Is Montville Twp Mua Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Morris

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
TT	Health-based	Archived	2025-08-01 → 2025-08-31
TT	Health-based	Archived	2025-08-01 → 2025-08-31
TT	Health-based	Archived	2025-08-01 → 2025-08-31
TT	Health-based	Archived	2024-11-01 → 2024-11-30
TT	Health-based	Archived	2024-11-01 → 2024-11-30
TT	Health-based	Archived	2024-11-01 → 2024-11-30
TT	Health-based	Resolved	2023-07-01 → 2023-07-31
TT	Health-based	Resolved	2023-07-01 → 2023-07-31
RPT	Monitoring	Resolved	2021-09-17
RPT	Monitoring	Resolved	2021-09-17

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
PFOA	0.0081 µg/L	11/12	2024
PFHXS	0.0057 µg/L	3/12	2024
PFOS	0.0093 µg/L	3/12	2024
Pfpea	0.0061 µg/L	3/12	2024
PFBS	0.0037 µg/L	2/12	2024
Pfhxa	0.0046 µg/L	2/12	2024
Pfba	0.0052 µg/L	1/12	2024

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	35.13 µg/L No EPA limit set worst single sample: 40.8 µg/L	130/131	SYR4	2012–2019
Bromodichloromethane	13.68 µg/L No EPA limit set worst single sample: 17.5 µg/L	129/131	SYR4	2012–2019
TTHM	52.78 µg/L 66% of the EPA limit 80 µg/L worst single sample: 62 µg/L	127/127	SYR4	2012–2019
Dibromochloromethane	7.5045 µg/L No EPA limit set worst single sample: 8.4 µg/L	124/131	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	21.79 µg/L 36% of the EPA limit 60 µg/L worst single sample: 53.1 µg/L	103/127	SYR4	2012–2019
Bromoform	1.78 µg/L No EPA limit set worst single sample: 2.2 µg/L	97/131	SYR4	2012–2019
Dichloroacetic Acid	10.73 µg/L No EPA limit set worst single sample: 20.4 µg/L	95/127	SYR4	2012–2019
Trichloroacetic Acid	13.14 µg/L No EPA limit set worst single sample: 21.8 µg/L	95/127	SYR4	2012–2019
Copper	321 µg/L 25% of the EPA limit 1300 µg/L worst single sample: 625 µg/L	67/69	SYR4	2014–2017
Lead	7.8 µg/L 52% of the EPA limit 15 µg/L worst single sample: 20.5 µg/L	61/65	SYR4	2014–2017
Dibromoacetic Acid	4.6435 µg/L No EPA limit set worst single sample: 5.54 µg/L	48/127	SYR4	2012–2019
Monobromoacetic Acid	3.0425 µg/L No EPA limit set worst single sample: 6.6 µg/L	26/127	SYR4	2012–2019
Nitrate	900 µg/L 9% of the EPA limit 10000 µg/L	16/24	SYR4	2014–2019
Lead	0.0047 mg/L 31% of the EPA limit 0.0150 mg/L	15/15	LCR	2023
Monochloroacetic Acid	9.47 µg/L No EPA limit set worst single sample: 10.1 µg/L	13/127	SYR4	2012–2019
Arsenic	3.512 µg/L 35% of the EPA limit 10 µg/L worst single sample: 3.56 µg/L	4/4	SYR4	2014–2017
Barium	244.6 µg/L 12% of the EPA limit 2000 µg/L worst single sample: 259 µg/L	4/4	SYR4	2014–2017
Nitrate-Nitrite	785 µg/L 7.9% of the EPA limit 10000 µg/L worst single sample: 800 µg/L	4/4	SYR4	2012–2013
Chromium	6.744 µg/L 6.7% of the EPA limit 100 µg/L worst single sample: 6.8 µg/L	3/4	SYR4	2014–2017
Beryllium, Total	0.0657 µg/L 1.6% of the EPA limit 4 µg/L worst single sample: 0.0670 µg/L	2/4	SYR4	2014–2017
Combined Uranium	1.21 µg/L 4% of the EPA limit 30 µg/L	1/1	SYR4	2017
Selenium	1.48 µg/L 3% of the EPA limit 50 µg/L	1/4	SYR4	2014–2017

53 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalBenzeneChlorobenzeneCyanideCadmiumCarbon TetrachlorideCombined Radium (-226 And -228)DichloromethaneEthylene DibromideEthylbenzeneFluorideHfpo-DaMercuryNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: KARIM, ZEHRA
Phone: 973-331-3334

Frequently asked questions about Montville Twp Mua

Is Montville Twp Mua tap water safe to drink?

EPA monitoring detected 29 contaminants in Montville Twp Mua'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 Montville Twp Mua's water?

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

How many people does Montville Twp Mua serve?

Montville Twp Mua reports serving 22,000 people in New Jersey, per its EPA record.

Has Montville Twp Mua had any water quality violations?

The EPA has 80 violations on file for Montville Twp Mua, 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.