City of Aspen
EPA ID: CO0149122 · 31,100 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for City of Aspen (CO0149122): 7 EPA violations in the last five years. On record: City of Aspen, 7 violations, all resolved, 31,100 in service area.
Data: EPA SDWIS
Service Area Map
Coverage area for City of Aspen Source: EPA SDWIS service area boundaries.
Service area boundary - Grade C
Service Area Demographics
The City of Aspen serves a community with a median household income of $95,708 and an estimated 9,232 residents across its service area. Approximately 50% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
City of Aspen's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
Detected Contaminants
How City of Aspen compares to EPA limits
What This Means For You
E. coli at 3 Zero tolerance (any positive sample triggers immediate action) exceeds the EPA maximum of Zero tolerance (any positive sample triggers immediate action). Severe GI illness; potentially fatal kidney failure in children. Consider UV disinfection (99.99%) filtration.
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Fecal Coliform at 1 presence exceeds the EPA maximum of presence.
Revised Total Coliform Rule at 1 presence exceeds the EPA maximum of presence.
E. coli was detected in this water system. UV disinfection (99.99%) filtration can reduce exposure.
Find a certified water filter →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
City of Aspen (EPA ID: CO0149122) is a community water system in Colorado that serves approximately 31,100 people from surface water sources.
This system serves ZIP code 81611 in Aspen.
ZIP-Area Home Safety Context: C (58/100)
This is the average Home Safety Score for 1 of 1 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 7 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| March 1, 2025 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| March 1, 2025 | E. coli | Non-health-based | Resolved |
| January 1, 2025 | Revised Total Coliform Rule | Non-health-based | Resolved |
| January 1, 2025 | Chlorite | Non-health-based | Resolved |
| February 1, 2023 | E. coli | Non-health-based | Resolved |
| March 1, 2022 | E. coli | Non-health-based | Resolved |
| March 1, 2022 | Fecal Coliform | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| E. coli | Microbiological | 3 | No |
| Chlorite | Disinfection Byproducts | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
| Fecal Coliform | Microbiological | 1 | No |
| Revised Total Coliform Rule | Microbiological | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.001 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by CO or modeled from parcel and building-footprint data.
- 81611 - Aspen
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Aspen (CO0149122) on EPA.gov.
Frequently Asked Questions
Is City of Aspen water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for City of Aspen; its 7 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does City of Aspen serve?
City of Aspen serves approximately 31,100 people across 1 ZIP code in Colorado.
Where does City of Aspen get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
- #47 / 50 Highest Exposure Burden (Colorado)
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). City of Aspen (CO): 7 EPA Violations. https://zipcheckup.com/water-system/co0149122/
@misc{zipcheckup-water-system-co0149122,
author = {{ZipCheckup}},
title = {{City of Aspen (CO): 7 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/co0149122/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
City of Aspen (EPA ID: CO0149122) - request the latest Consumer Confidence Report or ask about specific contaminants.