What was found in Arundel'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 | 558.5 µg/L 5.6% of the EPA limit 10000 µg/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2019
Highest in the city: 10850 µg/L — CHARTER OAKS VILLAGE COOPERATIVE · 105 people · 2019 | 4/4 | SYR4 |
| Nitrate-Nitrite | 531.5 µg/L 5.3% of the EPA limit 10000 µg/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2019
Highest in the city: 6459.5 µg/L — CHARTER OAKS VILLAGE COOPERATIVE · 105 people · 2019 | 4/4 | SYR4 |
| Fluoride | 1282.5 µg/L 32% of the EPA limit 4000 µg/L Highest in the city: THE PINES AT ARUNDEL · 105 people · 2019 | 2/4 | SYR4 |
| Copper | 64.895 µg/L 5% of the EPA limit 1300 µg/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2019
Highest in the city: 90.3 µg/L — CHARTER OAKS VILLAGE COOPERATIVE · 105 people · 2019 | 4/4 | SYR4 |
| Arsenic | 2.355 µg/L 24% of the EPA limit 10 µg/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2019
Highest in the city: 73.55 µg/L — THE PINES AT ARUNDEL · 105 people · 2019 | 4/4 | SYR4 |
| Lead | 4.5935 µg/L 31% of the EPA limit 15 µg/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2019
Highest in the city: 44.75 µg/L — CHARTER OAKS VILLAGE COOPERATIVE · 105 people · 2019 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 34.74 pCi/L 232% of the EPA limit, at the 95th percentile of samples — 15 pCi/L Highest in the city: THE PINES AT ARUNDEL · 105 people · 2018 | 2/4 | SYR4 |
| Barium | 8.1805 µg/L 0.4% of the EPA limit 2000 µg/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2019
Highest in the city: 21.865 µg/L — THE PINES AT ARUNDEL · 105 people · 2019 | 4/4 | SYR4 |
| Combined Uranium | 1.1725 µg/L 3.9% of the EPA limit 30 µg/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2019
Highest in the city: 12.4 µg/L — THE PINES AT ARUNDEL · 105 people · 2019 | 4/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 4.8 µg/L 80% of the EPA limit 6 µg/L Highest in the city: CHARTER OAKS VILLAGE COOPERATIVE · 105 people · 2017 | 1/4 | SYR4 |
| Chromium | 2.9 µg/L 2.9% of the EPA limit 100 µg/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2019
Highest in the city: 3.765 µg/L — THE PINES AT ARUNDEL · 105 people · 2019 | 4/4 | SYR4 |
| Antimony, Total | 0.8290 µg/L 14% of the EPA limit 6 µg/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2019
Highest in the city: 2.8 µg/L — THE PINES AT ARUNDEL · 105 people · 2019 | 3/4 | SYR4 |
| Toluene | 2.7 µg/L 0.3% of the EPA limit 1000 µg/L Highest in the city: THE PINES AT ARUNDEL · 105 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.7300 pCi/L 15% of the EPA limit 5 pCi/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2016
Highest in the city: 2.56885 pCi/L — CHARTER OAKS VILLAGE COOPERATIVE · 105 people · 2015 | 4/4 | SYR4 |
| Chloroform | 1.8 µg/L No EPA limit set Highest in the city: CHARTER OAKS VILLAGE COOPERATIVE · 105 people · 2015 | 1/4 | SYR4 |
| TTHM | 0.7000 µg/L 0.9% of the EPA limit 80 µg/L Highest in the city: CHARTER OAKS VILLAGE COOPERATIVE · 105 people · 2019 | 1/4 | SYR4 |
| Mercury | 0.6800 µg/L 34% of the EPA limit 2 µg/L Highest in the city: CHARTER OAKS VILLAGE COOPERATIVE · 105 people · 2019 | 1/4 | SYR4 |
| Lead | 0.00068 mg/L 4.5% of the EPA limit 0.0150 mg/L Main supplier: SHADY OAKS MOBILE HOME PARK · 185 people · 2023
Highest in the city: 0.0025 mg/L — CHARTER OAKS VILLAGE COOPERATIVE · 105 people · 2025 | 4/4 | 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 Arundel
| Supplier | Population served |
|---|---|
| SHADY OAKS MOBILE HOME PARK | 185 |
| CHARTER OAKS VILLAGE COOPERATIVE | 105 |
| THE PINES AT ARUNDEL | 105 |
| CROSSROADS COMMUNITY MHP | 57 |
Frequently asked questions about Arundel tap water
Is Arundel tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Arundel. 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 Arundel?
4 public water suppliers report drinking-water monitoring for Arundel, Maine to the EPA. Each is listed above with its population served.
What contaminants are in Arundel's water?
The contaminants EPA monitoring detected in Arundel include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Arsenic. 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.