Cheyenne Utility Notifies 22,000 on Service Lines
Customers receive annual notices on whether their water service lines contain lead, galvanized steel requiring replacement, or unknown materials.
Updated on Nov. 14, 2026 in Utilities
Live Poll
Do you trust your local water utility to keep drinking water safe from lead?
The Cheyenne Board of Public Utilities has begun mailing annual notifications to about 22,000 customers about the materials in their water service lines. The notices cover lines classified as known lead, galvanized requiring replacement, or unknown.
Why it matters
The notifications are required under EPA Lead and Copper Rule Revisions finalized in 2021, and they give residents of Cheyenne information needed to understand possible lead exposure from their water supply. BOPU is also pursuing field work to close gaps in its records for lines whose material remains unknown.
About 22,000 Cheyenne customers are receiving notices about their service line materials, drawn from BOPU's Lead Service Line Inventory. Materials for some lines remain unknown and are not yet verified.
The players
Cheyenne Board of Public Utilities (BOPU)
The municipal utility that provides water service to Cheyenne, Wyoming, and maintains the city's Lead Service Line Inventory.
U.S. Environmental Protection Agency (EPA)
The federal agency that sets drinking water standards, including the Lead and Copper Rule Revisions that require these customer notifications.
The details
BOPU uses Geographic Information System technology and available record drawings to confirm service line locations and classify materials. It owns the service line from the water main to the curb stop, while property owners are responsible for the section from the curb stop to their home. BOPU also adjusts water pH to reduce lead leaching from service lines, fixtures, and faucets, and is hydro excavating at curb stops to visually verify unknown materials.
Timeline
2021: EPA Lead and Copper Rule Revisions finalized, requiring the notifications.
2022: BOPU began operating as a split ownership utility.
November 13, 2026: BOPU began mailing annual service line notifications.
Business Landscape
The 2021 EPA Lead and Copper Rule Revisions require utilities nationwide to inventory service lines and notify customers, and Cheyenne's annual mailing applies those requirements locally. Because BOPU operates as a split ownership utility since 2022, it now shares responsibility for service lines with property owners, which shapes how replacement costs are assigned across the system.
Customers who receive a notice should check whether their service line is listed as lead, galvanized requiring replacement, or unknown. Property owners are responsible for the line from the curb stop to the home, so the notice matters most for planning any replacement work on that section.
The takeaway
Check your notice and confirm your service line material with BOPU's public map if you are unsure. If the line is listed as lead or galvanized requiring replacement, plan with your utility for the replacement of the portion you own.
Further reading
For more on how local water providers manage infrastructure, see Utilities coverage on Wisevoter.
More information
Residents can find details on the BOPU Lead Service Line Initiative on the utility's website.
Source note: This article includes information reported by Wyoming Tribune Eagle.
Live Poll
Do you trust your local water utility to keep drinking water safe from lead?
