Current Noncompliance NJ

Aqua Nj - Hamilton Square

EPA ID: NJ1103001 · 39,128 people served · 9 ZIP codes

ZipCheckup's reading of EPA SDWIS for Aqua Nj - Hamilton Square (NJ1103001): 2 unresolved EPA violations on record. Tallying the federal enforcement file for Aqua Nj - Hamilton Square yields 2 open violations that have not been formally closed - each finding sits in the EPA database while the utility continues to deliver water to approximately 39,128 residents and works through the required corrective action process.

Data: EPA SDWIS

F · 33
Avg Safety Score
39,128
People Served
9
ZIP Codes Served
16
Violations (5yr)
Surface Water
Water Source
Zone 1
Radon Risk · High
8
Contaminants Flagged
$480K
Median Home Value in Service Area

Service Area Map

Coverage area for Aqua Nj - Hamilton Square Source: EPA SDWIS service area boundaries.

Service area boundary - Grade F

Service Area Demographics

$120,760
Median Household Income
120,817
Service Area Population
31%
Disadvantaged Population
27th
Poverty Percentile
30th
Energy Burden Percentile
62%
Pre-1986 Housing

The Aqua Nj - Hamilton Square serves a community with a median household income of $120,760 and an estimated 120,817 residents across its service area. Approximately 62% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: 31% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.

🌊 Where Does Your Water Come From?

Surface Water

Aqua Nj - Hamilton Square's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.

Elevated Risk
Source Contamination Risk
39th
Wastewater Discharge Proximity
66th
Superfund Site Proximity

Superfund Proximity Note: This service area ranks in the 66th percentile nationally for proximity to Superfund (NPL) sites.

Infrastructure Risk

52 yr
Avg Pipe Age
Copper
Pipe Material
23 yr
Est. Remaining Life
Accelerating Decay
Decay Status
Installed 69% of expected lifespan used End of life

Detected Contaminants

How Aqua Nj - Hamilton Square compares to EPA limits

Lead 1 mg/L (action level) (EXCEEDS LIMIT)
0 EPA Limit: 0.015 mg/L (action level)
Brain damage in children, kidney & blood pressure in adults

What This Means For You

Lead at 1 mg/L (action level) exceeds the EPA maximum of 0.015 mg/L (action level). Brain damage in children, kidney & blood pressure in adults. Consider reverse osmosis filtration.

Stage 1 DBP Rule at 4 mg/L exceeds the EPA maximum of mg/L.

Gross Alpha at 2 pCi/L exceeds the EPA maximum of pCi/L. Increased cancer risk from radioactive particles. Consider reverse osmosis filtration.

Radium-226 at 2 pCi/L (combined Radium-226 & 228 ≤ 5 pCi/L) exceeds the EPA maximum of pCi/L (combined Radium-226 & 228 ≤ 5 pCi/L). Bone cancer and leukemia (known carcinogen). Consider ion exchange (water softener) filtration.

Radium-228 at 2 pCi/L (combined Radium-226 & 228 ≤ 5 pCi/L) exceeds the EPA maximum of pCi/L (combined Radium-226 & 228 ≤ 5 pCi/L). Bone cancer and leukemia (known carcinogen). Consider ion exchange (water softener) filtration.

PFAS Detected in Service Area

PFAS ("forever chemicals") have been detected in water serving this system's area. 36 detections recorded. 18 exceed federal EPA limits (4 ppt for PFOA/PFOS).

State limits: PFOA: 0.014 ppt, PFOS: 0.013 ppt, PFNA: 0.013 ppt
Health concern: PFAS are linked to cancer, thyroid disease, immune suppression, and developmental effects. They do not break down naturally.
Recommended filter: Reverse osmosis (RO) or activated carbon filters certified for PFAS removal. Find the right filter →

Lead was detected in this water system. reverse osmosis filtration can reduce exposure.

Find a certified water filter →

Comparable Water Systems

Similar-sized systems in New Jersey

Winslow Twp Dmu
39,174 people
D 74 violations
0 violations
Montclair Water Bureau
40,150 people
4 violations
Jackson Twp Mua
37,224 people
A 15 violations
Kearny Water Department
41,664 people
C 2 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Flood Insurance Radon Mitigation PFAS Treatment Water Filtration
Flood Insurance $1,344
Radon Mitigation $1,067
PFAS Treatment $400
Water Filtration $267
Total Estimated Cost $3,078

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

If water quality issues in this service area are not addressed, the estimated financial impact per household is:

Estimated Healthcare Costs $1,500

Annual per household (CDC est.)

PFAS Exposure - Lifetime Cost $1,000

Per person (emerging research est.)

Estimated Cumulative Cost Per Household

5 years
$7,665
10 years
$15,330
20 years
$30,660

Compare: Estimated remediation cost is $3,078 (one-time) vs. $15,330 in estimated inaction costs over 10 years.

Estimates based on published EPA, CDC, and peer-reviewed research. Individual costs vary by household size, property, and health factors. These are conservative lower-bound estimates intended for awareness, not financial advice.

System Overview

Aqua Nj - Hamilton Square (EPA ID: NJ1103001) is a community water system in New Jersey that serves approximately 39,128 people from surface water sources.

This system provides water to 9 ZIP codes across 6 communities.

ZIP-Area Home Safety Context: F (33/100)

This is the average Home Safety Score for 2 of 9 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.

Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Violation History

2 current noncompliance records in the accepted 2026Q2 snapshot; none are classified as health-based in this evidence.

Status breakdown for accepted records with record years 2021-2026: 7 resolved, 7 archived, 0 addressed, and 2 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Date Contaminant Type Status
July 1, 2024 Stage 1 DBP Rule Non-health-based Archived
January 1, 2024 Gross Alpha Non-health-based Archived
January 1, 2024 Combined Radium Non-health-based Archived
January 1, 2024 Gross Beta Non-health-based Archived
January 1, 2024 Radium-226 Non-health-based Archived
January 1, 2024 Radium-228 Non-health-based Archived
December 30, 2023 Stage 1 DBP Rule Non-health-based Unaddressed (current)
October 3, 2023 Total Coliform Non-health-based Unaddressed (current)
July 1, 2023 Gross Alpha Non-health-based Resolved
July 1, 2023 Combined Radium Non-health-based Resolved
July 1, 2023 Gross Beta Non-health-based Resolved
July 1, 2023 Radium-226 Non-health-based Resolved
July 1, 2023 Radium-228 Non-health-based Resolved
July 1, 2023 Stage 1 DBP Rule Non-health-based Archived
January 1, 2023 Lead Non-health-based Resolved
July 1, 2021 Stage 1 DBP Rule Non-health-based Resolved

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
Stage 1 DBP Rule Treatment Failure 4 No
Gross Alpha Radionuclides 2 No
Combined Radium Radionuclides 2 No
Gross Beta Radionuclides 2 No
Radium-226 Radionuclides 2 No
Radium-228 Radionuclides 2 No
Lead Inorganic 1 No
Total Coliform Microbiological 1 No

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
0 mg/L No N/A

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Need help with your water quality?

Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400

Find the Right Water Filter

Free tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by NJ or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Aqua Nj - Hamilton Square (NJ1103001) on EPA.gov.

Frequently Asked Questions

Is Aqua Nj - Hamilton Square water safe to drink?

The accepted 2026Q2 ECHO snapshot shows 2 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.

How many people does Aqua Nj - Hamilton Square serve?

Aqua Nj - Hamilton Square serves approximately 39,128 people across 9 ZIP codes in New Jersey.

Where does Aqua Nj - Hamilton Square get its water?

The primary water source is surface water.

Federal UCMR5 PFAS Monitoring: Above Current MCL

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). One or more PFAS compounds were measured above the current state-enforceable MCL.

Samples collected
261
Detections
31
Latest sample
9/3/2025
Highest analyte
PFOA: 11.6 ppt
Analyte Max detected Current MCL Status
PFOA 11.6 ppt 10 ppt Above current MCL
PFOS 11.4 ppt 10 ppt Above current MCL
PFHxS 10.4 ppt 10 ppt Above current MCL
PFHxA 5.4 ppt
PFPeA 4.6 ppt
PFHpA 3.4 ppt

Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.

Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →

Understand PFAS health context and filtration →

Frequently Asked Questions

Is water from Aqua Nj - Hamilton Square safe to drink?
Aqua Nj - Hamilton Square has a F safety grade based on 16 recorded violations. Some contaminants may exceed EPA limits - independent testing is recommended.
What contaminants are in Aqua Nj - Hamilton Square's water?
Detected contaminants include Lead, Stage 1 DBP Rule, Gross Alpha, Radium-226. Each is compared against EPA maximum contaminant levels (MCLs) in the detailed breakdown above.
Should I use a water filter?
Given 5 contaminants above EPA limits, a certified water filter can provide an extra layer of protection. The best type depends on specific contaminants in your water.
How many people does Aqua Nj - Hamilton Square serve?
Aqua Nj - Hamilton Square serves approximately 39,128 people with drinking water across 9 ZIP codes.
What is Aqua Nj - Hamilton Square's water source?
Aqua Nj - Hamilton Square draws water from surface water sources. Source type affects which contaminants are most likely to be present.
What is the demographic profile of Aqua Nj - Hamilton Square's service area?
The Aqua Nj - Hamilton Square service area has a median household income of $120,760. EPA EJScreen data classifies 31% of the population as disadvantaged, which may indicate greater vulnerability to environmental health risks.
Where does Aqua Nj - Hamilton Square get its water?
Aqua Nj - Hamilton Square's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap. Based on the exported violation history and environmental factors, the source contamination risk is classified as elevated.

How to cite this page

APA ZipCheckup. (n.d.). Aqua Nj - Hamilton Square (NJ): 16 EPA Violations. https://zipcheckup.com/water-system/nj1103001/
BibTeX
@misc{zipcheckup-water-system-nj1103001,
  author = {{ZipCheckup}},
  title  = {{Aqua Nj - Hamilton Square (NJ): 16 EPA Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/nj1103001/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report →

3

Contact your utility

Aqua Nj - Hamilton Square (EPA ID: NJ1103001) - request the latest Consumer Confidence Report or ask about specific contaminants.

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