What was found in ZIP 01778
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 | 3700 µg/L 37% of the EPA limit 10000 µg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Fluoride | 902 µg/L 23% of the EPA limit 4000 µg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Copper | 46 µg/L 3.5% of the EPA limit 1300 µg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| TTHM | 45.86 µg/L 57% of the EPA limit 80 µg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Barium | 34.75 µg/L 1.7% of the EPA limit 2000 µg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Chloroform | 19.125 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 18.02 µg/L 30% of the EPA limit 60 µg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 17.61 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 12.975 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 10.85 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 4.991 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Bromoform | 4.162 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Bromate | 3.19 µg/L 32% of the EPA limit 10 µg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.6295 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 2.6165 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.584 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Mercury | 0.2000 µg/L 10% of the EPA limit 2 µg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2019 | 1/1 | SYR4 |
| Simazine | 0.1200 µg/L 3% of the EPA limit 4 µg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2018 | 1/1 | SYR4 |
| Pfpea | 0.0100 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2023 | 1/1 | UCMR-5 |
| PFOA | 0.0090 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2023 | 1/1 | UCMR-5 |
| Pfba | 0.0050 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2023 | 1/1 | UCMR-5 |
| Lead | 0.0042 mg/L 28% of the EPA limit 0.0150 mg/L Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2025 | 1/1 | LCR |
| Pfhpa | 0.0040 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2023 | 1/1 | UCMR-5 |
| Pfhxa | 0.0040 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2023 | 1/1 | UCMR-5 |
| PFOS | 0.0040 µg/L No EPA limit set Main supplier: WAYLAND WATER DEPARTMENT · 14,096 people · 2023 | 1/1 | 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 01778
| Supplier | State | Population served |
|---|---|---|
| WAYLAND WATER DEPARTMENT | MA | 14,096 |
Frequently asked questions about ZIP 01778 tap water
Is the tap water in ZIP 01778 safe to drink?
EPA testing detected 26 contaminants across the water suppliers serving ZIP 01778. 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 01778?
1 public water supplier report EPA drinking-water monitoring for ZIP 01778. Each is listed above with its population served.
What contaminants are in ZIP 01778's water?
EPA monitoring detected Nitrate, Fluoride, Copper, TTHM, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.