GroundRosterR W R Construction INCLicensed
| Name | R W R Construction INC |
| License number | 527433 |
| License type | Well Drilling Contractor (C-57) |
| License status | Active — CSLB license CLEAR |
| License expires | 2027-08-31 |
| Based in | San Rafael, California 94901 |
| Phone | (415) 457-5658 |
"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
- Drilling / construction: licensed to bore, case, complete, and plug water wells.
How to verify this license
We publish the license details exactly as they appear in California's official licensing records; we do not vouch for the business itself. Before hiring, look up license #527433 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: California Contractors State License Board (CSLB), last checked 2026-08-17. Verify at the official source.
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