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Sullivan Septic LLCLicensed

Licensed septic contractor based in Longmont, CO

License details

License typeLicensed OWTS Installer
License statusLicensed, Larimer County
Based inLongmont, Colorado
Licensed byLarimer County

"Based in" is the city 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 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 this license directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Source: Larimer County Department of Health & Environment, last checked 2026-08-19. Look it up at the issuing agency.

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