Petersen - GPM Well Testing and Water Treatment Services LLC
Verified against CSLB on · View on CSLB
License details
- License number
- 985445
- License term on file
- July 25, 2013 – July 31, 2027
Business
- (707) 823 4102 (CSLB public record)
- 5434 OLD REDWOOD HIGHWAY, Santa Rosa, CA 95403Sonoma County
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What to check next
Frequently asked questions
Is Petersen - GPM Well Testing and Water Treatment Services LLC licensed in California?
Yes. Petersen - GPM Well Testing and Water Treatment Services LLC holds an active California state contractor license (CSLB #985445), verified against the CSLB public record on June 17, 2026.
What is Petersen - GPM Well Testing and Water Treatment Services LLC's CSLB license number?
Petersen - GPM Well Testing and Water Treatment Services LLC's California contractor license number is 985445. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.
What kind of work is Petersen - GPM Well Testing and Water Treatment Services LLC licensed for?
Petersen - GPM Well Testing and Water Treatment Services LLC is classified under Water Conditioning (C-55), Well Drilling (C-57), and Machinery and Pumps (D-21) by the CSLB.
How do I verify Petersen - GPM Well Testing and Water Treatment Services LLC's license myself?
Look up license #985445 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of June 17, 2026.
Verify it yourself: How to verify a California contractor license · Look up #985445 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.