Public water system · NM3525332
ActiveLos Lunas Water System
At a glance
Los Lunas Water System (PWSID NM3525332) is an active community water system in Valencia County, New Mexico. It reports serving 19,400 people through 7,830 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, one is health-based, and the most recent began in November 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
19,400
Service connections
7,830
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Los Lunas Water System compare with other water systems in Valencia County?
By EPA's size categories, Los Lunas Water System is a large system (10,001 to 100,000 people). Valencia County has 28 active public water systems, and Los Lunas Water System is the largest of them by population served. Its population served is about 11 times the county average of 1,839 people per system, and accounts for 38% of the 51,498 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 Los Lunas Water System is about 189% above 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 Los Lunas Water System?
EPA lists Los Lunas Water System 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. 7 of the 28 active systems in Valencia County (25%) are also owned by a local government.
Does Los Lunas Water System have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2022. The violations listed here began between January 2018 and November 2022. By type: 6 public notice, recordkeeping or other, 3 monitoring and reporting, 2 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Public Notice (5 of them). EPA lists 12 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-11-05 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2019-09-22 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-02-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-01-18 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2018-06-13 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-02-11 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2018-01-14 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | 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.
Los Lunas Water System: frequently asked questions
Who runs Los Lunas Water System?
Los Lunas Water System (PWSID NM3525332) is a community water system owned by a local government. It is regulated by the NM state drinking water program.
How many people does Los Lunas Water System serve?
Los Lunas Water System reports serving 19,400 people through 7,830 service connections in Valencia County, New Mexico.
Where does Los Lunas Water System 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 Los Lunas Water System have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2022. 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 Los Lunas Water System'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, one is health-based, and the most recent began in November 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the NM state drinking water program.
Where can I find Los Lunas Water System's water quality report?
As a community water system, Los Lunas Water System 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 Valencia County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Belen Water System | Valencia | 10,830 | Community | Groundwater |
| Rio Communities Water System | Valencia | 5,513 | Community | Groundwater |
| Rio Del Oro Water System | Valencia | 4,387 | Community | Groundwater |
| Bosque Farms Water Supply System | Valencia | 4,367 | Community | Groundwater |
| Meadow Lake Water System | Valencia | 2,760 | Community | Groundwater |
| Monterey Water Company Inc.. | Valencia | 1,472 | Community | 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, “Los Lunas Water System, PWSID NM3525332, New Mexico”, https://aquacensus.com/water-systems/new-mexico/los-lunas-water-system-nm3525332 (data as of October 1, 2026).