Eldorado Springs, CO: High Radon Risk — 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
The latest EPA cycle for Eldorado Springs shows a low safety grade within CO — compliance gaps have persisted over multiple reporting periods, and the city currently holds a low grade in available EPA data.
How Eldorado Springs Compares
Data: EPA SDWIS Last verified: 2026-06-03
Eldorado Springs Water: The Quick Version
- Homes built before 1986: 100% — older plumbing may contain lead solder.
- Estimated remediation: $2,400 per household.
- CDC health risk index: 8.71.
Water Systems Serving Eldorado Springs
With one provider handling most of Eldorado Springs's residential supply in CO, water service accountability is concentrated in a single utility among the 1 system on record.
Overview
We track water quality and home safety data for 1 ZIP code in Eldorado Springs, Colorado (population ~101), covering 1 community water system serving approximately 166,080 people region-wide.
No EPA violations recorded across any ZIP codes in Eldorado Springs — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Eldorado Springs: D (53/100)
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
Eldorado Springs water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Eldorado Springs
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 80025 | D | BOULDER CITY OF | 166,080 |
All ZIP Codes in Eldorado Springs
- 80025 [D]
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 Eldorado Springs
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
How Old Is Eldorado Springs's Housing Stock?
With 100% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Decades of residential development in Eldorado Springs took place before the two main regulatory milestones that reduced plumbing-era lead risk: the phase-out of lead pipes before 1970, and the federal ban on lead solder in 1986. With a median build year of 1905, the housing stock here is anchored in that earlier period. The distinction between pre-1970 and 1970-to-1986 construction matters: the oldest homes may have lead pipes in the service line and lead solder in the copper joints, while the 1970-to-1986 tier still carries the solder risk even after lead pipes became less common. Together, these two risk layers affect a majority of the residential properties in the city — a fact the aggregate water quality data doesn't directly reveal.
Over half of homes in Eldorado Springs were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Eldorado Springs: Remediation Cost in Perspective
Within the Eldorado Springs market, estimated remediation claims a small portion of typical property equity — the financial burden is proportionally low.
Remediation costs in Eldorado Springs are relatively low compared to home values. The $1,600–$3,300 estimated range is a small fraction of median property value. Home values are 42% above the Colorado average.
Protecting Children from Lead in Eldorado Springs
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.
Locally, 100% of Eldorado Springs homes carry interior plumbing from the era when lead solder was still permitted in new builds, and citywide monitoring approaches or crosses the EPA action benchmark. Households can find a draw-test kit and certified filtration through verified retailers.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Eldorado Springs
Although Eldorado Springs's flood history doesn't reach high-severity thresholds, NFIP data documents 6 claims and FEMA maps place 100% of ZIP codes in designated flood zones — a combined profile that makes flood-related water quality considerations a reasonable planning baseline.
Eldorado Springs has a moderate flood history with 6 FEMA claims averaging $10,684 per payout. 100% 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>$2,400</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 Eldorado Springs
- 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. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 100% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Eldorado Springs, CO