Stage 1 Fire Restrictions in effect for unincorporated areas of western Boulder County (map) (More…)

Boulder County COVID-19 status is at Level Clear | Vaccine locations and info available in English and Spanish.

Water
moose drinking water

Water Quality

Boulder County works to improve water quality, prevent waterborne illness, and reduce negative environmental and public health impacts to our local water sources.

Blue green algae

Blue-Green Algae

Be cautious of algal blooms in lakes and ponds. Boulder County does not test for toxic algae.

bottles of prescription medication

Pharmaceutical Disposal

Reduce the amount of chemicals that reach our waterways by following simple steps for home disposal or by dropping your pharmaceuticals off at a designated site. Learn more about home disposal and drop-off events.

septic tank lid

SepticSmart (Onsite Wastewater Systems)

Septic systems are a common source of groundwater contamination in our country. Unapproved, aging, and failing septic systems have a large impact on the quality and safety of our water supply. Check the records for your septic system and learn more about property transfer requirements.

girl drinking a glass of water

Well Water

Unlike a public drinking water system, private wells do not have experts regularly checking the water quality before it is sent to the tap. Private well water quality varies from source to source.