Public water system · WY5600782
ActiveRolling Hills, Town of
At a glance
Town of Rolling Hills (PWSID WY5600782) is an active community water system in Converse County, Wyoming. It reports serving 450 people through 175 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
450
Service connections
175
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Town of Rolling Hills compare with other water systems in Converse County?
By EPA's size categories, Town of Rolling Hills is a very small system (500 people or fewer). Converse County has 19 active public water systems. Its population served is about 40% below the county average of 756 people per system, and accounts for 3.1% of the 14,359 people reported by systems filed under the county. Across Wyoming, the 775 active systems average 838 people each. Nationally, the average active community water system reports serving 6,703 people, so Town of Rolling Hills 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. Wyoming has 332 active community water systems, 43% 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 Town of Rolling Hills?
EPA lists Town of Rolling Hills as owned by a local government. 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. 5 of the 19 active systems in Converse County (26%) are also owned by a local government.
Does Town of Rolling Hills have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2025. The violations listed here began between March 1983 and December 2025. By type: 10 monitoring and reporting, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Chlorine (2 of them). EPA lists 9 as archived and 3 as resolved. 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. 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 |
|---|---|---|---|---|
| 2025-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2008-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1997-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1997-07-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1983-03-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Archived |
| 1983-03-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Archived |
| 1983-03-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 1983-03-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1983-03-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Archived |
| 1983-03-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Archived |
| 1983-03-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Archived |
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.
Town of Rolling Hills: frequently asked questions
Who runs Town of Rolling Hills?
Town of Rolling Hills (PWSID WY5600782) is a community water system owned by a local government. It is regulated by the WY state drinking water program.
How many people does Town of Rolling Hills serve?
Town of Rolling Hills reports serving 450 people through 175 service connections in Converse County, Wyoming.
Where does Town of Rolling Hills 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 Town of Rolling Hills have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 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 Town of Rolling Hills' 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, one is health-based, and the most recent began in December 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the WY state drinking water program.
Where can I find Town of Rolling Hills' water quality report?
As a community water system, Town of Rolling Hills 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 Converse County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Douglas, City of | Converse | 6,400 | Community | Surface water |
| Glenrock, Town of | Converse | 2,466 | Community | Groundwater |
| Wydot-Orin Junction Rest Area | Converse | 1,900 | Transient non-community | Groundwater |
| Navajo Trans Engr Co., LLC (Antelope) | Converse | 550 | Non-transient non-community | Groundwater |
| Broken Wheel Truck Stop | Converse | 540 | Non-transient non-community | Groundwater |
| Lone Tree Village MHP | Converse | 475 | 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, “Rolling Hills, Town of, PWSID WY5600782, Wyoming”, https://aquacensus.com/water-systems/wyoming/rolling-hills-town-of-wy5600782 (data as of October 1, 2026).