Henderson, CO: High Radon Risk — 70/100 (2026)
1 ZIP code · 5 water systems · Updated 2026-06-03
EPA compliance records for Henderson tell a largely clear story: violation rates are low, health-based exceedances are uncommon, and the city's grade puts it well above average within CO.
How Henderson Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Henderson Water
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 8% — older plumbing may contain lead solder.
- Estimated remediation: $3,600 per household.
- CDC health risk index: 10.98.
Who Supplies Your Water in Henderson
Henderson, CO draws its residential water from 3 separate providers among the 5 federally tracked systems. Each operates independently, with its own infrastructure, rate structure, and compliance record.
Overview
We track water quality and home safety data for 1 ZIP code in Henderson, Colorado (population ~14,073), covering 5 community water systems serving approximately 357,461 people region-wide.
No EPA violations recorded across any ZIP codes in Henderson — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Henderson: 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
Henderson water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0010 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)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 80640 | B | Hazeltine Heights Water | 261 |
All ZIP Codes in Henderson
- 80640 [B]
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 Henderson
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
Housing & Infrastructure in Henderson
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Why does housing age matter for water safety? Homes built before 1986 may have lead-soldered copper plumbing joints — a practice banned that year. Henderson's median build year of 2005 places much of the city's housing in the post-ban era, reducing that specific risk pathway for most residents.
Most homes in Henderson were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Henderson Homeowners
Low proportionality — that's the Henderson picture when remediation costs are placed against typical home equity.
Remediation costs in Henderson are relatively low compared to home values. The $2,400–$4,800 estimated range is a small fraction of median property value. Home values are 3% above the Colorado average.
Lead Exposure Risk for Children in Henderson
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.
Generally, the structural picture for Henderson runs in a quiet direction. Aggregate sampling rests under the federal action benchmark, and 8% of housing comes from the pre-rule era — a contained local footprint. That dual signal keeps lead in the background of local concerns, while a one-faucet measurement still answers a different question than any system average can: what is actually flowing from one specific tap on a given morning.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Henderson
Flood activity in Henderson is neither negligible nor at the level of the highest-exposure areas in the NFIP dataset. The 1-claim record and 100% 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.
Henderson has a moderate flood history with 1 FEMA claims. 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>$3,600</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 Henderson, CO