← St Thomas, PA

Tap water quality report

ZIP 17236 — St Thomas, PA

EPA monitoring across the 1 water supplier serving ZIP 17236 in St Thomas, PA detected 19 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.

1
water supplier
12,589
people served
19
contaminants found

What was found in ZIP 17236

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
4020 µg/L 40%
of the EPA limit 10000 µg/L
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Fluoride
1156 µg/L 29%
of the EPA limit 4000 µg/L
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Monochloroacetic Acid
800.432 µg/L
No EPA limit set
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Copper
138.65 µg/L 11%
of the EPA limit 1300 µg/L
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Lead
86.75 µg/L 578%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Barium
65 µg/L 3.3%
of the EPA limit 2000 µg/L
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
59.945 µg/L 100%
of the EPA limit 60 µg/L
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
TTHM
59.105 µg/L 74%
of the EPA limit 80 µg/L
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Chloroform
50.525 µg/L
No EPA limit set
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Trichloroacetic Acid
34.3 µg/L
No EPA limit set
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Dichloroacetic Acid
32 µg/L
No EPA limit set
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Monobromoacetic Acid
32 µg/L
No EPA limit set
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Lithium
19 µg/L
No EPA limit set
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2025
1/1 UCMR-5
Bromodichloromethane
8.9 µg/L
No EPA limit set
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Bromoform
3 µg/L
No EPA limit set
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Dibromochloromethane
3 µg/L
No EPA limit set
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
Xylenes, Total
1.4515 µg/L 0%
of the EPA limit 10000 µg/L
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2019
1/1 SYR4
6:2 Fts
0.0097 µg/L
No EPA limit set
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2025
1/1 UCMR-5
Lead
0.0039 mg/L 26%
of the EPA limit 0.0150 mg/L
Main supplier: BEAR VALLEY JOINT AUTH · 12,589 people · 2022
1/1 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 17236

SupplierStatePopulation served
BEAR VALLEY JOINT AUTH PA 12,589

Frequently asked questions about ZIP 17236 tap water

Is the tap water in ZIP 17236 safe to drink?

EPA testing detected 19 contaminants across the water suppliers serving ZIP 17236. 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 17236?

1 public water supplier report EPA drinking-water monitoring for ZIP 17236. Each is listed above with its population served.

What contaminants are in ZIP 17236's water?

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