Is Hudson Water Dept Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Hillsborough

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MR	Monitoring	Unaddressed	2026-01-01 → 2026-04-01
MR	Monitoring	Unaddressed	2026-01-01 → 2026-04-01
MR	Monitoring	Resolved	2021-04-01 → 2021-07-01
MR	Monitoring	Resolved	2021-04-01 → 2021-07-01
MR	Monitoring	Resolved	2021-04-01 → 2021-07-01
MR	Monitoring	Resolved	2021-04-01 → 2021-07-01
MR	Monitoring	Resolved	2021-04-01 → 2021-07-01
MR	Monitoring	Resolved	2021-04-01 → 2021-07-01
MR	Monitoring	Resolved	2021-04-01 → 2021-07-01
MR	Monitoring	Resolved	2021-04-01 → 2021-07-01

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfhxa	0.0040 µg/L	2/2	2025
PFOA	0.0090 µg/L	2/2	2025
Pfpea	0.0050 µg/L	2/2	2025

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Chloroform	25.55 µg/L No EPA limit set worst single sample: 33 µg/L	90/103	SYR4	2014–2019
TTHM	43.8 µg/L 55% of the EPA limit 80 µg/L worst single sample: 53 µg/L	89/103	SYR4	2014–2019
Bromodichloromethane	11.9335 µg/L No EPA limit set worst single sample: 14 µg/L	88/103	SYR4	2014–2019
Dibromochloromethane	5.9405 µg/L No EPA limit set worst single sample: 8.5 µg/L	88/103	SYR4	2014–2019
Total Haloacetic Acids (HAA5)	14.95 µg/L 25% of the EPA limit 60 µg/L worst single sample: 21 µg/L	82/88	SYR4	2014–2019
Dichloroacetic Acid	6.3 µg/L No EPA limit set worst single sample: 8.5 µg/L	76/88	SYR4	2014–2019
Copper	451.2 µg/L 35% of the EPA limit 1300 µg/L worst single sample: 874 µg/L	64/65	SYR4	2014–2018
Trichloroacetic Acid	7.295 µg/L No EPA limit set worst single sample: 8.6 µg/L	62/88	SYR4	2014–2019
Bromoform	1.155 µg/L No EPA limit set worst single sample: 1.4 µg/L	50/103	SYR4	2014–2019
Dibromoacetic Acid	1.7 µg/L No EPA limit set worst single sample: 2.1 µg/L	48/88	SYR4	2014–2019
Nitrate	2120.25 µg/L 21% of the EPA limit 10000 µg/L worst single sample: 2126 µg/L	26/32	SYR4	2014–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	17/17	LCR	2024
Barium	42.6528 µg/L 2.1% of the EPA limit 2000 µg/L worst single sample: 48.041 µg/L	5/5	SYR4	2014–2017
Lead	1.935 µg/L 13% of the EPA limit 15 µg/L worst single sample: 2.1 µg/L	4/60	SYR4	2015–2018
Chromium	1.1396 µg/L 1.1% of the EPA limit 100 µg/L worst single sample: 1.144 µg/L	3/5	SYR4	2014–2017
Combined Radium (-226 And -228)	1.255 pCi/L 25% of the EPA limit 5 pCi/L worst single sample: 1.3 pCi/L	2/2	SYR4	2015
Gross Alpha, Excl. Radon And U	0.5850 pCi/L 3.9% of the EPA limit 15 pCi/L worst single sample: 0.6000 pCi/L	2/2	SYR4	2015
Monochloroacetic Acid	5 µg/L No EPA limit set	1/88	SYR4	2014–2019

86 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)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: ELVIS DHIMA

Frequently asked questions about Hudson Water Dept

Is Hudson Water Dept tap water safe to drink?

EPA monitoring detected 21 contaminants in Hudson 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 Hudson Water Dept's water?

EPA monitoring detected Chloroform, TTHM, Bromodichloromethane, Dibromochloromethane, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Hudson Water Dept serve?

Hudson Water Dept reports serving 16,700 people in New Hampshire, per its EPA record.

Has Hudson Water Dept had any water quality violations?

The EPA has 12 violations on file for Hudson Water Dept, of which 0 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.