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Tap water quality report

Caldwell, OH

EPA monitoring detected 19 contaminants across the 3 water suppliers serving Caldwell. 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.

3
water suppliers
5,568
people served
19
contaminants found
Ohio rankings Lead in Ohio PFAS in Ohio

What was found in Caldwell'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
1022.05 µg/L 26%
of the EPA limit 4000 µg/L
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
1/3 SYR4
Nitrate
792.5 µg/L 7.9%
of the EPA limit 10000 µg/L
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
1/3 SYR4
Nitrate-Nitrite
121 µg/L 1.2%
of the EPA limit 10000 µg/L
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2018
1/3 SYR4
Copper
32.5 µg/L 2.5%
of the EPA limit 1300 µg/L
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2017
Highest in the city: 100.3 µg/L — PURE WATER SYSTEM 2 PWS · 279 people · 2019
3/3 SYR4
TTHM
64.615 µg/L 81%
of the EPA limit 80 µg/L
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
Highest in the city: 88.2 µg/L — PURE WATER CORPORATION · 1,989 people · 2019
3/3 SYR4
Chloroform
56.295 µg/L
No EPA limit set
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
Highest in the city: 76.1 µg/L — PURE WATER CORPORATION · 1,989 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
49.18 µg/L 82%
of the EPA limit 60 µg/L
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
Highest in the city: 62.56 µg/L — PURE WATER SYSTEM 2 PWS · 279 people · 2019
3/3 SYR4
Trichloroacetic Acid
27.66 µg/L
No EPA limit set
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
Highest in the city: 36.77 µg/L — PURE WATER CORPORATION · 1,989 people · 2019
3/3 SYR4
Barium
34.96 µg/L 1.7%
of the EPA limit 2000 µg/L
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
1/3 SYR4
Dichloroacetic Acid
23.67 µg/L
No EPA limit set
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
Highest in the city: 27.74 µg/L — PURE WATER CORPORATION · 1,989 people · 2019
3/3 SYR4
Dibromoacetic Acid
13.69 µg/L
No EPA limit set
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
3/3 SYR4
Bromodichloromethane
8.525 µg/L
No EPA limit set
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
Highest in the city: 10.7 µg/L — PURE WATER CORPORATION · 1,989 people · 2019
3/3 SYR4
Lead
6.22 µg/L 41%
of the EPA limit 15 µg/L
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2017
1/3 SYR4
Monochloroacetic Acid
2.67 µg/L
No EPA limit set
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
Highest in the city: 4.26 µg/L — PURE WATER CORPORATION · 1,989 people · 2019
3/3 SYR4
Dibromochloromethane
2.205 µg/L
No EPA limit set
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
Highest in the city: 2.64 µg/L — PURE WATER CORPORATION · 1,989 people · 2019
3/3 SYR4
Monobromoacetic Acid
2.21 µg/L
No EPA limit set
Highest in the city: PURE WATER CORPORATION · 1,989 people · 2019
2/3 SYR4
Bromoform
0.6000 µg/L
No EPA limit set
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2019
2/3 SYR4
PFOA
0.0130 µg/L
No EPA limit set
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2025
1/3 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: CALDWELL VILLAGE PWS · 3,300 people · 2023
3/3 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 Caldwell

SupplierPopulation served
CALDWELL VILLAGE PWS 3,300
PURE WATER CORPORATION 1,989
PURE WATER SYSTEM 2 PWS 279

Frequently asked questions about Caldwell tap water

Is Caldwell tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Caldwell. 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 Caldwell?

3 public water suppliers report drinking-water monitoring for Caldwell, Ohio to the EPA. Each is listed above with its population served.

What contaminants are in Caldwell's water?

The contaminants EPA monitoring detected in Caldwell 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.