Public water system · CO0157011
ActiveAldasoro Ranch Hoc
At a glance
Aldasoro Ranch Hoc (PWSID CO0157011) is an active community water system in San Miguel County, Colorado. It reports serving 412 people through 103 service connections. Its primary water source is groundwater, 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 January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
412
Service connections
103
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Aldasoro Ranch Hoc compare with other water systems in San Miguel County?
By EPA's size categories, Aldasoro Ranch Hoc is a very small system (500 people or fewer). San Miguel County has 20 active public water systems, and Aldasoro Ranch Hoc is the 5th-largest of them by population served. Its population served is about 63% below the county average of 1,103 people per system, and accounts for 1.9% of the 22,054 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active community water system reports serving 6,703 people, so Aldasoro Ranch Hoc 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. Colorado has 1,068 active community water systems, 48% of the state's 2,207 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,437 Colorado systems (65%) list groundwater as their primary source.
Who owns and regulates Aldasoro Ranch Hoc?
EPA lists Aldasoro Ranch Hoc as privately owned. The CO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 10 of the 20 active systems in San Miguel County (50%) are also privately owned.
Does Aldasoro Ranch Hoc have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. The violations listed here began between January 2025 and January 2026. By type: 11 monitoring and reporting and 1 monitoring. The contaminants or rules involved are Revised Total Coliform Rule, Chlorine, Vinyl chloride and Toluene. 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 |
|---|---|---|---|---|
| 2026-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | 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.
Aldasoro Ranch Hoc: frequently asked questions
Who runs Aldasoro Ranch Hoc?
Aldasoro Ranch Hoc (PWSID CO0157011) is a community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Aldasoro Ranch Hoc serve?
Aldasoro Ranch Hoc reports serving 412 people through 103 service connections in San Miguel County, Colorado.
Where does Aldasoro Ranch Hoc 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 Aldasoro Ranch Hoc 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 January 2026. 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 Aldasoro Ranch Hoc'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 January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find Aldasoro Ranch Hoc's water quality report?
As a community water system, Aldasoro Ranch Hoc 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 Miguel County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mountain Village Town of | San Miguel | 9,700 | Community | Groundwater |
| Telluride Town of | San Miguel | 7,900 | Community | Surface water |
| Norwood Water Commission | San Miguel | 1,700 | Community | Surface water |
| Telluride Regional Airport | San Miguel | 485 | Transient non-community | Groundwater |
| Ilium Valley Ws | San Miguel | 322 | Community | Groundwater |
| Wilson Mesa | San Miguel | 290 | 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, “Aldasoro Ranch Hoc, PWSID CO0157011, Colorado”, https://aquacensus.com/water-systems/colorado/aldasoro-ranch-hoc-co0157011 (data as of October 1, 2026).