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Tap water quality report

East Hanover Twp Water Dept

EPA monitoring tested this supplier for 80 contaminants and detected 29. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

80
contaminants tested
29
detected
11,393
people served
16
health-based violations
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.

16
health-based violations
319
violations on file
1
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-07-01 → 2024-12-31
TT Health-based Resolved 2024-07-01 → 2024-12-31
TT Health-based Resolved 2024-07-01 → 2024-12-31
TT Health-based Resolved 2024-07-01 → 2024-12-31
TT Health-based Resolved 2020-09-08
TT Health-based Resolved 2020-09-08
TT Health-based Resolved 2020-09-08
MCL Health-based Resolved 2013-07-01 → 2013-07-31
MCL Health-based Resolved 2013-07-01 → 2013-07-31
MCL Health-based Resolved 2013-07-01 → 2013-07-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFOA 0.0110 µg/L 7/8 2024
PFOS 0.0079 µg/L 5/8 2024
Pfhxa 0.0080 µg/L 4/8 2024
Pfpea 0.0114 µg/L 4/8 2024
Pfba 0.0080 µg/L 3/8 2024
Pfhpa 0.0047 µg/L 3/8 2024
PFHXS 0.0052 µg/L 3/8 2024
PFBS 0.0031 µg/L 2/8 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
Dibromochloromethane
14.225 µg/L
No EPA limit set
worst single sample: 19.6 µg/L
152/161 SYR4 2012–2019
Bromodichloromethane
17.435 µg/L
No EPA limit set
worst single sample: 29 µg/L
134/161 SYR4 2012–2019
Chloroform
23.3 µg/L
No EPA limit set
worst single sample: 39.7 µg/L
131/161 SYR4 2012–2019
Bromoform
5.33 µg/L
No EPA limit set
worst single sample: 8.8 µg/L
128/161 SYR4 2012–2019
TTHM
57.68 µg/L 72%
of the EPA limit 80 µg/L
worst single sample: 78.3 µg/L
123/128 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
23.18 µg/L 39%
of the EPA limit 60 µg/L
worst single sample: 42.2 µg/L
94/128 SYR4 2012–2019
Dibromoacetic Acid
5.989 µg/L
No EPA limit set
worst single sample: 9.96 µg/L
87/128 SYR4 2012–2019
Copper
597 µg/L 46%
of the EPA limit 1300 µg/L
worst single sample: 988 µg/L
81/94 SYR4 2014–2017
Dichloroacetic Acid
14.425 µg/L
No EPA limit set
worst single sample: 21.1 µg/L
80/128 SYR4 2012–2019
Trichloroacetic Acid
8.1445 µg/L
No EPA limit set
worst single sample: 10.7 µg/L
38/128 SYR4 2012–2019
Nitrate-Nitrite
1559 µg/L 16%
of the EPA limit 10000 µg/L
worst single sample: 1570 µg/L
32/32 SYR4 2012–2019
Lead
0.0013 mg/L 8.7%
of the EPA limit 0.0150 mg/L
21/21 LCR 2026
Lead
45.9 µg/L 306%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 54 µg/L
19/90 SYR4 2014–2017
Fluoride
130 µg/L 3.3%
of the EPA limit 4000 µg/L
8/8 SYR4 2014–2017
Monochloroacetic Acid
3.6225 µg/L
No EPA limit set
worst single sample: 3.63 µg/L
6/128 SYR4 2012–2019
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
4/4 SYR4 2014–2017
Barium
58.25 µg/L 2.9%
of the EPA limit 2000 µg/L
worst single sample: 59 µg/L
4/4 SYR4 2014–2017
Chromium
1.85 µg/L 1.9%
of the EPA limit 100 µg/L
worst single sample: 2 µg/L
4/4 SYR4 2014–2017
cis-1,2-Dichloroethylene
1.055 µg/L 1.5%
of the EPA limit 70 µg/L
worst single sample: 1.1 µg/L
4/33 SYR4 2012–2019
Combined Radium (-226 And -228)
1.545 pCi/L 31%
of the EPA limit 5 pCi/L
worst single sample: 1.55 pCi/L
3/4 SYR4 2012–2018
Trichloroethylene
1.1 µg/L 22%
of the EPA limit 5 µg/L
3/33 SYR4 2012–2019
51 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, TotalBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideDichloromethaneEthylene DibromideEthylbenzeneHfpo-DaMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneVinyl ChlorideXylenes, TotalLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SCHIMMINGER, EDWARD
Phone
973-418-5075

Frequently asked questions about East Hanover Twp Water Dept

Is East Hanover Twp Water Dept tap water safe to drink?

EPA monitoring detected 29 contaminants in East Hanover Twp Water Dept'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 East Hanover Twp Water Dept's water?

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

How many people does East Hanover Twp Water Dept serve?

East Hanover Twp Water Dept reports serving 11,393 people in New Jersey, per its EPA record.

Has East Hanover Twp Water Dept had any water quality violations?

The EPA has 319 violations on file for East Hanover Twp Water Dept, of which 16 are health-based (a contaminant limit or required treatment was breached) and 1 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.