Malden Water Division (mwra)
EPA ID: MA3165000 · 66,263 people served · 3 ZIP codes
ZipCheckup's reading of EPA records for Malden Water Division (mwra) (MA3165000): 1 violation recorded with unresolved status in the SDWIS data used. Looking at the EPA enforcement file for Malden Water Division (mwra), 1 violation is listed as unresolved as of its reporting date; the utility's service area includes approximately 66,263 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Malden Water Division (mwra) Source: EPA SDWIS service area boundaries.
Service area boundary - average Home Safety grade of mapped ZIPs: C
Demographics of ZIP Codes Served
The ZIP codes associated with Malden Water Division (mwra) have a median household income of $80,948 and about 174,694 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 79% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Malden Water Division (mwra)'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 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 1 detection recorded.
Comparable Water Systems
Similar-sized systems in Massachusetts
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
Malden Water Division (mwra) (EPA ID: MA3165000) is a community water system in Massachusetts that serves approximately 66,263 people from surface water sources.
This system provides water to 3 ZIP codes across 3 communities.
ZIP-Area Home Safety Context: C (59/100)
This is the average Home Safety Score for 1 of 3 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: 0 resolved, 0 archived, 0 addressed, and 1 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 |
|---|---|---|---|
| June 8, 2022 | Consumer Confidence Rule | 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 |
|---|---|---|---|
| Consumer Confidence Rule | Other (notice or report rule) | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0097 mg/L | No | 2026-06-30 |
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
2 of 3 ZIP records with known zones are in EPA Radon Zone 1. 1 of 3 ZIP records with known zones is in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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 MA 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 available EPA compliance records for Malden Water Division (mwra) (MA3165000) on EPA.gov.
Frequently Asked Questions
Is Malden Water Division (mwra) water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Malden Water Division (mwra) serve?
Malden Water Division (mwra) serves approximately 66,263 people across 3 ZIP codes in Massachusetts.
Where does Malden Water Division (mwra) get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: No PFAS Reported Above Reporting Levels
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were reported above UCMR5 minimum reporting levels.
MA enforces a limit of 20 ppt for the combined sum of six PFAS (PFOA, PFOS, PFHxS, PFNA, PFHpA and PFDA). The table shows each compound's highest result, which can come from different samples, so it is not compared with that combined limit; the water system's compliance reports give the combined result.
EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Malden Water Division (mwra) (MA): 1 EPA Violation. https://zipcheckup.com/water-system/ma3165000/
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title = {{Malden Water Division (mwra) (MA): 1 EPA Violation}},
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url = {https://zipcheckup.com/water-system/ma3165000/}
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What You Can Do
Test your water
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Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Malden Water Division (mwra) (EPA ID: MA3165000) - request the latest Consumer Confidence Report or ask about specific contaminants.