Is Carroll Water Works Tap Water Safe? Quality Report

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

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
TT	Health-based	Resolved	1992-01-01 → 1994-12-10

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
Copper	331 µg/L 25% of the EPA limit 1300 µg/L worst single sample: 778 µg/L	21/22	SYR4	2015–2019
Lead	11.595 µg/L 77% of the EPA limit 15 µg/L worst single sample: 20.5 µg/L	14/22	SYR4	2015–2019
Fluoride	388.5 µg/L 9.7% of the EPA limit 4000 µg/L worst single sample: 390 µg/L	2/2	SYR4	2016–2019
Lead	0.0290 mg/L 193% above the EPA limit of 0.0150 mg/L	2/2	LCR	2002
Chromium	1 µg/L 1% of the EPA limit 100 µg/L	1/2	SYR4	2016–2019
Combined Uranium	1.6 µg/L 5.3% of the EPA limit 30 µg/L	1/1	SYR4	2019

63 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformCombined Radium (-226 And -228)DichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrateNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: SCOTT SONIA

Frequently asked questions about Carroll Water Works

Is Carroll Water Works tap water safe to drink?

EPA monitoring detected 6 contaminants in Carroll Water Works'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 Carroll Water Works's water?

EPA monitoring detected Copper, Lead, Fluoride, Lead, Chromium, and others. The full list with the level and data source for each is above.

How many people does Carroll Water Works serve?

Carroll Water Works reports serving 875 people in New Hampshire, per its EPA record.

Has Carroll Water Works had any water quality violations?

The EPA has 1 violation on file for Carroll Water Works, of which 1 is health-based (a contaminant limit or required treatment was breached) and 0 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.