Boulder County government offices are closed Thursday, July 4, and Friday, July 5, in observance of Independence Day.

Stage 1 fire restrictions, enacted for unincorporated areas of western Boulder County.

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