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Tap water quality report

Norfolk, CT

EPA monitoring detected 14 contaminants across the 1 water supplier serving Norfolk. 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
913
people served
14
contaminants found
Connecticut rankings Lead in Connecticut PFAS in Connecticut

What was found in Norfolk'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
Nitrate
140 µg/L 1.4%
of the EPA limit 10000 µg/L
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Lead
74.15 µg/L 494%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Copper
67.5 µg/L 5.2%
of the EPA limit 1300 µg/L
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Nitrate-Nitrite
56 µg/L 0.6%
of the EPA limit 10000 µg/L
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Fluoride
50 µg/L 1.3%
of the EPA limit 4000 µg/L
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
TTHM
50 µg/L 63%
of the EPA limit 80 µg/L
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Chloroform
46.8 µg/L
No EPA limit set
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
24 µg/L 40%
of the EPA limit 60 µg/L
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Trichloroacetic Acid
13 µg/L
No EPA limit set
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Dichloroacetic Acid
12 µg/L
No EPA limit set
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Barium
8 µg/L 0.4%
of the EPA limit 2000 µg/L
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Bromodichloromethane
4 µg/L
No EPA limit set
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Monochloroacetic Acid
1 µg/L
No EPA limit set
Main supplier: AQUARION-NORFOLK · 913 people · 2019
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: AQUARION-NORFOLK · 913 people · 2026
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 Norfolk

SupplierPopulation served
AQUARION-NORFOLK 913

Frequently asked questions about Norfolk tap water

Is Norfolk tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Norfolk. 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 Norfolk?

1 public water supplier report drinking-water monitoring for Norfolk, Connecticut to the EPA. Each is listed above with its population served.

What contaminants are in Norfolk's water?

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