Public water system · WY5600983

Active

Absaroka Ranch

At a glance

Absaroka Ranch (PWSID WY5600983) is an active transient non-community water system in Fremont County, Wyoming. It reports serving 35 people through 8 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in September 2025.

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

Population served

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDWY5600983

System typeTransient non-community water system

Activity statusActive

Population served35

Service connections8

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyWY state drinking water program

City servedDubois

StateWyoming

ZIP—

CountyFremont County

How does Absaroka Ranch compare with other water systems in Fremont County?

By EPA's size categories, Absaroka Ranch is a very small system (500 people or fewer). Fremont County has 61 active public water systems. Its population served is well below the county average of 433 people per system, and accounts for 0.1% of the 26,380 people reported by systems filed under the county. Across Wyoming, the 775 active systems average 838 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Absaroka Ranch is well 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. Wyoming has 352 active transient non-community water systems, 45% of the state's 775 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 585 Wyoming systems (75%) list groundwater as their primary source.

Who owns and regulates Absaroka Ranch?

EPA lists Absaroka Ranch as privately owned. The WY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 37 of the 61 active systems in Fremont County (61%) are also privately owned.

Does Absaroka Ranch have drinking water violations?

EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in September 2025. The violations listed here began between October 1991 and September 2025. By type: 4 reporting, 3 monitoring, 3 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Revised Total Coliform Rule (8 of them). EPA lists 9 as resolved and 2 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.

Began	Violation	Contaminant or rule	Health-based	Status
2025-09-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2025-08-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2024-07-01	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2023-12-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2023-09-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2023-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2020-11-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2017-06-01	Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2D	Revised Total Coliform Rulecode 8000	Yes	Resolved
2013-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitrate-Nitritecode 1038	No	Resolved
2004-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1991-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived

All 11 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.

Absaroka Ranch: frequently asked questions

Who runs Absaroka Ranch?

Absaroka Ranch (PWSID WY5600983) is a transient non-community water system privately owned. It is regulated by the WY state drinking water program.

How many people does Absaroka Ranch serve?

Absaroka Ranch reports serving 35 people through 8 service connections in Fremont County, Wyoming.

Where does Absaroka Ranch 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 Absaroka Ranch have any drinking water violations?

EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in September 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 Absaroka Ranch'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 11 violations for this system; 1 is health-based, and the most recent began in September 2025. For current results, consult EPA ECHO, or the WY state drinking water program.

Where can I find Absaroka Ranch's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Absaroka Ranch 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 Fremont County

Water system	County	Population served	Type	Source
Riverton, City of	Fremont	10,330	Community	Surface water
Lander, City of	Fremont	7,615	Community	Surface water
Dubois, Town of	Fremont	1,822	Community	Groundwater
Shoshoni, Town of	Fremont	515	Community	Groundwater
Wy Dot-Sweetwater Rest Area	Fremont	500	Transient non-community	Groundwater
Hudson, Town of	Fremont	460	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, “Absaroka Ranch, PWSID WY5600983, Wyoming”, https://aquacensus.com/water-systems/wyoming/absaroka-ranch-wy5600983 (data as of October 1, 2026).