Public water system · WY5600011
ActiveCheyenne Board of Public Utilities
At a glance
Cheyenne Board of Public Utilities (PWSID WY5600011) is an active community water system in Laramie County, Wyoming. It reports serving 64,165 people through 25,386 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in September 1996.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
64,165
Service connections
25,386
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Cheyenne Board of Public Utilities compare with other water systems in Laramie County?
By EPA's size categories, Cheyenne Board of Public Utilities is a large system (10,001 to 100,000 people). Laramie County has 50 active public water systems, and Cheyenne Board of Public Utilities is the largest of them by population served. Its population served is about 33 times the county average of 1,933 people per system, and accounts for 66% of the 96,668 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 Cheyenne Board of Public Utilities is about 9.6 times 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 50 Wyoming systems (6.5%) list surface water as their primary source.
Who owns and regulates Cheyenne Board of Public Utilities?
EPA lists Cheyenne Board of Public Utilities 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. 9 of the 50 active systems in Laramie County (18%) are also owned by a local government.
Does Cheyenne Board of Public Utilities have drinking water violations?
EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in September 1996. The violations listed here began between May 1991 and September 1996. By type: 7 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 8 as archived and 1 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 |
|---|---|---|---|---|
| 1996-09-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1994-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1991-05-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1991-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1991-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 9 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.
Cheyenne Board of Public Utilities: frequently asked questions
Who runs Cheyenne Board of Public Utilities?
Cheyenne Board of Public Utilities (PWSID WY5600011) is a community water system owned by a local government. It is regulated by the WY state drinking water program.
How many people does Cheyenne Board of Public Utilities serve?
Cheyenne Board of Public Utilities reports serving 64,165 people through 25,386 service connections in Laramie County, Wyoming.
Where does Cheyenne Board of Public Utilities get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Cheyenne Board of Public Utilities have any drinking water violations?
EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in September 1996. 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 Cheyenne Board of Public Utilities' 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 9 violations for this system; 2 are health-based, and the most recent began in September 1996. For current results, consult the system's annual water quality report, EPA ECHO, or the WY state drinking water program.
Where can I find Cheyenne Board of Public Utilities' water quality report?
As a community water system, Cheyenne Board of Public Utilities 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 Laramie County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| South Cheyenne Water & Sewer District | Laramie | 10,000 | Community | Purchased surface water |
| Usaf F.E. Warren Afb | Laramie | 5,500 | Community | Purchased surface water |
| Love`S Travel Center | Laramie | 1,545 | Non-transient non-community | Groundwater |
| Travel Centers of America | Laramie | 1,525 | Non-transient non-community | Groundwater |
| Cheyenne Hills Church | Laramie | 1,211 | Transient non-community | Groundwater |
| Pine Bluffs, Town of | Laramie | 1,186 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Cheyenne Board of Public Utilities, PWSID WY5600011, Wyoming”, https://aquacensus.com/water-systems/wyoming/cheyenne-board-of-public-utilities-wy5600011 (data as of October 1, 2026).