Tap WaterIndex

← South Carolina

Tap water quality report

Lancaster, SC

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Lancaster. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
93,181
people served
18
contaminants found
South Carolina rankings Lead in South Carolina PFAS in South Carolina

What was found in Lancaster's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
209.6 µg/L 16%
of the EPA limit 1300 µg/L
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
Highest in the city: 230 µg/L — LANCASTER CITY OF (SC2910001) · 14,074 people · 2019
2/2 SYR4
TTHM
60.71 µg/L 76%
of the EPA limit 80 µg/L
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
2/2 SYR4
Lead
26 µg/L 173%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
Highest in the city: 35 µg/L — LANCASTER CITY OF (SC2910001) · 14,074 people · 2019
2/2 SYR4
Chloroform
31.63 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
22.95 µg/L 38%
of the EPA limit 60 µg/L
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
Highest in the city: 23.8125 µg/L — LANCASTER CITY OF (SC2910001) · 14,074 people · 2019
2/2 SYR4
Bromodichloromethane
16.05 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
2/2 SYR4
Dichloroacetic Acid
14.525 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
2/2 SYR4
Dibromochloromethane
13.255 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
2/2 SYR4
Trichloroacetic Acid
7.66 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
2/2 SYR4
Bromoform
7.525 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
2/2 SYR4
Monobromoacetic Acid
1.1 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
Highest in the city: 6.475 µg/L — LANCASTER CITY OF (SC2910001) · 14,074 people · 2019
2/2 SYR4
Dibromoacetic Acid
5.755 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
2/2 SYR4
Monochloroacetic Acid
2.29 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2019
Highest in the city: 2.3 µg/L — LANCASTER CITY OF (SC2910001) · 14,074 people · 2019
2/2 SYR4
Pfpea
0.0068 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2025
Highest in the city: 0.0096 µg/L — LANCASTER CITY OF (SC2910001) · 14,074 people · 2024
2/2 UCMR-5
Pfhxa
0.0059 µg/L
No EPA limit set
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2025
Highest in the city: 0.0073 µg/L — LANCASTER CITY OF (SC2910001) · 14,074 people · 2024
2/2 UCMR-5
Pfba
0.0056 µg/L
No EPA limit set
Highest in the city: LANCASTER CITY OF (SC2910001) · 14,074 people · 2024
1/2 UCMR-5
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
Main supplier: LANCASTER COUNTY W&SD (SC2920001) · 79,107 people · 2025
2/2 LCR
PFOA
0.0040 µg/L
No EPA limit set
Highest in the city: LANCASTER CITY OF (SC2910001) · 14,074 people · 2024
1/2 UCMR-5
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Lancaster

SupplierPopulation served
LANCASTER COUNTY W&SD (SC2920001) 79,107
LANCASTER CITY OF (SC2910001) 14,074

Frequently asked questions about Lancaster tap water

Is Lancaster tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Lancaster. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Lancaster?

2 public water suppliers report drinking-water monitoring for Lancaster, South Carolina to the EPA. Each is listed above with its population served.

What contaminants are in Lancaster's water?

The contaminants EPA monitoring detected in Lancaster include Copper, TTHM, Lead, Chloroform, Total Haloacetic Acids (HAA5). The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.