OWTS Professional Registrations Expiring
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.