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Tap water quality report

Claremont Water Dept

EPA monitoring tested this supplier for 107 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

107
contaminants tested
15
detected
9,000
people served
22
health-based violations
New Hampshire rankingsLead in New HampshirePFAS in New Hampshire
Water source
Surface water
Ownership
Local government
Counties served
Sullivan

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

22
health-based violations
100
violations on file
2
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2025-01-01 → 2025-02-01
TT Health-based Resolved 2025-01-01 → 2025-02-01
TT Health-based Resolved 2025-01-01 → 2025-02-01
TT Health-based Resolved 2025-01-01 → 2025-02-01
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-03-01 → 2014-03-31
MCL Health-based Resolved 2014-03-01 → 2014-03-31

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
130 µg/L 10%
of the EPA limit 1300 µg/L
worst single sample: 170 µg/L
86/86 SYR4 2014–2019
Bromodichloromethane
5.67 µg/L
No EPA limit set
worst single sample: 6.7 µg/L
44/48 SYR4 2014–2019
Chloroform
47 µg/L
No EPA limit set
worst single sample: 48 µg/L
44/48 SYR4 2014–2019
Dichloroacetic Acid
13.95 µg/L
No EPA limit set
worst single sample: 15 µg/L
42/42 SYR4 2014–2019
TTHM
52.62 µg/L 66%
of the EPA limit 80 µg/L
worst single sample: 55.5 µg/L
42/42 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
25.95 µg/L 43%
of the EPA limit 60 µg/L
worst single sample: 28.5 µg/L
42/42 SYR4 2014–2019
Trichloroacetic Acid
11.95 µg/L
No EPA limit set
worst single sample: 12 µg/L
42/42 SYR4 2014–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 22/22 LCR 2024
Lead
17.4 µg/L 116%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 20 µg/L
14/80 SYR4 2014–2019
Dibromochloromethane
0.7500 µg/L
No EPA limit set
worst single sample: 0.8000 µg/L
11/48 SYR4 2014–2019
Barium
5 µg/L 0.3%
of the EPA limit 2000 µg/L
 6/6 SYR4 2014–2019
Monochloroacetic Acid
2.5 µg/L
No EPA limit set
 2/42 SYR4 2014–2019
Beryllium, Total
1.5 µg/L 38%
of the EPA limit 4 µg/L
 1/6 SYR4 2014–2019
Cadmium
1.4 µg/L 28%
of the EPA limit 5 µg/L
 1/6 SYR4 2014–2019
Combined Radium (-226 And -228)
0.9000 pCi/L 18%
of the EPA limit 5 pCi/L
 1/1 SYR4 2016
92 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBromoformChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitrateNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TED WADLEIGH

Frequently asked questions about Claremont Water Dept

Is Claremont Water Dept tap water safe to drink?

EPA monitoring detected 15 contaminants in Claremont Water Dept's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Claremont Water Dept's water?

EPA monitoring detected Copper, Bromodichloromethane, Chloroform, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does Claremont Water Dept serve?

Claremont Water Dept reports serving 9,000 people in New Hampshire, per its EPA record.

Has Claremont Water Dept had any water quality violations?

The EPA has 100 violations on file for Claremont Water Dept, of which 22 are health-based (a contaminant limit or required treatment was breached) and 2 remain open. The rest are monitoring or reporting failures.

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.