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Tap water quality report

Aquarion-Dean Heights

EPA monitoring tested this supplier for 80 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

80
contaminants tested
18
detected
162
people served
27
health-based violations
Connecticut rankingsLead in ConnecticutPFAS in Connecticut
Water source
Ground water
Ownership
Private
Counties served
Litchfield

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.

27
health-based violations
163
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2002-11-01 → 2002-11-30
MCL Health-based Resolved 2002-11-01 → 2002-11-30
MCL Health-based Resolved 2002-11-01 → 2002-11-30
MCL Health-based Resolved 2002-11-01 → 2002-11-30
MCL Health-based Resolved 2002-10-01 → 2002-10-31
MCL Health-based Resolved 2002-10-01 → 2002-10-31
MCL Health-based Resolved 2002-10-01 → 2002-10-31
MCL Health-based Resolved 2002-10-01 → 2002-10-31
MCL Health-based Resolved 2002-08-01 → 2002-08-31
MCL Health-based Resolved 2002-08-01 → 2002-08-31

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
548.5 µg/L 42%
of the EPA limit 1300 µg/L
worst single sample: 600 µg/L
62/63 SYR4 2012–2019
Lead
39.3 µg/L 262%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 86 µg/L
32/63 SYR4 2012–2019
Nitrate
3310 µg/L 33%
of the EPA limit 10000 µg/L
 18/18 SYR4 2012–2019
Lead
0.0011 mg/L 7.3%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2025
Bromodichloromethane
3 µg/L
No EPA limit set
 16/17 SYR4 2012–2019
Dibromochloromethane
3.225 µg/L
No EPA limit set
worst single sample: 3.3 µg/L
16/17 SYR4 2012–2019
Bromoform
1.22 µg/L
No EPA limit set
worst single sample: 1.4 µg/L
13/17 SYR4 2012–2019
Chloroform
2 µg/L
No EPA limit set
 13/17 SYR4 2012–2019
Nitrate-Nitrite
3260.4 µg/L 33%
of the EPA limit 10000 µg/L
worst single sample: 3310 µg/L
9/9 SYR4 2012–2019
TTHM
8.65 µg/L 11%
of the EPA limit 80 µg/L
worst single sample: 9 µg/L
8/8 SYR4 2012–2019
Dibromoacetic Acid
1 µg/L
No EPA limit set
 7/8 SYR4 2012–2019
Dichloroacetic Acid
1.7 µg/L
No EPA limit set
worst single sample: 2 µg/L
7/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
4 µg/L 6.7%
of the EPA limit 60 µg/L
 7/8 SYR4 2012–2019
Barium
165.3 µg/L 8.3%
of the EPA limit 2000 µg/L
worst single sample: 167 µg/L
3/3 SYR4 2012–2018
Fluoride
124 µg/L 3.1%
of the EPA limit 4000 µg/L
worst single sample: 130 µg/L
3/3 SYR4 2012–2018
Combined Radium (-226 And -228)
1.7 pCi/L 34%
of the EPA limit 5 pCi/L
 1/3 SYR4 2013–2019
Monochloroacetic Acid
2 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
Trichloroacetic Acid
1 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ULRICH, ROBERT J.
Phone
203-926-4320
Email
[email protected]

Frequently asked questions about Aquarion-Dean Heights

Is Aquarion-Dean Heights tap water safe to drink?

EPA monitoring detected 18 contaminants in Aquarion-Dean Heights'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 Aquarion-Dean Heights's water?

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

How many people does Aquarion-Dean Heights serve?

Aquarion-Dean Heights reports serving 162 people in Connecticut, per its EPA record.

Has Aquarion-Dean Heights had any water quality violations?

The EPA has 163 violations on file for Aquarion-Dean Heights, of which 27 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.