Is South Norwalk Electric & Water Tap Water Safe? Quality Report

Water source: Surface 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.

health-based violations

215

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Archived	2019-01-01 → 2019-03-31
TT	Health-based	Archived	2019-01-01 → 2019-03-31
TT	Health-based	Archived	2019-01-01 → 2019-03-31
TT	Health-based	Resolved	2006-11-01 → 2006-11-30
TT	Health-based	Resolved	2006-11-01 → 2006-11-30
TT	Health-based	Resolved	2006-11-01 → 2006-11-30
TT	Health-based	Resolved	2006-11-01 → 2006-11-30
MCL	Health-based	Resolved	1991-08-01 → 1991-08-31
MCL	Health-based	Resolved	1991-08-01 → 1991-08-31
MCL	Health-based	Resolved	1991-08-01 → 1991-08-31

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Bromodichloromethane	15.075 µg/L No EPA limit set worst single sample: 17 µg/L	136/136	SYR4	2012–2019
Chloroform	78.175 µg/L No EPA limit set worst single sample: 92.4 µg/L	136/136	SYR4	2012–2019
TTHM	96.195 µg/L 120% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 109 µg/L	128/128	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	40.695 µg/L 68% of the EPA limit 60 µg/L worst single sample: 56.3 µg/L	128/128	SYR4	2012–2019
Trichloroacetic Acid	22.165 µg/L No EPA limit set worst single sample: 36.7 µg/L	128/128	SYR4	2012–2019
Dichloroacetic Acid	19.87 µg/L No EPA limit set worst single sample: 25.4 µg/L	127/128	SYR4	2012–2019
Dibromochloromethane	2.99 µg/L No EPA limit set worst single sample: 11.4 µg/L	123/136	SYR4	2012–2019
Copper	301 µg/L 23% of the EPA limit 1300 µg/L worst single sample: 730 µg/L	99/104	SYR4	2012–2019
Lead	5.6 µg/L 37% of the EPA limit 15 µg/L worst single sample: 8.9 µg/L	61/104	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	53/53	LCR	2026
Monochloroacetic Acid	1.465 µg/L No EPA limit set worst single sample: 1.8 µg/L	48/128	SYR4	2012–2019
Dibromoacetic Acid	3.46 µg/L No EPA limit set worst single sample: 13.7 µg/L	17/128	SYR4	2012–2019
Fluoride	973 µg/L 24% of the EPA limit 4000 µg/L worst single sample: 980 µg/L	15/16	SYR4	2012–2019
Barium	47.45 µg/L 2.4% of the EPA limit 2000 µg/L worst single sample: 48 µg/L	12/16	SYR4	2012–2019
Nitrate	300 µg/L 3% of the EPA limit 10000 µg/L	12/16	SYR4	2012–2019
Nitrate-Nitrite	289 µg/L 2.9% of the EPA limit 10000 µg/L worst single sample: 300 µg/L	12/16	SYR4	2012–2019
Monobromoacetic Acid	0.6000 µg/L No EPA limit set	8/128	SYR4	2012–2019
Bromoform	0.9000 µg/L No EPA limit set	1/136	SYR4	2012–2019
Di(2-ethylhexyl) Phthalate	1.52 µg/L 25% of the EPA limit 6 µg/L	1/6	SYR4	2013–2019

90 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: BURNS, ELISABETH O.
Phone: 203-866-3366
Email: [email protected]

Frequently asked questions about South Norwalk Electric & Water

Is South Norwalk Electric & Water tap water safe to drink?

EPA monitoring detected 19 contaminants in South Norwalk Electric & Water'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 South Norwalk Electric & Water's water?

EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does South Norwalk Electric & Water serve?

South Norwalk Electric & Water reports serving 42,000 people in Connecticut, per its EPA record.

Has South Norwalk Electric & Water had any water quality violations?

The EPA has 215 violations on file for South Norwalk Electric & Water, of which 11 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.