What was found in Chatham's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 603 µg/L 6% of the EPA limit 10000 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2019
Highest in the city: 6620 µg/L — BREEZY HILLS COMMUNITY · 51 people · 2019 | 5/5 | SYR4 |
| Barium | 95.98 µg/L 4.8% of the EPA limit 2000 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017
Highest in the city: 288 µg/L — CREEKSIDE MHP · 36 people · 2017 | 5/5 | SYR4 |
| Fluoride | 100 µg/L 2.5% of the EPA limit 4000 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017
Highest in the city: 200 µg/L — CREEKSIDE MHP · 36 people · 2017 | 3/5 | SYR4 |
| Copper | 20 µg/L 1.5% of the EPA limit 1300 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2016 | 1/5 | SYR4 |
| Cyanide | 10 µg/L 5% of the EPA limit 200 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017 | 1/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 7.34 µg/L 12% of the EPA limit 60 µg/L Highest in the city: GOLDEN ACRES OWNER LLC · 210 people · 2018 | 1/5 | SYR4 |
| Arsenic | 5 µg/L 50% of the EPA limit 10 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017
Highest in the city: 6.9 µg/L — CREEKSIDE MHP · 36 people · 2017 | 2/5 | SYR4 |
| TTHM | 4.4 µg/L 5.5% of the EPA limit 80 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2019
Highest in the city: 4.68 µg/L — GOLDEN ACRES OWNER LLC · 210 people · 2018 | 3/5 | SYR4 |
| Monochloroacetic Acid | 3.4 µg/L No EPA limit set Main supplier: CHATHAM VILLAGE · 2,156 people · 2019 | 2/5 | SYR4 |
| Chloroform | 1.6 µg/L No EPA limit set Main supplier: CHATHAM VILLAGE · 2,156 people · 2019
Highest in the city: 3.385 µg/L — GOLDEN ACRES OWNER LLC · 210 people · 2018 | 2/5 | SYR4 |
| Dichloroacetic Acid | 2.99 µg/L No EPA limit set Highest in the city: GOLDEN ACRES OWNER LLC · 210 people · 2018 | 1/5 | SYR4 |
| Trichloroacetic Acid | 2.38 µg/L No EPA limit set Highest in the city: GOLDEN ACRES OWNER LLC · 210 people · 2018 | 1/5 | SYR4 |
| Chromium | 2 µg/L 2% of the EPA limit 100 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017 | 1/5 | SYR4 |
| Lead | 2 µg/L 13% of the EPA limit 15 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2016 | 1/5 | SYR4 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017 | 1/5 | SYR4 |
| Bromodichloromethane | 1.5 µg/L No EPA limit set Main supplier: CHATHAM VILLAGE · 2,156 people · 2019 | 2/5 | SYR4 |
| Dibromochloromethane | 1.3 µg/L No EPA limit set Main supplier: CHATHAM VILLAGE · 2,156 people · 2019 | 2/5 | SYR4 |
| Gross Beta Particle Activity | 1.04 pCi/L No EPA limit set Main supplier: CHATHAM VILLAGE · 2,156 people · 2018 | 2/5 | SYR4 |
| Cadmium | 1 µg/L 20% of the EPA limit 5 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017 | 1/5 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.8600 pCi/L 5.7% of the EPA limit 15 pCi/L Highest in the city: GLEASONS MOBILE HOME PARK - CHATHAM · 40 people · 2015 | 1/5 | SYR4 |
| Bromoform | 0.6800 µg/L No EPA limit set Highest in the city: BREEZY HILLS COMMUNITY · 51 people · 2018 | 1/5 | SYR4 |
| Styrene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L Highest in the city: CREEKSIDE MHP · 36 people · 2017 | 1/5 | SYR4 |
| Antimony, Total | 0.4000 µg/L 6.7% of the EPA limit 6 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017 | 1/5 | SYR4 |
| Mercury | 0.4000 µg/L 20% of the EPA limit 2 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017 | 1/5 | SYR4 |
| Beryllium, Total | 0.3000 µg/L 7.5% of the EPA limit 4 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017 | 1/5 | SYR4 |
| Thallium, Total | 0.3000 µg/L 15% of the EPA limit 2 µg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2017 | 1/5 | SYR4 |
| Lead | 0.0025 mg/L 17% of the EPA limit 0.0150 mg/L Main supplier: CHATHAM VILLAGE · 2,156 people · 2025
Highest in the city: 0.0055 mg/L — BREEZY HILLS COMMUNITY · 51 people · 2025 | 5/5 | 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.
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 Chatham
| Supplier | Population served |
|---|---|
| CHATHAM VILLAGE | 2,156 |
| GOLDEN ACRES OWNER LLC | 210 |
| BREEZY HILLS COMMUNITY | 51 |
| GLEASONS MOBILE HOME PARK - CHATHAM | 40 |
| CREEKSIDE MHP | 36 |
Frequently asked questions about Chatham tap water
Is Chatham tap water safe to drink?
EPA testing detected 27 contaminants in the water serving Chatham. 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 Chatham?
5 public water suppliers report drinking-water monitoring for Chatham, New York to the EPA. Each is listed above with its population served.
What contaminants are in Chatham's water?
The contaminants EPA monitoring detected in Chatham include Nitrate, Barium, Fluoride, Copper, Cyanide. The full list, with the level at the main supplier 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.