TapGraded
F

WATERTOWN CITY

Watertown, NY · 27,861 served

WATERTOWN CITY serves 27,861 people in Watertown, NY. It has 3 health-based violations in the last 5 years. TapGraded gives this system an F.

Score breakdown

Health-based violations (5y)

3

Monitoring violations (5y)

0

Currently unaddressed

0

Overall score

48/100

Violation history (last 5 years)

2021
2022
2025
Health-based Monitoring / reporting

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Lead (Lead and Copper Rule)

EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).

90th-percentile lead sample 6.3 ppb
0 ppb EPA action level: 15 ppb

PFAS (UCMR5 occurrence data)

PFOS (not detected) 0 ppt
0 ppt EPA MCL: 4 ppt
PFOA 7.3 ppt over limit
0 ppt EPA MCL: 4 ppt
PFNA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
PFHxS 3.9 ppt
0 ppt EPA MCL: 10 ppt
HFPO-DA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt

System details

System type
Community water system
Water source
Surface water
Ownership
Local government
Service connections
8,000

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Frequently asked questions

Is Watertown, NY tap water safe to drink?

WATERTOWN CITY has 3 health-based violations in the last 5 years. TapGraded gives this system an F.

Does WATERTOWN CITY have lead in its water?

The most recent 90th-percentile lead sample is 6.3 ppb, versus the EPA action level of 15 ppb.

Has PFAS been detected in WATERTOWN CITY's water?

Yes — PFAS was detected at or above the EPA MCL for 1 of the tracked analytes.

Source: EPA SDWIS/ECHO · Data as of 2026Q2