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 6/30/2018 Bevan Glenn E Harrisonville Cass
EXPIRED INSTALL 6/30/2018 Blake Jake Buffalo Dallas
EXPIRED INSTALL 6/30/2018 Bradley Donald R Mneosho Newton
EXPIRED INSPECT 6/30/2018 Cawein Joseph Lee St. Peters St. Charles
EXPIRED INSTALL 8/31/2018 Green, Jr Andrew Festus Jefferson
EXPIRED INSTALL 6/30/2018 Holland James W Bucyrus Texas
EXPIRED INSTALL 6/30/2018 Lawrence Billy J Fulton Callaway
EXPIRED INSTALL 6/30/2018 Mitchell Donald K Lake Ozark Camden
EXPIRED INSPECT 6/30/2018 Morgan Carol A Zalma Bollinger
EXPIRED INSTALL 6/30/2018 Mudd Jesse T Fulton Callaway
EXPIRED INSTALL 8/31/2018 Potthoff Robert G Troy Lincoln
EXPIRED INSTALL 6/30/2018 Seel Jeremy S Iberia Miller
EXPIRED INSTALL 6/30/2018 Sherrill William "Scott" Goodman McDonald
EXPIRED INSPECT 6/30/2018 Strobel Mark A Jefferson City Cole
EXPIRED INSTALL 8/31/2018 Thomas David E Lincoln Benton


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

(updated 9/21/18)