Gunnison Valley · Colorado

Gunnison & Crested Butte septic & civil engineering

Cold-climate wastewater, deep frost, and high-value trout water to protect.

The Gunnison Valley runs cold. Frost depth, short seasons, and nutrient-sensitive trout water mean wastewater systems need insulation strategy, dosing, and often a higher treatment level than the minimum.

We design OWTS, site grading, and stream-adjacent site work with the receiving water in mind — this is the river we fish, and we design like it.

What we design in Gunnison & Crested Butte

  • Cold-climate OWTS with insulation and pressure dosing
  • Higher treatment level (TL2/TL3) designs near sensitive water
  • Stream setback, bank stability, and riparian site layout
  • Snow storage, plowing, and access grading
  • Off-grid power and water infrastructure

Local code & permitting notes

  • Gunnison County Environmental Health permits OWTS under Colorado Regulation 43.
  • Proximity to the Gunnison River and tributaries can raise required treatment level.
  • Frost depth and seasonal access affect construction sequencing and design detailing.

Code references are summaries for planning. Final requirements come from the permitting authority at the time of submittal.