Public water system · NM3500125
ActiveIlfeld Mdwca
At a glance
Ilfeld Mdwca (PWSID NM3500125) is an active community water system in San Miguel County, New Mexico. It reports serving 400 people through 110 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
400
Service connections
110
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Ilfeld Mdwca compare with other water systems in San Miguel County?
By EPA's size categories, Ilfeld Mdwca is a very small system (500 people or fewer). San Miguel County has 42 active public water systems. Its population served is about 29% below the county average of 564 people per system, and accounts for 1.7% of the 23,678 people reported by systems filed under the county. Across New Mexico, the 1,165 active systems average 1,885 people each. Nationally, the average active community water system reports serving 6,703 people, so Ilfeld Mdwca is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. New Mexico has 645 active community water systems, 55% of the state's 1,165 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,009 New Mexico systems (87%) list groundwater as their primary source.
Who owns and regulates Ilfeld Mdwca?
EPA lists Ilfeld Mdwca as owned by a local government. The NM state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 26 of the 42 active systems in San Miguel County (62%) are also owned by a local government.
Does Ilfeld Mdwca have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2026. The violations listed here began between June 2016 and February 2026. By type: 6 public notice, recordkeeping or other, 3 required treatment not met, 2 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Public Notice (3 of them). EPA lists 9 as resolved and 3 as unaddressed. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-02-14 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Unaddressed |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2024-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2019-03-30 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Resolved |
| 2019-02-14 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-10-06 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-09-30 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2018-07-05 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2016-06-02 | Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5A | Revised Total Coliform Rulecode 8000 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Ilfeld Mdwca: frequently asked questions
Who runs Ilfeld Mdwca?
Ilfeld Mdwca (PWSID NM3500125) is a community water system owned by a local government. It is regulated by the NM state drinking water program.
How many people does Ilfeld Mdwca serve?
Ilfeld Mdwca reports serving 400 people through 110 service connections in San Miguel County, New Mexico.
Where does Ilfeld Mdwca get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Ilfeld Mdwca have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2026. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Ilfeld Mdwca's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the NM state drinking water program.
Where can I find Ilfeld Mdwca's water quality report?
As a community water system, Ilfeld Mdwca must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in San Miguel County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Las Vegas (City of) | San Miguel | 14,530 | Community | Surface water |
| Pecos Water System | San Miguel | 2,133 | Community | Groundwater |
| Pendaries Mdwca | San Miguel | 500 | Community | Groundwater |
| Conchas Dam State Park Northside | San Miguel | 450 | Transient non-community | Surface water |
| East Pecos Mdwca | San Miguel | 413 | Community | Groundwater |
| Pendaries Rv Resort | San Miguel | 405 | Non-transient non-community | Purchased groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Ilfeld Mdwca, PWSID NM3500125, New Mexico”, https://aquacensus.com/water-systems/new-mexico/ilfeld-mdwca-nm3500125 (data as of October 1, 2026).