Public water system · CO0104090
ActiveAlpine Lakes Ranch Wc
At a glance
Alpine Lakes Ranch Wc (PWSID CO0104090) is an active community water system in Archuleta County, Colorado. It reports serving 158 people through 147 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 January 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
158
Service connections
147
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Alpine Lakes Ranch Wc compare with other water systems in Archuleta County?
By EPA's size categories, Alpine Lakes Ranch Wc is a very small system (500 people or fewer). Archuleta County has 16 active public water systems, and Alpine Lakes Ranch Wc is the 6th-largest of them by population served. Its population served is well below the county average of 991 people per system, and accounts for 1% of the 15,857 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 Alpine Lakes Ranch Wc 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 337 Colorado systems (15%) list purchased surface water as their primary source.
Who owns and regulates Alpine Lakes Ranch Wc?
EPA lists Alpine Lakes Ranch Wc 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. 12 of the 16 active systems in Archuleta County (75%) are also privately owned.
Does Alpine Lakes Ranch Wc 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 2023. The violations listed here began between January 2020 and January 2023. By type: 11 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Combined Radium (-226 and -228) (2 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 |
|---|---|---|---|---|
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2022-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Bromatecode 1011 | No | Resolved |
| 2022-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2022-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Thalliumcode 1085 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | 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.
Alpine Lakes Ranch Wc: frequently asked questions
Who runs Alpine Lakes Ranch Wc?
Alpine Lakes Ranch Wc (PWSID CO0104090) is a community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Alpine Lakes Ranch Wc serve?
Alpine Lakes Ranch Wc reports serving 158 people through 147 service connections in Archuleta County, Colorado.
Where does Alpine Lakes Ranch Wc 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 Alpine Lakes Ranch Wc 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 2023. 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 Alpine Lakes Ranch Wc'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 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find Alpine Lakes Ranch Wc's water quality report?
As a community water system, Alpine Lakes Ranch Wc 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 Archuleta County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pagosa Area Wsd | Archuleta | 11,069 | Community | Surface water |
| Navajo State Park | Archuleta | 2,015 | Transient non-community | Groundwater |
| San Juan River Village Md | Archuleta | 877 | Community | Groundwater under influence of surface water |
| Piedra Park Md | Archuleta | 850 | Community | Groundwater under influence of surface water |
| Aspen Springs Md | Archuleta | 290 | Community | Groundwater |
| Pagosa Springs Rv Park | Archuleta | 114 | Transient non-community | Groundwater under influence of 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, “Alpine Lakes Ranch Wc, PWSID CO0104090, Colorado”, https://aquacensus.com/water-systems/colorado/alpine-lakes-ranch-wc-co0104090 (data as of October 1, 2026).