Boulder County government offices closed Monday, Jan. 20, in observance of Martin Luther King 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

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Onsite Wastewater Treatment System (OWTS) Professionals

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General Information for Property and Homeowners

Onsite Wastewater Treatment System Data