What was found in ZIP 18037
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.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 1800 µg/L 18% of the EPA limit 10000 µg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019
Highest in the ZIP: 3765 µg/L — WHITEHALL TWP AUTHORITY · 13,063 people · 2019 | 2/2 | SYR4 |
| Fluoride | 782 µg/L 20% of the EPA limit 4000 µg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 1/2 | SYR4 |
| Copper | 329.55 µg/L 25% of the EPA limit 1300 µg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019
Highest in the ZIP: 448.8 µg/L — WHITEHALL TWP AUTHORITY · 13,063 people · 2019 | 2/2 | SYR4 |
| TTHM | 79.19 µg/L 99% of the EPA limit 80 µg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 2/2 | SYR4 |
| Chloroform | 67.86 µg/L No EPA limit set Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 2/2 | SYR4 |
| Barium | 25.2 µg/L 1.3% of the EPA limit 2000 µg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019
Highest in the ZIP: 51 µg/L — WHITEHALL TWP AUTHORITY · 13,063 people · 2018 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 50.85 µg/L 85% of the EPA limit 60 µg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 27.275 µg/L No EPA limit set Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 27.09 µg/L No EPA limit set Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 1/2 | SYR4 |
| Cyanide | 5 µg/L 2.5% of the EPA limit 200 µg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019
Highest in the ZIP: 13 µg/L — WHITEHALL TWP AUTHORITY · 13,063 people · 2018 | 2/2 | SYR4 |
| Lead | 11.47 µg/L 76% of the EPA limit 15 µg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 10.265 µg/L No EPA limit set Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 2/2 | SYR4 |
| Selenium | 4 µg/L 8% of the EPA limit 50 µg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 2/2 | SYR4 |
| cis-1,2-Dichloroethylene | 3.3125 µg/L 4.7% of the EPA limit 70 µg/L Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2019 | 1/2 | SYR4 |
| Xylenes, Total | 3.2 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2019 | 1/2 | SYR4 |
| Chromium | 3 µg/L 3% of the EPA limit 100 µg/L Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2018 | 1/2 | SYR4 |
| trans-1,2-Dichloroethylene | 2.85 µg/L 2.9% of the EPA limit 100 µg/L Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 1.865 µg/L No EPA limit set Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 2/2 | SYR4 |
| Trichloroethylene | 1.835 µg/L 37% of the EPA limit 5 µg/L Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 1.2586 µg/L 4.2% of the EPA limit 30 µg/L Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2017 | 1/2 | SYR4 |
| Nitrite | 1 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2019 | 2/2 | SYR4 |
| Ethylbenzene | 0.6000 µg/L 0.1% of the EPA limit 700 µg/L Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2019 | 1/2 | SYR4 |
| Dichloromethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0152 µg/L No EPA limit set Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2025 | 1/2 | UCMR-5 |
| PFHXS | 0.0070 µg/L No EPA limit set Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2025 | 1/2 | UCMR-5 |
| Pfhxa | 0.0066 µg/L No EPA limit set Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2025 | 1/2 | UCMR-5 |
| PFNA | 0.0061 µg/L No EPA limit set Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2025 | 1/2 | UCMR-5 |
| PFOS | 0.0054 µg/L No EPA limit set Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2025 | 1/2 | UCMR-5 |
| Pfba | 0.0052 µg/L No EPA limit set Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2025 | 1/2 | UCMR-5 |
| PFOA | 0.0049 µg/L No EPA limit set Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: NORTHAMPTON BORO MUNI AUTH · 40,000 people · 2025
Highest in the ZIP: 0.0040 mg/L — WHITEHALL TWP AUTHORITY · 13,063 people · 2025 | 2/2 | LCR |
| PFBS | 0.0037 µg/L No EPA limit set Highest in the ZIP: WHITEHALL TWP AUTHORITY · 13,063 people · 2025 | 1/2 | 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 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 18037
| Supplier | State | Population served |
|---|---|---|
| NORTHAMPTON BORO MUNI AUTH | PA | 40,000 |
| WHITEHALL TWP AUTHORITY | PA | 13,063 |
Frequently asked questions about ZIP 18037 tap water
Is the tap water in ZIP 18037 safe to drink?
EPA testing detected 32 contaminants across the water suppliers serving ZIP 18037. 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 18037?
2 public water suppliers report EPA drinking-water monitoring for ZIP 18037. Each is listed above with its population served.
What contaminants are in ZIP 18037'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.