Public water system · WY5601446
ActiveMhvc 66 Ranch
At a glance
Mhvc 66 Ranch (PWSID WY5601446) is an active transient non-community water system in Natrona County, Wyoming. It reports serving 96 people through 53 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
96
Service connections
53
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Mhvc 66 Ranch compare with other water systems in Natrona County?
By EPA's size categories, Mhvc 66 Ranch is a very small system (500 people or fewer). Natrona County has 48 active public water systems. Its population served is well below the county average of 1,680 people per system, and accounts for 0.1% of the 80,646 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 Mhvc 66 Ranch is about 33% 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 Mhvc 66 Ranch?
EPA lists Mhvc 66 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. 25 of the 48 active systems in Natrona County (52%) are also privately owned.
Does Mhvc 66 Ranch have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 2017. The violations listed here began between April 2017 and April 2017. By type: 2 monitoring and reporting. The contaminant or rule involved most often is E. coli (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 2017-04-27 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2017-04-27 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
All 2 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.
Mhvc 66 Ranch: frequently asked questions
Who runs Mhvc 66 Ranch?
Mhvc 66 Ranch (PWSID WY5601446) is a transient non-community water system privately owned. It is regulated by the WY state drinking water program.
How many people does Mhvc 66 Ranch serve?
Mhvc 66 Ranch reports serving 96 people through 53 service connections in Natrona County, Wyoming.
Where does Mhvc 66 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 Mhvc 66 Ranch have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 2017. 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 Mhvc 66 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 2 violations for this system; none is health-based, and the most recent began in April 2017. For current results, consult EPA ECHO, or the WY state drinking water program.
Where can I find Mhvc 66 Ranch's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mhvc 66 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 Natrona County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Casper, City of | Natrona | 59,000 | Community | Purchased surface water |
| Mills, City of | Natrona | 4,050 | Community | Groundwater under influence of surface water |
| Bar Nunn, Town of | Natrona | 4,000 | Community | Purchased surface water |
| Evansville, Town of | Natrona | 2,873 | Community | Surface water |
| Vista West Water Company | Natrona | 1,600 | Community | Purchased surface water |
| Pioneer Water & Sewer District | Natrona | 1,500 | 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, “Mhvc 66 Ranch, PWSID WY5601446, Wyoming”, https://aquacensus.com/water-systems/wyoming/mhvc-66-ranch-wy5601446 (data as of October 1, 2026).