Is Myerstown, PA Tap Water Safe? Quality & Contaminants

What was found in Myerstown'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.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate	14800 µg/L 148% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Copper	550.2499999999999 µg/L 42% of the EPA limit 1300 µg/L Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
TTHM	24 µg/L 30% of the EPA limit 80 µg/L Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Total Haloacetic Acids (HAA5)	18.099999999999998 µg/L 30% of the EPA limit 60 µg/L Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Chloroform	15 µg/L No EPA limit set Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Lead	12.399999999999999 µg/L 83% of the EPA limit 15 µg/L Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Dichloroacetic Acid	8.599999999999998 µg/L No EPA limit set Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Trichloroacetic Acid	7.799999999999997 µg/L No EPA limit set Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Bromodichloromethane	6 µg/L No EPA limit set Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Dibromochloromethane	3.4 µg/L No EPA limit set Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Arsenic	3 µg/L 30% of the EPA limit 10 µg/L Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2018	1/1	SYR4
Dibromoacetic Acid	1 µg/L No EPA limit set Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Bromoform	0.6000 µg/L No EPA limit set Main supplier: MYERSTOWN WATER AUTH · 9,500 people · 2019	1/1	SYR4
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: MYERSTOWN WATER AUTH · 9,500 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. 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 Myerstown

Supplier	Population served
MYERSTOWN WATER AUTH	9,500

Frequently asked questions about Myerstown tap water

Is Myerstown tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Myerstown. 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 Myerstown?

1 public water supplier report drinking-water monitoring for Myerstown, Pennsylvania to the EPA. Each is listed above with its population served.

What contaminants are in Myerstown's water?

The contaminants EPA monitoring detected in Myerstown include Nitrate, Copper, TTHM, Total Haloacetic Acids (HAA5), Chloroform. 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.