On-site Wastewater Treatment Systems

Colorado Regulation 43

Silver Thread Public Health District (STPHD) OWTS Rules & Regulations

OWTS Permit Application (download file to computer then open to complete and send)

Individual On-site Wastewater Treatment Systems are regulated by Regulation 43 in the State of Colorado.  Please contact the Mineral County Land Use Office at 719-658-2360 for any question regarding an OWTS.  OWTS Systems are now designed based on the soil content of that property.  The percolation test is not a valid test for designing an OWTS.  An OWTS system in Mineral County has to be designed by a licensed Professional Engineer from the State of Colorado. 

Current Mineral County OWTS Licensed Installers:

Helpful Links

National Association of Wastewater Technicians
Colorado Professionals in Onsite Wastewater
Homeowner's Guide to Septic Systems


Contact Mineral County Land Use Office:

Roger Duncan
719-658-2360
landuseoffice@mincocolo.com