Septic system requirements in Buncombe County, North Carolina
The septic rules landplan.io applies in Buncombe County, what a septic tank costs there, and the parcel data we hold.
Updated
Design a septic system for an address in Buncombe County
North Carolina's state rules apply in Buncombe County: landplan.io has no county rules of its own here. State rules: Reviewed See North Carolina's rules
Septic systems allowed in Buncombe County
The system types landplan.io permits in Buncombe County:
- Elevated Mound System
- Drip Dispersal System
- Low Pressure Trench System
- Conventional Nitrification Trenches
- Discharging System
Septic tank size in Buncombe County
The daily design flow of a home: 120 gal/day per bedroom, at least 240 gal/day. The septic tank is sized from that flow:
| Daily design flow | Minimum tank |
|---|---|
| up to 360 gal/day | 900 gallons |
| 360 to 480 gal/day | 1,000 gallons |
| 480 to 600 gal/day | 1,250 gallons |
Septic setbacks in Buncombe County
| From | To | Distance |
|---|---|---|
| LineString | Any other stream, canal, marsh, or other surface waters | 50 Ft |
| LineString | Any water line | 10 Ft |
| LineString | Downslope to Interceptor drains, foundation drains, storm water diversions | 25 Ft |
| LineString | Groundwater lowering devices | 25 Ft |
| LineString | Property Line | 10 Ft |
| LineString | Public water supply source | 100 Ft |
| LineString | Sideslope to Interceptor drains, foundation drains, storm water diversions | 15 Ft |
| LineString | Top of slope of embankments or cuts of 2 feet or more vertical height | 15 Ft |
| LineString | Upslope to Interceptor drains, foundation drains, storm water diversions | 10 Ft |
| LineString | Waters classified as S.A. from mean high water mark | 100 Ft |
| Point | Private water supply source, well or spring | 100 Ft |
| Polygon | Any Class I or Class II resevoir | 100 Ft |
| Polygon | Any other nitrification field (except repair area) | 20 Ft |
| Polygon | Any permanent storm water retention pond from flood pool elevation | 50 Ft |
| Polygon | Basement | 15 Ft |
| Polygon | Building foundation | 5 Ft |
| Polygon | Existing Septic Component to be Abandoned | 5 ft |
| Polygon | Other coastal waters from mean high water mark | 50 Ft |
| Polygon | Swimming pool | 15 Ft |
These are the values the landplan.io design engine applies in Buncombe County. Confirm a design with the North Carolina health department or your county's before you build.
Parcel data in Buncombe County
landplan.io has parcel boundaries for Buncombe County (99.6% of its area): type an address and the design starts from the parcel.
Septic companies, designers and jobs in North Carolina
- Septic companies and distributors in North Carolina
- Septic designers in North Carolina
- Septic design jobs in North Carolina
Where the rules come from
The regulations and documents landplan.io's Buncombe County, North Carolina rules are read from:
Near Buncombe County
- Henderson County
- Madison County
- Yancey County
- Haywood County
- Mcdowell County
- Polk County
- Transylvania County
- Mitchell County
- All of North Carolina
Questions
What septic systems are allowed in Buncombe County?
landplan.io designs by North Carolina's state rules there and permits: Elevated Mound System, Drip Dispersal System, Low Pressure Trench System, Conventional Nitrification Trenches and Discharging System.
What size septic tank do I need in Buncombe County?
landplan.io sizes the septic tank in Buncombe County from the daily design flow: up to 360 gal/day: 900 gallons; 360 to 480 gal/day: 1,000 gallons; 480 to 600 gal/day: 1,250 gallons. A home's design flow is 120 gal/day per bedroom, at least 240 gal/day.
How far must a septic system be from a well in Buncombe County?
landplan.io keeps these distances in Buncombe County: Point to private water supply source, well or spring: 100 Ft.
Does landplan.io have parcel data for Buncombe County, North Carolina?
Yes: parcel boundaries cover Buncombe County (99.6% of its area).