What was found in Augusta'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 | 1610 µg/L 16% of the EPA limit 10000 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019 | 4/5 | SYR4 |
| Nitrate-Nitrite | 1132.5 µg/L 11% of the EPA limit 10000 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2018
Highest in the city: 1213 µg/L — SUMMER HAVEN APARTMENTS-BLDG 3 · 25 people · 2019 | 4/5 | SYR4 |
| Fluoride | 800 µg/L 20% of the EPA limit 4000 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019 | 5/5 | SYR4 |
| Copper | 430 µg/L 33% of the EPA limit 1300 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019
Highest in the city: 571.4 µg/L — TOGUS POND MOBILE HOME PARK · 53 people · 2018 | 5/5 | SYR4 |
| Nitrite | 40 µg/L 4% of the EPA limit 1000 µg/L Highest in the city: DEER RIDGE MOBILE HOME PARK · 33 people · 2018 | 1/5 | SYR4 |
| Lead | 4.51 µg/L 30% of the EPA limit 15 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019
Highest in the city: 35.32 µg/L — SUMMER HAVEN APARTMENTS-BLDG 1 · 55 people · 2019 | 4/5 | SYR4 |
| TTHM | 30.04 µg/L 38% of the EPA limit 80 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019 | 2/5 | SYR4 |
| Barium | 19.25 µg/L 1% of the EPA limit 2000 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2018 | 5/5 | SYR4 |
| Gross Alpha, Excl. Radon And U | 18.985 pCi/L 127% of the EPA limit, at the 95th percentile of samples — 15 pCi/L Highest in the city: DEER RIDGE MOBILE HOME PARK · 33 people · 2017 | 2/5 | SYR4 |
| Chloroform | 16.6 µg/L No EPA limit set Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019 | 1/5 | SYR4 |
| Combined Uranium | 3.18 µg/L 11% of the EPA limit 30 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2017
Highest in the city: 12.855 µg/L — DEER RIDGE MOBILE HOME PARK · 33 people · 2018 | 3/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 5.48 µg/L 9.1% of the EPA limit 60 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019
Highest in the city: 9.9 µg/L — DEER RIDGE MOBILE HOME PARK · 33 people · 2019 | 2/5 | SYR4 |
| Bromodichloromethane | 9.4 µg/L No EPA limit set Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019 | 1/5 | SYR4 |
| Combined Radium (-226 And -228) | 1.033 pCi/L 21% of the EPA limit 5 pCi/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2015
Highest in the city: 5.4795 pCi/L — DEER RIDGE MOBILE HOME PARK · 33 people · 2019 | 2/5 | SYR4 |
| Dibromochloromethane | 5.44 µg/L No EPA limit set Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019 | 1/5 | SYR4 |
| Arsenic | 4.55 µg/L 45% of the EPA limit 10 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2018 | 5/5 | SYR4 |
| Chromium | 3.3 µg/L 3.3% of the EPA limit 100 µg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2018 | 5/5 | SYR4 |
| Dichloroacetic Acid | 3.11 µg/L No EPA limit set Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019 | 1/5 | SYR4 |
| Trichloroacetic Acid | 2.385 µg/L No EPA limit set Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2019 | 1/5 | SYR4 |
| Styrene | 0.6000 µg/L 0.6% of the EPA limit 100 µg/L Highest in the city: SUMMER HAVEN APARTMENTS-BLDG 1 · 55 people · 2019 | 1/5 | SYR4 |
| Lead | 0.0011 mg/L 7.3% of the EPA limit 0.0150 mg/L Main supplier: GREATER AUGUSTA UTILITY DISTRICT · 13,750 people · 2025
Highest in the city: 0.0056 mg/L — SUMMER HAVEN APARTMENTS-BLDG 3 · 25 people · 2023 | 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 Augusta
| Supplier | Population served |
|---|---|
| GREATER AUGUSTA UTILITY DISTRICT | 13,750 |
| SUMMER HAVEN APARTMENTS-BLDG 1 | 55 |
| TOGUS POND MOBILE HOME PARK | 53 |
| DEER RIDGE MOBILE HOME PARK | 33 |
| SUMMER HAVEN APARTMENTS-BLDG 3 | 25 |
Frequently asked questions about Augusta tap water
Is Augusta tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Augusta. 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 Augusta?
5 public water suppliers report drinking-water monitoring for Augusta, Maine to the EPA. Each is listed above with its population served.
What contaminants are in Augusta's water?
The contaminants EPA monitoring detected in Augusta include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Nitrite. 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.