Septic system requirements in Utah
What landplan.io applies when it designs a septic system in Utah: the system types allowed, tank sizes, setbacks and soil loading rates, with what septic products cost there.
Updated
Design a septic system for an address in Utah
Reviewed landplan.io designs by Utah's own rules, which our staff reviewed against the state's regulations. Last published 5 October 2026.
Septic systems allowed in Utah
The system types landplan.io permits in Utah:
- Mound System
- At Grade Systems
- Drip-Line Dispersal
- Pressure Distribution Trenches
- Absorption Trenches
- Packed Bed Media
- Pressurized Packed Bed Media
- Discharging System
Septic tank size in Utah
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 240 gal/day | 1,000 gallons |
| 240 to 360 gal/day | 1,500 gallons |
| 360 to 600 gal/day | 2,000 gallons |
| 600 to 720 gal/day | 2,500 gallons |
| 720 to 840 gal/day | 2,750 gallons |
| 840 to 920 gal/day | 3,000 gallons |
| 920 to 1,040 gal/day | 3,250 gallons |
Septic setbacks in Utah
| From | To | Distance |
|---|---|---|
| Polygon | Existing Septic Component to be Abandoned | 5 ft |
These are the values the landplan.io design engine applies in Utah. Confirm a design with the Utah health department or your county's before you build.
Parcel data in Utah
landplan.io has parcel boundaries for 15 of Utah's 29 counties, and part of 12 more: the counties where 82.4% of the state's people live. Type an address there and the design starts from the parcel.
Septic companies, designers and jobs in Utah
Where the rules come from
The regulations and documents landplan.io's Utah rules are read from:
Septic rules by county in Utah
- Beaver County
- Box elder County
- Cache County
- Carbon County
- Daggett County
- Davis County
- Duchesne County
- Emery County
- Garfield County
- Grand County
- Iron County
- Juab County
- Kane County
- Millard County
- Morgan County
- Piute County
- Rich County
- Salt lake County
- San Juan County
- Sanpete County
- Sevier County
- Summit County
- Tooele County
- Uintah County
- Utah County
- Wasatch County
- Washington County
- Wayne County
- Weber County
Questions
What septic systems are allowed in Utah?
landplan.io permits these system types in Utah: Mound System, At Grade Systems, Drip-Line Dispersal, Pressure Distribution Trenches, Absorption Trenches, Packed Bed Media, Pressurized Packed Bed Media and Discharging System.
What size septic tank do I need in Utah?
landplan.io sizes the septic tank in Utah from the daily design flow: up to 240 gal/day: 1,000 gallons; 240 to 360 gal/day: 1,500 gallons; 360 to 600 gal/day: 2,000 gallons; larger flows need larger tanks. A home's design flow is 150 gal/day per bedroom, at least 300 gal/day.
Does landplan.io have parcel data in Utah?
Yes, for 15 of Utah's 29 counties, and part of 12 more.