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Tap water quality report

ZIP 45236 — Cincinnati, OH

EPA monitoring across the 2 water suppliers serving ZIP 45236 in Cincinnati, OH detected 22 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.

2
water suppliers
759,706
people served
22
contaminants found

What was found in ZIP 45236

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
Nitrate
1390 µg/L 14%
of the EPA limit 10000 µg/L
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
1/2 SYR4
Nitrate-Nitrite
1390 µg/L 14%
of the EPA limit 10000 µg/L
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
1/2 SYR4
Fluoride
965 µg/L 24%
of the EPA limit 4000 µg/L
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
1/2 SYR4
Copper
43.51500000000001 µg/L 3.3%
of the EPA limit 1300 µg/L
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
Highest in the ZIP: 148 µg/L — READING CITY PWS · 9,506 people · 2017
2/2 SYR4
TTHM
61.41 µg/L 77%
of the EPA limit 80 µg/L
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
2/2 SYR4
Barium
40.5 µg/L 2%
of the EPA limit 2000 µg/L
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
1/2 SYR4
Chloroform
24.1 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
2/2 SYR4
Dibromochloromethane
21.4 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
2/2 SYR4
Bromoform
21.29 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
2/2 SYR4
Lead
21.119999999999994 µg/L 141%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
2/2 SYR4
Bromodichloromethane
16.31 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
13.9 µg/L 23%
of the EPA limit 60 µg/L
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
2/2 SYR4
Dichloroacetic Acid
6.6834999999999996 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
2/2 SYR4
Dibromoacetic Acid
6.2895 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
Highest in the ZIP: 6.59 µg/L — READING CITY PWS · 9,506 people · 2019
2/2 SYR4
Monobromoacetic Acid
5.354 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
1/2 SYR4
Trichloroacetic Acid
3.3259999999999974 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
Highest in the ZIP: 3.37 µg/L — READING CITY PWS · 9,506 people · 2019
2/2 SYR4
Monochloroacetic Acid
3.2819999999999947 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
1/2 SYR4
PFOS
0.0061 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2024
1/2 UCMR-5
Pfba
0.0052 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2024
1/2 UCMR-5
Pfpea
0.0049 µg/L
No EPA limit set
Highest in the ZIP: READING CITY PWS · 9,506 people · 2025
1/2 UCMR-5
PFBS
0.0041 µg/L
No EPA limit set
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2024
1/2 UCMR-5
Lead
0.0021 mg/L 14%
of the EPA limit 0.0150 mg/L
Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2026
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.

Water suppliers serving ZIP 45236

SupplierStatePopulation served
CINCINNATI PUBLIC WATER SYSTEM OH 750,200
READING CITY PWS OH 9,506

Frequently asked questions about ZIP 45236 tap water

Is the tap water in ZIP 45236 safe to drink?

EPA testing detected 22 contaminants across the water suppliers serving ZIP 45236. 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 45236?

2 public water suppliers report EPA drinking-water monitoring for ZIP 45236. Each is listed above with its population served.

What contaminants are in ZIP 45236's water?

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