Windsor, CO: 12 Violations — 60/100 (2026)
2 ZIP codes · 13 water systems · Updated 2026-06-03
Based on current EPA data, Windsor, CO reflects fair but uneven tap water safety.
How Windsor Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Windsor Water
- Your city's water systems recorded 12 violations in the past 5 years.
- Average lead level: 0.0058 mg/L.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 11.23.
Who Supplies Your Water in Windsor
Federal drinking water records identify 13 systems in Windsor, CO. The leading 3 providers serve the largest share of residential connections, each operating as a separate entity with its own rate authority, infrastructure management, and EPA compliance obligations — so service conditions are not uniform city-wide.
Overview
We track water quality and home safety data for 2 ZIP codes in Windsor, Colorado (population ~44,224), covering 13 community water systems serving approximately 424,757 people region-wide.
2 of 2 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Windsor: C (60/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Windsor water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0058 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 2 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 6 | 2 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 3 | 2 |
| Lead and Copper Rule | Treatment Technique | 3 | 2 |
| E. coli | Microbiological | 3 | 2 |
| Revised Total Coliform Rule | Microbiological | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 80550 | C | 6 | 0 | Windsor Town of |
| 80551 | C | 6 | 0 | Windsor Town of |
All ZIP Codes in Windsor
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Windsor
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Windsor Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Windsor Homeowners
How much of a Windsor home's value does documented remediation represent? A small fraction — the equity share here is in the low tier, and from a household financial perspective, most property owners are considering a commitment that fits comfortably within standard planning rather than a decision that rises to the level of a material budget event or significant equity consideration.
Remediation costs in Windsor are relatively low compared to home values. The $1,400–$2,800 estimated range is a small fraction of median property value. Home values are 19% above the Colorado average.
Lead Exposure Risk for Children in Windsor
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Windsor appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Windsor
Flood activity in Windsor is neither negligible nor at the level of the highest-exposure areas in the NFIP dataset. The 14-claim record and 50% flood zone coverage suggest a community that has experienced recurrent events but has not faced the kind of sustained, severe exposure where water-supply contamination becomes a primary public health concern. It sits in a middle range where flood history merits inclusion in any complete local water quality picture.
Windsor has a moderate flood history with 14 FEMA claims averaging $1,951 per payout. 50% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,100</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Windsor
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Consumer Confidence Report Rule can reduce the most common contaminant found in Windsor's water.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Windsor, CO