Public water system · NM3591010
ActiveSanta Rosa Lake
At a glance
Santa Rosa Lake (PWSID NM3591010) is an active transient non-community water system in Guadalupe County, New Mexico. It reports serving 150 people through 22 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by the federal government. EPA's records list 11 violations for this system; 6 are health-based, and the most recent began in March 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
22
Primary source
GWP
Purchased groundwater
System type
TNCWS
Transient non-community water system
System record
How does Santa Rosa Lake compare with other water systems in Guadalupe County?
By EPA's size categories, Santa Rosa Lake is a very small system (500 people or fewer). Guadalupe County has 11 active public water systems. Its population served is well below the county average of 540 people per system, and accounts for 2.5% of the 5,937 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 transient non-community water system reports serving 144 people, so Santa Rosa Lake is roughly in line with that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. New Mexico has 369 active transient non-community water systems, 32% 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 Santa Rosa Lake?
EPA lists Santa Rosa Lake as owned by the federal 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. 1 of the 11 active systems in Guadalupe County (9.1%) are also owned by the federal government.
Does Santa Rosa Lake have drinking water violations?
EPA's records list 11 violations for this system; 6 are health-based, and the most recent began in March 2025. The violations listed here began between February 1992 and March 2025. By type: 4 required treatment not met, 3 monitoring and reporting, 2 public notice, recordkeeping or other and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2025-03-23 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-08-07 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-08-07 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-08-07 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-08-07 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2007-08-27 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2007-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2000-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1992-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 11 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.
Santa Rosa Lake: frequently asked questions
Who runs Santa Rosa Lake?
Santa Rosa Lake (PWSID NM3591010) is a transient non-community water system owned by the federal government. It is regulated by the NM state drinking water program.
How many people does Santa Rosa Lake serve?
Santa Rosa Lake reports serving 150 people through 22 service connections in Guadalupe County, New Mexico.
Where does Santa Rosa Lake 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 Santa Rosa Lake have any drinking water violations?
EPA's records list 11 violations for this system; 6 are health-based, and the most recent began in March 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 Santa Rosa 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 11 violations for this system; 6 are health-based, and the most recent began in March 2025. For current results, consult EPA ECHO, or the NM state drinking water program.
Where can I find Santa Rosa Lake's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Santa Rosa Lake is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Guadalupe County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Santa Rosa Water Supply | Guadalupe | 2,681 | Community | Groundwater |
| Vaughn Duran Water System | Guadalupe | 785 | Community | Groundwater |
| Pajarito Rest Area - West Bound | Guadalupe | 475 | Transient non-community | Groundwater |
| Anton Chico Rest Area West Bound | Guadalupe | 450 | Transient non-community | Groundwater |
| Pajarito Rest Area - East Bound | Guadalupe | 450 | Transient non-community | Groundwater |
| Puerto De Luna Mdwca | Guadalupe | 426 | Community | Purchased groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Santa Rosa Lake, PWSID NM3591010, New Mexico”, https://aquacensus.com/water-systems/new-mexico/santa-rosa-lake-nm3591010 (data as of October 1, 2026).