← Hamilton, OH

Tap water quality report

ZIP 45015 — Hamilton, OH

EPA monitoring across the 2 water suppliers serving ZIP 45015 in Hamilton, OH detected 20 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
179,019
people served
20
contaminants found

What was found in ZIP 45015

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
Fluoride
1659 µg/L 41%
of the EPA limit 4000 µg/L
Highest in the ZIP: HAMILTON PUBLIC WATER SYSTEM · 62,447 people · 2018
1/2 SYR4
Nitrate
1500 µg/L 15%
of the EPA limit 10000 µg/L
Highest in the ZIP: HAMILTON PUBLIC WATER SYSTEM · 62,447 people · 2019
1/2 SYR4
Nitrate-Nitrite
1212 µg/L 12%
of the EPA limit 10000 µg/L
Highest in the ZIP: HAMILTON PUBLIC WATER SYSTEM · 62,447 people · 2014
1/2 SYR4
Copper
31.86 µg/L 2.5%
of the EPA limit 1300 µg/L
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2017
Highest in the ZIP: 64.255 µg/L — HAMILTON PUBLIC WATER SYSTEM · 62,447 people · 2019
2/2 SYR4
Barium
55.25 µg/L 2.8%
of the EPA limit 2000 µg/L
Highest in the ZIP: HAMILTON PUBLIC WATER SYSTEM · 62,447 people · 2018
1/2 SYR4
TTHM
41.145 µg/L 51%
of the EPA limit 80 µg/L
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2019
2/2 SYR4
Lead
12.655 µg/L 84%
of the EPA limit 15 µg/L
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2017
Highest in the ZIP: 21.25 µg/L — HAMILTON PUBLIC WATER SYSTEM · 62,447 people · 2019
2/2 SYR4
Dibromochloromethane
16.39 µg/L
No EPA limit set
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2019
1/2 SYR4
Bromoform
13.645 µg/L
No EPA limit set
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
11.42 µg/L 19%
of the EPA limit 60 µg/L
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2019
2/2 SYR4
Bromodichloromethane
10.58 µg/L
No EPA limit set
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2019
1/2 SYR4
Chloroform
9.384 µg/L
No EPA limit set
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2019
2/2 SYR4
Dibromoacetic Acid
7.0095 µg/L
No EPA limit set
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2019
2/2 SYR4
Dichloroacetic Acid
4.7903 µg/L
No EPA limit set
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2019
1/2 SYR4
Monochloroacetic Acid
4.2404 µg/L
No EPA limit set
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2019
1/2 SYR4
Trichloroacetic Acid
3.61 µg/L
No EPA limit set
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2019
1/2 SYR4
PFOA
0.0053 µg/L
No EPA limit set
Highest in the ZIP: HAMILTON PUBLIC WATER SYSTEM · 62,447 people · 2024
1/2 UCMR-5
PFHXS
0.0047 µg/L
No EPA limit set
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2025
2/2 UCMR-5
PFBS
0.0035 µg/L
No EPA limit set
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2025
Highest in the ZIP: 0.0036 µg/L — HAMILTON PUBLIC WATER SYSTEM · 62,447 people · 2024
2/2 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: BUTLER CO. WATER DISTRICT 2 PWS · 116,572 people · 2025
Highest in the ZIP: 0.0020 mg/L — HAMILTON PUBLIC WATER SYSTEM · 62,447 people · 2024
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 45015

SupplierStatePopulation served
BUTLER CO. WATER DISTRICT 2 PWS OH 116,572
HAMILTON PUBLIC WATER SYSTEM OH 62,447

Frequently asked questions about ZIP 45015 tap water

Is the tap water in ZIP 45015 safe to drink?

EPA testing detected 20 contaminants across the water suppliers serving ZIP 45015. 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 45015?

2 public water suppliers report EPA drinking-water monitoring for ZIP 45015. Each is listed above with its population served.

What contaminants are in ZIP 45015's water?

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