Madison Water Department
EPA ID: NJ1417001 ยท 15,820 people served ยท 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Madison Water Department (NJ1417001): 2 unresolved EPA violations on record. Right now, Madison Water Department shows 2 EPA violations marked active and unresolved - the provider continues to supply approximately 15,820 residents while each finding awaits closure.
Data: EPA SDWIS
Service Area Map
Coverage area for Madison Water Department Source: EPA SDWIS service area boundaries.
Service area boundary - Grade F
Service Area Demographics
The Madison Water Department serves a community with a median household income of $168,520 and an estimated 17,675 residents across its service area. Approximately 80% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
๐ง Where Does Your Water Come From?
Madison Water Department's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Superfund Proximity Note: This service area ranks in the 80th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How Madison Water Department compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 2 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Total Trihalomethanes (TTHM) at 2 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Total Coliform at 2 presence exceeds the EPA maximum of presence.
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 7 detections recorded. 2 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter โComparable 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
Madison Water Department (EPA ID: NJ1417001) is a community water system in New Jersey that serves approximately 15,820 people from groundwater sources.
This system serves ZIP code 07940 in Madison.
ZIP-Area Home Safety Context: F (37/100)
This is the average Home Safety Score for 1 of 1 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: 3 resolved, 2 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, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2025 | Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| July 1, 2025 | Total Trihalomethanes (TTHM) | Non-health-based | Resolved |
| January 1, 2025 | Haloacetic Acids (HAA5) | Non-health-based | Archived |
| January 1, 2025 | Total Trihalomethanes (TTHM) | Non-health-based | Archived |
| August 2, 2024 | Total Coliform | Non-health-based | Unaddressed (current) |
| August 16, 2023 | Total Coliform | Non-health-based | Unaddressed (current) |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | No |
| Total Coliform | Microbiological | 2 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.00255 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 $20โ$50 (DIY kit) ยท Professional inspection: $150โ$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking โ 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.
- 07940 - Madison
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Madison Water Department (NJ1417001) on EPA.gov.
Frequently Asked Questions
Is Madison Water Department 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 Madison Water Department serve?
Madison Water Department serves approximately 15,820 people across 1 ZIP code in New Jersey.
Where does Madison Water Department get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below 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) โ per-system federal sampling, 2023โ2025. EPA UCMR5 monitoring program โ
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Madison Water Department (NJ): 7 EPA Violations. https://zipcheckup.com/water-system/nj1417001/
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url = {https://zipcheckup.com/water-system/nj1417001/}
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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 โ
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report โ
Contact your utility
Madison Water Department (EPA ID: NJ1417001) - request the latest Consumer Confidence Report or ask about specific contaminants.