septic tank cover 

Septic Systems

If your system was impacted by the 2013 Flood, please contact a water quality specialist at 303-441-1564 to discuss any concerns you may have and to learn more about the repair permit process. Water quality specialists may also be available to visit your site to provide further guidance, if needed. You may also contact the Boulder County Flood Rebuilding & Permit Information Center at 303-441-1705 or

Check on Your System

Please consider the state of your septic system now that the flood water has receded. We are counting on you to help in our efforts to maintain clean, healthy waters in Boulder County. Septic systems are the second most frequently cited 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.

If your property was flooded, please walk the area of your onsite wastewater system (OWS) and look for signs of system failure. If your OWS is approved with Boulder County, you can find the permit and final drawing of the system at If you identify damage to your OWS, repairs may be necessary. Please contact our office for further guidance at 303-441-1564.

Signs of Septic System Failure

If any of the following is identified, then a septic system repair permit is likely needed. Please call Boulder County Environmental Health at 303.441.1564 to talk to a Water Quality Specialist.

  • There is a change in grading in the area of the septic system.
  • An area of the septic system has collapsed.
  • There is significant erosion in the area of the septic system.
  • There are signs of exposed gravel, tire chips or chambers in the absorption bed/trench.
  • Parts of the septic system (absorption bed/trench, septic tank, pipes) are exposed.
  • Electrical components or wiring in a lift/pump tank are inundated with water.
  • There are sewage back-ups or very slow sewage drainage inside the home.
  • There is pooling, flowing, or surfacing sewage from the septic system.

Additional Guidance

After assessing your OWS, you may still have questions regarding the functionality of your system. BCPH Water Quality Inspectors are available to council you over the phone, and discuss the results of your assessment. If necessary, our inspectors may be available to visit your site and provide further guidance; however, this additional assistance will be prioritized based on the areas of highest need. Several properties that sustained significant damage have already been assessed by Water Quality Inspectors. Results are being compiled and will be communicated back to property owners by the end of November. If you have general questions regarding land use, transportation, and public health issues, you may contact the Flood Rebuilding & Permit Information Center at 303-441-1705.

Learn More

Colorado Help Line, COHelp at 303-389-1687

Call center staff can answer questions about debris (furniture, carpets, mud, hazardous waste, etc.) removal and collection, mold, and disinfection.

Assistance available in English and Spanish. Toll free 1-877-462-2911.

 Related Links


SepticSmart Program

Submit a question


3450 Broadway
Map & Directions
Hours: 8 a.m.-4:30 p.m. M-F