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Tap water quality report

Darby Field Commons

EPA monitoring tested this supplier for 76 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

76
contaminants tested
14
detected
70
people served
24
health-based violations
New Hampshire rankingsLead in New HampshirePFAS in New Hampshire
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.

24
health-based violations
110
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-04-01 → 2018-06-30
MCL Health-based Resolved 2018-04-01 → 2018-06-30
MCL Health-based Resolved 2018-04-01 → 2018-06-30
MCL Health-based Resolved 2018-04-01 → 2018-06-30
MCL Health-based Resolved 2015-07-01 → 2015-09-30
MCL Health-based Resolved 2015-07-01 → 2015-09-30

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
Arsenic
18.275 µg/L 183%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 22.5 µg/L
14/26 SYR4 2014–2019
Nitrate
3300 µg/L 33%
of the EPA limit 10000 µg/L
 14/18 SYR4 2014–2019
Copper
931.5 µg/L 72%
of the EPA limit 1300 µg/L
worst single sample: 1020 µg/L
11/12 SYR4 2014–2017
TTHM
2.425 µg/L 3%
of the EPA limit 80 µg/L
worst single sample: 2.5 µg/L
4/4 SYR4 2014–2019
Chloroform
1.48 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
3/4 SYR4 2014–2019
Barium
12.8308 µg/L 0.6%
of the EPA limit 2000 µg/L
worst single sample: 12.8798 µg/L
2/2 SYR4 2014–2017
Bromoform
0.6950 µg/L
No EPA limit set
worst single sample: 0.7000 µg/L
2/4 SYR4 2014–2019
Chromium
6.0836 µg/L 6.1%
of the EPA limit 100 µg/L
worst single sample: 6.33537 µg/L
2/2 SYR4 2014–2017
Dibromochloromethane
0.9900 µg/L
No EPA limit set
worst single sample: 1 µg/L
2/4 SYR4 2014–2019
Lead
2.06 µg/L 14%
of the EPA limit 15 µg/L
worst single sample: 2.1 µg/L
2/10 SYR4 2014–2017
Bromodichloromethane
0.5000 µg/L
No EPA limit set
 1/4 SYR4 2014–2019
Combined Radium (-226 And -228)
2.2 pCi/L 44%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
Gross Alpha, Excl. Radon And U
0.8000 pCi/L 5.3%
of the EPA limit 15 pCi/L
 1/1 SYR4 2015
Lead
0.0580 mg/L 387%
above the EPA limit of 0.0150 mg/L
 1/1 LCR 2006
62 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, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MATTHEW WOODS

Frequently asked questions about Darby Field Commons

Is Darby Field Commons tap water safe to drink?

EPA monitoring detected 14 contaminants in Darby Field Commons'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 Darby Field Commons's water?

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

How many people does Darby Field Commons serve?

Darby Field Commons reports serving 70 people in New Hampshire, per its EPA record.

Has Darby Field Commons had any water quality violations?

The EPA has 110 violations on file for Darby Field Commons, of which 24 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.