What was found in Chambersburg'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 | 2473 µg/L 25% of the EPA limit 10000 µg/L Highest in the city: GUILFORD WATER AUTH · 28,135 people · 2019 | 4/5 | SYR4 |
| Fluoride | 1163.5 µg/L 29% of the EPA limit 4000 µg/L Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019 | 3/5 | SYR4 |
| Copper | 136 µg/L 10% of the EPA limit 1300 µg/L Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019
Highest in the city: 635.3 µg/L — GUILFORD WATER AUTH · 28,135 people · 2019 | 5/5 | SYR4 |
| Nitrite | 270 µg/L 27% of the EPA limit 1000 µg/L Highest in the city: GUILFORD WATER AUTH · 28,135 people · 2019 | 1/5 | SYR4 |
| Barium | 47.03 µg/L 2.4% of the EPA limit 2000 µg/L Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019
Highest in the city: 199 µg/L — T & J VALLEY VIEW MHP · 130 people · 2018 | 5/5 | SYR4 |
| TTHM | 67.54 µg/L 84% of the EPA limit 80 µg/L Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019 | 5/5 | SYR4 |
| Chloroform | 64.09 µg/L No EPA limit set Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019 | 5/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 47.91 µg/L 80% of the EPA limit 60 µg/L Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019 | 4/5 | SYR4 |
| Lead | 28.705 µg/L 191% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019 | 4/5 | SYR4 |
| Dichloroacetic Acid | 6.222 µg/L No EPA limit set Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019
Highest in the city: 12.15 µg/L — GUILFORD WATER AUTH · 28,135 people · 2019 | 3/5 | SYR4 |
| Trichloroacetic Acid | 11.405 µg/L No EPA limit set Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019 | 2/5 | SYR4 |
| Selenium | 11 µg/L 22% of the EPA limit 50 µg/L Highest in the city: GUILFORD WATER AUTH · 28,135 people · 2018 | 1/5 | SYR4 |
| Dibromoacetic Acid | 9.13 µg/L No EPA limit set Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019 | 2/5 | SYR4 |
| Bromodichloromethane | 5.14 µg/L No EPA limit set Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019 | 5/5 | SYR4 |
| Dibromochloromethane | 0.7795 µg/L No EPA limit set Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019
Highest in the city: 4.781 µg/L — GUILFORD WATER AUTH · 28,135 people · 2019 | 4/5 | SYR4 |
| Arsenic | 3.1 µg/L 31% of the EPA limit 10 µg/L Highest in the city: GUILFORD WATER AUTH · 28,135 people · 2018 | 2/5 | SYR4 |
| Monobromoacetic Acid | 3 µg/L No EPA limit set Highest in the city: GUILFORD WATER AUTH · 28,135 people · 2019 | 1/5 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2.3 µg/L 38% of the EPA limit 6 µg/L Highest in the city: SILVER SPRING WATER ASSN · 130 people · 2019 | 2/5 | SYR4 |
| Mercury | 1.2 µg/L 60% of the EPA limit 2 µg/L Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2019 | 1/5 | SYR4 |
| Bromoform | 0.7300 µg/L No EPA limit set Highest in the city: EDENVILLE WATER ASSN INC · 491 people · 2018 | 2/5 | SYR4 |
| Lead | 0.0047 mg/L 31% of the EPA limit 0.0150 mg/L Main supplier: CHAMBERSBURG BORO WATER SYS · 31,048 people · 2025
Highest in the city: 0.0100 mg/L — EDENVILLE WATER ASSN INC · 491 people · 1996 | 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 Chambersburg
| Supplier | Population served |
|---|---|
| CHAMBERSBURG BORO WATER SYS | 31,048 |
| GUILFORD WATER AUTH | 28,135 |
| EDENVILLE WATER ASSN INC | 491 |
| T & J VALLEY VIEW MHP | 130 |
| SILVER SPRING WATER ASSN | 130 |
Frequently asked questions about Chambersburg tap water
Is Chambersburg tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Chambersburg. 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 Chambersburg?
5 public water suppliers report drinking-water monitoring for Chambersburg, Pennsylvania to the EPA. Each is listed above with its population served.
What contaminants are in Chambersburg's water?
The contaminants EPA monitoring detected in Chambersburg include Nitrate, Fluoride, Copper, Nitrite, Barium. 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.