Tap Water Results

Is Concord, NH tap water safe?

Data: U.S. EPA · How we read the data · How we check it

Summary

No federal limits exceeded in EPA data for Concord Water Dept.

Concord Water Dept supplies Concord (44,215 people).

Water system

Concord Water Dept

44,215 people · Surface water · EPA ID NH0501010

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Not detected
–10 pptNot detected
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot detected

ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.

Lead: 1 ppb at the 90th percentile (Dec 2023, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0

Across New Hampshire, 9 of 49 water systems EPA tested had PFAS above a 2024 federal limit, and 25 systems were above the lead action level in results from the last five years. New Hampshire results.

Concord homes and lead pipes

61%
of homes built before 1980 (New Hampshire 52%, US 50%)
37%
built before 1950 (New Hampshire 22%)
43%
of households rent (New Hampshire 27%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.

Housing: Census American Community Survey 2020–2024 5-year estimates for Concord city (tables B25034, B25003). Estimates for small places have a margin of error.

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Manchester 18 mi
Manchester Water Works
Manchester Water WorksAbove limit0 ppb
Londonderry 26 mi
Derry Water Dept
Derry Water DeptNone above limits0 ppb
Merrimack 26 mi
Merrimack Village District
Merrimack Village DistrictNone above limits0 ppb
Derry 28 mi
Derry Water Dept
Derry Water DeptNone above limits0 ppb
Rochester 30 mi
Rochester Water Dept
Rochester Water DeptNone above limits2 ppb
Hudson 33 mi
Hudson Water Dept
Hudson Water DeptAbove limit0 ppb
Concord ZIP codes (1)
  • 03301

Questions

Is Concord tap water safe to drink?

Concord Water Dept has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.

Who supplies water in Concord, NH?

Concord Water Dept, which serves 44,215 people.

Does Concord tap water have PFAS?

None detected above EPA's reporting limits. Concord Water Dept had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.

Do Concord homes have lead pipes?

Census estimates put 61% of Concord homes as built before 1980 (New Hampshire: 52%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Concord Water Dept's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.