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Tap water quality report

Norwich, NY

EPA monitoring detected 21 contaminants across the 6 water suppliers serving Norwich. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

6
water suppliers
9,250
people served
21
contaminants found
New York rankings Lead in New York PFAS in New York

What was found in Norwich'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
3450 µg/L 35%
of the EPA limit 10000 µg/L
 4/6 SYR4
Fluoride
1100 µg/L 28%
of the EPA limit 4000 µg/L
 1/6 SYR4
Nitrate-Nitrite
540 µg/L 5.4%
of the EPA limit 10000 µg/L
 1/6 SYR4
Bromodichloromethane
309 µg/L
No EPA limit set
 2/6 SYR4
TTHM
121 µg/L 151%
of the EPA limit, in the worst sample — 80 µg/L
 2/6 SYR4
Barium
120 µg/L 6%
of the EPA limit 2000 µg/L
 4/6 SYR4
Chloroform
114 µg/L
No EPA limit set
 2/6 SYR4
Total Haloacetic Acids (HAA5)
110 µg/L 183%
of the EPA limit, in the worst sample — 60 µg/L
 2/6 SYR4
Trichloroacetic Acid
80 µg/L
No EPA limit set
 1/6 SYR4
Dichloroacetic Acid
47 µg/L
No EPA limit set
 2/6 SYR4
Dibromochloromethane
11 µg/L
No EPA limit set
 2/6 SYR4
Lithium
9 µg/L
No EPA limit set
 1/6 UCMR-5
Di(2-ethylhexyl) Phthalate
6.8 µg/L 113%
of the EPA limit, in the worst sample — 6 µg/L
 1/6 SYR4
Monochloroacetic Acid
5.8 µg/L
No EPA limit set
 1/6 SYR4
Monobromoacetic Acid
5.6 µg/L
No EPA limit set
 1/6 SYR4
Bromoform
4.3 µg/L
No EPA limit set
 2/6 SYR4
Dibromoacetic Acid
3.2 µg/L
No EPA limit set
 2/6 SYR4
Chromium
2.2 µg/L 2.2%
of the EPA limit 100 µg/L
 1/6 SYR4
Combined Radium (-226 And -228)
1.326 pCi/L 27%
of the EPA limit 5 pCi/L
 2/6 SYR4
Arsenic
1.1 µg/L 11%
of the EPA limit 10 µg/L
 1/6 SYR4
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 6/6 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 Norwich

SupplierPopulation served
NORWICH CITY 8,000
NORWICH TOWN WATER DISTRICT #3 500
MAPLE GROVE WEST & EAST MHP 416
NORWICH TOWN WATER DISTRICT #2 200
HORSTMAN TRAILER COURT 84
MILLERS TRAILER PARK 50

Frequently asked questions about Norwich tap water

Is Norwich tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Norwich. 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 Norwich?

6 public water suppliers report drinking-water monitoring for Norwich, New York to the EPA. Each is listed above with its population served.

What contaminants are in Norwich's water?

The contaminants EPA monitoring detected in Norwich include Nitrate, Fluoride, Nitrate-Nitrite, Bromodichloromethane, TTHM. 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.