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Community Water System · PWS NJ1107001

Lawrenceville School

Lawrenceville, New Jersey 08648 - drinking water served from groundwater sources to 1,200 people, tracked in EPA SDWIS and UCMR5.

1,200
People served
162
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 162 drinking-water violations at Lawrenceville School, 1% of them health-based - above the New Jersey per-system average.

162
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
1,200
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Lawrenceville School

Lawrenceville School is a private-owned community water system that delivers drinking water to 1,200 residents in Lawrenceville, New Jersey (Mercer County) through 89 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 162 total violations for this system , of which 1 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 153 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is CHLOROBENZENE, recorded in 6 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across New Jersey, EPA tracks 3,428 public water systems serving 9,570,926 people, with 204,988 cumulative violations and 22,229 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 59.8 violations. Statewide, 208 of 264 UCMR5-tested systems have reported PFAS detections (78.8%).

Lawrenceville School's 162 violations sit above the New Jersey average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
1,200
Total Violations
162
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
89
County
Mercer
School/Daycare
No
MCL Violations
0
Monitoring Violations
153
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
CHLOROBENZENE MR 6 1997
Benzene MR 6 1997
Toluene MR 6 1997
cis-1,2-Dichloroethylene MR 6 1997
Xylenes, Total MR 6 1997
DICHLOROMETHANE MR 6 1997
o-Dichlorobenzene MR 6 1997
p-Dichlorobenzene MR 6 1997
Vinyl chloride MR 6 1997
1,2-Dichloroethane MR 6 1997
1,1,1-Trichloroethane MR 6 1997
Carbon tetrachloride MR 6 1997
Trichloroethylene MR 6 1997
1,1,2-Trichloroethane MR 6 1997
Tetrachloroethylene MR 6 1997
Ethylbenzene MR 6 1997
1,2,4-Trichlorobenzene MR 6 1997
trans-1,2-Dichloroethylene MR 6 1997
1,2-Dichloropropane MR 6 1997
1,1-Dichloroethylene MR 6 1997
Styrene MR 6 1997
Nitrate MR 5 2005
Total Haloacetic Acids (HAA5) MR 3 2004
E. COLI MR 3 2016
Chlorine MR 3 2025
TTHM MR 3 2004
Revised Total Coliform Rule MON 2 2025
Arsenic MR 1 1988
Lead and Copper Rule MR 1 2004
Revised Total Coliform Rule RPT 1 2025

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Lawrenceville School.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NJ1107001 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New Jersey Drinking Water Authority

NJ DEP, Bureau of Safe Drinking Water is the primacy agency that licenses and inspects Lawrenceville School under EPA-delegated authority.

Open NJ regulator portal

Source: NJ DEP, Bureau of Safe Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Chlorine MR 3 SDWIS / NJ1107001 / 0999
2025 Revised Total Coliform Rule MON 2 SDWIS / NJ1107001 / 8000
2025 Revised Total Coliform Rule RPT 1 SDWIS / NJ1107001 / 8000
2016 E. COLI MR 3 SDWIS / NJ1107001 / 3014
2014 Lead and Copper Rule TT 1 SDWIS / NJ1107001 / 5000
2005 Nitrate MR 5 SDWIS / NJ1107001 / 1040
2004 Total Haloacetic Acids (HAA5) MR 3 SDWIS / NJ1107001 / 2456
2004 TTHM MR 3 SDWIS / NJ1107001 / 2950
2004 Lead and Copper Rule MR 1 SDWIS / NJ1107001 / 5000
1997 CHLOROBENZENE MR 6 SDWIS / NJ1107001 / 2989
1997 Benzene MR 6 SDWIS / NJ1107001 / 2990
1997 Toluene MR 6 SDWIS / NJ1107001 / 2991
1997 cis-1,2-Dichloroethylene MR 6 SDWIS / NJ1107001 / 2380
1997 Xylenes, Total MR 6 SDWIS / NJ1107001 / 2955
1997 DICHLOROMETHANE MR 6 SDWIS / NJ1107001 / 2964

How Lawrenceville School Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Lawrenceville School New Jersey avg Federal benchmark
Total violations 162 59.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 6.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 78.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,200 2,792 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 3,428 regulated public water systems in New Jersey.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Lawrenceville School water safe to drink? ▼
Lawrenceville School (PWS ID: NJ1107001) has 162 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,200 people using Groundwater sources.
How many people does Lawrenceville School serve? ▼
Lawrenceville School serves 1,200 people in Lawrenceville, New Jersey. It is a Private-owned system using Groundwater water sources with 89 service connections.
What type of violations does Lawrenceville School have? ▼
Lawrenceville School has 162 total violations: 1 health-based violations (MCL exceedances or treatment failures), 153 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Lawrenceville School water? ▼
No PFAS testing data is available for Lawrenceville School under the EPA's UCMR5 monitoring program.
What water source does Lawrenceville School use? ▼
Lawrenceville School uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.