Mcwa
EPA ID: NY2701047 · 496,753 people served · 72 ZIP codes
EPA compliance records for Mcwa show 23 unresolved violations — findings that remain open and are tracked at the federal level, covering a service territory of approximately 496,753 people.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 2 (2021) to 116 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Mcwa Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The Mcwa serves a community with a median household income of $80,376 and an estimated 821,819 residents across its service area. Approximately 75% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 35% 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?
Mcwa'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 1% of homes in Genesee 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
Detected Contaminants
How Mcwa compares to EPA limits
What This Means For You
Lead at 2 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.
Total Trihalomethanes (TTHM) at 6 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Consumer Confidence Report Rule at 12 mg/L exceeds the EPA maximum of mg/L.
Stage 1 DBP Rule at 6 mg/L exceeds the EPA maximum of mg/L.
Contaminant 1032 at 5 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. 3 detections recorded.
Lead was detected in this water system. reverse osmosis filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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
MCWA (EPA ID: NY2701047) is a community water system in New York that serves approximately 496,753 people from surface water sources.
This system provides water to 72 ZIP codes across 29 communities.
Average Home Safety Score: C (66/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| September 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| August 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| July 1, 2025 | Unknown | Monitoring | Resolved |
| April 1, 2025 | Unknown | Monitoring | Resolved |
| March 1, 2025 | Unknown | Monitoring | Resolved |
| February 1, 2025 | Unknown | Monitoring | Resolved |
| January 1, 2025 | Unknown | Monitoring | Resolved |
| January 1, 2025 | Stage 1 DBP Rule | Health-based | Unresolved |
| December 22, 2024 | Stage 2 DBP Rule | Monitoring | Unresolved |
| December 1, 2024 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| December 1, 2024 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| December 1, 2024 | Unknown | Monitoring | Resolved |
| November 1, 2024 | Unknown | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Unresolved |
| October 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 1, 2024 | Contaminant 1028 | Health-based | Resolved |
| October 1, 2024 | Unknown | Monitoring | Resolved |
| October 1, 2024 | Stage 1 DBP Rule | Monitoring | Resolved |
| September 10, 2024 | Stage 1 DBP Rule | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 12 | Yes |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 6 | No |
| Stage 1 DBP Rule | Treatment Failure | 6 | Yes |
| Contaminant 1032 | Other Violation | 5 | Yes |
| Contaminant 2049 | Other Violation | 4 | No |
| Contaminant 2829 | Other Violation | 3 | No |
| Contaminant 2959 | Other Violation | 3 | No |
| Contaminant 1028 | Other Violation | 2 | Yes |
| Lead | Inorganic | 2 | No |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Nickel | Inorganic | 1 | No |
| Contaminant 1045 | Other Violation | 1 | No |
| Contaminant 2806 | Other Violation | 1 | No |
| Contaminant 3001 | Other Violation | 1 | No |
| Radium-228 | Radionuclides | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 14543 | 0.019 mg/L | Yes | N/A |
| 14602 | 0.0047 mg/L | No | N/A |
| 14603 | 0.0047 mg/L | No | N/A |
| 14606 | 0.0047 mg/L | No | N/A |
| 14609 | 0.0047 mg/L | No | N/A |
| 14610 | 0.0047 mg/L | No | N/A |
| 14612 | 0.0047 mg/L | No | N/A |
| 14615 | 0.0047 mg/L | No | N/A |
| 14616 | 0.0047 mg/L | No | N/A |
| 14617 | 0.0047 mg/L | No | N/A |
| 14618 | 0.0047 mg/L | No | N/A |
| 14620 | 0.0047 mg/L | No | N/A |
| 14621 | 0.0047 mg/L | No | N/A |
| 14622 | 0.0047 mg/L | No | N/A |
| 14623 | 0.0047 mg/L | No | N/A |
| 14624 | 0.0047 mg/L | No | N/A |
| 14625 | 0.0047 mg/L | No | N/A |
| 14626 | 0.0047 mg/L | No | N/A |
| 14638 | 0.0047 mg/L | No | N/A |
| 14639 | 0.0047 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate 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: 42 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 30 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.
This system serves 72 ZIP codes:
14416 · 14420 · 14428 · 14445 · 14450 14464 · 14467 · 14468 · 14469 · 14470 14472 · 14475 · 14476 · 14482 · 14502 14506 · 14511 · 14514 · 14515 · 14519 14526 · 14534 · 14543 · 14546 · 14559 14564 · 14580 · 14586 · 14602 · 14603 14604 · 14605 · 14606 · 14607 · 14608 14609 · 14610 · 14611 · 14612 · 14613 14614 · 14615 · 14616 · 14617 · 14618 14619 · 14620 · 14621 · 14622 · 14623 14624 · 14625 · 14626 · 14627 · 14638 14639 · 14642 · 14643 · 14644 · 14645 14646 · 14647 · 14649 · 14650 · 14651 14652 · 14653 · 14664 · 14673 · 14683 14692 · 14694
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Mcwa (NY2701047) on EPA.gov.
Frequently Asked Questions
Is Mcwa water safe to drink?
Mcwa has recorded 4 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does Mcwa serve?
Mcwa serves approximately 496,753 people across 72 ZIP codes in New York.
Where does Mcwa get its water?
The primary water source is surface water.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: Monroe County Water Authority - Shoremont Water Treatment Plant Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
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.
Treatment classification and chemical list sourced from Monroe County Water Authority - Shoremont Water Treatment Plant 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 →
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.
Aesthetic water quality
These measurements describe the look, taste, and feel of the water this utility delivers. They are not contaminant violations — they sit alongside federal Secondary Maximum Contaminant Levels (SMCLs) which the EPA publishes as non-enforceable guidance.
Aesthetic measurements from Monroe County Water Authority - Shoremont Water Treatment Plant Consumer Confidence Report.
Aesthetic measurements are reported by the utility from its annual sampling. EPA Secondary MCLs are advisory thresholds — values outside them indicate aesthetic concerns such as taste or appearance, not health violations. Federal contaminant testing is shown in the sections above.
Hard water detected in Monroe County Water Authority - Shoremont Water Treatment Plant
Your utility reported water hardness of 123 ppm CaCO₃ (7.2 grains per gallon) in its most recent Consumer Confidence Report. This is in the moderately hard range and may cause scale buildup, reduced appliance lifespan, and dry skin or hair.
There are three common approaches to treating hard water: salt-based ion-exchange softeners (most effective, require salt refills), salt-free conditioners (lower maintenance, scale prevention only), and reverse osmosis at the kitchen sink (cooking and drinking water only). Aquasana, EcoWater, Pelican, and SpringWell are among the major US brands.
Paid Partner. ZipCheckup earns commission on Aquasana purchases. We do not test water or verify product effectiveness for specific hardness levels — manufacturer claims are theirs alone. Consult a certified water-quality professional for personalized advice.
Hardness data parsed from this utility's most recent Consumer Confidence Report. Severity bands per USGS hard water classification.
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.
- #17 / 100 Highest Exposure Burden (U.S.)
- #16 / 22 Most Unresolved Health Violations (New York)
- #4 / 50 Highest Exposure Burden (New York)
Frequently Asked Questions
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
Mcwa (EPA ID: NY2701047) — request the latest Consumer Confidence Report or ask about specific contaminants.