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Septic system requirements in Lexington County, South Carolina

The septic rules landplan.io applies in Lexington County, what a septic tank costs there, and the parcel data we hold.

Updated

Design a septic system for an address in Lexington County

South Carolina's state rules apply in Lexington County: landplan.io has no county rules of its own here. State rules: Reviewed See South Carolina's rules

6system types permitted
1,000 gallonssmallest septic tank
Coveredparcel data

Septic systems allowed in Lexington County

The system types landplan.io permits in Lexington County:

Septic tank size in Lexington County

The daily design flow of a home: 150 gal/day per bedroom, at least 240 gal/day. The septic tank is sized from that flow:

Septic Tank: minimum size by daily design flow
Daily design flowMinimum tank
up to 240 gal/day1,000 gallons
240 to 360 gal/day1,500 gallons
360 to 600 gal/day2,000 gallons
600 to 720 gal/day2,500 gallons
720 to 840 gal/day2,750 gallons
840 to 920 gal/day3,000 gallons
920 to 1,040 gal/day3,250 gallons

Septic setbacks in Lexington County

Minimum distances
FromToDistance
PolygonExisting Septic Component to be Abandoned5 ft

These are the values the landplan.io design engine applies in Lexington County. Confirm a design with the South Carolina health department or your county's before you build.

Parcel data in Lexington County

landplan.io has parcel boundaries for Lexington County (96.1% of its area): type an address and the design starts from the parcel.

Septic companies, designers and jobs in South Carolina

Where the rules come from

The regulations and documents landplan.io's Lexington County, South Carolina rules are read from:

Near Lexington County

Questions

What septic systems are allowed in Lexington County?

landplan.io designs by South Carolina'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 Lexington County?

landplan.io sizes the septic tank in Lexington 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 240 gal/day.

Does landplan.io have parcel data for Lexington County, South Carolina?

Yes: parcel boundaries cover Lexington County (96.1% of its area).