San Antonio Mdwca
EPA ID: NM3573928 · 1,344 people served · 2 ZIP codes
ZipCheckup's reading of EPA SDWIS for San Antonio Mdwca (NM3573928): 1 unresolved EPA violation on record. In the current EPA monitoring period, San Antonio Mdwca has 1 violation still listed as unresolved, with the utility supplying water to approximately 1,344 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for San Antonio Mdwca Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The San Antonio Mdwca serves a community with a median household income of $54,032 and an estimated 9,475 residents across its service area. Approximately 68% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 83% 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?
San Antonio 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.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.
Superfund Proximity Note: This service area ranks in the 70th 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 San Antonio Mdwca compares to EPA limits
What This Means For You
Lead and Copper Rule at 3 mg/L exceeds the EPA maximum of mg/L.
Total Coliform at 1 presence exceeds the EPA maximum of presence.
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Revised Total Coliform Rule 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
San Antonio Mdwca (EPA ID: NM3573928) is a community water system in New Mexico that serves approximately 1,344 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: 5 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 |
|---|---|---|---|
| February 25, 2026 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| January 1, 2025 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| January 1, 2025 | Revised Total Coliform Rule | Non-health-based | Resolved |
| June 24, 2021 | Lead and Copper Rule | Non-health-based | Resolved |
| March 29, 2021 | Lead and Copper Rule | Non-health-based | Resolved |
| March 12, 2021 | Total Coliform | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Lead and Copper Rule | Treatment Failure | 3 | No |
| Total Coliform | Microbiological | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
| Revised Total Coliform Rule | Microbiological | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.002 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.
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 San Antonio Mdwca (NM3573928) on EPA.gov.
Frequently Asked Questions
Is San Antonio Mdwca 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 San Antonio Mdwca serve?
San Antonio Mdwca serves approximately 1,344 people across 2 ZIP codes in New Mexico.
Where does San Antonio Mdwca get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). San Antonio Mdwca (NM): 6 EPA Violations. https://zipcheckup.com/water-system/nm3573928/
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author = {{ZipCheckup}},
title = {{San Antonio Mdwca (NM): 6 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/nm3573928/}
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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 →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
San Antonio Mdwca (EPA ID: NM3573928) - request the latest Consumer Confidence Report or ask about specific contaminants.