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Matawan Borough Water De

EPA monitoring tested this supplier for 81 contaminants and detected 23. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
23
detected
9,084
people served
30
health-based violations
New Jersey rankingsLead in New JerseyPFAS in New Jersey
Water source
SWP
Ownership
Local government
Counties served
Middlesex, Monmouth

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.

30
health-based violations
224
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2022-07-01 → 2022-12-31
TT Health-based Resolved 2022-07-01 → 2022-12-31
TT Health-based Resolved 2022-07-01 → 2022-12-31
TT Health-based Resolved 2022-07-01 → 2022-12-31
MCL Health-based Resolved 2012-01-01 → 2012-03-31
MCL Health-based Resolved 2012-01-01 → 2012-03-31
MCL Health-based Resolved 2012-01-01 → 2012-03-31
MCL Health-based Resolved 2012-01-01 → 2012-03-31
MCL Health-based Resolved 2011-10-01 → 2011-12-31
MCL Health-based Resolved 2011-10-01 → 2011-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0046 µg/L 5/6 2024
PFOA 0.0074 µg/L 4/6 2024
Pfpea 0.0041 µg/L 2/6 2024
Pfba 0.0650 µg/L 1/6 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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
23.15 µg/L
No EPA limit set
worst single sample: 24.2 µg/L
71/71 SYR4 2012–2019
Chloroform
74.53 µg/L
No EPA limit set
worst single sample: 102.8 µg/L
71/71 SYR4 2012–2019
Dibromochloromethane
8.035 µg/L
No EPA limit set
worst single sample: 11.3 µg/L
71/71 SYR4 2012–2019
TTHM
96.665 µg/L 121%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 131.7 µg/L
71/71 SYR4 2012–2019
Dichloroacetic Acid
32.39 µg/L
No EPA limit set
worst single sample: 52.4 µg/L
63/64 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
77.12 µg/L 129%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 104.4 µg/L
63/64 SYR4 2012–2019
Trichloroacetic Acid
37.125 µg/L
No EPA limit set
worst single sample: 60 µg/L
60/64 SYR4 2012–2019
Monochloroacetic Acid
14.36 µg/L
No EPA limit set
worst single sample: 17.8 µg/L
57/64 SYR4 2012–2019
Copper
100 µg/L 7.7%
of the EPA limit 1300 µg/L
worst single sample: 200 µg/L
48/76 SYR4 2012–2018
Monobromoacetic Acid
4.68 µg/L
No EPA limit set
worst single sample: 6.8 µg/L
41/64 SYR4 2012–2019
Dibromoacetic Acid
3.13 µg/L
No EPA limit set
worst single sample: 3.69 µg/L
39/64 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 21/21 LCR 2025
Bromoform
2.06 µg/L
No EPA limit set
worst single sample: 2.4 µg/L
9/71 SYR4 2012–2019
Combined Radium (-226 And -228)
1.476 pCi/L 30%
of the EPA limit 5 pCi/L
worst single sample: 1.5 pCi/L
2/2 SYR4 2012–2018
Nitrate
300 µg/L 3%
of the EPA limit 10000 µg/L
 2/14 SYR4 2012–2019
Asbestos
15 MFL 214%
of the EPA limit, at the 95th percentile of samples — 7 MFL
 1/3 SYR4 2013
Barium
90 µg/L 4.5%
of the EPA limit 2000 µg/L
 1/4 SYR4 2012–2018
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 1/73 SYR4 2012–2018
Lithium
12.2 µg/L
No EPA limit set
 1/6 UCMR-5 2024
58 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, TotalArsenicBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylene DibromideEthylbenzeneFluorideHfpo-DaMercuryNetfosaaNfdhaNmefosaaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
FRYE, ERIC
Phone
732-290-2011

Frequently asked questions about Matawan Borough Water De

Is Matawan Borough Water De tap water safe to drink?

EPA monitoring detected 23 contaminants in Matawan Borough Water De'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 Matawan Borough Water De's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Matawan Borough Water De serve?

Matawan Borough Water De reports serving 9,084 people in New Jersey, per its EPA record.

Has Matawan Borough Water De had any water quality violations?

The EPA has 224 violations on file for Matawan Borough Water De, of which 30 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.