Crested Butte South
EPA ID: CO0126189 · 2,000 people served · 2 ZIP codes
Unlike many utilities its size, Crested Butte South carries a violation-free five-year record — no EPA notices, no MCL exceedances, serving 2,000 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Crested Butte South Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Crested Butte South serves a community with a median household income of $95,359 and an estimated 4,268 residents across its service area. Approximately 46% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Crested Butte South's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 2% of homes in Gunnison County, Colorado rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 70th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Colorado
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Crested Butte South (EPA ID: CO0126189) is a community water system in Colorado that serves approximately 2,000 people from groundwater sources.
This system provides water to 2 ZIP codes across 1 community.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Crested Butte South (CO0126189) on EPA.gov.
Frequently Asked Questions
Is Crested Butte South water safe to drink?
Based on EPA records, Crested Butte South has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Crested Butte South serve?
Crested Butte South serves approximately 2,000 people across 2 ZIP codes in Colorado.
Where does Crested Butte South get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.