What was found in ZIP 21613
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 |
|---|---|---|---|
| Fluoride | 1124.5 µg/L 28% of the EPA limit 4000 µg/L Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2018 | 1/1 | SYR4 |
| TTHM | 22.94 µg/L 29% of the EPA limit 80 µg/L Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2019 | 1/1 | SYR4 |
| Lithium | 16.1 µg/L No EPA limit set Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2025 | 1/1 | UCMR-5 |
| Gross Alpha, Excl. Radon And U | 8.6 pCi/L 57% of the EPA limit 15 pCi/L Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2018 | 1/1 | SYR4 |
| Chloroform | 7.535 µg/L No EPA limit set Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2015 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 6.86 pCi/L No EPA limit set Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2018 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 6.44 µg/L 11% of the EPA limit 60 µg/L Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 4.6 µg/L 77% of the EPA limit 6 µg/L Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2018 | 1/1 | SYR4 |
| Bromodichloromethane | 3.79 µg/L No EPA limit set Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2015 | 1/1 | SYR4 |
| Dibromochloromethane | 2.895 µg/L No EPA limit set Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2015 | 1/1 | SYR4 |
| Arsenic | 2.71 µg/L 27% of the EPA limit 10 µg/L Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2018 | 1/1 | SYR4 |
| Dichloroacetic Acid | 2.2795 µg/L No EPA limit set Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2015 | 1/1 | SYR4 |
| Trichloroacetic Acid | 2.276 µg/L No EPA limit set Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2015 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.076 µg/L No EPA limit set Main supplier: CITY OF CAMBRIDGE WATER · 15,000 people · 2015 | 1/1 | SYR4 |
| Lead | 0.0041 mg/L 27% of the EPA limit 0.0150 mg/L Main supplier: CITY OF CAMBRIDGE WATER · 15,000 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 21613
| Supplier | State | Population served |
|---|---|---|
| CITY OF CAMBRIDGE WATER | MD | 15,000 |
Frequently asked questions about ZIP 21613 tap water
Is the tap water in ZIP 21613 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 21613. 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 21613?
1 public water supplier report EPA drinking-water monitoring for ZIP 21613. Each is listed above with its population served.
What contaminants are in ZIP 21613's water?
EPA monitoring detected Fluoride, TTHM, Lithium, Gross Alpha, Excl. Radon And U, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.