Is Thurston Woods Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: Strafford

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	Resolved	2010-07-01 → 2010-10-01
MR	Monitoring	Resolved	2010-07-01 → 2010-10-01

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	73.3331 µg/L 5.6% of the EPA limit 1300 µg/L worst single sample: 94.1 µg/L	14/14	SYR4	2014–2019
Nitrate	770 µg/L 7.7% of the EPA limit 10000 µg/L	10/12	SYR4	2014–2019
Arsenic	3.185 µg/L 32% of the EPA limit 10 µg/L worst single sample: 3.2 µg/L	4/25	SYR4	2014–2019
Bromodichloromethane	1.255 µg/L No EPA limit set worst single sample: 1.3 µg/L	4/4	SYR4	2014–2019
Chloroform	0.8850 µg/L No EPA limit set worst single sample: 0.9000 µg/L	4/4	SYR4	2014–2019
Dibromochloromethane	1 µg/L No EPA limit set	4/4	SYR4	2014–2019
TTHM	3.14 µg/L 3.9% of the EPA limit 80 µg/L worst single sample: 3.2 µg/L	4/4	SYR4	2014–2019
Barium	9.63535 µg/L 0.5% of the EPA limit 2000 µg/L worst single sample: 9.653 µg/L	2/2	SYR4	2016–2019
Chromium	2.652 µg/L 2.7% of the EPA limit 100 µg/L	1/2	SYR4	2016–2019
Combined Radium (-226 And -228)	1.1 pCi/L 22% of the EPA limit 5 pCi/L	1/1	SYR4	2015
Gross Alpha, Excl. Radon And U	1.8 pCi/L 12% of the EPA limit 15 pCi/L	1/1	SYR4	2015

64 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: LESLIE MORGAN

Frequently asked questions about Thurston Woods

Is Thurston Woods tap water safe to drink?

EPA monitoring detected 11 contaminants in Thurston Woods'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 Thurston Woods's water?

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

How many people does Thurston Woods serve?

Thurston Woods reports serving 90 people in New Hampshire, per its EPA record.

Has Thurston Woods had any water quality violations?

The EPA has 2 violations on file for Thurston Woods, of which 0 are 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.