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, Feb. 17, in observance of President’s 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.

Woman working on laptop online, checking emails and planning on the internet while sitting in an office alone at work. Business woman, corporate professional or manager searching the internet

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.

hand using wi-fi internet on computer, reading email, online banking service

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

Senior Ethnic Hispanic Female Active Outdoors on an Autumn Evening Trimming Flowering Yard Plants Mild Outdoor Activities

General Information for Property and Homeowners

Onsite Wastewater Treatment System Data