WaterVerge

Is Woodbridge Twp.-1225, NJ Tap Water Safe to Drink?

Graded B — but Strontium and Perchlorate were detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓

233K residents served 1 water system PWSID: NJ1225001
Overall Score
78.8 / 100
Violations
6 active
Last Updated
May 2026
Source
Surface water
#138 of 435 in New Jersey Top 54% nationally
Private
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
BGRADE
Water Quality Grade
78.8/100
waterverge.com
B 78.8/100

Woodbridge Twp.-1225, NJ — Water Quality Report

Woodbridge Twp.-1225's drinking water received a grade of B (78.8 out of 100), indicating good water quality. The city's 1 water system serves approximately 233,376 residents using surface water.

Lead levels were measured at 1.0 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 5 PFAS compounds, with levels exceeding EPA maximum contaminant levels in the water supply.

The system has 63 violations on record, including 1 health-based violation. 6 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Woodbridge Twp.-1225's water

Woodbridge Twp.-1225 ranks #138 out of 435 cities in New Jersey for water quality, placing it mid-range in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

Of particular concern: PFAS "forever chemical" levels exceed the 2024 EPA maximum contaminant levels. These synthetic compounds don't break down naturally and require specialized filtration such as reverse osmosis or granular activated carbon.

Hexavalent chromium (chromium-6) was detected at 0.48 µg/L in UCMR 3 testing. While below California's 10 µg/L limit and with no federal MCL set, residents sensitive to this contaminant may consider reverse osmosis filtration.

Quality Breakdown

Water quality score

See methodology →
78.8 out of 100 Grade B
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
36.7/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.0 ppb (90th percentile).
Contaminants
10.1/20
D
5 PFAS compounds detected.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Surface water.
Water Safety

Is Woodbridge Twp.-1225, NJ water safe to drink?

Concerns Identified

Woodbridge Twp.-1225's drinking water has significant quality concerns based on EPA testing data. With a grade of B (78.8/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 233,376 residents using surface water (rivers, lakes, or reservoirs).

6
Active Violations
1.0 ppb
Lead (90th %ile)
5 compounds
PFAS Detected
10 events
Disaster History

Recent water quality updates for Woodbridge Twp.-1225

A timeline of significant water quality events, violations, and data updates.

PFAS
5 PFAS "forever chemical" compounds detected

PFAS levels exceed EPA maximum contaminant levels. Reverse osmosis or activated carbon filtration recommended.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Woodbridge Twp.-1225's water quality assessment. Grade: B (78.8/100).

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Disaster
REMNANTS OF HURRICANE IDA

Federal disaster declaration (FEMA DR-4614). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Woodbridge Twp.-1225's water supply.

Lead Within Limits
Detected: 1.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

PFAS (5 compounds) Elevated
Detected: Highest: lithium at 14.0000 µg/L Limit: 0.004 µg/L (EPA MCL)

PFAS "forever chemicals" exceed EPA maximum contaminant levels. Reverse osmosis or granular activated carbon filtration strongly recommended.

PFAS "forever chemicals" detected

UCMR 5 testing found 5 PFAS compounds in Woodbridge Twp.-1225's water supply. PFAS are synthetic chemicals that persist indefinitely in the environment and the human body.

Compound Level EPA MCL Status
lithium 14.0000 µg/L 0.004 µg/L Within Limit
PFBA 0.0073 µg/L 0.004 µg/L Within Limit
PFOA 0.0065 µg/L 0.004 µg/L Over MCL
PFPeA 0.0054 µg/L 0.004 µg/L Within Limit

Violation history

Woodbridge Twp.-1225's water system has 63 total violations on record, including 1 health-based violation. 6 remain unresolved. 4 violations were issued in the last 5 years.

MROtherTT
Most recent violations:
Jan 2025 Lead and Copper Rule Resolved
Apr 2023 Lead and Copper Rule Open
Feb 2022 Public Notice Open
Jan 2022 Lead and Copper Rule Resolved
Jul 2020 Consumer Confidence Rule Open

Flood & environmental risk

Middlesex County has experienced 10 federally declared disasters since 1992. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Lemon Creek, Elizabeth River At Ursino Lake At Elizabeth, Rahway River Near Springfield, Rahway River At Kenilworth, Rahway River At Rahway.

REMNANTS OF HURRICANE IDA
Hurricane FEMA DR-4614
REMNANTS OF HURRICANE IDA
Hurricane FEMA DR-3573
HURRICANE SANDY
Hurricane FEMA DR-4086

Where does Woodbridge Twp.-1225's water come from?

Woodbridge Twp.-1225's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 233,376 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Lemon Creek (river), Elizabeth River At Ursino Lake At Elizabeth (river), Rahway River Near Springfield (river), Rahway River At Kenilworth (river), Rahway River At Rahway (river).

What Woodbridge Twp.-1225 residents can do

Install a water filter

Recommended: Reverse osmosis system. This addresses the specific contaminants found in Woodbridge Twp.-1225's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Woodbridge Twp.-1225's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
1.0 ppb
EPA Action Level: 15 ppb · 7% of limit
Safe Level
lithium
PFAS / Forever Chemical
Near MCL
14.0000 µg/L
EPA MCL: 0.004 µg/L · +20% over limit
Detected
HAA5 (Disinfection Byproducts)
Disinfection Byproduct
Safe
22.1 µg/L
EPA MCL: 60 µg/L · 37% of limit
Within LimitUCMR 4 DataHAA6Br: 7.5 µg/LHAA9: 29.1 µg/L
Chromium-6 (Hexavalent Chromium)
Inorganic
Detected
0.48 µg/L
CA MCL (no federal MCL): 10 µg/L · 5% of limit
DetectedUCMR 3 Data
Strontium
Inorganic
Over HRL
7756.2 µg/L
EPA Health Ref Level: 1,500 µg/L · +20% over limit
Over HRLUCMR 3 Data
1,4-Dioxane
Organic
Elevated
0.27 µg/L
EPA Health Advisory: 0.35 µg/L · 78% of limit
DetectedUCMR 3 Data
Manganese
Inorganic
Detected
29.0 µg/L
EPA Secondary MCL: 50 µg/L · 58% of limit
DetectedUCMR 4 Data
Perchlorate
Inorganic
Over CA MCL
7.10 µg/L
CA MCL (no federal MCL): 6 µg/L · +18% over limit
Over CA MCLUCMR 1 Data (2001–2005)
Vanadium
Inorganic
Elevated
12.87 µg/L
EPA Short-term HA: 21 µg/L · 61% of limit
DetectedUCMR 3 Data
Chlorate
Disinfection Byproduct
Elevated
139.8 µg/L
EPA Lifetime HA: 210 µg/L · 67% of limit
DetectedUCMR 3 Data
Molybdenum
Inorganic
Elevated
20.08 µg/L
EPA Lifetime HA: 40 µg/L · 50% of limit
DetectedUCMR 3 Data
Lithium
Inorganic
Detected
14.0 µg/L
State screening level: 60 µg/L · 23% of limit
DetectedNo federal MCLUCMR 5 Data (2023–2025)
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
5
Detected
1
Exceed EPA MCL
1.63
Hazard Index
PFOA max: 0.0065 µg/L
Compliance Record

Violation summary

63
Total violations
1
Health-based
6
Active / unresolved
Jan 2025
Most recent violation
Compliance Record

Violations & advisories

63 Total
6 Active
1 Health-based
57 Resolved
1 SNC
Violations by category
Volatile Organic Chemicals
42
Lead and Copper Rule
8
Nitrate Rule
3
Consumer Confidence Rule
2
Stage 2 Disinfectants and Disinfection Byproducts Rule
2
Apr 2023 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Feb 2022 Active
Public Notice
Other Violation 0
Jul 2020 Active
Consumer Confidence Rule
Other Violation 0
Oct 2018 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2018 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jan 2025 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2025
Jan 2022 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2022
Jul 2020 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2020
Jul 2019 Resolved
Lead and Copper Rule
Treatment Technique
Health-Based Health Resolved Dec 2019
Jul 2017 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2017
Jan 2017 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2017
Oct 2015 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2015
Jun 2014 Resolved
TTHM
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Aug 2014
Jan 2014 Resolved
Nitrate
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2014
Jun 2013 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2013
Sep 2012 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 2012
Jan 2005 Resolved
Chromium
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2005
Jan 2005 Resolved
CYANIDE
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2005
Jan 2003 Resolved
Nitrate
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2003
Showing 20 of 63 violations
Environmental Risk

Drought conditions

D1 — moderate drought

Middlesex County is currently in D1 (moderate drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

9.2%
Months in D2+ (last 30y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

10
Declared disasters
Sep 2021
Most recent
Hurricane
Most common type

Middlesex County has experienced 10 federally declared disasters since 1992. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2021
REMNANTS OF HURRICANE IDA
Hurricane FEMA #4614
Sep 2021
REMNANTS OF HURRICANE IDA
Hurricane FEMA #3573
Oct 2012
HURRICANE SANDY
Hurricane FEMA #4086
Oct 2012
HURRICANE SANDY
Hurricane FEMA #3354
Aug 2011
HURRICANE IRENE
Hurricane FEMA #4021
Aug 2011
HURRICANE IRENE
Hurricane FEMA #3332

Recommended water filters

Based on contaminants detected in Woodbridge Twp.-1225's water supply, we recommend the following filter types.

🧪
For PFAS
Reverse Osmosis or Activated Carbon Block
PFAS compounds exceed EPA maximum contaminant levels

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.0 15 ppb Inorganic Safe
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium 14.000 HI µg/L PFAS Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA 0.007 HI µg/L PFAS Detected
PFBS ND HI µg/L PFAS Not Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA 0.004 HI µg/L PFAS Detected
PFHxS ND HI µg/L PFAS Not Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA 0.006 0.004 µg/L PFAS Over MCL
PFOS ND 0.004 µg/L PFAS Not Detected
PFPeA 0.005 HI µg/L PFAS Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 4.0 ppb from 1992 (5.0 ppb) to 2025 (1.0 ppb).
Contaminant Rankings

See how Woodbridge Twp.-1225 compares by contaminant

Explore where Woodbridge Twp.-1225 ranks among all New Jersey cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Surface Water
Operator
Private
Population Served
233,376
Water Systems
1
Water Source

Where Woodbridge Twp.-1225's water comes from

Surface Water

Woodbridge Twp.-1225's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by private ownership and serves approximately 233,376 people through 1 water system.

Local Hydrology

Water bodies near Woodbridge Twp.-1225

Woodbridge Twp.-1225 is located near 5 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.

Lemon Creek
river
Elizabeth River At Ursino Lake At Elizabeth
river
Rahway River Near Springfield
river
Rahway River At Kenilworth
river
Rahway River At Rahway
river
Infrastructure

Water systems serving Woodbridge Twp.-1225

System Name PWSID Population Source
MIDDLESEX WATER COMPANY NJ1225001 233,376 SW
Regional Comparison

How Woodbridge Twp.-1225 compares

Full New Jersey rankings →

Woodbridge Twp.-1225's score of 78.8/100 is above the average of 63/100 among major New Jersey cities. It outscores 10 of 10 nearby cities.

Woodbridge Twp.-1225 (this city)
78.8
New Jersey avg
63
City Profile

About Woodbridge Twp.-1225, NJ

Wikipedia →

Iselin is an unincorporated community and census-designated place (CDP) located within Woodbridge Township, in Middlesex County, in the U.S. state of New Jersey. As of the 2020 United States census, Iselin's population was 20,088, up from 18,695 in 2010.

Economic Profile
$109,646
Median Income
$370,390
Median Home Value
$1,999/mo
Median Rent
3%
Unemployment
Community
40.4
Median Age
2,268
People / sq mi
53.3%
College Educated
68.7%
Homeownership
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Frequently asked questions

Is Woodbridge Twp.-1225, NJ tap water safe to drink?

Woodbridge Twp.-1225's water quality earned a grade of B (78.8/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #138 out of 435 cities tested in New Jersey.

What contaminants are in Woodbridge Twp.-1225's water?

Lead was measured at 1.0 ppb (90th percentile). 5 PFAS compounds were detected. 63 violations are on record.

How is Woodbridge Twp.-1225's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Woodbridge Twp.-1225?

PFAS compounds exceed EPA limits — a reverse osmosis or activated carbon filter is recommended.

Where does Woodbridge Twp.-1225's water come from?

Woodbridge Twp.-1225's water is sourced from Surface water. The city has 1 water system serving approximately 233,376 residents.

What health violations has Woodbridge Twp.-1225's water system had?

Woodbridge Twp.-1225 has 1 health-based violation on record. The most recent violation was recorded in January 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 6 violations remain unresolved.

Why does Woodbridge Twp.-1225 have so many PFAS compounds in its water?

5 different PFAS "forever chemical" compounds were detected in Woodbridge Twp.-1225's water supply during UCMR 5 testing. PFAS contamination often originates from proximity to military installations (AFFF firefighting foam), airports, industrial manufacturing sites, or wastewater treatment facilities. Some levels exceed the 2024 EPA maximum contaminant levels — a reverse osmosis or NSF-certified activated carbon filter is strongly recommended.

How does Woodbridge Twp.-1225's water compare to other cities?

Woodbridge Twp.-1225 ranks #138 out of 435 cities in New Jersey (better than 68% of state cities) and #8482 out of 15744 cities nationally (46th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.