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Big Dog Construction LLC

Septic contractor based in Sterling, Kenai Peninsula Borough, AK

License details

CompanyMark Mahan
License number1665
License typeDEC Certified Installer
License statusCertified, Alaska DEC installer list, updated July 2026
License expiresMarch 19, 2028
Based inSterling, Kenai Peninsula Borough, Alaska 99672

"Based in" is the city and county of the address on the business's license record.

What this license covers

  • Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.

How to check 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 #1665 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Source: Alaska DEC - Current Certified Installer List, last checked 2026-08-17. Check current status at the state agency website.

GroundRoster is an independent publisher of public licensing records, not a government agency or licensing board. The business has not claimed this listing and is not affiliated with GroundRoster. Always confirm current license standing with the issuing state or county agency before hiring.

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