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Tap water quality report

Mercer County Correctional Center

EPA monitoring tested this supplier for 52 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

52
contaminants tested
18
detected
860
people served
9
health-based violations
New Jersey rankingsLead in New JerseyPFAS in New Jersey
Water source
Ground water
Ownership
Local government
Counties served
Mercer

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.

9
health-based violations
297
violations on file
5
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2022-02-13
TT Health-based Resolved 2022-02-13
TT Health-based Resolved 2022-02-13
TT Health-based Resolved 2022-02-13
TT Health-based Resolved 2017-08-08
TT Health-based Resolved 2017-08-08
TT Health-based Resolved 2017-08-08
TT Health-based Resolved 2016-12-01
TT Health-based Resolved 2016-12-01
MR Monitoring Unaddressed 2025-12-25

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
Copper
319.6 µg/L 25%
of the EPA limit 1300 µg/L
worst single sample: 705 µg/L
165/166 SYR4 2012–2019
Lead
19.375 µg/L 129%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 90.2 µg/L
116/167 SYR4 2012–2019
Nitrate
5032.5 µg/L 50%
of the EPA limit 10000 µg/L
worst single sample: 5130 µg/L
36/36 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 33/33 LCR 2026
Total Haloacetic Acids (HAA5)
3.7 µg/L 6.2%
of the EPA limit 60 µg/L
worst single sample: 4 µg/L
7/13 SYR4 2012–2019
Dibromoacetic Acid
1.46 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
5/13 SYR4 2012–2019
Dibromochloromethane
1.848 µg/L
No EPA limit set
worst single sample: 1.99 µg/L
5/20 SYR4 2012–2019
TTHM
3.846 µg/L 4.8%
of the EPA limit 80 µg/L
worst single sample: 3.99 µg/L
4/12 SYR4 2014–2019
Barium
39.96 µg/L 2%
of the EPA limit 2000 µg/L
worst single sample: 40.6 µg/L
3/3 SYR4 2012–2018
Bromodichloromethane
1.301 µg/L
No EPA limit set
worst single sample: 1.36 µg/L
3/20 SYR4 2012–2019
Arsenic
0.7850 µg/L 7.9%
of the EPA limit 10 µg/L
worst single sample: 0.8000 µg/L
2/3 SYR4 2012–2018
Bromoform
1.3315 µg/L
No EPA limit set
worst single sample: 1.35 µg/L
2/20 SYR4 2012–2019
Dichloroacetic Acid
3.95 µg/L
No EPA limit set
worst single sample: 4 µg/L
2/13 SYR4 2012–2019
Chloroform
0.6400 µg/L
No EPA limit set
 1/20 SYR4 2012–2019
Chromium
1.3 µg/L 1.3%
of the EPA limit 100 µg/L
 1/3 SYR4 2012–2018
Combined Radium (-226 And -228)
0.5700 pCi/L 11%
of the EPA limit 5 pCi/L
 1/3 SYR4 2012–2018
Gross Alpha, Excl. Radon And U
4.06 pCi/L 27%
of the EPA limit 15 pCi/L
 1/1 SYR4 2012
Selenium
0.8000 µg/L 1.6%
of the EPA limit 50 µg/L
 1/3 SYR4 2012–2018
34 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideCombined UraniumDichloromethaneEthylene DibromideEthylbenzeneFluorideMercuryMonobromoacetic AcidMonochloroacetic AcidStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
FRIEL, TIMOTHY
Phone
609-532-1572
Email
[email protected]

Frequently asked questions about Mercer County Correctional Center

Is Mercer County Correctional Center tap water safe to drink?

EPA monitoring detected 18 contaminants in Mercer County Correctional Center'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 Mercer County Correctional Center's water?

EPA monitoring detected Copper, Lead, Nitrate, Lead, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Mercer County Correctional Center serve?

Mercer County Correctional Center reports serving 860 people in New Jersey, per its EPA record.

Has Mercer County Correctional Center had any water quality violations?

The EPA has 297 violations on file for Mercer County Correctional Center, of which 9 are health-based (a contaminant limit or required treatment was breached) and 5 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.