Septic system requirements in San Miguel County, Colorado
The septic rules landplan.io applies in San Miguel County, what a septic tank costs there, and the parcel data we hold.
Updated
Design a septic system for an address in San Miguel County
Colorado's state rules apply in San Miguel County: landplan.io has no county rules of its own here. State rules: Reviewed See Colorado's rules
Septic systems allowed in San Miguel County
The system types landplan.io permits in San Miguel County:
- Mound System
- Non-Pressurized Drip Dispersal Systems (NDDS)
- Leaching Trench System
- In-Ground Bed
- In-Ground Bed Pressure Distribution
- Drip Distribution System
- Infiltrator Advanced Enviro-Septic® (AES)
- Discharging System
Septic tank size in San Miguel County
The daily design flow of a home: 150 gal/day per bedroom, at least 300 gal/day. The septic tank is sized from that flow:
| Daily design flow | Minimum tank |
|---|---|
| up to 450 gal/day | 1,000 gallons |
| 450 to 600 gal/day | 1,250 gallons |
| 600 to 750 gal/day | 1,500 gallons |
| 750 to 900 gal/day | 1,750 gallons |
| 900 to 1,050 gal/day | 2,000 gallons |
| 1,050 to 1,200 gal/day | 2,250 gallons |
| 1,200 to 1,350 gal/day | 2,500 gallons |
| 1,350 to 1,500 gal/day | 2,750 gallons |
| 1,500 to 1,650 gal/day | 3,000 gallons |
| 1,650 to 1,800 gal/day | 3,250 gallons |
| 1,800 to 1,950 gal/day | 3,500 gallons |
| 1,950 to 2,100 gal/day | 3,650 gallons |
Septic setbacks in San Miguel County
| From | To | Distance |
|---|---|---|
| LineString | Cut Bank | 10 ft |
| LineString | Dry Gulch | 10 ft |
| LineString | Fill Area (from Crest) | 10 ft |
| LineString | Intermittent Agricultural Irrigation Lateral | 10 ft |
| LineString | Irrigation Channel | 50 ft |
| LineString | Irrigation Ditch | 10 ft |
| LineString | Potable Water Supply Line | 50 ft |
| LineString | Stream | 50 ft |
| LineString | Subsurface Drain | 10 ft |
| LineString | Upslope Curtain Drain | 10 ft |
| LineString | Watercourse | 50 ft |
| Point | Drywell | 10 ft |
| Point | Spring or Well, Suction Line, Underground Potable Water Supply Cistern | 50 ft |
| Polygon | Existing Septic Component to be Abandoned | 5 ft |
| Polygon | Lake | 50 ft |
| Polygon | Structure w/basement, crawl space or footing drains | 5 ft |
| Polygon | Structure without basement, crawl space or footing drains | 5 ft |
| Polygon | Utility Easement | 10 ft |
| Polygon | Wetland | 50 ft |
Soil loading rates in San Miguel County
| Table | Lowest | Highest | Soil groups |
|---|---|---|---|
| Soil Loading Rate | 0.1 gal/day/ft² | 0.8 gal/day/ft² | 8 |
landplan.io picks the rate from the soil test: texture, structure and percolation.
These are the values the landplan.io design engine applies in San Miguel County. Confirm a design with the Colorado health department or your county's before you build.
Parcel data in San Miguel County
landplan.io has parcel boundaries for San Miguel County (100% of its area): type an address and the design starts from the parcel.
Septic companies, designers and jobs in Colorado
- Septic companies and distributors in Colorado
- Septic designers in Colorado
- Septic design jobs in Colorado
Where the rules come from
The regulations and documents landplan.io's San Miguel County, Colorado rules are read from:
Near San Miguel County
- Dolores County
- Montrose County
- Ouray County
- San Juan County
- Montezuma County
- La plata County
- Hinsdale County
- Delta County
- All of Colorado
Questions
What septic systems are allowed in San Miguel County?
landplan.io designs by Colorado's state rules there and permits: Mound System, Non-Pressurized Drip Dispersal Systems (NDDS), Leaching Trench System, In-Ground Bed, In-Ground Bed Pressure Distribution, Drip Distribution System, Infiltrator Advanced Enviro-Septic® (AES) and Discharging System.
What size septic tank do I need in San Miguel County?
landplan.io sizes the septic tank in San Miguel County from the daily design flow: up to 450 gal/day: 1,000 gallons; 450 to 600 gal/day: 1,250 gallons; 600 to 750 gal/day: 1,500 gallons; larger flows need larger tanks. A home's design flow is 150 gal/day per bedroom, at least 300 gal/day.
How far must a septic system be from a well in San Miguel County?
landplan.io keeps these distances in San Miguel County: Point to spring or well, suction line, underground potable water supply cistern: 50 ft; Point to drywell: 10 ft.
Does landplan.io have parcel data for San Miguel County, Colorado?
Yes: parcel boundaries cover San Miguel County (100% of its area).