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Tap water quality report

Northampton, PA

EPA monitoring detected 19 contaminants across the 3 water suppliers serving Northampton. 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
40,490
people served
19
contaminants found
Pennsylvania rankings Lead in Pennsylvania PFAS in Pennsylvania

What was found in Northampton'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
25200 µg/L 252%
of the EPA limit, in the worst sample — 10000 µg/L
 3/3 SYR4
Copper
1920 µg/L 148%
of the EPA limit, in the worst sample — 1300 µg/L
 3/3 SYR4
Fluoride
790 µg/L 20%
of the EPA limit 4000 µg/L
 1/3 SYR4
TTHM
99.9 µg/L 125%
of the EPA limit, in the worst sample — 80 µg/L
 3/3 SYR4
Chloroform
91.4 µg/L
No EPA limit set
 3/3 SYR4
Total Haloacetic Acids (HAA5)
81.1 µg/L 135%
of the EPA limit, in the worst sample — 60 µg/L
 3/3 SYR4
Barium
42 µg/L 2.1%
of the EPA limit 2000 µg/L
 2/3 SYR4
Trichloroacetic Acid
28 µg/L
No EPA limit set
 2/3 SYR4
Dichloroacetic Acid
27.7 µg/L
No EPA limit set
 1/3 SYR4
Lead
13 µg/L 87%
of the EPA limit 15 µg/L
 3/3 SYR4
Bromodichloromethane
12.3 µg/L
No EPA limit set
 3/3 SYR4
Chromium
12 µg/L 12%
of the EPA limit 100 µg/L
 2/3 SYR4
Cyanide
5 µg/L 2.5%
of the EPA limit 200 µg/L
 1/3 SYR4
Toluene
4.2 µg/L 0.4%
of the EPA limit 1000 µg/L
 1/3 SYR4
Selenium
4 µg/L 8%
of the EPA limit 50 µg/L
 1/3 SYR4
Dibromochloromethane
2.8 µg/L
No EPA limit set
 3/3 SYR4
Nitrite
1 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/3 SYR4
Bromoform
0.9000 µg/L
No EPA limit set
 2/3 SYR4
Lead
0.0090 mg/L 60%
of the EPA limit 0.0150 mg/L
 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 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 Northampton

SupplierPopulation served
NORTHAMPTON BORO MUNI AUTH 40,000
WHISPERING HOLLOW-SOUTH MHP 400
MILLER MANOR HOMEOWNERS ASSOC 90

Frequently asked questions about Northampton tap water

Is Northampton tap water safe to drink?

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

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

What contaminants are in Northampton's water?

The contaminants EPA monitoring detected in Northampton include Nitrate, Copper, Fluoride, TTHM, Chloroform. 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.