Is Scwa, Montville Division (Mtv) 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	1997-06-01 → 1997-06-30
MCL	Health-based	Resolved	1997-06-01 → 1997-06-30
MCL	Health-based	Resolved	1997-06-01 → 1997-06-30
MCL	Health-based	Resolved	1997-06-01 → 1997-06-30
MCL	Health-based	Resolved	1994-01-01 → 1994-01-31
MCL	Health-based	Resolved	1994-01-01 → 1994-01-31
MCL	Health-based	Resolved	1994-01-01 → 1994-01-31
MCL	Health-based	Resolved	1994-01-01 → 1994-01-31
MCL	Health-based	Resolved	1994-01-01 → 1994-01-31
MCL	Health-based	Resolved	1994-01-01 → 1994-01-31

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	949.95 µg/L 73% of the EPA limit 1300 µg/L worst single sample: 4180 µg/L	168/173	SYR4	2012–2019
Lead	9.65 µg/L 64% of the EPA limit 15 µg/L worst single sample: 21 µg/L	88/173	SYR4	2012–2019
Lead	0.0025 mg/L 17% of the EPA limit 0.0150 mg/L	23/23	LCR	2025
Nitrate	1130 µg/L 11% of the EPA limit 10000 µg/L	18/18	SYR4	2012–2019
Bromodichloromethane	5.15 µg/L No EPA limit set worst single sample: 5.7 µg/L	11/11	SYR4	2012–2019
Chloroform	4.8 µg/L No EPA limit set worst single sample: 6 µg/L	11/11	SYR4	2012–2019
Dibromochloromethane	4.65 µg/L No EPA limit set worst single sample: 4.9 µg/L	11/11	SYR4	2012–2019
Nitrate-Nitrite	1114 µg/L 11% of the EPA limit 10000 µg/L worst single sample: 1130 µg/L	9/9	SYR4	2012–2019
TTHM	15.9835 µg/L 20% of the EPA limit 80 µg/L worst single sample: 17.59 µg/L	8/8	SYR4	2012–2019
Bromoform	1.425 µg/L No EPA limit set worst single sample: 1.5 µg/L	6/11	SYR4	2012–2019
Dibromoacetic Acid	2.4 µg/L No EPA limit set worst single sample: 2.5 µg/L	6/8	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	4.075 µg/L 6.8% of the EPA limit 60 µg/L worst single sample: 4.1 µg/L	6/8	SYR4	2012–2019
Combined Uranium	2.735 µg/L 9.1% of the EPA limit 30 µg/L worst single sample: 2.9 µg/L	4/4	SYR4	2012–2019
Dichloroacetic Acid	2.055 µg/L No EPA limit set worst single sample: 2.1 µg/L	4/8	SYR4	2012–2019
Barium	19.8 µg/L 1% of the EPA limit 2000 µg/L worst single sample: 20 µg/L	3/3	SYR4	2012–2018
Beryllium, Total	0.2000 µg/L 5% of the EPA limit 4 µg/L	1/3	SYR4	2012–2018
Gross Alpha, Excl. Radon And U	2.54 pCi/L 17% of the EPA limit 15 pCi/L	1/4	SYR4	2012–2019

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)PyreneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic 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, Montville Division (Mtv)

Is Scwa, Montville Division (Mtv) tap water safe to drink?

EPA monitoring detected 17 contaminants in Scwa, Montville Division (Mtv)'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, Montville Division (Mtv)'s water?

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

How many people does Scwa, Montville Division (Mtv) serve?

Scwa, Montville Division (Mtv) reports serving 2,570 people in Connecticut, per its EPA record.

Has Scwa, Montville Division (Mtv) had any water quality violations?

The EPA has 28 violations on file for Scwa, Montville Division (Mtv), of which 18 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.