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Tap water quality report

Newtown, CT

EPA monitoring detected 30 contaminants across the 5 water suppliers serving Newtown. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

5
water suppliers
361,082
people served
30
contaminants found

What was found in Newtown'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
Copper
7940 µg/L 611%
of the EPA limit, in the worst sample — 1300 µg/L
5/5 SYR4
Nitrate
1560 µg/L 16%
of the EPA limit 10000 µg/L
5/5 SYR4
Nitrate-Nitrite
1560 µg/L 16%
of the EPA limit 10000 µg/L
5/5 SYR4
Fluoride
1080 µg/L 27%
of the EPA limit 4000 µg/L
4/5 SYR4
Lead
668 µg/L 4453%
of the EPA limit, in the worst sample — 15 µg/L
5/5 SYR4
TTHM
101 µg/L 126%
of the EPA limit, in the worst sample — 80 µg/L
5/5 SYR4
Chloroform
79 µg/L
No EPA limit set
5/5 SYR4
Total Haloacetic Acids (HAA5)
75 µg/L 125%
of the EPA limit, in the worst sample — 60 µg/L
5/5 SYR4
Barium
60 µg/L 3%
of the EPA limit 2000 µg/L
5/5 SYR4
Trichloroacetic Acid
38 µg/L
No EPA limit set
5/5 SYR4
Dichloroacetic Acid
36 µg/L
No EPA limit set
5/5 SYR4
Gross Alpha, Excl. Radon And U
23.41 pCi/L 156%
of the EPA limit, in the worst sample — 15 pCi/L
2/5 SYR4
Bromodichloromethane
19 µg/L
No EPA limit set
5/5 SYR4
Combined Uranium
14 µg/L 47%
of the EPA limit 30 µg/L
2/5 SYR4
Dibromochloromethane
11 µg/L
No EPA limit set
5/5 SYR4
Combined Radium (-226 And -228)
7.51 pCi/L 150%
of the EPA limit, in the worst sample — 5 pCi/L
3/5 SYR4
Bromoform
6 µg/L
No EPA limit set
3/5 SYR4
Monobromoacetic Acid
4.7 µg/L
No EPA limit set
3/5 SYR4
Dibromoacetic Acid
3.5 µg/L
No EPA limit set
4/5 SYR4
Monochloroacetic Acid
3 µg/L
No EPA limit set
2/5 SYR4
Cyanide
1 µg/L 0.5%
of the EPA limit 200 µg/L
1/5 SYR4
PFOA
0.0159 µg/L
No EPA limit set
2/5 UCMR-5
PFOS
0.0127 µg/L
No EPA limit set
2/5 UCMR-5
Pfpea
0.0084 µg/L
No EPA limit set
2/5 UCMR-5
Pfba
0.0076 µg/L
No EPA limit set
2/5 UCMR-5
Pfhxa
0.0076 µg/L
No EPA limit set
2/5 UCMR-5
PFBS
0.0073 µg/L
No EPA limit set
2/5 UCMR-5
Pfhpa
0.0049 µg/L
No EPA limit set
2/5 UCMR-5
PFHXS
0.0049 µg/L
No EPA limit set
1/5 UCMR-5
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
5/5 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 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 Newtown

Frequently asked questions about Newtown tap water

Is Newtown tap water safe to drink?

EPA testing detected 30 contaminants in the water serving Newtown. 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 Newtown?

5 public water suppliers report drinking-water monitoring for Newtown, Connecticut to the EPA. Each is listed above with its population served.

What contaminants are in Newtown's water?

The contaminants EPA monitoring detected in Newtown include Copper, Nitrate, Nitrate-Nitrite, Fluoride, Lead. 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.