Mayhill Mdwca
EPA ID: NM3513819 · 143 people served · 2 ZIP codes
ZipCheckup's reading of EPA SDWIS for Mayhill Mdwca (NM3513819): 1 unresolved EPA violation on record. Where compliant utilities carry no open actions, Mayhill Mdwca shows 1 active EPA violation in the federal database for a service population of approximately 143.
Data: EPA SDWIS
Service Area Map
Coverage area for Mayhill Mdwca Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Mayhill Mdwca serves a community with a median household income of $73,144 and an estimated 3,297 residents across its service area. Approximately 49% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 56% 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?
Mayhill Mdwca'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.
Infrastructure Risk
Detected Contaminants
How Mayhill Mdwca compares to EPA limits
What This Means For You
Contaminant 0700 at 8 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Total Coliform at 1 presence exceeds the EPA maximum of presence.
Comparable Water Systems
Similar-sized systems in New Mexico
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
Mayhill Mdwca (EPA ID: NM3513819) is a community water system in New Mexico that serves approximately 143 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 14 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 |
|---|---|---|---|
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| November 23, 2024 | Contaminant 0700 | Health-based | Resolved |
| November 23, 2024 | Contaminant 0700 | Health-based | Resolved |
| October 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| April 14, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| August 28, 2022 | Lead and Copper Rule | Non-health-based | Resolved |
| July 1, 2022 | Surface Water Treatment Rule | Non-health-based | Resolved |
| January 7, 2022 | Contaminant 0700 | Health-based | Unaddressed (current) |
| January 7, 2022 | Contaminant 0700 | Health-based | Resolved |
| January 7, 2022 | Contaminant 0700 | Health-based | Resolved |
| January 7, 2022 | Contaminant 0700 | Health-based | Resolved |
| January 7, 2022 | Contaminant 0700 | Health-based | Resolved |
| January 7, 2022 | Contaminant 0700 | Health-based | Resolved |
| August 26, 2021 | Total Coliform | Non-health-based | Resolved |
| July 1, 2021 | Surface Water Treatment 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 |
|---|---|---|---|
| Contaminant 0700 | Other Violation | 8 | Yes |
| Surface Water Treatment Rule | Treatment Failure | 4 | No |
| Lead and Copper Rule | Treatment Failure | 2 | 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 |
|---|---|---|
| 0.00078 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 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: 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 NM 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 the full compliance record for Mayhill Mdwca (NM3513819) on EPA.gov.
Frequently Asked Questions
Is Mayhill Mdwca water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current health-based noncompliance record for Mayhill Mdwca. Review the utility's current notices and EPA record. This system-level compliance history cannot determine conditions at a specific tap.
How many people does Mayhill Mdwca serve?
Mayhill Mdwca serves approximately 143 people across 2 ZIP codes in New Mexico.
Where does Mayhill Mdwca get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Mayhill Mdwca (NM): 8 Health Violations. https://zipcheckup.com/water-system/nm3513819/
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author = {{ZipCheckup}},
title = {{Mayhill Mdwca (NM): 8 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/nm3513819/}
}
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
Mayhill Mdwca (EPA ID: NM3513819) - request the latest Consumer Confidence Report or ask about specific contaminants.