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Tap water quality report

Dorset Hollow

EPA monitoring tested this supplier for 45 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

45
contaminants tested
14
detected
93
people served
0
health-based violations
New York rankingsLead in New YorkPFAS in New York
Water source
Ground water
Ownership
Private
Counties served
Putnam

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.

0
health-based violations
3
violations on file
3
still open
ViolationTypeStatusPeriod
MR Monitoring Addressed 2007-10-01
MR Monitoring Addressed 2007-10-01
MR Monitoring Addressed 2007-10-01

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
1510 µg/L 15%
of the EPA limit 10000 µg/L
 10/10 SYR4 2012–2014
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2025
Bromodichloromethane
2.64 µg/L
No EPA limit set
worst single sample: 2.7 µg/L
3/3 SYR4 2012–2015
Chloroform
3 µg/L
No EPA limit set
worst single sample: 3.1 µg/L
3/3 SYR4 2012–2015
Dibromochloromethane
2.37 µg/L
No EPA limit set
worst single sample: 2.4 µg/L
3/3 SYR4 2012–2015
TTHM
8.62 µg/L 11%
of the EPA limit 80 µg/L
worst single sample: 8.8 µg/L
3/3 SYR4 2012–2015
Bromoform
0.7155 µg/L
No EPA limit set
worst single sample: 0.7200 µg/L
2/3 SYR4 2012–2015
Combined Radium (-226 And -228)
1.595 pCi/L 32%
of the EPA limit 5 pCi/L
worst single sample: 1.6 pCi/L
2/2 SYR4 2014
Dichloroacetic Acid
2.645 µg/L
No EPA limit set
worst single sample: 2.7 µg/L
2/3 SYR4 2012–2015
Total Haloacetic Acids (HAA5)
5.305 µg/L 8.8%
of the EPA limit 60 µg/L
worst single sample: 5.5 µg/L
2/3 SYR4 2012–2015
Barium
30 µg/L 1.5%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Benzene
1.8 µg/L 36%
of the EPA limit 5 µg/L
 1/6 SYR4 2012–2014
Dibromoacetic Acid
1.2 µg/L
No EPA limit set
 1/3 SYR4 2012–2015
Trichloroacetic Acid
1.6 µg/L
No EPA limit set
 1/3 SYR4 2012–2015
31 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylbenzeneFluorideMercuryMonobromoacetic AcidMonochloroacetic AcidSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PATTERSON TOWN SUPERVISOR
Phone
845-878-6500

Frequently asked questions about Dorset Hollow

Is Dorset Hollow tap water safe to drink?

EPA monitoring detected 14 contaminants in Dorset Hollow'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 Dorset Hollow's water?

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

How many people does Dorset Hollow serve?

Dorset Hollow reports serving 93 people in New York, per its EPA record.

Has Dorset Hollow had any water quality violations?

The EPA has 3 violations on file for Dorset Hollow, of which 0 are health-based (a contaminant limit or required treatment was breached) and 3 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.