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Tap water quality report

ZIP 45432 — Dayton, OH

EPA monitoring across the 2 water suppliers serving ZIP 45432 in Dayton, OH detected 29 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
183,302
people served
29
contaminants found

What was found in ZIP 45432

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
1567.5 µg/L 16%
of the EPA limit 10000 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
2/2 SYR4
Nitrate-Nitrite
1472 µg/L 15%
of the EPA limit 10000 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
2/2 SYR4
Fluoride
977.5 µg/L 24%
of the EPA limit 4000 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
2/2 SYR4
Copper
68.23 µg/L 5.2%
of the EPA limit 1300 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2017
Highest in the ZIP: 241.45 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Barium
67.1 µg/L 3.4%
of the EPA limit 2000 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 202.2 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2017
2/2 SYR4
Nitrite
186 µg/L 19%
of the EPA limit 1000 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
1/2 SYR4
TTHM
36.7688 µg/L 46%
of the EPA limit 80 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 65.572 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Chloroform
11.7683 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 31.222 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
8.6065 µg/L 14%
of the EPA limit 60 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 19.8155 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Bromodichloromethane
10.8745 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 19.032 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Gross Beta Particle Activity
17.2 pCi/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
1/2 SYR4
Lead
11.2 µg/L 75%
of the EPA limit 15 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2017
Highest in the ZIP: 16.23 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Dibromochloromethane
9.35075 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 14.998 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Dichloroacetic Acid
4.2 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 9.81095 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Monochloroacetic Acid
3.65 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 9.6421 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Arsenic
7.003 µg/L 70%
of the EPA limit 10 µg/L
Highest in the ZIP: GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
1/2 SYR4
Trichloroacetic Acid
1.51425 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 5.48 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Dibromoacetic Acid
3.5025 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 4.17345 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Bromoform
2.747 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
Highest in the ZIP: 4.04 µg/L — GREENE CO.-NORTHWEST REG WATER · 41,895 people · 2019
2/2 SYR4
Monobromoacetic Acid
2.38 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
1.3 pCi/L 26%
of the EPA limit 5 pCi/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
1/2 SYR4
Trichloroethylene
1.063 µg/L 21%
of the EPA limit 5 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
1/2 SYR4
cis-1,2-Dichloroethylene
0.6665 µg/L 1%
of the EPA limit 70 µg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2019
1/2 SYR4
Lead
0.4700 mg/L 3133%
above the EPA limit of 0.0150 mg/L
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2026
2/2 LCR
PFOS
0.0100 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2023
1/2 UCMR-5
PFHXS
0.0098 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2023
1/2 UCMR-5
Pfpea
0.0046 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2023
1/2 UCMR-5
Pfhxa
0.0044 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2023
1/2 UCMR-5
PFBS
0.0030 µg/L
No EPA limit set
Main supplier: DAYTON PUBLIC WATER SYSTEM · 141,407 people · 2023
1/2 UCMR-5
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 45432

SupplierStatePopulation served
DAYTON PUBLIC WATER SYSTEM OH 141,407
GREENE CO.-NORTHWEST REG WATER 41,895

Frequently asked questions about ZIP 45432 tap water

Is the tap water in ZIP 45432 safe to drink?

EPA testing detected 29 contaminants across the water suppliers serving ZIP 45432. 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 45432?

2 public water suppliers report EPA drinking-water monitoring for ZIP 45432. Each is listed above with its population served.

What contaminants are in ZIP 45432's water?

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