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Tap water quality report

Aquarion-Interlaken

EPA monitoring tested this supplier for 73 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
8
detected
64
people served
14
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.

14
health-based violations
339
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2006-11-01 → 2006-11-30
MCL Health-based Resolved 2006-11-01 → 2006-11-30
MCL Health-based Resolved 2006-11-01 → 2006-11-30
MCL Health-based Resolved 2006-11-01 → 2006-11-30
MCL Health-based Resolved 2006-10-01 → 2006-10-31
MCL Health-based Resolved 2006-10-01 → 2006-10-31
MCL Health-based Resolved 2006-10-01 → 2006-10-31
MCL Health-based Resolved 2003-06-01 → 2003-06-30
MCL Health-based Resolved 2003-06-01 → 2003-06-30
MCL Health-based Resolved 2003-06-01 → 2003-06-30

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 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
Nitrate
2000 µg/L 20%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Copper
240 µg/L 18%
of the EPA limit 1300 µg/L
 11/12 SYR4 2013–2017
Nitrate-Nitrite
2000 µg/L 20%
of the EPA limit 10000 µg/L
 8/8 SYR4 2012–2019
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2023
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 6/12 SYR4 2013–2017
Combined Uranium
2.1 µg/L 7%
of the EPA limit 30 µg/L
 4/4 SYR4 2013–2019
Fluoride
400 µg/L 10%
of the EPA limit 4000 µg/L
 2/2 SYR4 2014–2017
Barium
20 µg/L 1%
of the EPA limit 2000 µg/L
 1/2 SYR4 2014–2017
65 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, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, 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-Interlaken

Is Aquarion-Interlaken tap water safe to drink?

EPA monitoring detected 8 contaminants in Aquarion-Interlaken'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-Interlaken's water?

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

How many people does Aquarion-Interlaken serve?

Aquarion-Interlaken reports serving 64 people in Connecticut, per its EPA record.

Has Aquarion-Interlaken had any water quality violations?

The EPA has 339 violations on file for Aquarion-Interlaken, of which 14 are health-based (a contaminant limit or required treatment was breached) and 2 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.