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Tap water quality report

Irondequoit, NY

EPA monitoring detected 21 contaminants across the 2 water suppliers serving Irondequoit. 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.

2
water suppliers
533,062
people served
21
contaminants found
New York rankings Lead in New York PFAS in New York

What was found in Irondequoit'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
Fluoride
736 µg/L 18%
of the EPA limit 4000 µg/L
Main supplier: MCWA · 525,262 people · 2019
1/2 SYR4
Nitrate
390 µg/L 3.9%
of the EPA limit 10000 µg/L
Main supplier: MCWA · 525,262 people · 2019
1/2 SYR4
Nitrate-Nitrite
390 µg/L 3.9%
of the EPA limit 10000 µg/L
Main supplier: MCWA · 525,262 people · 2019
1/2 SYR4
Copper
195.9 µg/L 15%
of the EPA limit 1300 µg/L
Highest in the city: SEA BREEZE WD · 7,800 people · 2015
1/2 SYR4
TTHM
70.25 µg/L 88%
of the EPA limit 80 µg/L
Main supplier: MCWA · 525,262 people · 2019
2/2 SYR4
Chloroform
52.1 µg/L
No EPA limit set
Main supplier: MCWA · 525,262 people · 2019
2/2 SYR4
Barium
23 µg/L 1.2%
of the EPA limit 2000 µg/L
Main supplier: MCWA · 525,262 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
22 µg/L 37%
of the EPA limit 60 µg/L
Main supplier: MCWA · 525,262 people · 2019
2/2 SYR4
Bromodichloromethane
15 µg/L
No EPA limit set
Main supplier: MCWA · 525,262 people · 2019
Highest in the city: 17 µg/L — SEA BREEZE WD · 7,800 people · 2019
2/2 SYR4
Trichloroacetic Acid
13 µg/L
No EPA limit set
Main supplier: MCWA · 525,262 people · 2019
2/2 SYR4
Lithium
12.1 µg/L
No EPA limit set
Main supplier: MCWA · 525,262 people · 2024
1/2 UCMR-5
Dichloroacetic Acid
11 µg/L
No EPA limit set
Main supplier: MCWA · 525,262 people · 2019
Highest in the city: 12 µg/L — SEA BREEZE WD · 7,800 people · 2019
2/2 SYR4
Lead
11.645 µg/L 78%
of the EPA limit 15 µg/L
Highest in the city: SEA BREEZE WD · 7,800 people · 2015
1/2 SYR4
Dibromochloromethane
7.5 µg/L
No EPA limit set
Main supplier: MCWA · 525,262 people · 2019
2/2 SYR4
Bromoform
1.2 µg/L
No EPA limit set
Main supplier: MCWA · 525,262 people · 2019
Highest in the city: 3.13 µg/L — SEA BREEZE WD · 7,800 people · 2019
2/2 SYR4
Arsenic
2.6 µg/L 26%
of the EPA limit 10 µg/L
Main supplier: MCWA · 525,262 people · 2019
1/2 SYR4
Monochloroacetic Acid
2.595 µg/L
No EPA limit set
Main supplier: MCWA · 525,262 people · 2019
2/2 SYR4
Monobromoacetic Acid
2.4 µg/L
No EPA limit set
Main supplier: MCWA · 525,262 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.1 µg/L
No EPA limit set
Main supplier: MCWA · 525,262 people · 2019
2/2 SYR4
Atrazine
0.0732 µg/L 2.4%
of the EPA limit 3 µg/L
Main supplier: MCWA · 525,262 people · 2019
1/2 SYR4
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
Main supplier: MCWA · 525,262 people · 2025
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. 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 Irondequoit

SupplierPopulation served
MCWA 525,262
SEA BREEZE WD 7,800

Frequently asked questions about Irondequoit tap water

Is Irondequoit tap water safe to drink?

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

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

What contaminants are in Irondequoit's water?

The contaminants EPA monitoring detected in Irondequoit include Fluoride, Nitrate, Nitrate-Nitrite, Copper, TTHM. 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.