Registered onsite wastewater professionals in Jefferson County, Missouri
41 people on Missouri’s roster of individually registered onsite wastewater professionals give Jefferson County as their address. A registered professional is someone who holds a Missouri onsite wastewater registration personally.
| Name | Licence | City | Expires |
|---|---|---|---|
| Benjamin Cocos | Basic InstallerNo. 37251 | St Louis | August 31, 2026 |
| Brenda Rush | Onsite Soil EvaluatorNo. 50694 | Dittmer | April 30, 2027 |
| Brent Schrum | Advanced InstallerNo. 31877 | DeSoto | August 31, 2026 |
| Brice Gansner | Advanced InstallerNo. 34297 | Festus | May 31, 2028 |
| Bryon Madonna | Advanced InstallerNo. 37698 | Hillsboro | November 30, 2025 |
| Bryon Madonna | Onsite Soil EvaluatorNo. 51199 | Hillsboro | July 31, 2026 |
| Charles Robinson | Advanced InstallerNo. 30936 | Festus | December 31, 2028 |
| Christopher Masters | Advanced InstallerNo. 38662 | De Soto | March 31, 2026 |
| Curtis Burns | Basic InstallerNo. 39322 | Fenton | January 31, 2028 |
| Dan Hickman | Advanced InstallerNo. 38071 | DeSoto | May 31, 2027 |
| Daniel Larkin | Advanced InstallerNo. 33877 | Fenton | August 31, 2028 |
| Daniel Larkin | Advanced InstallerNo. 33877 | Fenton | August 31, 2028 |
| Darren Taylor | Advanced InstallerNo. 37626 | Festus | July 31, 2028 |
| Don Haefner | Onsite Soil EvaluatorNo. 50225 | Farmington | October 31, 2026 |
| Dustin Smith | Advanced InstallerNo. 39046 | Cadet | December 31, 2026 |
| Eric Ehlen | Basic InstallerNo. 39419 | Fenton | May 31, 2028 |
| Frank Marchesi, Jr | Advanced InstallerNo. 33719 | St. Charles | August 31, 2028 |
| Gary Cannon | Basic InstallerNo. 37386 | Moscow Mills | April 30, 2027 |
| Gary Lalumandier | Basic InstallerNo. 37242 | Bloomsdale | August 31, 2026 |
| Gregory Hensley Jr | Advanced InstallerNo. 30502 | Pevely | February 28, 2026 |
| Harold Townsend | Basic InstallerNo. 32409 | St. Charles | November 30, 2026 |
| James Lewis | Advanced InstallerNo. 37631 | Hillsboro | July 31, 2028 |
| James Parker | Basic InstallerNo. 39150 | Warrenton | May 31, 2027 |
| Jeff Roderfeld | Advanced InstallerNo. 32371 | St. Charles | July 30, 2028 |
| John Kuchar | Advanced InstallerNo. 39313 | Hillsboro | December 31, 2027 |
| Joseph Stabenow | Advanced InstallerNo. 36865 | Festus | May 31, 2027 |
| Justin Hudson | Advanced InstallerNo. 37232 | Hillsboro | August 31, 2026 |
| Justin Manley | Basic InstallerNo. 39018 | St. Louis | December 31, 2026 |
| Kevin Klodt | Advanced InstallerNo. 39383 | Festus | March 31, 2028 |
| Kevin Robben Jr | Basic InstallerNo. 37120 | Desoto | November 30, 2025 |
| Kevin Robben Jr | Onsite Soil EvaluatorNo. 51071 | Desoto | June 30, 2026 |
| Matthew Schaper | Advanced InstallerNo. 37238 | Foristell | August 31, 2026 |
| Michael Casey | Advanced InstallerNo. 37139 | Festus | January 31, 2026 |
| Randy Pinson | Basic InstallerNo. 31383 | Cadet | September 30, 2028 |
| Raymond Jones | Advanced InstallerNo. 30923 | De Soto | February 28, 2026 |
| Robert Scherrer | Advanced InstallerNo. 32169 | Bonne Terre | February 28, 2026 |
| Ryan Wallis | Advanced InstallerNo. 36062 | Bismark | December 31, 2027 |
| Samuel Ebegbodi | Advanced InstallerNo. 37690 | St. Louis | November 30, 2025 |
| Steven Hardin | Advanced InstallerNo. 39078 | DeSoto | March 31, 2027 |
| Stjepan Dizdar | Basic InstallerNo. 32157 | St. Louis | March 31, 2028 |
| Timothy Myers | Advanced InstallerNo. 30058 | Desoto | August 31, 2026 |
What “Registered onsite wastewater professional” means in Missouri
Being on this roster means Missouri DHSS has licensed this person for holds a Missouri onsite wastewater registration personally. It is not a rating, a review, or a statement about price, insurance or workmanship.
Registrations carry an expiration date, shown on every listing. The state republishes the dataset as registrations change.
Before you hire, confirm the licence with Missouri DHSS, or the state's own published registration data. How to verify →
Registered onsite wastewater professionals in neighbouring counties
Records as published August 26, 2026. Report a correction.