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
Status Registration Date of Expiration Last Name First Name MI City County
EXPIRED INSTALL 2/28/2023 Achurch Roger W. Steelville Crawford
EXPIRED INSTALL 2/28/2023 Akins Daryl D Creighton Henry
EXPIRED INSTALL 2/28/2023 Barry Anthony (Tony) Park Hills St. Francois
REG INSTALL 3/31/2023 Bartley Gary Gravois Mills Morgan
EXPIRED INSTALL 2/28/2023 Bennett Bernett M Barnhart Jefferson
REG INSTALL 2/28/2023 Bennett William Lynn Fair Grove Greene
SS OSE 3/31/2023 Berka Douglas R Kansas City Platte
EXPIRED INSTALL 2/28/2023 Blair Michael L. Camdenton Camden
EXPIRED INSTALL 1/31/2023 Blattel Patrick M. Forristel Warren
EXPIRED INSPECT 1/31/2023 Bullock Travis M Gravois Millls Morgan
EXPIRED INSTALL 2/28/2023 Butterfield Erick S Eldorado Springs Cedar
EXPIRED INSTALL 1/31/2023 Calhoun Chandra S Greene
EXPIRED INSTALL 2/28/2023 Carter John J Harrisburg Boone
EXPIRED INSTALL 2/28/2023 Castro James A. St. Charles
EXPIRED INSTALL 2/28/2023 Childress Cole B. Lebanon Laclede
INSP INSPECT 3/31/2023 Christiansen Adam D Kearney Clay
EXPIRED INSTALL 2/28/2023 Coplin James Labadie Jefferson
SS OSE 3/31/2023 Cox Rickey G. Joplin Jasper
REG INSTALL 3/31/2023 Craig Wade (Tom) T Cole Camp Benton
EXPIRED INSTALL 2/28/2023 Cunningham Terry J Greene
EXPIRED INSTALL 2/28/2023 Dannenmueller James P. Scott City Scott
EXPIRED INSTALL 1/31/2023 Davault Josiah J. Marble Hill Bollinger
EXPIRED INSTALL 1/31/2023 Davis Derek E Nelson Saline
EXPIRED INSTALL 2/28/2023 Dorris Rocky C Poplar Bluff Butler
EXPIRED INSTALL 2/28/2023 Eales Bradley T Excelsior Springs Clay
INSP INSPECT 3/31/2023 Eales Bradley T Excelsior Springs Clay
EXPIRED INSTALL 2/28/2023 Eilenstine III Paul (Bo) K Lebanon Laclede
EXPIRED INSTALL 1/31/2023 Escobar John R Hollister Stone
EXPIRED INSTALL 1/31/2023 Estes Jason L Charleston Scott
EXPIRED INSTALL 2/28/2023 Evans Riley J. St. Joseph Buchanan
EXPIRED INSTALL 1/31/2023 Fischer Wayne W Truxton Montgomery
EXPIRED INSTALL 2/28/2023 Fish Randy Maryville Nodaway
EXPIRED INSTALL 1/31/2023 Fleming Ryan D Kingston Caldwell
SS OSE 3/31/2023 Fletcher Mike Grove Jasper
EXPIRED INSTALL 1/31/2023 Gaines Jarrett B. Marble Hill Bollinger
EXPIRED INSTALL 2/28/2023 Gilton Jr Ray G Poplar Bluff Butler
EXPIRED INSTALL 1/31/2023 Gottman Rick Palmyra Marion
EXPIRED INSTALL 1/31/2023 Gravitt Michael Columbia Boone
EXPIRED INSTALL 1/31/2023 Grooms Brandon S. Kidder Daviess
EXPIRED INSTALL 2/28/2023 Gust Terry M. Edwardsville Out of State
EXPIRED INSTALL 1/31/2023 Haupert William F. Lake St. Louis St. Charles
EXPIRED INSTALL 2/28/2023 Hendricks Danny B. Washburn State
EXPIRED INSTALL 1/31/2023 Hicks Dick Gladstone Out of State
REG INSTALL 3/31/2023 Hilgedick Benjamin J Columbia Boone
EXPIRED INSTALL 1/31/2023 Hill Justin Columbia Boone
EXPIRED INSTALL 1/31/2023 Hinkle James Dale Washington Franklin
EXPIRED INSTALL 1/31/2023 Hoelscher George W Warrenton Warren
EXPIRED INSTALL 2/28/2023 Hofstetter Keenan W. Leasburg Crawford
EXPIRED INSTALL 1/31/2023 Hoover Jim D St Joseph Andrew
EXPIRED INSTALL 2/28/2023 Jacobs Johnathan C. Eagleville Harrison
EXPIRED INSTALL 2/28/2023 Jonassen Andrew Wright
EXPIRED INSTALL 2/28/2023 Jones Jay R. Camden
REG INSTALL 3/31/2023 Jones Kelly G Garrison Christian
EXPIRED INSTALL 2/28/2023 Key Randy L Wright City Warren
SS OSE 3/31/2023 Kluender Bob W Perryville Perry
EXPIRED INSTALL 1/31/2023 Koehn Andrew S Barnett Morgan
EXPIRED INSPECT 1/31/2023 Kramer Ken H Cape Girardeau Cape Girardeau
EXPIRED INSTALL 2/28/2023 Martin Dennis Taylor Marion
EXPIRED INSTALL 2/28/2023 Mason Dennis L Holden Johnson
EXPIRED INSTALL 1/31/2023 McAllister Jeremy T Shenandoah Out of State
REG INSTALL 3/31/2023 McCorkell Shawn J New Florence Montgomery
EXPIRED INSTALL 1/31/2023 Merrell Eugene E. Stilwell Out of State
EXPIRED INSTALL 2/28/2023 Monat Forrest M. St. Thomas Cole
EXPIRED INSTALL 2/28/2023 Newman Rick L. Granby Newton
EXPIRED INSTALL 1/31/2023 Payton Joseph E. Neosho Newton
EXPIRED INSTALL 1/31/2023 Payton Rebecca J. Neosho Newton
REG INSTALL 3/31/2023 Pridemore Dan Mountain Grove Wright
EXPIRED INSTALL 1/31/2023 Ratzloff Tony D Smithville Clay
EXPIRED INSTALL 2/28/2023 Reidlinger Al L Fulton Boone
EXPIRED INSTALL 2/28/2023 Reth Richard Long Lane Dallas
EXPIRED INSTALL 2/28/2023 Reynolds Justin T Cameron Clinton
EXPIRED INSPECT 1/31/2023 Riley Jerry Springfield Greene
EXPIRED INSTALL 1/31/2023 Roberts Alan P Bolivar Polk
EXPIRED INSTALL 2/28/2023 Rogers David M New Bloomfield Callaway
EXPIRED INSTALL 2/28/2023 Rogers Travis W. Stoutland Camden
SS OSE 3/31/2023 Roth Matt W Chesterfield St. Louis
EXPIRED INSTALL 1/31/2023 Schatz Jason M St. Clair Franklin
INSP INSPECT 3/31/2023 Schatz Jason M St. Clair Franklin
REG INSTALL 3/31/2023 Schlotzhauer Warren L New Franklin Howard
EXPIRED INSTALL 2/28/2023 Schrum Skyler Labadie Franklin
EXPIRED INSTALL 2/28/2023 Shoemaker Glenn D. Pettis
EXPIRED INSTALL 2/28/2023 Silber Ben A. Labadie St. Charles
EXPIRED INSTALL 2/28/2023 Silber Tom A. Labadie Franklin
EXPIRED INSTALL 2/28/2023 Simmerman Melvin Stilwell Out of State
EXPIRED INSTALL 1/31/2023 Simpson Dennis E West Plains Howell
EXPIRED INSTALL 2/28/2023 Smith Stephen E. Leasburg Crawford
EXPIRED INSTALL 1/31/2023 Snodgrass Phillip B. Higginsville Lafayette
INSP INSPECT 3/31/2023 Stewart Perry Allan Williamsburg Callaway
EXPIRED INSTALL 1/31/2023 Sweeney Joseph L West Alton St. Charles
EXPIRED INSTALL 1/31/2023 Thompson Tyler L Sunrise Beach Camden
EXPIRED INSTALL 1/31/2023 Tigert Troy H. Gravois Mills Morgan
EXPIRED INSTALL 1/31/2023 VanCardo Brian J. St. Charles St. Louis
EXPIRED INSTALL 1/31/2023 Vanderveld James S Kaiser Miller
EXPIRED INSTALL 1/31/2023 Wallace Tori L. Scott
EXPIRED INSPECT 1/31/2023 Wallis Ryan J Bismarck St. Francois
EXPIRED INSTALL 2/28/2023 Wendell Michael E Park Hills St. Francois
EXPIRED INSTALL 1/31/2023 White John Sam Stewartsville Dekalb
EXPIRED INSTALL 1/31/2023 Wiese Lance Bourbon Crawford
EXPIRED INSTALL 2/28/2023 Wilson Michael R. Salem Dent
EXPIRED INSPECT 1/31/2023 Yarbrough David Matthews New Madrid

 

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