GroundRosterLicensed Well and Septic Contractors: Clinton County, IL
21 licensed well and septic pros based in Clinton County. Every license number below is sourced from public licensing records, with a link to look it up yourself.
Grouped by the county of the address on each license record, which can be a mailing address, so it doesn't tell you where the business works. When the record names no county, we place it by ZIP code, then town.
Checked against Illinois Dept. of Public Health - Water Well Contractor licences and Illinois Dept. of Public Health - Private Sewage Installation & Pumping licence lookup. Roster copy last refreshed 2026-10-03.
Towns in Clinton County
All 6 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Clinton County records
Each class as the issuing agency prints it on the license record. A record that names more than one class counts once under each, so the rows can add up to more than 21.
| License class | Trade | Listings |
|---|---|---|
| Private Sewage Installation License | Septic | 9 |
| Private Sewage Pumping License | Septic | 4 |
| Water Well Pump Installation Contractor | Well | 4 |
| Water Well and Pump Installation Contractor | Well | 3 |
| Water Well Contractor | Well | 1 |
Septic Contractors based in Clinton County (13)
Roger Jerome KoerkenmeierLicensed
Randolph J. GebkeLicensed
James C. MarkusLicensed
Daniel C. KohnenLicensed
Tyler Louis KramerLicensed
Brian Louis KramerLicensed
Kevin J. WilburnLicensed
Ralph Bernard RakersLicensed
Nathan Alan StrubhartLicensed
Robert L AtesLicensed
Matthew C MarkusLicensed
Joshua J LeathLicensed
Keith V LampeLicensed
Water Well Contractors based in Clinton County (8)
Kyle D ToenniesLicensed
Randolph J GebkeLicensed
Arnold H Steinkamp
Gregory Lynn WilburnLicensed
Ralph HaakeLicensed
Troy A LoepkerLicensed
Kohnen Concrete ProductsLicensed
Daniel C. KohnenLicensed
Own one of these businesses? Find your listing and claim it.
Looking for a specific contractor? Search by name, business name, or license number.
Services in Clinton County, with national cost ranges
Listings based in Clinton County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Clinton County | National cost |
|---|---|---|
| Septic Tank Pumping | 0 | $250 to $600 |
| Septic System Installation | 0 | $3,600 to $12,500 |
| Septic Inspection | 0 | $150 to $900 |
| Septic System Design | 0 | Varies by site |
| Perc Test and Soil Evaluation | 0 | $250 to $1,000 |
| Well Drilling | 1 | $5,500 to $35,000 |
| Well Pump Repair | 7 | $1,000 to $2,500 |
None of the listings based in Clinton County hold a license class we can match to septic tank pumping, septic system installation, septic inspection, septic system design or perc test and soil evaluation. Ask any contractor whether they do this work, or try a nearby city.
Hiring a well and septic professional in Clinton County
Before you sign anything: confirm the license on this page is still active with the agency that issued it, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.