Public water system · NM3511101
ActiveLost Horizon Coop Association
At a glance
Lost Horizon Coop Association (PWSID NM3511101) is an active community water system in Bernalillo County, New Mexico. It reports serving 95 people through 31 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
95
Service connections
31
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Lost Horizon Coop Association compare with other water systems in Bernalillo County?
By EPA's size categories, Lost Horizon Coop Association 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 Lost Horizon Coop Association 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 Lost Horizon Coop Association?
EPA lists Lost Horizon Coop Association as privately owned. 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. 60 of the 82 active systems in Bernalillo County (73%) are also privately owned.
Does Lost Horizon Coop Association have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2025. The violations listed here began between January 2021 and August 2025. By type: 7 public notice, recordkeeping or other and 5 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (5 of them). EPA lists 10 as resolved and 2 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 |
|---|---|---|---|---|
| 2025-08-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2024-05-25 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2024-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2022-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2022-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2022-06-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | 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.
Lost Horizon Coop Association: frequently asked questions
Who runs Lost Horizon Coop Association?
Lost Horizon Coop Association (PWSID NM3511101) is a community water system privately owned. It is regulated by the NM state drinking water program.
How many people does Lost Horizon Coop Association serve?
Lost Horizon Coop Association reports serving 95 people through 31 service connections in Bernalillo County, New Mexico.
Where does Lost Horizon Coop Association 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 Lost Horizon Coop Association have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 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 Lost Horizon Coop Association'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, none is health-based, and the most recent began in August 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 Lost Horizon Coop Association's water quality report?
As a community water system, Lost Horizon Coop Association 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, “Lost Horizon Coop Association, PWSID NM3511101, New Mexico”, https://aquacensus.com/water-systems/new-mexico/lost-horizon-coop-association-nm3511101 (data as of October 1, 2026).