GroundRosterFredrick Mark Pump & Supply COLicensed
License details
| License number | 333800 |
| License type | Well Drilling Contractor (C-57) |
| License status | Active, CSLB license CLEAR |
| License expires | August 31, 2028 |
| Based in | Jackson, Amador County, California 95642 |
"Based in" is the city and county of the address on the business's license record.
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 the public licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #333800 directly with the agency that issued it, 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. Look it up at the issuing agency.
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See every listing based in Amador County or in Jackson.