Septic system requirements in Williams County, North Dakota
The septic rules landplan.io applies in Williams County, what a septic tank costs there, and the parcel data we hold.
Updated
Design a septic system for an address in Williams County
North Dakota's state rules apply in Williams County: landplan.io has no county rules of its own here. State rules: Reviewed See North Dakota's rules
Septic systems allowed in Williams County
The system types landplan.io permits in Williams County:
- Elevated Sand Mound System
- Subsurface Pressure Trench System
- Subsurface Trench System
- Infiltrator Advanced Treatment Leachfield
- Infiltrator Advanced Enviro-Septic® (AES)
- Discharging System
Septic tank size in Williams 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 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 Williams County
| From | To | Distance |
|---|---|---|
| Point | Well | 50 Ft |
| Polygon | Building | 10 Ft |
| Polygon | Existing Septic Component to be Abandoned | 5 ft |
| Polygon | Streams, lakes or other surface waters | 100 Ft |
These are the values the landplan.io design engine applies in Williams County. Confirm a design with the North Dakota health department or your county's before you build.
Parcel data in Williams County
landplan.io has parcel boundaries for Williams County (99.6% of its area): type an address and the design starts from the parcel.
Septic companies, designers and jobs in North Dakota
- Septic companies and distributors in North Dakota
- Septic designers in North Dakota
- Septic design jobs in North Dakota
Where the rules come from
The regulations and documents landplan.io's Williams County, North Dakota rules are read from:
- Private Sewage Disposal Systems (N.D. Admin. Code (NDAC) 62-03.1-03)
- Onsite Wastewater Treatment System Installers Licensing (N.D. Admin. Code (NDAC) 33.1-21-01)
Near Williams County
- Divide County
- Mckenzie County
- Mountrail County
- Burke County
- Dunn County
- Renville County
- Ward County
- Billings County
- All of North Dakota
Questions
What septic systems are allowed in Williams County?
landplan.io designs by North Dakota's state rules there and permits: Elevated Sand Mound System, Subsurface Pressure Trench System, Subsurface Trench System, Infiltrator Advanced Treatment Leachfield, Infiltrator Advanced Enviro-Septic® (AES) and Discharging System.
What size septic tank do I need in Williams County?
landplan.io sizes the septic tank in Williams County 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.
How far must a septic system be from a well in Williams County?
landplan.io keeps these distances in Williams County: Point to well: 50 Ft.
Does landplan.io have parcel data for Williams County, North Dakota?
Yes: parcel boundaries cover Williams County (99.6% of its area).