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Tap water quality report

Black River Overlook

EPA monitoring tested this supplier for 73 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
13
detected
66
people served
18
health-based violations
New Hampshire rankingsLead in New HampshirePFAS in New Hampshire
Water source
Ground water
Ownership
Private
Counties served
Windsor

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.

18
health-based violations
276
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2007-10-01 → 2007-10-31
MCL Health-based Resolved 2007-10-01 → 2007-10-31
MCL Health-based Resolved 2007-10-01 → 2007-10-31
MCL Health-based Resolved 2007-10-01 → 2007-10-31
MCL Health-based Resolved 2007-10-01 → 2007-10-31
MCL Health-based Resolved 2007-10-01 → 2007-10-31
MCL Health-based Resolved 2007-09-01 → 2007-09-30
MCL Health-based Resolved 2007-09-01 → 2007-09-30
MCL Health-based Resolved 2007-09-01 → 2007-09-30
MCL Health-based Resolved 2007-09-01 → 2007-09-30

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
380 µg/L 29%
of the EPA limit 1300 µg/L
worst single sample: 870 µg/L
24/25 SYR4 2013–2018
Bromodichloromethane
6.93 µg/L
No EPA limit set
worst single sample: 8.1 µg/L
14/15 SYR4 2012–2019
Chloroform
6.08 µg/L
No EPA limit set
worst single sample: 6.6 µg/L
14/15 SYR4 2012–2019
Dibromochloromethane
5.96 µg/L
No EPA limit set
worst single sample: 7 µg/L
14/15 SYR4 2012–2019
Lead
0.0109 mg/L 73%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Bromoform
2.54 µg/L
No EPA limit set
worst single sample: 2.9 µg/L
13/15 SYR4 2012–2019
TTHM
21.595 µg/L 27%
of the EPA limit 80 µg/L
worst single sample: 23.8 µg/L
8/8 SYR4 2012–2017
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 6/25 SYR4 2013–2018
Nitrate
670 µg/L 6.7%
of the EPA limit 10000 µg/L
 2/18 SYR4 2012–2019
Combined Radium (-226 And -228)
0.2690 pCi/L 5.4%
of the EPA limit 5 pCi/L
 1/2 SYR4 2014–2017
Dibromoacetic Acid
1.5 µg/L
No EPA limit set
 1/8 SYR4 2012–2017
Dichloroacetic Acid
1.1 µg/L
No EPA limit set
 1/8 SYR4 2012–2017
Total Haloacetic Acids (HAA5)
2.6 µg/L 4.3%
of the EPA limit 60 µg/L
 1/8 SYR4 2012–2017
60 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneFluorideHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
STEWART, RYAN
Phone
603-641-2163
Email
[email protected]

Frequently asked questions about Black River Overlook

Is Black River Overlook tap water safe to drink?

EPA monitoring detected 13 contaminants in Black River Overlook'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 Black River Overlook's water?

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

How many people does Black River Overlook serve?

Black River Overlook reports serving 66 people in New Hampshire, per its EPA record.

Has Black River Overlook had any water quality violations?

The EPA has 276 violations on file for Black River Overlook, of which 18 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.