Water Quality Report · Updated October 07, 2026
TRENTON WATER WORKS
TRENTON WATER WORKS delivers tap water graded F (33/100) by TapWaterSafety.org. The utility serves approximately 217,000 residents in LAWRENCE TWP.-1107, New Jersey using surface water. The most significant water quality concerns are: PFAS contamination; Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. For questions, the utility can be reached at 609-433-4749.
Is LAWRENCE TWP.-1107 tap water safe to drink?
TRENTON WATER WORKS delivers tap water that earns a grade of F (33/100) from TapWaterSafety.org — a poor rating, with significant contamination concerns and/or recent violations.
The utility serves 217,000 residents in LAWRENCE TWP.-1107 and 4 other communities, drawing from surface water.
Public testing data identifies 13 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Haloacetic acids (HAA5), Total trihalomethanes (TTHMs), Trichloroacetic acid, Bromodichloromethane, Dichloroacetic acid, Chloroform, Chromium (hexavalent), Dibromochloromethane, Nitrate, Nitrate and nitrite, Perfluorooctanoic acid (PFOA), Perfluorooctane sulfonate (PFOS). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for TRENTON WATER WORKS (system ID NJ1111001) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Lead and Copper Rule | Required treatment not met | 05/21/2020 | Open |
| Public Notice Rule and Revised PN Rule | Other (e.g. public notice) | 03/03/2018 | Open |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | Contaminant above the legal limit | 10/01/2024 | Open |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | Missed testing or reporting | 04/01/2023 | Open |
| Lead and Copper Rule | Missed testing or reporting | 01/01/2023 | Open |
| Revised Total Coliform Rule | Missed testing | 04/01/2023 | Open |
| Nitrate Rule | Missed testing or reporting | 01/01/2023 | Open |
| Surface Water Treatment Rule | Missed testing or reporting | 04/01/2023 | Open |
| Volatile Organic Chemicals | Missed testing or reporting | 01/01/2023 | Open |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Missed testing or reporting | 04/01/2023 | Open |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for LAWRENCE TWP.-1107 residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for TRENTON WATER WORKS.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 25.1 ppb, 419x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 37.4 ppb, 374x above the EWG health guideline of 0.1 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 46.6 ppb, 311x above the EWG health guideline of 0.15 ppb.
Contact TRENTON WATER WORKS
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for LAWRENCE TWP.-1107
Filters matched to the specific contaminants in this water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 33/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
25.1 ppb | 0.06 | — | — | — | — | — | 419× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
37.4 ppb | 0.1 | 60.0 | 60 | — | — | — | 374× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
46.6 ppb | 0.15 | 80.0 | 100 | — | — | — | 311× over |
| Trichloroacetic acid Disinfection byproduct |
13.9 ppb | 0.1 | — | — | — | — | — | 139× over |
| Bromodichloromethane Disinfection byproduct |
7.75 ppb | 0.06 | — | — | — | — | — | 129× over |
| Dichloroacetic acid Disinfection byproduct |
19.5 ppb | 0.2 | — | — | — | — | — | 97× over |
| Chloroform Disinfection byproduct |
33.1 ppb | 0.4 | — | — | — | — | — | 83× over |
| Chromium (hexavalent) Heavy metal |
0.401 ppb | 0.02 | — | — | — | — | — | 20× over |
| Dibromochloromethane Disinfection byproduct |
1.26 ppb | 0.1 | — | — | — | — | — | 13× over |
| Nitrate Inorganic |
0.86 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 6.1× over |
| Nitrate and nitrite Inorganic |
0.86 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 6.1× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.448 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 5.0× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.718 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 2.4× over |
| Chlorate Disinfection byproduct |
50.8 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Dibromoacetic acid Disinfection byproduct |
0.0069 ppb | 0.03 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.0466 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
1.72 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
20.7 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Manganese Heavy metal |
2.77 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
0.035 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0764 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
2.3 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.683 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Phenanthrene Other |
0.01 ppb | — | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
TRENTON WATER WORKS service area
This water system serves 5 communities in Mercer County, New Jersey. Click any city for its dedicated tap water quality page.
Find the right filter for LAWRENCE TWP.-1107 water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.