← Watertown, CT

Tap water quality report

ZIP 06798 — Watertown, CT

EPA monitoring across the 1 water supplier serving ZIP 06798 in Watertown, CT detected 18 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.

1
water supplier
6,718
people served
18
contaminants found

What was found in ZIP 06798

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
Copper
1065.8 µg/L 82%
of the EPA limit 1300 µg/L
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Nitrate
673.8 µg/L 6.7%
of the EPA limit 10000 µg/L
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Nitrate-Nitrite
595.65 µg/L 6%
of the EPA limit 10000 µg/L
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Barium
30.45 µg/L 1.5%
of the EPA limit 2000 µg/L
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Lead
14.715 µg/L 98%
of the EPA limit 15 µg/L
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
TTHM
14.285 µg/L 18%
of the EPA limit 80 µg/L
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Chloroform
7.7795 µg/L
No EPA limit set
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
6.3365 µg/L 11%
of the EPA limit 60 µg/L
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Bromodichloromethane
3.93 µg/L
No EPA limit set
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Dichloroacetic Acid
3.5715 µg/L
No EPA limit set
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Dibromochloromethane
2.82 µg/L
No EPA limit set
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Trichloroacetic Acid
1.7266 µg/L
No EPA limit set
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
1.336 pCi/L 27%
of the EPA limit 5 pCi/L
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Monochloroacetic Acid
1.2 µg/L
No EPA limit set
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.17 µg/L
No EPA limit set
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Bromoform
0.8185 µg/L
No EPA limit set
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
0.6340 pCi/L 4.2%
of the EPA limit 15 pCi/L
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 people · 2019
1/1 SYR4
Lead
0.0022 mg/L 15%
of the EPA limit 0.0150 mg/L
Main supplier: WATERTOWN FIRE DISTRICT · 6,718 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.

Water suppliers serving ZIP 06798

SupplierStatePopulation served
WATERTOWN FIRE DISTRICT CT 6,718

Frequently asked questions about ZIP 06798 tap water

Is the tap water in ZIP 06798 safe to drink?

EPA testing detected 18 contaminants across the water suppliers serving ZIP 06798. 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 06798?

1 public water supplier report EPA drinking-water monitoring for ZIP 06798. Each is listed above with its population served.

What contaminants are in ZIP 06798's water?

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