Is Metropolitan District Commission Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MR	Monitoring	Resolved	2025-06-01 → 2025-06-30
MR	Monitoring	Resolved	2025-06-01 → 2025-06-30
MR	Monitoring	Resolved	2025-06-01 → 2025-06-30
MR	Monitoring	Resolved	2025-06-01 → 2025-06-30
MR	Monitoring	Resolved	2020-12-30
Other	Monitoring	Resolved	2010-07-01
Other	Monitoring	Resolved	2010-07-01

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 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
Chloroform	64.475 µg/L No EPA limit set worst single sample: 150 µg/L	416/416	SYR4	2012–2019
Bromodichloromethane	6.6695 µg/L No EPA limit set worst single sample: 12.3 µg/L	402/416	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	52.705 µg/L 88% of the EPA limit 60 µg/L worst single sample: 76.21 µg/L	380/380	SYR4	2012–2019
Trichloroacetic Acid	36.0718 µg/L No EPA limit set worst single sample: 58.366 µg/L	379/380	SYR4	2012–2019
TTHM	71.5525 µg/L 89% of the EPA limit 80 µg/L worst single sample: 160 µg/L	370/370	SYR4	2012–2019
Dichloroacetic Acid	17.34 µg/L No EPA limit set worst single sample: 26.8 µg/L	324/380	SYR4	2012–2019
Copper	183.1 µg/L 14% of the EPA limit 1300 µg/L worst single sample: 1117 µg/L	140/190	SYR4	2012–2019
Lead	13.35 µg/L 89% of the EPA limit 15 µg/L worst single sample: 181 µg/L	111/190	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	100/100	LCR	2025
Nitrate	219 µg/L 2.2% of the EPA limit 10000 µg/L worst single sample: 243 µg/L	54/110	SYR4	2012–2019
Fluoride	1029 µg/L 26% of the EPA limit 4000 µg/L worst single sample: 1060 µg/L	52/56	SYR4	2012–2019
Dibromochloromethane	0.7503 µg/L No EPA limit set worst single sample: 0.9210 µg/L	43/416	SYR4	2012–2019
Monobromoacetic Acid	42.1251 µg/L No EPA limit set worst single sample: 63.179 µg/L	43/380	SYR4	2012–2019
Barium	10.535 µg/L 0.5% of the EPA limit 2000 µg/L worst single sample: 20 µg/L	42/56	SYR4	2012–2019
Nitrate-Nitrite	198.3 µg/L 2% of the EPA limit 10000 µg/L worst single sample: 243 µg/L	27/71	SYR4	2012–2019
Monochloroacetic Acid	2.07175 µg/L No EPA limit set worst single sample: 2.08 µg/L	12/380	SYR4	2012–2019
Combined Radium (-226 And -228)	1.4465 pCi/L 29% of the EPA limit 5 pCi/L worst single sample: 1.476 pCi/L	3/6	SYR4	2013–2018
Beryllium, Total	0.6327 µg/L 16% of the EPA limit 4 µg/L worst single sample: 0.6340 µg/L	2/24	SYR4	2012–2019
Mercury	0.2000 µg/L 10% of the EPA limit 2 µg/L	1/57	SYR4	2012–2019

94 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: NEGRELLI, SUSAN
Phone: 860-278-7850
Email: [email protected]

Frequently asked questions about Metropolitan District Commission

Is Metropolitan District Commission tap water safe to drink?

EPA monitoring detected 19 contaminants in Metropolitan District Commission'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 Metropolitan District Commission's water?

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

How many people does Metropolitan District Commission serve?

Metropolitan District Commission reports serving 390,887 people in Connecticut, per its EPA record.

Has Metropolitan District Commission had any water quality violations?

The EPA has 7 violations on file for Metropolitan District Commission, of which 0 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.