Is Lawrenceville School Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
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.

health-based violations

157

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2014-01-01
RPT	Monitoring	Unaddressed	2025-02-11
MON	Monitoring	Archived	2025-01-01 → 2025-01-31
MON	Monitoring	Archived	2025-01-01 → 2025-01-31
MON	Monitoring	Archived	2025-01-01 → 2025-01-31
MR	Monitoring	Archived	2025-01-01 → 2025-03-31
MR	Monitoring	Archived	2025-01-01 → 2025-03-31
MR	Monitoring	Archived	2025-01-01 → 2025-03-31
MR	Monitoring	Resolved	2016-09-15
MR	Monitoring	Resolved	2016-09-15

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
Copper	1514 µg/L 116% of the EPA limit, at the 95th percentile of samples — 1300 µg/L worst single sample: 10700 µg/L	104/112	SYR4	2012–2019
Lead	68.1 µg/L 454% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 958 µg/L	93/103	SYR4	2012–2019
Nitrate	4102.5 µg/L 41% of the EPA limit 10000 µg/L worst single sample: 4200 µg/L	34/34	SYR4	2012–2018
Bromoform	16.2 µg/L No EPA limit set worst single sample: 17.7 µg/L	26/29	SYR4	2012–2019
Dibromochloromethane	13.25 µg/L No EPA limit set worst single sample: 14.7 µg/L	26/29	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	26/26	LCR	2025
Bromodichloromethane	11.43 µg/L No EPA limit set worst single sample: 14 µg/L	24/29	SYR4	2012–2019
Chloroform	52.2 µg/L No EPA limit set worst single sample: 56 µg/L	20/29	SYR4	2012–2019
TTHM	67.05 µg/L 84% of the EPA limit 80 µg/L worst single sample: 73 µg/L	18/18	SYR4	2012–2019
Barium	510 µg/L 26% of the EPA limit 2000 µg/L worst single sample: 590 µg/L	6/6	SYR4	2012–2018
Total Haloacetic Acids (HAA5)	16.9175 µg/L 28% of the EPA limit 60 µg/L worst single sample: 19.9 µg/L	6/18	SYR4	2012–2019
Xylenes, Total	1.085 µg/L 0% of the EPA limit 10000 µg/L worst single sample: 1.09 µg/L	6/12	SYR4	2012–2018
Arsenic	0.8940 µg/L 8.9% of the EPA limit 10 µg/L worst single sample: 0.9300 µg/L	5/6	SYR4	2012–2018
Selenium	2.56 µg/L 5.1% of the EPA limit 50 µg/L worst single sample: 2.6 µg/L	5/6	SYR4	2012–2018
Dibromoacetic Acid	2.273 µg/L No EPA limit set worst single sample: 2.39 µg/L	4/18	SYR4	2012–2019
Chromium	2.02 µg/L 2% of the EPA limit 100 µg/L worst single sample: 2.1 µg/L	3/6	SYR4	2012–2018
Combined Radium (-226 And -228)	2.418 pCi/L 48% of the EPA limit 5 pCi/L worst single sample: 2.52 pCi/L	3/4	SYR4	2012–2018
Monochloroacetic Acid	15.9785 µg/L No EPA limit set worst single sample: 16.4 µg/L	2/18	SYR4	2012–2019
Thallium, Total	0.0590 µg/L 2.9% of the EPA limit 2 µg/L worst single sample: 0.0600 µg/L	2/6	SYR4	2012–2018
Antimony, Total	0.0900 µg/L 1.5% of the EPA limit 6 µg/L	1/6	SYR4	2012–2018
Beryllium, Total	0.0600 µg/L 1.5% of the EPA limit 4 µg/L	1/6	SYR4	2012–2018
Ethylbenzene	0.1500 µg/L 0% of the EPA limit 700 µg/L	1/12	SYR4	2012–2018
Monobromoacetic Acid	1.08 µg/L No EPA limit set	1/18	SYR4	2012–2019
Nitrate-Nitrite	3080 µg/L 31% of the EPA limit 10000 µg/L	1/1	SYR4	2019
Trichloroacetic Acid	1.07 µg/L No EPA limit set	1/18	SYR4	2012–2019

43 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCyanideCadmiumCarbon TetrachlorideDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndrinFluorideHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: SMITH, ROBERT
Phone: 609-895-2081

Frequently asked questions about Lawrenceville School

Is Lawrenceville School tap water safe to drink?

EPA monitoring detected 25 contaminants in Lawrenceville School'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 Lawrenceville School's water?

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

How many people does Lawrenceville School serve?

Lawrenceville School reports serving 1,200 people in New Jersey, per its EPA record.

Has Lawrenceville School had any water quality violations?

The EPA has 157 violations on file for Lawrenceville School, of which 1 is 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.