Is Epping, NH Tap Water Safe? Quality & Contaminants

What was found in Epping'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	2300 µg/L 23% of the EPA limit 10000 µg/L Highest in the city: VILLAGES ON THE LAMPREY · 113 people · 2019	1/7	SYR4
Fluoride	990.5 µg/L 25% of the EPA limit 4000 µg/L Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2017 Highest in the city: 1060 µg/L — GOVERNORS GREEN · 53 people · 2017	6/7	SYR4
Copper	102 µg/L 7.8% of the EPA limit 1300 µg/L Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2019 Highest in the city: 531 µg/L — MELLING GLEN · 105 people · 2018	7/7	SYR4
Barium	37.7 µg/L 1.9% of the EPA limit 2000 µg/L Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2017 Highest in the city: 42.2465 µg/L — VILLAGES ON THE LAMPREY · 113 people · 2019	4/7	SYR4
Arsenic	10 µg/L 100% of the EPA limit 10 µg/L Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2019 Highest in the city: 13.9577 µg/L — GOVERNORS GREEN · 53 people · 2019	7/7	SYR4
Lead	3.585 µg/L 24% of the EPA limit 15 µg/L Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2019 Highest in the city: 7.705 µg/L — MELLING GLEN · 105 people · 2018	6/7	SYR4
Gross Alpha, Excl. Radon And U	3.48 pCi/L 23% of the EPA limit 15 pCi/L Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2018	7/7	SYR4
TTHM	3.41 µg/L 4.3% of the EPA limit 80 µg/L Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2019	1/7	SYR4
Chromium	2.21853 µg/L 2.2% of the EPA limit 100 µg/L Highest in the city: VILLAGES ON THE LAMPREY · 113 people · 2019	4/7	SYR4
Combined Radium (-226 And -228)	2 pCi/L 40% of the EPA limit 5 pCi/L Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2017	7/7	SYR4
Combined Uranium	0.4000 µg/L 1.3% of the EPA limit 30 µg/L Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2018 Highest in the city: 1.8 µg/L — VILLAGES ON THE LAMPREY · 113 people · 2015	5/7	SYR4
Bromoform	1.56 µg/L No EPA limit set Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2019	1/7	SYR4
Dibromochloromethane	1.375 µg/L No EPA limit set Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2019	1/7	SYR4
Bromodichloromethane	0.6000 µg/L No EPA limit set Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2019	1/7	SYR4
Mercury	0.1000 µg/L 5% of the EPA limit 2 µg/L Main supplier: EPPING WATER AND SEWER DEPT · 1,600 people · 2017 Highest in the city: 0.1300 µg/L — PLUMER COURT · 100 people · 2017	2/7	SYR4

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 Epping

Supplier	Population served
EPPING WATER AND SEWER DEPT	1,600
WOODLANDS	203
VILLAGES ON THE LAMPREY	113
MELLING GLEN	105
PLUMER COURT	100
GOVERNORS GREEN	53
EVANS TRAILER PARK	47

Frequently asked questions about Epping tap water

Is Epping tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Epping. 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 Epping?

7 public water suppliers report drinking-water monitoring for Epping, New Hampshire to the EPA. Each is listed above with its population served.

What contaminants are in Epping's water?

The contaminants EPA monitoring detected in Epping include Nitrate, Fluoride, Copper, Barium, 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.