Can I install a bathroom in a garage, barn, etc., and connect it to my existing on-site wastewater treatment system (OWTS)?
Tri-County Health Department (TCHD) generally allows connection to the existing septic system, provided the owner notifies TCHD in advance, and TCHD approves the connection. An inspection of the new plumbing and applicable fee(s) is required. Prior to final approval, the existing as built drawing of the system must also be amended to show new buildings and plumbing. Contact one of our four Environmental Health offices prior to starting your project.

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1. How do I get a permit to build a new, or repair an on-site wastewater treatment system (OWTS)?
2. Under what conditions must an on-site wastewater treatment system (OWTS) be designed by a Colorado Licensed Professional Engineer?
3. How do I get a Use Permit?
4. Who can do Use Permit inspections?
5. I am moving and need to get my septic system certified. What do I do?
6. What is the minimum lot size for an on-site wastewater treatment system (OWTS)?
7. How often do I need to pump my septic tank?
8. Will I be able to irrigate or have horses where my Soil Treatment Area (STA) is located?
9. Can I install a bathroom in a garage, barn, etc., and connect it to my existing on-site wastewater treatment system (OWTS)?
10. I am unsure where my onsite waste water treatment system (OWTS) is located. Do you have records of my system?
11. I accidentally damaged some components of my septic system. Who should I call to inspect and repair the damage? Do I need a permit?