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 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.