GroundRosterMichael W HamlingLicensed
| Name | Michael W Hamling |
| License number | 5200145 |
| License type | On-Site Wastewater Inspector |
| License status | Active — Washington DOH credential |
| Location | Chehalis, Washington |
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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 this listing exactly as it appears in Washington's official licensing records; we do not vouch for the business itself. Before hiring, look up license #5200145 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Washington State Dept. of Health - Credential Search, last checked 2026-08-17. Verify at the official source.
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