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Tap water quality report

Dillon, SC

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Dillon. 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
24,961
people served
18
contaminants found
South Carolina rankings Lead in South Carolina PFAS in South Carolina

What was found in Dillon'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
Fluoride
381 µg/L 9.5%
of the EPA limit 4000 µg/L
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2017
Highest in the city: 1300 µg/L — DILLON CITY OF (SC1710001) · 6,998 people · 2017
2/2 SYR4
Copper
376 µg/L 29%
of the EPA limit 1300 µg/L
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
Highest in the city: 794.5 µg/L — DILLON CITY OF (SC1710001) · 6,998 people · 2019
2/2 SYR4
Barium
85.25 µg/L 4.3%
of the EPA limit 2000 µg/L
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2017
2/2 SYR4
TTHM
10.385 µg/L 13%
of the EPA limit 80 µg/L
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
2/2 SYR4
Xylenes, Total
8.6 µg/L 0.1%
of the EPA limit 10000 µg/L
Highest in the city: DILLON CITY OF (SC1710001) · 6,998 people · 2016
1/2 SYR4
Total Haloacetic Acids (HAA5)
7.535 µg/L 13%
of the EPA limit 60 µg/L
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
1/2 SYR4
Chloroform
4.158 µg/L
No EPA limit set
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
1/2 SYR4
Bromodichloromethane
3.8575 µg/L
No EPA limit set
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
2/2 SYR4
Gross Alpha, Excl. Radon And U
2.1 pCi/L 14%
of the EPA limit 15 pCi/L
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2016
Highest in the city: 3.695 pCi/L — DILLON CITY OF (SC1710001) · 6,998 people · 2018
2/2 SYR4
Dichloroacetic Acid
2.8945 µg/L
No EPA limit set
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
1/2 SYR4
Monobromoacetic Acid
2.751 µg/L
No EPA limit set
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
1/2 SYR4
Lead
2.625 µg/L 18%
of the EPA limit 15 µg/L
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
2/2 SYR4
Dibromochloromethane
2.5995 µg/L
No EPA limit set
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
2/2 SYR4
Trichloroacetic Acid
2.401 µg/L
No EPA limit set
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.57 µg/L
No EPA limit set
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
1.4 pCi/L 28%
of the EPA limit 5 pCi/L
Highest in the city: DILLON CITY OF (SC1710001) · 6,998 people · 2018
1/2 SYR4
Ethylbenzene
1.12 µg/L 0.2%
of the EPA limit 700 µg/L
Highest in the city: DILLON CITY OF (SC1710001) · 6,998 people · 2016
1/2 SYR4
Lead
0.0013 mg/L 8.7%
of the EPA limit 0.0150 mg/L
Main supplier: TRICO WATER COMPANY (SC1720001) · 17,963 people · 2027
2/2 LCR
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 Dillon

SupplierPopulation served
TRICO WATER COMPANY (SC1720001) 17,963
DILLON CITY OF (SC1710001) 6,998

Frequently asked questions about Dillon tap water

Is Dillon tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Dillon. 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 Dillon?

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

What contaminants are in Dillon's water?

The contaminants EPA monitoring detected in Dillon include Fluoride, Copper, Barium, TTHM, Xylenes, Total. 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.