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Tap water quality report

ZIP 06759 — Harwinton, CT

EPA monitoring across the 2 water suppliers serving ZIP 06759 in Harwinton, CT detected 23 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
41,012
people served
23
contaminants found

What was found in ZIP 06759

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

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
59 µg/L 0.6%
of the EPA limit 10000 µg/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
Highest in the ZIP: 757.8 µg/L — AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
2/2 SYR4
Nitrate-Nitrite
78.5 µg/L 0.8%
of the EPA limit 10000 µg/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
Highest in the ZIP: 741.6 µg/L — AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
2/2 SYR4
Fluoride
650 µg/L 16%
of the EPA limit 4000 µg/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
2/2 SYR4
Copper
136.4 µg/L 10%
of the EPA limit 1300 µg/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
Highest in the ZIP: 569 µg/L — AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
2/2 SYR4
Barium
21.935 µg/L 1.1%
of the EPA limit 2000 µg/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
Highest in the ZIP: 80.6 µg/L — AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
2/2 SYR4
TTHM
66.1 µg/L 83%
of the EPA limit 80 µg/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
Highest in the ZIP: 73.15 µg/L — AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
2/2 SYR4
Chloroform
60.23 µg/L
No EPA limit set
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
Highest in the ZIP: 62.5 µg/L — AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
48 µg/L 80%
of the EPA limit 60 µg/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
2/2 SYR4
Lead
40.48 µg/L 270%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
2/2 SYR4
Trichloroacetic Acid
26.96 µg/L
No EPA limit set
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
2/2 SYR4
Dichloroacetic Acid
21.9 µg/L
No EPA limit set
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
2/2 SYR4
Bromodichloromethane
5.26 µg/L
No EPA limit set
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
Highest in the ZIP: 9 µg/L — AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
2/2 SYR4
Combined Uranium
7.24 µg/L 24%
of the EPA limit 30 µg/L
Highest in the ZIP: AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
3.42 pCi/L 23%
of the EPA limit 15 pCi/L
Highest in the ZIP: AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
1/2 SYR4
Monochloroacetic Acid
3.2 µg/L
No EPA limit set
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
2/2 SYR4
Dibromochloromethane
0.8205 µg/L
No EPA limit set
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
Highest in the ZIP: 3 µg/L — AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
2/2 SYR4
Chromium
2.85 µg/L 2.9%
of the EPA limit 100 µg/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
1/2 SYR4
Monobromoacetic Acid
2.285 µg/L
No EPA limit set
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
1/2 SYR4
Dibromoacetic Acid
2.065 µg/L
No EPA limit set
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
2/2 SYR4
Cadmium
1.95 µg/L 39%
of the EPA limit 5 µg/L
Highest in the ZIP: AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
0.5300 pCi/L 11%
of the EPA limit 5 pCi/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2019
Highest in the ZIP: 1.435 pCi/L — AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
2/2 SYR4
Bromoform
1 µg/L
No EPA limit set
Highest in the ZIP: AQUARION-LITCHFIELD REGIONAL · 3,097 people · 2019
1/2 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: TORRINGTON WATER COMPANY · 37,915 people · 2026
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.

Water suppliers serving ZIP 06759

SupplierStatePopulation served
TORRINGTON WATER COMPANY CT 37,915
AQUARION-LITCHFIELD REGIONAL CT 3,097

Frequently asked questions about ZIP 06759 tap water

Is the tap water in ZIP 06759 safe to drink?

EPA testing detected 23 contaminants across the water suppliers serving ZIP 06759. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 06759?

2 public water suppliers report EPA drinking-water monitoring for ZIP 06759. Each is listed above with its population served.

What contaminants are in ZIP 06759's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.