DCWA Knightsville (SC) Water Quality

DCWA Knightsville is a large public water system in EPA region 4 that provides tap water for the 29483 zip codes. It has 10 facilities where the water supply was tested for 68 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 16.461 µg/L. The maximum reported level of Manganese was 3.69 µg/L. There were 2 contamintants found in the DCWA Knightsville water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (6)

1,2,3-trichloropropane (6)

1,3-butadiene (6)

1,4-dioxane (6)

1-butanol (11)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (10)

1H,1H,2H,2H-perfluorodecane sulfonic acid (10)

1H,1H,2H,2H-perfluorohexane sulfonic acid (10)

1H,1H,2H,2H-perfluorooctane sulfonic acid (10)

2-methoxyethanol (11)

2-propen-1-ol (Allyl Alcohol) (11)

4,8-dioxa-3H-perfluorononanoic acid (10)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (10)

alpha-hexachlorocyclohexane (11)

anatoxin-a (8)

bromochloromethane (Halon 1011) (6)

bromomethane (6)

Butylated Hydroxyanisole (11)

chlorate (10)

chlorodifluoromethane (HCFC-22) (6)

chloromethane (6)

chlorpyrifos (11)

chromium (10)

chromium-6 (10)

cobalt (10)

cylindrospermopsin (8)

dimethipin (11)

ethoprop (11)

Germanium (11)

HAA5 (five regulated haloacetic acids) (16)

HAA6Br (six brominated haloacetic acids) (16)

HAA9 (nine haloacetic acids) (16)

hexafluoropropylene oxide dimer acid (GenX) (10)

lithium (11)

Manganese (11)

molybdenum (10)

N-ethyl perfluorooctanesulfonamidoacetic acid (11)

N-methyl perfluorooctanesulfonamidoacetic acid (11)

nonafluoro-3,6-dioxaheptanoic acid (10)

o-toluidine (11)

oxyfluorfen (11)

perfluoro(2-ethoxyethane)sulfonic acid (10)

perfluoro-3-methoxypropanoic acid (10)

perfluoro-4-methoxybutanoic acid (10)

perfluorobutanesulfonic acid (16)

perfluorobutanoic acid (10)

perfluorodecanoic acid (10)

perfluorododecanoic acid (10)

perfluoroheptanesulfonic acid (10)

perfluoroheptanoic acid (16)

perfluorohexanesulfonic acid (16)

perfluorohexanoic acid (10)

perfluorononanoic acid (16)

perfluorooctanesulfonic acid (16)

perfluorooctanoic acid (16)

perfluoropentanesulfonic acid (10)

perfluoropentanoic acid (10)

perfluorotetradecanoic acid (11)

perfluorotridecanoic acid (11)

perfluoroundecanoic acid (10)

profenofos (11)

quinoline (11)

strontium (10)

tebuconazole (11)

total microcystins (8)

Total Permethrin (11)

tribufos (11)

vanadium (10)

Sampling Facilities

Plant 1 (B18001) WELL 1 (G18113) DORCHESTER
Ground Water (GW)

Plant 1 (B18001) WELL 1 (G18113) DORCHESTER REGENCEntry Point to the Distribution System (EP)

Treatment Plant
Ground Water (GW)

Orangeburg Road near 78Entry Point to the Distribution System (EP)

PLANT 8(B18011) WELL (G18101) BACONS BRIDGE
Ground Water (GW)

PLANT 8(B18011) WELL (G18101) BACONS BRIDGEEntry Point to the Distribution System (EP)

PLANT 9 (B18012) WELL 9 (G18235) CANE ACRE RD
Ground Water (GW)

PLANT 9 (B18012) WELL 9 (G18235) CANE ACRE RDEntry Point to the Distribution System (EP)

Summerville CPW - Connection
Surface Water (SW)

Bacons Bridge RoadEntry Point to the Distribution System (EP)

DISTRIBUTION SYSTEM
Multiple Sources (MX)

SUMMERVILLE AIRPORTDistribution System (DS)

DISTRIBUTION SYSTEM
Multiple Sources (MX)

1686 DAWSON'S BRANCHDistribution System (DS)

DISTRIBUTION SYSTEM
Multiple Sources (MX)

131 DESTIN CTDistribution System (DS)

DISTRIBUTION SYSTEM
Multiple Sources (MX)

257 CAROLINIAN DR, SUMMERVILLEDistribution System (DS)

Distribution System
Multiple Sources (MX)

890 Grayback Road (Summerville Airport)Maximum Residence Time (MR)

FAQ

Is DCWA Knightsville tap water safe to drink?

When was DCWA Knightsville last tested for water contamination?

The latest water samples were taken on February 14th, 2025.