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Tap water quality report

Crotched Mountain School

EPA monitoring tested this supplier for 75 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

75
contaminants tested
17
detected
300
people served
37
health-based violations
New Hampshire rankingsLead in New HampshirePFAS in New Hampshire
Water source
Ground water
Ownership
Private
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.

37
health-based violations
229
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2024-10-01 → 2024-12-31
MCL Health-based Resolved 2024-10-01 → 2024-12-31
MCL Health-based Resolved 2024-10-01 → 2024-12-31
MCL Health-based Resolved 2024-10-01 → 2024-12-31
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-07-01 → 2024-09-30

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
Copper
280 µg/L 22%
of the EPA limit 1300 µg/L
worst single sample: 890 µg/L
45/46 SYR4 2014–2019
Lead
99.6 µg/L 664%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 290 µg/L
18/39 SYR4 2015–2018
Chloroform
9.835 µg/L
No EPA limit set
worst single sample: 16 µg/L
10/33 SYR4 2014–2019
Bromodichloromethane
1.43 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
8/33 SYR4 2014–2019
Dibromochloromethane
0.8845 µg/L
No EPA limit set
worst single sample: 0.9300 µg/L
8/33 SYR4 2014–2019
TTHM
4.2255 µg/L 5.3%
of the EPA limit 80 µg/L
worst single sample: 4.6 µg/L
8/12 SYR4 2014–2019
Barium
80.25 µg/L 4%
of the EPA limit 2000 µg/L
worst single sample: 87 µg/L
6/7 SYR4 2014–2019
Combined Radium (-226 And -228)
1.425 pCi/L 29%
of the EPA limit 5 pCi/L
worst single sample: 1.5 pCi/L
6/6 SYR4 2015–2017
Gross Alpha, Excl. Radon And U
2.52 pCi/L 17%
of the EPA limit 15 pCi/L
worst single sample: 2.9 pCi/L
5/6 SYR4 2015–2017
Arsenic
1.85 µg/L 19%
of the EPA limit 10 µg/L
worst single sample: 2 µg/L
4/7 SYR4 2014–2019
Fluoride
250 µg/L 6.3%
of the EPA limit 4000 µg/L
 4/7 SYR4 2014–2019
Dichloroacetic Acid
1.865 µg/L
No EPA limit set
worst single sample: 1.9 µg/L
2/12 SYR4 2014–2019
Toluene
2.45 µg/L 0.2%
of the EPA limit 1000 µg/L
worst single sample: 2.5 µg/L
2/25 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
2.815 µg/L 4.7%
of the EPA limit 60 µg/L
worst single sample: 2.9 µg/L
2/12 SYR4 2014–2019
Chromium
33 µg/L 33%
of the EPA limit 100 µg/L
 1/7 SYR4 2014–2019
Lead
0.0660 mg/L 440%
above the EPA limit of 0.0150 mg/L
 1/1 LCR 2017
Trichloroacetic Acid
1 µg/L
No EPA limit set
 1/12 SYR4 2014–2019
58 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 UraniumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrateNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PATTI LECCESE

Frequently asked questions about Crotched Mountain School

Is Crotched Mountain School tap water safe to drink?

EPA monitoring detected 17 contaminants in Crotched Mountain School'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 Crotched Mountain School's water?

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

How many people does Crotched Mountain School serve?

Crotched Mountain School reports serving 300 people in New Hampshire, per its EPA record.

Has Crotched Mountain School had any water quality violations?

The EPA has 229 violations on file for Crotched Mountain School, of which 37 are health-based (a contaminant limit or required treatment was breached) and 1 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.