.

Explanation of registration notations used in table below:
INSTALL – OWTS Installers, Basic or Advanced
OSE – Onsite Soil Evaluators
PT – Percolation Tester
INSPECT – Existing OWTS System Inspectors (related to property sales)

Click on the above links to access lists of registered/licensed persons

OWTS Professional Registrations Expiring

Status Registration Date of Expiration Last Name First Name MI City County
EXPIRED INSTALL 10/31/2018 Adams Joseph R Festus Jefferson
EXPIRED INSTALL 9/30/2018 Akana Jeffrey K Linn Creek Camden
EXPIRED INSTALL 9/30/2018 Ames Jerry W Huntsville Randolph
EXPIRED INSTALL 10/31/2018 Brown John F Centerview Johnson
EXPIRED INSTALL 10/31/2018 Bush Bret E Kearney Clay
EXPIRED INSTALL 10/31/2018 Chadd Justin B Rogersville Greene
EXPIRED INSTALL 10/31/2018 Coleman William L Warrenton Warren
EXPIRED INSTALL 9/30/2018 Croft Jeffrey D Harrisonville Cass
EXPIRED INSTALL 9/30/2018 Dampier Tanner A Columbia Boone
EXPIRED INSTALL 9/30/2018 Dobsch Adam Washington Franklin
EXPIRED INSTALL 9/30/2018 Flippin Mark W Stover Ste. Genevieve
EXPIRED INSTALL 10/31/2018 Gillett Matt Cabool Texas
EXPIRED INSTALL 9/30/2018 Gilton Shelly M Poplar Bluff Butler
EXPIRED INSTALL 8/31/2018 Green, Jr Andrew Festus Jefferson
EXPIRED INSTALL 9/30/2018 Handlang John W Warrenton Warren
EXPIRED INSTALL 10/31/2018 Hannah Michael P Moscow Mills Lincoln
EXPIRED INSTALL 10/31/2018 Hansen Michael T Springfield Greene
EXPIRED INSTALL 10/31/2018 Haynes Robert W DeSoto Jefferson
EXPIRED INSTALL 10/31/2018 Holt Jonathan A High Ridge Jefferson
EXPIRED INSTALL 10/31/2018 Jeffers Ryan L Plato Texas
EXPIRED INSTALL 9/30/2018 Lile JW W Plattsburg Clinton
EXPIRED INSTALL 10/31/2018 Luecke John T Florissant St. Charles
EXPIRED INSTALL 9/30/2018 Magers Dillon L Ash Grove Greene
EXPIRED INSTALL 10/31/2018 McKee Colby R Ashland Boone
EXPIRED INSTALL 9/30/2018 Miller Jerry L Fredericktown Madison
EXPIRED INSTALL 9/30/2018 Montgomery Dennis R Montgomery City Montgomery
EXPIRED INSTALL 10/31/2018 Mount Josh S Moscow Mills Lincoln
EXPIRED INSTALL 10/31/2018 Norrell James A Osage Beach Camden
EXPIRED INSTALL 9/30/2018 Null Tyler J Warrenton Warren
EXPIRED INSTALL 9/30/2018 Polka Mark R St. Louis St. Louis
EXPIRED INSTALL 8/31/2018 Potthoff Robert G Troy Lincoln
EXPIRED INSTALL 10/31/2018 Price Judd E Columbia Boone
EXPIRED INSTALL 10/31/2018 Price Michael D Shell Knob Barry
EXPIRED INSTALL 9/30/2018 Runkles Mark A Troy Lincoln
EXPIRED INSTALL 10/31/2018 Schuler Sonny J Steedman Callaway
EXPIRED INSTALL 10/31/2018 Schultz Cody Allen Rogersville Webster
EXPIRED INSTALL 10/31/2018 Southwick Murl (Tony) A Kearney Clay
EXPIRED INSTALL 8/31/2018 Thomas David E Lincoln Benton
EXPIRED INSTALL 9/30/2018 Tuggle Kevin F Springfield Greene


Contact us if you have questions about this list, or to update or correct an address.