La Mesa Water Coop
EPA ID: NM3500123 · 650 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for La Mesa Water Coop (NM3500123): no drinking-water violations recorded since 2021. Zero violations are listed in EPA monitoring data for La Mesa Water Coop; a count of records like this is not a water-quality test for the 650 residents it serves.
Data: EPA SDWIS
Service Area Map
Coverage area for La Mesa Water Coop Source: EPA SDWIS service area boundaries.
Service area boundary - average Home Safety grade of mapped ZIPs: C
Demographics of ZIP Codes Served
The ZIP codes associated with La Mesa Water Coop have a median household income of $86,794 and about 15,649 residents live in those ZIP codes (Census; not the number of people this system supplies).
Environmental Justice Note: On average, 41% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). 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?
La Mesa Water Coop's water is classified in EPA records as a groundwater source. 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 70th percentile nationally for proximity to wastewater discharge points.
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
La Mesa Water Coop (EPA ID: NM3500123) is a community water system in New Mexico that serves approximately 650 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
ZIP-Area Home Safety Context: C (67/100)
This is the average Home Safety Score for 1 of 2 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0006 mg/L | No | 2022-12-31 |
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
2 of 2 ZIP records with known zones are in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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 available EPA compliance records for La Mesa Water Coop (NM3500123) on EPA.gov.
Frequently Asked Questions
Is La Mesa Water Coop water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for La Mesa Water Coop in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does La Mesa Water Coop serve?
La Mesa Water Coop serves approximately 650 people across 2 ZIP codes in New Mexico.
Where does La Mesa Water Coop get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). La Mesa Water Coop Water Quality Report, NM. https://zipcheckup.com/water-system/nm3500123/
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author = {{ZipCheckup}},
title = {{La Mesa Water Coop Water Quality Report, NM}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/nm3500123/}
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What You Can Do
Test your water
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Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
La Mesa Water Coop (EPA ID: NM3500123) - request the latest Consumer Confidence Report or ask about specific contaminants.