San Juan Mdwca
EPA ID: NM3519125 · 136 people served · 2 ZIP codes
EPA monitoring data for San Juan Mdwca shows an unblemished five-year compliance history — no violations of any kind have been recorded for this utility, which supplies water to approximately 136 people, covering every reporting cycle without a single MCL exceedance or monitoring lapse.
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 1 (2021) to 2 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for San Juan Mdwca Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The San Juan Mdwca serves a community with a median household income of $28,801 and an estimated 2,131 residents across its service area. Approximately 71% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 100% 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 Juan 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.
About 4% of homes in San Miguel County, New Mexico 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 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 Juan Mdwca (EPA ID: NM3519125) is a community water system in New Mexico that serves approximately 136 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
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
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for San Juan Mdwca (NM3519125) on EPA.gov.
Frequently Asked Questions
Is San Juan Mdwca water safe to drink?
Based on EPA records, San Juan Mdwca has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does San Juan Mdwca serve?
San Juan Mdwca serves approximately 136 people across 2 ZIP codes in New Mexico.
Where does San Juan Mdwca get its water?
The primary water source is groundwater.