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Tap water quality report

Hawthorne Terrace Assoc

EPA monitoring tested this supplier for 72 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

72
contaminants tested
10
detected
156
people served
8
health-based violations
Connecticut rankingsLead in ConnecticutPFAS in Connecticut
Water source
Ground water
Ownership
Local government
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.

8
health-based violations
168
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2015-01-01
TT Health-based Resolved 2015-01-01
TT Health-based Resolved 2015-01-01
TT Health-based Resolved 2015-01-01
TT Health-based Resolved 2012-01-01
TT Health-based Resolved 2012-01-01
TT Health-based Resolved 2012-01-01
TT Health-based Resolved 2012-01-01
MR Monitoring Resolved 2025-04-01
MR Monitoring Resolved 2025-04-01

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
2300 µg/L 177%
of the EPA limit, in the worst sample — 1300 µg/L
 172/172 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 63/63 LCR 2025
Lead
26 µg/L 173%
of the EPA limit, in the worst sample — 15 µg/L
 48/172 SYR4 2012–2019
Nitrate
1400 µg/L 14%
of the EPA limit 10000 µg/L
 22/22 SYR4 2012–2019
Nitrate-Nitrite
1400 µg/L 14%
of the EPA limit 10000 µg/L
 11/11 SYR4 2012–2019
Barium
83 µg/L 4.2%
of the EPA limit 2000 µg/L
 7/7 SYR4 2013–2019
Fluoride
60 µg/L 1.5%
of the EPA limit 4000 µg/L
 3/7 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
3.12 pCi/L 21%
of the EPA limit 15 pCi/L
 3/6 SYR4 2013–2014
Chromium
4.8 µg/L 4.8%
of the EPA limit 100 µg/L
 1/7 SYR4 2013–2019
Combined Radium (-226 And -228)
1.47 pCi/L 29%
of the EPA limit 5 pCi/L
 1/6 SYR4 2013–2014
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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DAY, DAVID M.
Phone
203-797-4539
Email
d.day@danbury-ct.gov

Frequently asked questions about Hawthorne Terrace Assoc

Is Hawthorne Terrace Assoc tap water safe to drink?

EPA monitoring detected 10 contaminants in Hawthorne Terrace Assoc'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 Hawthorne Terrace Assoc'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 Hawthorne Terrace Assoc serve?

Hawthorne Terrace Assoc reports serving 156 people in Connecticut, per its EPA record.

Has Hawthorne Terrace Assoc had any water quality violations?

The EPA has 168 violations on file for Hawthorne Terrace Assoc, of which 8 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.