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Tap water quality report

Tenney Brook Ii

EPA monitoring tested this supplier for 75 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

75
contaminants tested
12
detected
228
people served
67
health-based violations
New Hampshire rankingsLead in New HampshirePFAS in New Hampshire
Water source
Ground water
Ownership
Private
Counties served
Grafton

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.

67
health-based violations
383
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2003-07-01 → 2003-09-30
MCL Health-based Resolved 2003-07-01 → 2003-09-30
MCL Health-based Resolved 2003-07-01 → 2003-09-30
MCL Health-based Resolved 2003-07-01 → 2003-09-30
MCL Health-based Resolved 2003-07-01 → 2003-09-30
MCL Health-based Resolved 2002-07-01 → 2002-07-31
MCL Health-based Resolved 2002-07-01 → 2002-07-31
MCL Health-based Resolved 2002-07-01 → 2002-07-31
MCL Health-based Resolved 2002-07-01 → 2002-07-31
MCL Health-based Resolved 2001-12-01 → 2001-12-31

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
98.2 µg/L 7.6%
of the EPA limit 1300 µg/L
worst single sample: 129.6 µg/L
11/14 SYR4 2014–2019
Barium
79.51 µg/L 4%
of the EPA limit 2000 µg/L
worst single sample: 79.6 µg/L
4/4 SYR4 2014–2019
Fluoride
1000 µg/L 25%
of the EPA limit 4000 µg/L
 4/4 SYR4 2014–2019
Combined Radium (-226 And -228)
1.6 pCi/L 32%
of the EPA limit 5 pCi/L
 3/3 SYR4 2019
Bromodichloromethane
0.7000 µg/L
No EPA limit set
 2/8 SYR4 2014–2018
Bromoform
0.8900 µg/L
No EPA limit set
worst single sample: 0.9000 µg/L
2/8 SYR4 2014–2018
Combined Uranium
2.95 µg/L 9.8%
of the EPA limit 30 µg/L
worst single sample: 3 µg/L
2/2 SYR4 2019
Dibromochloromethane
0.9950 µg/L
No EPA limit set
worst single sample: 1 µg/L
2/8 SYR4 2014–2018
Lead
1.1 µg/L 7.3%
of the EPA limit 15 µg/L
 1/10 SYR4 2015–2018
TTHM
2.8 µg/L 3.5%
of the EPA limit 80 µg/L
 1/3 SYR4 2014–2017
Total Haloacetic Acids (HAA5)
1 µg/L 1.7%
of the EPA limit 60 µg/L
 1/3 SYR4 2014–2017
Trichloroacetic Acid
1 µg/L
No EPA limit set
 1/3 SYR4 2014–2017
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-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrateNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BRIAN MCKEON

Frequently asked questions about Tenney Brook Ii

Is Tenney Brook Ii tap water safe to drink?

EPA monitoring detected 12 contaminants in Tenney Brook Ii'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 Tenney Brook Ii's water?

EPA monitoring detected Copper, Barium, Fluoride, Combined Radium (-226 And -228), Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Tenney Brook Ii serve?

Tenney Brook Ii reports serving 228 people in New Hampshire, per its EPA record.

Has Tenney Brook Ii had any water quality violations?

The EPA has 383 violations on file for Tenney Brook Ii, of which 67 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.