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Tap water quality report

Dewey Beach, DE

EPA monitoring detected 21 contaminants across the 2 water suppliers serving Dewey Beach. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

2
water suppliers
31,078
people served
21
contaminants found
Delaware rankings Lead in Delaware PFAS in Delaware

What was found in Dewey Beach's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
7900 µg/L 79%
of the EPA limit 10000 µg/L
 1/2 SYR4
Nitrate-Nitrite
7900 µg/L 79%
of the EPA limit 10000 µg/L
 1/2 SYR4
Copper
1020 µg/L 78%
of the EPA limit 1300 µg/L
 2/2 SYR4
TTHM
57.6 µg/L 72%
of the EPA limit 80 µg/L
 1/2 SYR4
Chloroform
36 µg/L
No EPA limit set
 1/2 SYR4
Lead
26.6 µg/L 177%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
Bromodichloromethane
13.3 µg/L
No EPA limit set
 1/2 SYR4
Total Haloacetic Acids (HAA5)
10.745 µg/L 18%
of the EPA limit 60 µg/L
 1/2 SYR4
Dibromochloromethane
9.65 µg/L
No EPA limit set
 1/2 SYR4
Bromoform
8.92 µg/L
No EPA limit set
 1/2 SYR4
Trichloroacetic Acid
3.99 µg/L
No EPA limit set
 1/2 SYR4
Dichloroacetic Acid
3.723 µg/L
No EPA limit set
 1/2 SYR4
Dibromoacetic Acid
3.21 µg/L
No EPA limit set
 1/2 SYR4
Di(2-ethylhexyl) Phthalate
1.7 µg/L 28%
of the EPA limit 6 µg/L
 1/2 SYR4
Combined Radium (-226 And -228)
0.7900 pCi/L 16%
of the EPA limit 5 pCi/L
 1/2 SYR4
PFOA
0.0110 µg/L
No EPA limit set
 1/2 UCMR-5
Lead
0.0069 mg/L 46%
of the EPA limit 0.0150 mg/L
 2/2 LCR
PFBS
0.0050 µg/L
No EPA limit set
 1/2 UCMR-5
Pfhxa
0.0042 µg/L
No EPA limit set
 1/2 UCMR-5
Pfpea
0.0038 µg/L
No EPA limit set
 1/2 UCMR-5
PFHXS
0.0035 µg/L
No EPA limit set
 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 single worst sample on record — 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 Dewey Beach

SupplierPopulation served
DEWEY BEACH WATER DEPARTMENT 31,000
CHERRY CREEK VALLEY 78

Frequently asked questions about Dewey Beach tap water

Is Dewey Beach tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Dewey Beach. 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 Dewey Beach?

2 public water suppliers report drinking-water monitoring for Dewey Beach, Delaware to the EPA. Each is listed above with its population served.

What contaminants are in Dewey Beach's water?

The contaminants EPA monitoring detected in Dewey Beach include Nitrate, Nitrate-Nitrite, Copper, TTHM, Chloroform. The full list, with the highest level found 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.