Public water system · NM3503401
ActivePajarito Mesa Mdwca
At a glance
Pajarito Mesa Mdwca (PWSID NM3503401) is an active community water system in Bernalillo County, New Mexico. It reports serving 175 people through 1 service connection. Its primary water source is purchased surface water, 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 October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
175
Service connections
1
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Pajarito Mesa Mdwca compare with other water systems in Bernalillo County?
By EPA's size categories, Pajarito Mesa Mdwca is a very small system (500 people or fewer). Bernalillo County has 82 active public water systems. Its population served is well below the county average of 7,846 people per system, and accounts for less than 0.1% of the 643,386 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 Pajarito Mesa 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 47 New Mexico systems (4%) list purchased surface water as their primary source.
Who owns and regulates Pajarito Mesa Mdwca?
EPA lists Pajarito Mesa 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. 19 of the 82 active systems in Bernalillo County (23%) are also owned by a local government.
Does Pajarito Mesa Mdwca have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2025. The violations listed here began between April 2022 and October 2025. By type: 8 public notice, recordkeeping or other, 2 monitoring, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Public Notice (5 of them). EPA lists 8 as resolved and 4 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 |
|---|---|---|---|---|
| 2025-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2025-02-21 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2024-11-08 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2023-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2023-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-06-12 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-05-08 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-04-24 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | 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.
Pajarito Mesa Mdwca: frequently asked questions
Who runs Pajarito Mesa Mdwca?
Pajarito Mesa Mdwca (PWSID NM3503401) is a community water system owned by a local government. It is regulated by the NM state drinking water program.
How many people does Pajarito Mesa Mdwca serve?
Pajarito Mesa Mdwca reports serving 175 people through 1 service connection in Bernalillo County, New Mexico.
Where does Pajarito Mesa Mdwca get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Pajarito Mesa Mdwca 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 October 2025. 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 Pajarito Mesa 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, one is health-based, and the most recent began in October 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the NM state drinking water program.
Where can I find Pajarito Mesa Mdwca's water quality report?
As a community water system, Pajarito Mesa 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 Bernalillo County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Albuquerque Water System | Bernalillo | 560,326 | Community | Surface water |
| University of New Mexico | Bernalillo | 35,000 | Community | Purchased surface water |
| Kirtland Air Force Base | Bernalillo | 22,500 | Community | Groundwater |
| Sandia Peak Utility | Bernalillo | 6,079 | Community | Groundwater |
| Pilot Travel Center #1106 | Bernalillo | 2,075 | Non-transient non-community | Groundwater |
| Veterans Administration Hcs New Mexico | Bernalillo | 2,000 | Non-transient non-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, “Pajarito Mesa Mdwca, PWSID NM3503401, New Mexico”, https://aquacensus.com/water-systems/new-mexico/pajarito-mesa-mdwca-nm3503401 (data as of October 1, 2026).