What was found in ZIP 01040
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 | 120 µg/L 1.2% of the EPA limit 10000 µg/L Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 56 µg/L 93% of the EPA limit 60 µg/L Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2019 | 1/1 | SYR4 |
| TTHM | 45.25 µg/L 57% of the EPA limit 80 µg/L Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2019 | 1/1 | SYR4 |
| Chloroform | 43 µg/L No EPA limit set Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2018 | 1/1 | SYR4 |
| Dichloroacetic Acid | 32.85 µg/L No EPA limit set Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2018 | 1/1 | SYR4 |
| Trichloroacetic Acid | 23 µg/L No EPA limit set Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2018 | 1/1 | SYR4 |
| Lithium | 10.7 µg/L No EPA limit set Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2024 | 1/1 | UCMR-5 |
| Di(2-ethylhexyl) Phthalate | 5.26 µg/L 88% of the EPA limit 6 µg/L Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.3 µg/L No EPA limit set Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2018 | 1/1 | SYR4 |
| Bromodichloromethane | 2.9 µg/L No EPA limit set Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2018 | 1/1 | SYR4 |
| Copper | 2.26 µg/L 0.2% of the EPA limit 1300 µg/L Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2018 | 1/1 | SYR4 |
| 2,4-D | 0.4390 µg/L 0.6% of the EPA limit 70 µg/L Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2019 | 1/1 | SYR4 |
| Hexachlorocyclopentadiene | 0.0959 µg/L 0.2% of the EPA limit 50 µg/L Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0090 mg/L 60% of the EPA limit 0.0150 mg/L Main supplier: HOLYOKE WATER WORKS · 37,838 people · 2023 | 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 01040
| Supplier | State | Population served |
|---|---|---|
| HOLYOKE WATER WORKS | MA | 37,838 |
Frequently asked questions about ZIP 01040 tap water
Is the tap water in ZIP 01040 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 01040. 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 01040?
1 public water supplier report EPA drinking-water monitoring for ZIP 01040. Each is listed above with its population served.
What contaminants are in ZIP 01040's water?
EPA monitoring detected Nitrate, Total Haloacetic Acids (HAA5), TTHM, Chloroform, Dichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.