Public water system · 063568423

Active

Cochiti Lake

At a glance

Cochiti Lake (PWSID 063568423) is an active community water system in New Mexico. It reports serving 450 people through 264 service connections. Its primary water source is groundwater, and EPA lists it as Native American-owned. EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in November 2025.

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

Population served

450

Service connections

264

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSID063568423

System typeCommunity water system

Activity statusActive

Population served450

Service connections264

Primary water sourceGroundwater

Owner typeNative American

Primacy agencyEPA Region 06

City served—

StateNew Mexico

ZIP—

County—

How does Cochiti Lake compare with other water systems in New Mexico?

By EPA's size categories, Cochiti Lake is a very small system (500 people or fewer). 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 Cochiti Lake 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 Cochiti Lake?

EPA lists Cochiti Lake as Native American-owned. The EPA Region 06 is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act.

Does Cochiti Lake have drinking water violations?

EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in November 2025. The violations listed here began between January 2011 and November 2025. By type: 3 monitoring, 3 required treatment not met, 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 7 as resolved, 1 as archived and 1 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. 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
2025-11-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Archived
2024-10-08	Required treatment not metFailure To Address Deficiency · code 45	Groundwater Rulecode 0700	Yes	Unaddressed
2021-05-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-04-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2015-10-26	Required treatment not metFailure To Address Deficiency · code 45	Groundwater Rulecode 0700	Yes	Resolved
2015-09-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2013-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2013-02-14	Required treatment not metFailure To Address Deficiency · code 45	Groundwater Rulecode 0700	Yes	Resolved
2011-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitrate-Nitritecode 1038	No	Resolved

All 9 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.

Cochiti Lake: frequently asked questions

Who runs Cochiti Lake?

Cochiti Lake (PWSID 063568423) is a community water system Native American-owned. It is regulated by the EPA Region 06.

How many people does Cochiti Lake serve?

Cochiti Lake reports serving 450 people through 264 service connections in New Mexico.

Where does Cochiti Lake 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 Cochiti Lake have any drinking water violations?

EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in November 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 Cochiti Lake'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 9 violations for this system; 3 are health-based, and the most recent began in November 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the EPA Region 06.

Where can I find Cochiti Lake's water quality report?

As a community water system, Cochiti Lake 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 New Mexico

Water system	County	Population served	Type	Source
Albuquerque Water System	Bernalillo	560,326	Community	Surface water
Rio Rancho Water & Ww Services	Sandoval	107,350	Community	Purchased surface water
Las Cruces Municipal Water System	Dona Ana	98,175	Community	Groundwater
Santa Fe Water System (City of)	Santa Fe	90,810	Community	Surface water
Roswell Municipal Water System	Chaves	54,025	Community	Groundwater
Farmington Water System	San Juan	47,655	Community	Surface water

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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, “Cochiti Lake, PWSID 063568423, New Mexico”, https://aquacensus.com/water-systems/new-mexico/cochiti-lake-063568423 (data as of October 1, 2026).