Public water system · CO0104393
ActiveCrowley Ranch Reserve
At a glance
Crowley Ranch Reserve (PWSID CO0104393) is an active community water system in Archuleta County, Colorado. It reports serving 49 people through 38 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as privately owned. EPA's records list 6 violations for this system; none is health-based, and the most recent began in July 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
49
Service connections
38
Primary source
GU
Groundwater under influence of surface water
System type
CWS
Community water system
System record
How does Crowley Ranch Reserve compare with other water systems in Archuleta County?
By EPA's size categories, Crowley Ranch Reserve is a very small system (500 people or fewer). Archuleta County has 16 active public water systems. Its population served is well below the county average of 991 people per system, and accounts for 0.3% 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 Crowley Ranch Reserve 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 under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 166 Colorado systems (7.5%) list groundwater under influence of surface water as their primary source.
Who owns and regulates Crowley Ranch Reserve?
EPA lists Crowley Ranch Reserve 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 Crowley Ranch Reserve have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in July 2019. The violations listed here began between September 2011 and July 2019. By type: 6 monitoring and reporting. The contaminant or rule involved most often is Surface Water Treatment Rule (3 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2019-07-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2019-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2019-02-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2019-02-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2011-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2011-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 6 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.
Crowley Ranch Reserve: frequently asked questions
Who runs Crowley Ranch Reserve?
Crowley Ranch Reserve (PWSID CO0104393) is a community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Crowley Ranch Reserve serve?
Crowley Ranch Reserve reports serving 49 people through 38 service connections in Archuleta County, Colorado.
Where does Crowley Ranch Reserve get its water?
EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.
Does Crowley Ranch Reserve have any drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in July 2019. 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 Crowley Ranch Reserve'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 6 violations for this system; none is health-based, and the most recent began in July 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find Crowley Ranch Reserve's water quality report?
As a community water system, Crowley Ranch Reserve 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 |
| Alpine Lakes Ranch Wc | Archuleta | 158 | Community | Purchased 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, “Crowley Ranch Reserve, PWSID CO0104393, Colorado”, https://aquacensus.com/water-systems/colorado/crowley-ranch-reserve-co0104393 (data as of October 1, 2026).