Is Scwa, Mohegan Division Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: New London

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
MCL	Health-based	Resolved	1992-05-01 → 1992-05-31
MCL	Health-based	Resolved	1992-05-01 → 1992-05-31
MCL	Health-based	Resolved	1992-05-01 → 1992-05-31
MCL	Health-based	Resolved	1992-05-01 → 1992-05-31
MCL	Health-based	Resolved	1992-05-01 → 1992-05-31
MCL	Health-based	Resolved	1992-05-01 → 1992-05-31
MCL	Health-based	Resolved	1992-05-01 → 1992-05-31
MCL	Health-based	Resolved	1992-05-01 → 1992-05-31
MCL	Health-based	Resolved	1992-05-01 → 1992-05-31
MCL	Health-based	Resolved	1992-05-01 → 1992-05-31

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
Copper	466.7 µg/L 36% of the EPA limit 1300 µg/L worst single sample: 527 µg/L	19/19	SYR4	2012–2018
Nitrate	2860 µg/L 29% of the EPA limit 10000 µg/L	18/18	SYR4	2012–2019
Lead	7 µg/L 47% of the EPA limit 15 µg/L worst single sample: 9 µg/L	11/19	SYR4	2012–2018
Nitrate-Nitrite	2724 µg/L 27% of the EPA limit 10000 µg/L worst single sample: 2860 µg/L	9/9	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	8/8	LCR	2024
Dibromochloromethane	2.51 µg/L No EPA limit set worst single sample: 2.6 µg/L	7/12	SYR4	2012–2019
Bromoform	2.2 µg/L No EPA limit set worst single sample: 2.3 µg/L	6/12	SYR4	2012–2019
TTHM	13.06 µg/L 16% of the EPA limit 80 µg/L worst single sample: 13.4 µg/L	5/8	SYR4	2012–2019
Bromodichloromethane	1.555 µg/L No EPA limit set worst single sample: 1.6 µg/L	4/12	SYR4	2012–2019
Barium	10.9 µg/L 0.5% of the EPA limit 2000 µg/L worst single sample: 11 µg/L	3/3	SYR4	2012–2018
Chloroform	7.67 µg/L No EPA limit set worst single sample: 7.9 µg/L	3/12	SYR4	2012–2019
Chromium	2 µg/L 2% of the EPA limit 100 µg/L	3/3	SYR4	2012–2018
Combined Uranium	1.59 µg/L 5.3% of the EPA limit 30 µg/L worst single sample: 1.6 µg/L	3/3	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	4.285 µg/L 7.1% of the EPA limit 60 µg/L worst single sample: 4.4 µg/L	2/8	SYR4	2012–2019
Beryllium, Total	0.1000 µg/L 2.5% of the EPA limit 4 µg/L	1/3	SYR4	2012–2018
Dichloroacetic Acid	4.4 µg/L No EPA limit set	1/8	SYR4	2012–2019
Fluoride	100 µg/L 2.5% of the EPA limit 4000 µg/L	1/3	SYR4	2012–2018
Monochloroacetic Acid	2.1 µg/L No EPA limit set	1/8	SYR4	2012–2019

61 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)PyreneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: CANSLER, JOSEPH
Phone: 860-464-0232
Email: [email protected]

Frequently asked questions about Scwa, Mohegan Division

Is Scwa, Mohegan Division tap water safe to drink?

EPA monitoring detected 18 contaminants in Scwa, Mohegan Division'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 Scwa, Mohegan Division's water?

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

How many people does Scwa, Mohegan Division serve?

Scwa, Mohegan Division reports serving 1,428 people in Connecticut, per its EPA record.

Has Scwa, Mohegan Division had any water quality violations?

The EPA has 17 violations on file for Scwa, Mohegan Division, of which 13 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.