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
Service Area Map
Coverage area for Aqua Nj - Hamilton Square Source: EPA SDWIS service area boundaries.
Service area boundary - Grade F
Service Area Demographics
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?
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.
Superfund Proximity Note: This service area ranks in the 66th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Detected Contaminants
How Aqua Nj - Hamilton Square compares to EPA limits
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).
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
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
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.
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
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 FilterFree 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.
- 08501 - Allentown
- 08514 - Cream Ridge
- 08515 - Chesterfield
- 08520 - Hightstown
- 08561 - Windsor
- 08619 - Trenton
- 08620 - Trenton
- 08690 - Trenton
- 08691 - Trenton
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.
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 →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Aqua Nj - Hamilton Square (NJ): 16 EPA Violations. https://zipcheckup.com/water-system/nj1103001/
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author = {{ZipCheckup}},
title = {{Aqua Nj - Hamilton Square (NJ): 16 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/nj1103001/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Aqua Nj - Hamilton Square (EPA ID: NJ1103001) - request the latest Consumer Confidence Report or ask about specific contaminants.