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Tap water quality report

Dewees Island, SC

EPA monitoring detected 15 contaminants across the 1 water supplier serving Dewees Island. 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.

1
water supplier
55
people served
15
contaminants found
South Carolina rankings Lead in South Carolina PFAS in South Carolina

What was found in Dewees Island'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
3050 µg/L 76%
of the EPA limit 4000 µg/L
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
TTHM
121.179 µg/L 151%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Bromoform
120.324 µg/L
No EPA limit set
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Copper
56.9 µg/L 4.4%
of the EPA limit 1300 µg/L
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Chloroform
40.5285 µg/L
No EPA limit set
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
36.65 µg/L 61%
of the EPA limit 60 µg/L
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Nitrate
23 µg/L 0.2%
of the EPA limit 10000 µg/L
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Dibromoacetic Acid
20.006 µg/L
No EPA limit set
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Trichloroacetic Acid
17.127 µg/L
No EPA limit set
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Dichloroacetic Acid
16.85 µg/L
No EPA limit set
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Dibromochloromethane
11.83 µg/L
No EPA limit set
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Bromodichloromethane
10.4835 µg/L
No EPA limit set
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Monobromoacetic Acid
7.322 µg/L
No EPA limit set
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Lead
1.27 µg/L 8.5%
of the EPA limit 15 µg/L
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2019
1/1 SYR4
Lead
0.0080 mg/L 53%
of the EPA limit 0.0150 mg/L
Main supplier: DEWEES UTILITIES (SC1050011) · 55 people · 2025
1/1 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 Dewees Island

SupplierPopulation served
DEWEES UTILITIES (SC1050011) 55

Frequently asked questions about Dewees Island tap water

Is Dewees Island tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Dewees Island. 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 Dewees Island?

1 public water supplier report drinking-water monitoring for Dewees Island, South Carolina to the EPA. Each is listed above with its population served.

What contaminants are in Dewees Island's water?

The contaminants EPA monitoring detected in Dewees Island include Fluoride, TTHM, Bromoform, Copper, Chloroform. 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.