What was found in North Yarmouth'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 | 1900 µg/L 19% of the EPA limit 10000 µg/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 1865 µg/L 19% of the EPA limit 10000 µg/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2017 | 1/1 | SYR4 |
| Copper | 342.3 µg/L 26% of the EPA limit 1300 µg/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2019 | 1/1 | SYR4 |
| Lead | 10.355 µg/L 69% of the EPA limit 15 µg/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 7.16 µg/L 24% of the EPA limit 30 µg/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2017 | 1/1 | SYR4 |
| Barium | 6.465 µg/L 0.3% of the EPA limit 2000 µg/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2017 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.23 pCi/L 28% of the EPA limit 15 pCi/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2014 | 1/1 | SYR4 |
| TTHM | 2.96 µg/L 3.7% of the EPA limit 80 µg/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2019 | 1/1 | SYR4 |
| Chromium | 1.9 µg/L 1.9% of the EPA limit 100 µg/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2017 | 1/1 | SYR4 |
| Dibromochloromethane | 1.84 µg/L No EPA limit set Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2019 | 1/1 | SYR4 |
| Bromoform | 1.3 µg/L No EPA limit set Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.28475 pCi/L 26% of the EPA limit 5 pCi/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2018 | 1/1 | SYR4 |
| Bromodichloromethane | 1.1 µg/L No EPA limit set Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2019 | 1/1 | SYR4 |
| Arsenic | 0.8565 µg/L 8.6% of the EPA limit 10 µg/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2017 | 1/1 | SYR4 |
| Pfhxa | 0.0098 µg/L No EPA limit set Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0095 mg/L 63% of the EPA limit 0.0150 mg/L Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2025 | 1/1 | LCR |
| PFOA | 0.0092 µg/L No EPA limit set Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0089 µg/L No EPA limit set Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2025 | 1/1 | UCMR-5 |
| Pfba | 0.0068 µg/L No EPA limit set Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2025 | 1/1 | UCMR-5 |
| Pfhpa | 0.0045 µg/L No EPA limit set Main supplier: YARMOUTH WATER DISTRICT · 8,000 people · 2025 | 1/1 | UCMR-5 |
Water suppliers serving North Yarmouth
| Supplier | Population served |
|---|---|
| YARMOUTH WATER DISTRICT | 8,000 |
Frequently asked questions about North Yarmouth tap water
Is North Yarmouth tap water safe to drink?
EPA testing detected 20 contaminants in the water serving North Yarmouth. 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 North Yarmouth?
1 public water supplier report drinking-water monitoring for North Yarmouth, Maine to the EPA. Each is listed above with its population served.
What contaminants are in North Yarmouth's water?
The contaminants EPA monitoring detected in North Yarmouth include Nitrate, Nitrate-Nitrite, Copper, Lead, Combined Uranium. 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.