Public water system · NM3593621
ActiveEl Vado Lake State Park
At a glance
El Vado Lake State Park (PWSID NM3593621) is an active transient non-community water system in Rio Arriba County, New Mexico. It reports serving 100 people through 19 service connections. Its primary water source is surface water, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
19
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does El Vado Lake State Park compare with other water systems in Rio Arriba County?
By EPA's size categories, El Vado Lake State Park is a very small system (500 people or fewer). Rio Arriba County has 63 active public water systems. Its population served is well below the county average of 463 people per system, and accounts for 0.3% of the 29,192 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 El Vado Lake State Park is about 31% below 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. 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 El Vado Lake State Park?
EPA lists El Vado Lake State Park as owned by a state 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. 6 of the 63 active systems in Rio Arriba County (9.5%) are also owned by a state government.
Does El Vado Lake State Park have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2025. The violations listed here began between December 2021 and July 2025. By type: 8 monitoring and reporting, 2 public notice, recordkeeping or other and 2 required treatment not met. The contaminant or rule involved most often is Surface Water Treatment Rule (6 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 |
|---|---|---|---|---|
| 2025-07-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2025-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2025-06-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2025-06-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2024-12-05 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2024-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2023-01-29 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2022-09-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2022-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2022-05-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2022-05-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2021-12-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | 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.
El Vado Lake State Park: frequently asked questions
Who runs El Vado Lake State Park?
El Vado Lake State Park (PWSID NM3593621) is a transient non-community water system owned by a state government. It is regulated by the NM state drinking water program.
How many people does El Vado Lake State Park serve?
El Vado Lake State Park reports serving 100 people through 19 service connections in Rio Arriba County, New Mexico.
Where does El Vado Lake State Park 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 El Vado Lake State Park have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 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 El Vado Lake State Park'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, 2 are health-based, and the most recent began in July 2025. For current results, consult EPA ECHO, or the NM state drinking water program.
Where can I find El Vado Lake State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. El Vado Lake State Park 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 Rio Arriba County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Espanola Water System | Rio Arriba | 12,012 | Community | Groundwater |
| Chama Water System | Rio Arriba | 1,573 | Community | Surface water |
| Agua Sana Wua | Rio Arriba | 1,514 | Community | Groundwater |
| El Rito Regional Water & Waste Water Asn | Rio Arriba | 1,200 | Community | Groundwater |
| Greater Chimayo Mdwca | Rio Arriba | 1,050 | Community | Groundwater |
| Alcalde Mdwca | Rio Arriba | 927 | 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, “El Vado Lake State Park, PWSID NM3593621, New Mexico”, https://aquacensus.com/water-systems/new-mexico/el-vado-lake-state-park-nm3593621 (data as of October 1, 2026).