Public water system · NM3510609

Active

Pinos Altos Mdwca

At a glance

Pinos Altos Mdwca (PWSID NM3510609) is an active community water system in Grant County, New Mexico. It reports serving 348 people through 145 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in July 2019.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

348

Service connections

145

Primary source

GWP

Purchased groundwater

System type

CWS

Community water system

System record

PWSIDNM3510609

System typeCommunity water system

Activity statusActive

Population served348

Service connections145

Primary water sourcePurchased groundwater

Owner typeLocal government

Primacy agencyNM state drinking water program

City servedPinos Altos

StateNew Mexico

ZIP—

CountyGrant County

How does Pinos Altos Mdwca compare with other water systems in Grant County?

By EPA's size categories, Pinos Altos Mdwca is a very small system (500 people or fewer). Grant County has 28 active public water systems. Its population served is about 64% below the county average of 972 people per system, and accounts for 1.3% of the 27,216 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 Pinos Altos 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 groundwater means the system buys groundwater from another public water system rather than drawing its own. 62 New Mexico systems (5.3%) list purchased groundwater as their primary source.

Who owns and regulates Pinos Altos Mdwca?

EPA lists Pinos Altos 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. 14 of the 28 active systems in Grant County (50%) are also owned by a local government.

Does Pinos Altos Mdwca have drinking water violations?

EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in July 2019. The violations listed here began between January 2003 and July 2019. By type: 4 monitoring and reporting, 2 monitoring, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 8 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
2019-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2018-08-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2017-01-26	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2014-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2011-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2011-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2005-09-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2003-01-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved

All 8 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.

Pinos Altos Mdwca: frequently asked questions

Who runs Pinos Altos Mdwca?

Pinos Altos Mdwca (PWSID NM3510609) is a community water system owned by a local government. It is regulated by the NM state drinking water program.

How many people does Pinos Altos Mdwca serve?

Pinos Altos Mdwca reports serving 348 people through 145 service connections in Grant County, New Mexico.

Where does Pinos Altos Mdwca get its water?

EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.

Does Pinos Altos Mdwca have any drinking water violations?

EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in July 2019. 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 Pinos Altos 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. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in July 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the NM state drinking water program.

Where can I find Pinos Altos Mdwca's water quality report?

As a community water system, Pinos Altos 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 Grant County

Water system	County	Population served	Type	Source
Silver City Water System	Grant	14,400	Community	Groundwater
Bayard Municipal Water System	Grant	2,616	Community	Groundwater
Santa Clara Water System	Grant	1,682	Community	Groundwater
Hurley, Town of	Grant	1,577	Community	Purchased groundwater
Arenas Valley Mdwca	Grant	1,204	Community	Purchased groundwater
Freeport Mcmoran Chino Mines	Grant	1,050	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, “Pinos Altos Mdwca, PWSID NM3510609, New Mexico”, https://aquacensus.com/water-systems/new-mexico/pinos-altos-mdwca-nm3510609 (data as of October 1, 2026).