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Tap water quality report

Chelsea Common Condominium Association

EPA monitoring tested this supplier for 74 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

74
contaminants tested
9
detected
126
people served
1
health-based violations
Connecticut rankingsLead in ConnecticutPFAS in Connecticut
Water source
Ground water
Ownership
Private
Counties served
Hartford

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.

1
health-based violations
28
violations on file
5
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2024-10-17
MR Monitoring Unaddressed 2025-10-01
MR Monitoring Unaddressed 2025-10-01
MR Monitoring Unaddressed 2025-10-01
RPT Monitoring Unaddressed 2024-10-17
Other Monitoring Resolved 2016-07-01
MR Monitoring Resolved 2011-01-01 → 2013-12-31
MR Monitoring Resolved 2011-01-01 → 2013-12-31
MR Monitoring Resolved 2011-01-01 → 2013-12-31
MR Monitoring Resolved 2011-01-01 → 2013-12-31

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
Nitrate
4503.5 µg/L 45%
of the EPA limit 10000 µg/L
worst single sample: 4520 µg/L
32/34 SYR4 2012–2019
Lead
0.0026 mg/L 17%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2026
Nitrate-Nitrite
4497.5 µg/L 45%
of the EPA limit 10000 µg/L
worst single sample: 4520 µg/L
16/17 SYR4 2012–2019
Copper
111.1 µg/L 8.5%
of the EPA limit 1300 µg/L
worst single sample: 116 µg/L
15/15 SYR4 2012–2018
Lead
5.195 µg/L 35%
of the EPA limit 15 µg/L
worst single sample: 6 µg/L
8/15 SYR4 2012–2018
Barium
207.66 µg/L 10%
of the EPA limit 2000 µg/L
worst single sample: 210 µg/L
3/3 SYR4 2012–2018
Fluoride
402.7 µg/L 10%
of the EPA limit 4000 µg/L
worst single sample: 403 µg/L
3/3 SYR4 2012–2018
Combined Radium (-226 And -228)
3.46 pCi/L 69%
of the EPA limit 5 pCi/L
 1/3 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
1.92 pCi/L 13%
of the EPA limit 15 pCi/L
 1/3 SYR4 2013–2019
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 UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BRENNAN, MASON
Phone
860-815-2337
Email
[email protected]

Frequently asked questions about Chelsea Common Condominium Association

Is Chelsea Common Condominium Association tap water safe to drink?

EPA monitoring detected 9 contaminants in Chelsea Common Condominium Association'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 Chelsea Common Condominium Association's water?

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

How many people does Chelsea Common Condominium Association serve?

Chelsea Common Condominium Association reports serving 126 people in Connecticut, per its EPA record.

Has Chelsea Common Condominium Association had any water quality violations?

The EPA has 28 violations on file for Chelsea Common Condominium Association, of which 1 is health-based (a contaminant limit or required treatment was breached) and 5 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.