GroundRosterD. Duwe Professional Services
| Name | D. Duwe Professional Services |
| License type | Well & Septic Inspector, Soil Tester |
| Based in | Elkhorn, Wisconsin 53121 |
| Work types on the roster | Inspection, Soil Testing |
| Phone | (262) 728-8063 |
"Based in" is the city on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
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What this license covers
- Inspection: licensed to inspect existing septic systems; the license you want for a home-purchase inspection.
How to verify this license
We publish the license details exactly as they appear in Wisconsin's official licensing records; we do not vouch for the business itself. Before hiring, look up this license directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Walworth County POWTS Program, last checked 2026-08-19. Verify at the official source.
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