Verified licenseActive

Koenig Drilling

Cotati, CA · Sonoma County · Well drilling and pump installation

  • Pump Installation
  • Pump Repair
  • Well Abandonment
  • Well Drilling
  • Well Repair
Call (707) 888-9617Website

License record

Verified against state records
License number
1038648
License type
Well drilling and pump installation
Status
Active
Expires
April 30, 2028
Last verified
September 29, 2026

Check this license yourself on the official California lookup.

Services on the state record

Holds an active California C-57 Well Drilling contractor license (CSLB license 1038648, sole owner, first issued 2018, current through 2028-04-30). The C-57 classification covers drilling, casing, cleaning, repairing and destroying water wells and installing and repairing well pumps. Filed 44 well completion reports with the Department of Water Resources since 2016 (39 new wells, 39 of them domestic supply; 5 well destructions), most recently in June 2026, mostly in Sonoma, Marin and Napa counties.

Service area

  • Sonoma County
  • Marin County
  • Napa County

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