Public water system · CO0204466

Active

Last Resort on the River

At a glance

Last Resort on the River (PWSID CO0204466) is an active transient non-community water system in Archuleta County, Colorado. It reports serving 52 people through 16 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in February 2020.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

Service connections

Primary source

Groundwater under influence of surface water

System type

TNCWS

Transient non-community water system

System record

PWSIDCO0204466

System typeTransient non-community water system

Activity statusActive

Population served52

Service connections16

Primary water sourceGroundwater under influence of surface water

Owner typePrivate

Primacy agencyCO state drinking water program

City servedPagosa Springs

StateColorado

ZIP—

CountyArchuleta County

How does Last Resort on the River compare with other water systems in Archuleta County?

By EPA's size categories, Last Resort on the River 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 transient non-community water system reports serving 144 people, so Last Resort on the River is about 64% 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. Colorado has 956 active transient non-community water systems, 43% 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 Last Resort on the River?

EPA lists Last Resort on the River 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 Last Resort on the River have drinking water violations?

Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in February 2020. The violations listed here began between June 2019 and February 2020. By type: 6 monitoring and reporting, 4 required treatment not met, 1 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Surface Water Treatment Rule (10 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
2020-02-01	Required treatment not metTreatment Technique (SWTR and GWR) · code 41	Surface Water Treatment Rulecode 0200	Yes	Resolved
2020-01-26	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2020-01-01	Required treatment not metTreatment Technique (SWTR and GWR) · code 41	Surface Water Treatment Rulecode 0200	Yes	Resolved
2020-01-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2019-12-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2019-11-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2019-09-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2019-08-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2019-08-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2019-07-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2019-06-06	Required treatment not metFailure to Filter (SWTR) · code 42	Surface Water Treatment Rulecode 0200	Yes	Resolved
2019-06-01	Required treatment not metTreatment Technique (SWTR and GWR) · code 41	Surface Water Treatment Rulecode 0200	Yes	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.

Last Resort on the River: frequently asked questions

Who runs Last Resort on the River?

Last Resort on the River (PWSID CO0204466) is a transient non-community water system privately owned. It is regulated by the CO state drinking water program.

How many people does Last Resort on the River serve?

Last Resort on the River reports serving 52 people through 16 service connections in Archuleta County, Colorado.

Where does Last Resort on the River 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 Last Resort on the River have any drinking water violations?

Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in February 2020. 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 Last Resort on the River'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, 4 are health-based, and the most recent began in February 2020. For current results, consult EPA ECHO, or the CO state drinking water program.

Where can I find Last Resort on the River's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Last Resort on the River 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 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, “Last Resort on the River, PWSID CO0204466, Colorado”, https://aquacensus.com/water-systems/colorado/last-resort-on-the-river-co0204466 (data as of October 1, 2026).