Tanko Well Drilling, C-57 Well Drilling Contractor in Altaville, CA
Tanko Well Drilling operating as a corporation holds California contractor license #423959, which is currently expired (lapsed Jun 30, 2026) and not valid to contract until it is renewed. First issued in 1982, the license has been on the CSLB roster for 44 years. It carries a single CSLB classification: C-57 — Well Drilling Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from State Compensation Insurance Fund. The business is based in Altaville, in Calaveras County, California.
- License Number
- 423959
- Issued
- Jun 10, 1982
- Status
- CLEAR
- Expires
- Jun 30, 2026
- Entity
- Corporation
- Surety
- American Contractors Indemnity Company
- Bond Number
- 68230
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- State Compensation Insurance Fund
- Policy Number
- 9067022
- Effective
- Jul 31, 2013
- Expires
- Jan 1, 2027
This contractor has a compliance issue in its public CSLB record:
- License expired
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Tanko Well Drilling licensed in California?
Tanko Well Drilling previously held California Contractors State License Board license number 423959, but the license expired on June 30, 2026 and is not currently valid. It was first issued on June 10, 1982.
What does Tanko Well Drilling specialize in?
Tanko Well Drilling is licensed for one CSLB classification: C-57 Well Drilling Contractor.
Where is Tanko Well Drilling headquartered?
Tanko Well Drilling is headquartered at P O Box 101, Altaville, CA 95221, in Calaveras County, California.
Does Tanko Well Drilling have an active surety bond on file with CSLB?
Yes. Tanko Well Drilling has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Tanko Well Drilling carry workers' compensation coverage?
Yes. Tanko Well Drilling carries active workers' compensation coverage through State Compensation Insurance Fund.
How do I verify Tanko Well Drilling's contractor license?
You can verify Tanko Well Drilling's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=423959.
- License issuedJun 10, 1982
- WC coverage startsJul 31, 2013
- Bond activeJan 1, 2023
- License expiredJun 30, 2026
- WC expiresJan 1, 2027
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