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Tap water quality report

Mechanicsburg, PA

EPA monitoring detected 21 contaminants across the 3 water suppliers serving Mechanicsburg. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

3
water suppliers
105,687
people served
21
contaminants found
Pennsylvania rankings Lead in Pennsylvania PFAS in Pennsylvania

What was found in Mechanicsburg's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
5350 µg/L 54%
of the EPA limit 10000 µg/L
 2/3 SYR4
Barium
1200 µg/L 60%
of the EPA limit 2000 µg/L
 2/3 SYR4
Fluoride
740 µg/L 19%
of the EPA limit 4000 µg/L
 3/3 SYR4
Copper
427 µg/L 33%
of the EPA limit 1300 µg/L
 3/3 SYR4
TTHM
90.8 µg/L 114%
of the EPA limit, in the worst sample — 80 µg/L
 2/3 SYR4
Chloroform
80.5 µg/L
No EPA limit set
 3/3 SYR4
Total Haloacetic Acids (HAA5)
38.5 µg/L 64%
of the EPA limit 60 µg/L
 2/3 SYR4
Lead
32 µg/L 213%
of the EPA limit, in the worst sample — 15 µg/L
 1/3 SYR4
Selenium
14 µg/L 28%
of the EPA limit 50 µg/L
 1/3 SYR4
Dichloroacetic Acid
10.1 µg/L
No EPA limit set
 1/3 SYR4
Trichloroacetic Acid
10.1 µg/L
No EPA limit set
 1/3 SYR4
Bromodichloromethane
9.9 µg/L
No EPA limit set
 2/3 SYR4
Cyanide
7 µg/L 3.5%
of the EPA limit 200 µg/L
 1/3 SYR4
Arsenic
5.9 µg/L 59%
of the EPA limit 10 µg/L
 1/3 SYR4
Chromium
5.8 µg/L 5.8%
of the EPA limit 100 µg/L
 2/3 SYR4
Dibromochloromethane
4 µg/L
No EPA limit set
 2/3 SYR4
PFOS
0.0104 µg/L
No EPA limit set
 1/3 UCMR-5
Lead
0.0080 mg/L 53%
of the EPA limit 0.0150 mg/L
 3/3 LCR
PFOA
0.0049 µg/L
No EPA limit set
 1/3 UCMR-5
Pfpea
0.0034 µg/L
No EPA limit set
 1/3 UCMR-5
PFBS
0.0032 µg/L
No EPA limit set
 1/3 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 single worst sample on record — 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 Mechanicsburg

SupplierPopulation served
PA AMERICAN WATER CO WEST 105,127
REGENCY WOODS MHP 450
SILVER SPRING COUNTRY ESTATES 110

Frequently asked questions about Mechanicsburg tap water

Is Mechanicsburg tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Mechanicsburg. 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 Mechanicsburg?

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

What contaminants are in Mechanicsburg's water?

The contaminants EPA monitoring detected in Mechanicsburg include Nitrate, Barium, Fluoride, Copper, TTHM. The full list, with the highest level found 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.