Public water system · NM3510324
ActiveLower Valley Water Users Association
At a glance
Lower Valley Water Users Association (PWSID NM3510324) is an active community water system in San Juan County, New Mexico. It reports serving 7,615 people through 2,984 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,615
Service connections
2,984
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Lower Valley Water Users Association compare with other water systems in San Juan County?
By EPA's size categories, Lower Valley Water Users Association is a medium system (3,301 to 10,000 people). San Juan County has 22 active public water systems, and Lower Valley Water Users Association is the 5th-largest of them by population served. Its population served is about 62% above the county average of 4,715 people per system, and accounts for 7.3% of the 103,721 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 Lower Valley Water Users Association is about 14% 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 37 New Mexico systems (3.2%) list surface water as their primary source.
Who owns and regulates Lower Valley Water Users Association?
EPA lists Lower Valley Water Users Association 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. 12 of the 22 active systems in San Juan County (55%) are also owned by a local government.
Does Lower Valley Water Users Association have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2020. The violations listed here began between October 2013 and January 2020. By type: 9 monitoring and reporting and 3 contaminant level above the legal limit. The contaminant or rule involved most often is Haloacetic acids (HAA5) (7 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 |
|---|---|---|---|---|
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Asbestoscode 1094 | No | Resolved |
| 2019-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2018-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2018-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2014-06-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2014-06-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2014-03-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2014-03-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2013-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2013-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2013-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2013-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | 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.
Lower Valley Water Users Association: frequently asked questions
Who runs Lower Valley Water Users Association?
Lower Valley Water Users Association (PWSID NM3510324) is a community water system owned by a local government. It is regulated by the NM state drinking water program.
How many people does Lower Valley Water Users Association serve?
Lower Valley Water Users Association reports serving 7,615 people through 2,984 service connections in San Juan County, New Mexico.
Where does Lower Valley Water Users Association get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Lower Valley Water Users Association have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2020. 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 Lower Valley Water Users 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, 3 are health-based, and the most recent began in January 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the NM state drinking water program.
Where can I find Lower Valley Water Users Association's water quality report?
As a community water system, Lower Valley Water Users 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 San Juan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Farmington Water System | San Juan | 47,655 | Community | Surface water |
| Aztec Domestic Water System | San Juan | 9,673 | Community | Surface water |
| Bloomfield Water Supply System | San Juan | 9,536 | Community | Surface water |
| Lee Hammond Water | San Juan | 8,817 | Community | Surface water |
| Morningstar Water System | San Juan | 5,694 | Community | Purchased surface water |
| Northstar Mdwca | San Juan | 3,784 | 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, “Lower Valley Water Users Association, PWSID NM3510324, New Mexico”, https://aquacensus.com/water-systems/new-mexico/lower-valley-water-users-association-nm3510324 (data as of October 1, 2026).