Mount Vernon Water Department
EPA ID: NY5903441 · 73,893 people served · 12 ZIP codes
EPA monitoring data for Mount Vernon Water Department shows an unblemished five-year compliance history — no violations of any kind have been recorded for this utility, which supplies water to approximately 73,893 people, covering every reporting cycle without a single MCL exceedance or monitoring lapse.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Mount Vernon Water Department Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Mount Vernon Water Department serves a community with a median household income of $78,576 and an estimated 360,573 residents across its service area. Approximately 92% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 44% 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?
Mount Vernon Water Department'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.
About 2% of homes in Bronx County, New York rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in New York
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
MOUNT VERNON WATER DEPARTMENT (EPA ID: NY5903441) is a community water system in New York that serves approximately 73,893 people from surface water sources.
This system provides water to 12 ZIP codes across 4 communities.
Average Home Safety Score: B (78/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 10550 | 0.00249 mg/L | No | N/A |
| 10551 | 0.00249 mg/L | No | N/A |
| 10552 | 0.00249 mg/L | No | N/A |
| 10553 | 0.00249 mg/L | No | N/A |
| 10557 | 0.00249 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
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: 6 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 6 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
- 10461 — Bronx
- 10466 — Bronx
- 10469 — Bronx
- 10470 — Bronx
- 10475 — Bronx
- 10550 — Mount Vernon
- 10551 — Mount Vernon
- 10552 — Mount Vernon
- 10553 — Mount Vernon
- 10557 — Mount Vernon
- 10708 — Bronxville
- 10803 — Pelham
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Mount Vernon Water Department (NY5903441) on EPA.gov.
Frequently Asked Questions
Is Mount Vernon Water Department water safe to drink?
Based on EPA records, Mount Vernon Water Department has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Mount Vernon Water Department serve?
Mount Vernon Water Department serves approximately 73,893 people across 12 ZIP codes in New York.
Where does Mount Vernon Water Department get its water?
The primary water source is surface water.
Contact Your Water Utility
Public-record contact information for the water utility serving this system. Use these channels to request water quality reports, ask about service, or report issues directly.
Contact information from CITY OF MOUNT VERNON BOARD OF WATER SUPPLY Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility, does not act as its agent, and does not provide customer support for it. Contact details shown are public-record information from CCR filings. For service issues, contact the utility directly using the information above.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: CITY OF MOUNT VERNON BOARD OF WATER SUPPLY Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
The reservoirs of the Catskill / Delaware watersheds west of the Hudson are in a mountainous rural area and are relatively deep with little development along their shorelines. The main water quality concern associated with land cover is agriculture, which can contribute microbial contaminants, pesticides, and algae producing nutrients. There are also some potential contamination concerns associated with residential lands and associated wastewater discharges.
Treatment regime
How this utility classifies its treatment process and what each reported treatment chemical does.
Treatment chemicals and what each one does
Chemical names are reported verbatim by the utility. Purpose categories are ZipCheckup annotations based on standard drinking-water treatment practice.
Watershed exposure sources reported
Land-use and natural conditions identified in the utility's source-water assessment as potential contamination sources upstream of treatment.
Treatment classification and chemical list sourced from CITY OF MOUNT VERNON BOARD OF WATER SUPPLY Consumer Confidence Report.
Treatment intensity is a ZipCheckup-derived classification based on the chemicals and processes the utility reports. Chemicals and contamination sources are taken verbatim from the utility's CCR filing. Routine federal monitoring and contaminant testing shown elsewhere on this page determine whether the water meets safety standards, not the treatment classification.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
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 →
PFAS Substances Detected in This System
This water system's Consumer Confidence Report disclosed the following PFAS compounds. Levels are from the utility's most recent reporting cycle.
In April 2024, EPA finalized the first National Primary Drinking Water Regulation for six PFAS. Public water systems have until 2029 to comply. EPA — PFAS regulation overview →
Source: Consumer Confidence Report disclosed by CITY OF MOUNT VERNON BOARD OF WATER SUPPLY.
ZipCheckup is not affiliated with this water utility. PFAS detection data is sourced from public Consumer Confidence Reports filed by the utility itself.
The Mount Vernon Board of Water Supply has initiated the Lead Service Line Program in compliance with federal and state partners for reporting requirements. The community engagement for inventory reporting of services lines is being conducted throughout the city. The comprehensive program in conjunction with NYSDOH and consultants. Mount Vernon will be updating our Back Flow Program. Residents can view the service line inventory by visiting the City of Mount Vernon's website and navigating to the Lead Service Line Replacement Program page. Direct Website Link: https://cmvny.com/865/Lead-Service-Line-Replacement-Program
Lead Service Line Replacement Tracker
This water utility's lead service line (LSL) replacement program is tracked from public Consumer Confidence Report filings. Email signup notifies subscribers when the utility files an updated replacement plan or progress milestone.
CITY OF MOUNT VERNON BOARD OF WATER SUPPLY
ZipCheckup is not affiliated with this water utility. LSL replacement-program data is sourced from public CCR filings published by the utility. Subscription notifications are based on automated parsing of subsequent CCR releases.
Learn more about Lead and Copper Rule replacement requirements →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
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.