← Hummelstown, PA

Tap water quality report

ZIP 17033 — Hummelstown, PA

EPA monitoring across the 1 water supplier serving ZIP 17033 in Hummelstown, PA 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.

1
water supplier
50,200
people served
20
contaminants found

What was found in ZIP 17033

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
4150 µg/L 42%
of the EPA limit 10000 µg/L
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Fluoride
1009.9999999999999 µg/L 25%
of the EPA limit 4000 µg/L
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Copper
281.0999999999999 µg/L 22%
of the EPA limit 1300 µg/L
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
TTHM
88.98 µg/L 111%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Chloroform
71.46000000000001 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
29.040000000000003 µg/L 48%
of the EPA limit 60 µg/L
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Bromodichloromethane
14 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Dichloroacetic Acid
11.425 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Lithium
11.4 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2024
1/1 UCMR-5
Trichloroacetic Acid
8.51 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Lead
5.699999999999996 µg/L 38%
of the EPA limit 15 µg/L
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Dibromochloromethane
3.7400000000000007 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Dalapon
2.4 µg/L 1.2%
of the EPA limit 200 µg/L
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Atrazine
0.2000 µg/L 6.7%
of the EPA limit 3 µg/L
Main supplier: PA AMER WATER CO · 50,200 people · 2019
1/1 SYR4
Pfpea
0.0069 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2024
1/1 UCMR-5
Pfba
0.0067 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2024
1/1 UCMR-5
Pfhxa
0.0057 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2024
1/1 UCMR-5
PFOA
0.0043 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2024
1/1 UCMR-5
PFBS
0.0039 µg/L
No EPA limit set
Main supplier: PA AMER WATER CO · 50,200 people · 2024
1/1 UCMR-5
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
Main supplier: PA AMER WATER CO · 50,200 people · 2025
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 17033

SupplierStatePopulation served
PA AMER WATER CO PA 50,200

Frequently asked questions about ZIP 17033 tap water

Is the tap water in ZIP 17033 safe to drink?

EPA testing detected 20 contaminants across the water suppliers serving ZIP 17033. 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 17033?

1 public water supplier report EPA drinking-water monitoring for ZIP 17033. Each is listed above with its population served.

What contaminants are in ZIP 17033's water?

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