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Tap water quality report

Aquarion-Butternut

EPA monitoring tested this supplier for 80 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

80
contaminants tested
19
detected
124
people served
24
health-based violations
Connecticut rankingsLead in ConnecticutPFAS in Connecticut
Water source
Ground water
Ownership
Private
Counties served
Fairfield

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.

24
health-based violations
54
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2012-10-01 → 2012-10-31
MCL Health-based Resolved 2012-10-01 → 2012-10-31
MCL Health-based Resolved 2012-10-01 → 2012-10-31
MCL Health-based Resolved 2012-10-01 → 2012-10-31
MCL Health-based Resolved 2012-07-01 → 2012-07-31
MCL Health-based Resolved 2012-07-01 → 2012-07-31
MCL Health-based Resolved 2012-07-01 → 2012-07-31
MCL Health-based Resolved 2012-07-01 → 2012-07-31
MCL Health-based Resolved 2004-10-01 → 2004-10-31
MCL Health-based Resolved 2004-10-01 → 2004-10-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
370 µg/L 28%
of the EPA limit 1300 µg/L
 23/24 SYR4 2012–2018
Lead
192 µg/L 1280%
of the EPA limit, in the worst sample — 15 µg/L
 17/24 SYR4 2012–2018
Nitrate
4966 µg/L 50%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Chloroform
5.1 µg/L
No EPA limit set
 11/11 SYR4 2012–2019
Bromodichloromethane
2 µg/L
No EPA limit set
 10/11 SYR4 2012–2019
Dibromochloromethane
2 µg/L
No EPA limit set
 10/11 SYR4 2012–2019
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2024
Nitrate-Nitrite
4966 µg/L 50%
of the EPA limit 10000 µg/L
 8/8 SYR4 2012–2019
TTHM
7 µg/L 8.8%
of the EPA limit 80 µg/L
 7/7 SYR4 2013–2019
Bromoform
1 µg/L
No EPA limit set
 6/11 SYR4 2012–2019
Dibromoacetic Acid
1 µg/L
No EPA limit set
 4/7 SYR4 2013–2019
Barium
26 µg/L 1.3%
of the EPA limit 2000 µg/L
 3/3 SYR4 2012–2018
Fluoride
50 µg/L 1.3%
of the EPA limit 4000 µg/L
 3/3 SYR4 2012–2018
Combined Uranium
9.2 µg/L 31%
of the EPA limit 30 µg/L
 2/2 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
1 µg/L 1.7%
of the EPA limit 60 µg/L
 2/7 SYR4 2013–2019
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
 1/3 SYR4 2012–2018
Dichloroacetic Acid
1 µg/L
No EPA limit set
 1/7 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
0.3000 pCi/L 2%
of the EPA limit 15 pCi/L
 1/2 SYR4 2012–2019
Trichloroacetic Acid
1 µg/L
No EPA limit set
 1/7 SYR4 2013–2019
61 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 TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic 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
rulrich@aquarionwater.com

Frequently asked questions about Aquarion-Butternut

Is Aquarion-Butternut tap water safe to drink?

EPA monitoring detected 19 contaminants in Aquarion-Butternut'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-Butternut's water?

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

How many people does Aquarion-Butternut serve?

Aquarion-Butternut reports serving 124 people in Connecticut, per its EPA record.

Has Aquarion-Butternut had any water quality violations?

The EPA has 54 violations on file for Aquarion-Butternut, of which 24 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.