Alamosa, CO: 40 Violations — 70/100 (2026)
2 ZIP codes · 3 water systems · Updated 2026-06-03
How does Alamosa tap water hold up under EPA scrutiny? Above average for CO — documented violations are uncommon and the safety grade reflects a clean overall record.
How Alamosa Compares
Data: EPA SDWIS Last verified: 2026-06-03
Alamosa Water: The Quick Version
- Your city's water systems recorded 40 violations in the past 5 years.
- Average lead level: 0.002 mg/L.
- Estimated remediation: $1,000 per household.
- CDC health risk index: 11.59.
Water Systems Serving Alamosa
Residential addresses in Alamosa, CO are served by 3 primary water providers out of 3 systems in federal records. Each system maintains separate infrastructure and files its own EPA compliance reports, so service conditions are not uniform across the city.
Overview
We track water quality and home safety data for 2 ZIP codes in Alamosa, Colorado, covering 3 community water systems serving approximately 15,454 people.
2 of 2 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Alamosa: B (70/100)
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
Alamosa water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0020 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 2 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 |
|---|---|---|---|
| Lead and Copper Rule | Treatment Technique | 24 | 2 |
| Consumer Confidence Report Rule | Reporting | 12 | 2 |
| Revised Total Coliform Rule | Microbiological | 9 | 2 |
| Stage 1 DBP Rule | Treatment Technique | 6 | 2 |
| Lead | Inorganic | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 81101 | C | 20 | 0 | City of Alamosa |
| 81102 | B | 20 | 0 | City of Alamosa |
All ZIP Codes in Alamosa
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.
CDC Health Data for Alamosa
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
Key Contaminants Detected in Alamosa
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Alamosa: Remediation Cost in Perspective
In Alamosa, documented water and safety issues can be addressed without making a meaningful dent in home equity — the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.
Remediation costs in Alamosa are relatively low compared to home values. The $400–$1,700 estimated range is a small fraction of median property value. Home values are 52% below the Colorado average.
Protecting Children from Lead in Alamosa
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 Alamosa 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.
Climate-Related Water Risk for Alamosa
FEMA data shows 50% of Alamosa's ZIP codes mapped into designated flood zones, paired with an NFIP record of 18 claims. That footprint places local flood exposure in the range where it warrants attention without rising to high-severity planning territory.
Alamosa has a moderate flood history with 18 FEMA claims averaging $233 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>$1,000</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.
Deep Dive Reports
Detailed analysis for Alamosa, CO