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Tap water quality report

Arrowhead By the Lake Association, Inc.

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
288
people served
33
health-based violations
Connecticut rankingsLead in ConnecticutPFAS in Connecticut
Water source
Ground water
Ownership
Private
Counties served
New Haven

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.

33
health-based violations
112
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2016-01-01 → 2016-03-31
MCL Health-based Resolved 2016-01-01 → 2016-03-31
MCL Health-based Resolved 2016-01-01 → 2016-03-31
MCL Health-based Resolved 2015-10-01 → 2015-12-31
MCL Health-based Resolved 2015-10-01 → 2015-12-31
MCL Health-based Resolved 2015-10-01 → 2015-12-31
MCL Health-based Resolved 2015-10-01 → 2015-12-31
MCL Health-based Resolved 2015-10-01 → 2015-12-31
MCL Health-based Resolved 2015-07-01 → 2015-09-30
MCL Health-based Resolved 2015-07-01 → 2015-09-30

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
1231 µg/L 95%
of the EPA limit 1300 µg/L
worst single sample: 4360 µg/L
94/103 SYR4 2013–2019
Lead
242.35 µg/L 1616%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 858 µg/L
44/103 SYR4 2013–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 25/25 LCR 2025
Nitrate
2660 µg/L 27%
of the EPA limit 10000 µg/L
 18/18 SYR4 2012–2019
Nitrate-Nitrite
2399 µg/L 24%
of the EPA limit 10000 µg/L
worst single sample: 2660 µg/L
10/10 SYR4 2012–2019
Antimony, Total
47.54 µg/L 792%
of the EPA limit, at the 95th percentile of samples — 6 µg/L
worst single sample: 50 µg/L
2/37 SYR4 2012–2019
Barium
95.5 µg/L 4.8%
of the EPA limit 2000 µg/L
worst single sample: 100 µg/L
2/3 SYR4 2013–2018
Combined Uranium
2.951 µg/L 9.8%
of the EPA limit 30 µg/L
worst single sample: 2.97 µg/L
2/3 SYR4 2013–2018
Gross Alpha, Excl. Radon And U
3.7545 pCi/L 25%
of the EPA limit 15 pCi/L
worst single sample: 3.76 pCi/L
2/3 SYR4 2013–2018
Arsenic
5 µg/L 50%
of the EPA limit 10 µg/L
 1/3 SYR4 2013–2018
Chromium
5 µg/L 5%
of the EPA limit 100 µg/L
 1/3 SYR4 2013–2018
Combined Radium (-226 And -228)
0.3800 pCi/L 7.6%
of the EPA limit 5 pCi/L
 1/3 SYR4 2013–2018
Fluoride
20 µg/L 0.5%
of the EPA limit 4000 µg/L
 1/3 SYR4 2013–2018
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-DAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
COLLIS, ANDREW
Phone
203-463-3200
Email
[email protected]

Frequently asked questions about Arrowhead By the Lake Association, Inc.

Is Arrowhead By the Lake Association, Inc. tap water safe to drink?

EPA monitoring detected 13 contaminants in Arrowhead By the Lake Association, Inc.'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 Arrowhead By the Lake Association, Inc.'s water?

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

How many people does Arrowhead By the Lake Association, Inc. serve?

Arrowhead By the Lake Association, Inc. reports serving 288 people in Connecticut, per its EPA record.

Has Arrowhead By the Lake Association, Inc. had any water quality violations?

The EPA has 112 violations on file for Arrowhead By the Lake Association, Inc., of which 33 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.