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Tap water quality report

Parsippany-Troy Hills Water Department

EPA monitoring tested this supplier for 83 contaminants and detected 36. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

83
contaminants tested
36
detected
50,400
people served
17
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.

17
health-based violations
427
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2020-01-01 → 2020-06-30
TT Health-based Resolved 2020-01-01 → 2020-06-30
TT Health-based Resolved 2020-01-01 → 2020-06-30
TT Health-based Resolved 2020-01-01 → 2020-06-30
TT Health-based Resolved 2019-07-01 → 2019-12-31
TT Health-based Resolved 2019-07-01 → 2019-12-31
TT Health-based Resolved 2019-07-01 → 2019-12-31
TT Health-based Resolved 2019-07-01 → 2019-12-31
MCL Health-based Resolved 1998-07-01 → 1998-07-31
MCL Health-based Resolved 1997-01-01 → 1997-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFOA 0.0109 µg/L 26/29 2024
PFHXS 0.0080 µg/L 18/29 2024
Pfhxa 0.0083 µg/L 16/29 2024
PFBS 0.0070 µg/L 13/29 2024
Pfpea 0.0069 µg/L 13/29 2024
PFOS 0.0093 µg/L 6/29 2024
Pfba 0.0059 µg/L 5/29 2024
Pfhpa 0.0032 µg/L 3/29 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
7.1 µg/L
No EPA limit set
worst single sample: 10.4 µg/L
280/397 SYR4 2012–2019
Copper
379.5 µg/L 29%
of the EPA limit 1300 µg/L
worst single sample: 1061 µg/L
271/281 SYR4 2013–2019
TTHM
53 µg/L 66%
of the EPA limit 80 µg/L
worst single sample: 82 µg/L
261/261 SYR4 2012–2019
Bromodichloromethane
15.145 µg/L
No EPA limit set
worst single sample: 26.5 µg/L
238/397 SYR4 2012–2019
Bromoform
7.74 µg/L
No EPA limit set
worst single sample: 13.9 µg/L
237/396 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
37.515 µg/L 63%
of the EPA limit 60 µg/L
worst single sample: 54.2 µg/L
200/261 SYR4 2012–2019
Dibromoacetic Acid
3.219 µg/L
No EPA limit set
worst single sample: 8.33 µg/L
147/261 SYR4 2012–2019
Lead
16.5 µg/L 110%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 31 µg/L
131/258 SYR4 2013–2019
Chloroform
38.49 µg/L
No EPA limit set
worst single sample: 57 µg/L
130/397 SYR4 2012–2019
Nitrate-Nitrite
1661 µg/L 17%
of the EPA limit 10000 µg/L
worst single sample: 1730 µg/L
90/90 SYR4 2012–2019
Dichloroacetic Acid
24.315 µg/L
No EPA limit set
worst single sample: 33.1 µg/L
80/261 SYR4 2012–2019
Trichloroacetic Acid
20.15 µg/L
No EPA limit set
worst single sample: 23.4 µg/L
71/261 SYR4 2012–2019
1,1,1-Trichloroethane
1.4 µg/L 0.7%
of the EPA limit 200 µg/L
worst single sample: 1.6 µg/L
28/167 SYR4 2012–2019
Lead
0.0044 mg/L 29%
of the EPA limit 0.0150 mg/L
24/24 LCR 2026
Barium
79.25 µg/L 4%
of the EPA limit 2000 µg/L
worst single sample: 99 µg/L
23/23 SYR4 2014–2017
Chromium
5.099 µg/L 5.1%
of the EPA limit 100 µg/L
worst single sample: 5.7 µg/L
23/23 SYR4 2014–2017
Arsenic
1.648 µg/L 16%
of the EPA limit 10 µg/L
worst single sample: 1.76 µg/L
22/23 SYR4 2014–2017
Fluoride
119.5 µg/L 3%
of the EPA limit 4000 µg/L
worst single sample: 120 µg/L
22/34 SYR4 2014–2017
Combined Uranium
2.5915 µg/L 8.6%
of the EPA limit 30 µg/L
worst single sample: 2.84 µg/L
8/11 SYR4 2014
Gross Alpha, Excl. Radon And U
4.264 pCi/L 28%
of the EPA limit 15 pCi/L
worst single sample: 4.6 pCi/L
8/11 SYR4 2014
Monochloroacetic Acid
4.9115 µg/L
No EPA limit set
worst single sample: 5.09 µg/L
8/261 SYR4 2012–2019
Tetrachloroethylene
2.1545 µg/L 43%
of the EPA limit 5 µg/L
worst single sample: 2.83 µg/L
8/167 SYR4 2012–2019
Nitrate
1000 µg/L 10%
of the EPA limit 10000 µg/L
4/4 SYR4 2013–2015
Combined Radium (-226 And -228)
1.1575 pCi/L 23%
of the EPA limit 5 pCi/L
worst single sample: 1.16 pCi/L
2/12 SYR4 2014
1,1-Dichloroethylene
0.7000 µg/L 10%
of the EPA limit 7 µg/L
1/167 SYR4 2012–2019
Dichloromethane
1.03 µg/L 21%
of the EPA limit 5 µg/L
1/167 SYR4 2012–2019
Monobromoacetic Acid
6.06 µg/L
No EPA limit set
1/261 SYR4 2012–2019
Trichloroethylene
0.6000 µg/L 12%
of the EPA limit 5 µg/L
1/167 SYR4 2012–2019
47 contaminants tested, none detected
1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideEthylene DibromideEthylbenzeneHfpo-DaMercuryNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaSeleniumStyreneThallium, TotalTolueneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ANDRES, SEAN
Phone
973-263-7099

Frequently asked questions about Parsippany-Troy Hills Water Department

Is Parsippany-Troy Hills Water Department tap water safe to drink?

EPA monitoring detected 36 contaminants in Parsippany-Troy Hills Water Department'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 Parsippany-Troy Hills Water Department's water?

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

How many people does Parsippany-Troy Hills Water Department serve?

Parsippany-Troy Hills Water Department reports serving 50,400 people in New Jersey, per its EPA record.

Has Parsippany-Troy Hills Water Department had any water quality violations?

The EPA has 427 violations on file for Parsippany-Troy Hills Water Department, of which 17 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.