Commissioners: “We will continue to value, respect, and support all individuals as we serve the people of Boulder County.” Read full message.

Immigrant Resources, including a Know Your Rights Booklet, available on the Immigration Resources webpage.

Boulder County government offices closed Monday, May 26, in observance of Memorial Day.

SepticSmart

SepticSmart (Onsite Wastewater Treatment Systems)

Our office is closed to the public. To schedule an inspection, please call 303-441-1564 and leave a voice message.

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Check Septic Records

Septic systems are the second most frequently cited source of groundwater contamination in our county. Unapproved, aging, and failing septic systems have a significant impact on the quality and safety of our water supply.

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Apply for a Permit or Property Transfer Certificate

Septic worker inserts hose to pump home sewage from septic tank.

Onsite Wastewater Treatment System (OWTS) Professionals

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General Information for Property and Homeowners

Related Links

Onsite Wastewater Treatment System Data