Herndon, KS: 2 Violations — 64/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Herndon shows moderate tap water quality for KS — some areas carry documented EPA violations while others meet standards without issues.
How Herndon Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Herndon Water
- Your city's water systems recorded 2 violations in the past 5 years.
- Average lead level: 0.0029 mg/L.
- Homes built before 1986: 93% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 15.9 — above typical levels.
Who Supplies Your Water in Herndon
For most households in Herndon, KS, tap water comes from one provider — the utility that controls the local distribution system out of 1 tracked in federal record.
Overview
We track water quality and home safety data for 1 ZIP code in Herndon, Kansas, covering 1 community water system serving approximately 224 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Herndon: C (64/100)
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
Herndon water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0029 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.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 2 | 1 |
| Lead and Copper Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 67739 | C | 2 | 0 | City of Herndon, |
All ZIP Codes in Herndon
- 67739 [C] — 2 violations
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 Herndon
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 Herndon Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Herndon
With 93% 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
Viewed through the lens of construction era, Herndon is predominantly an older city — a median build year of 1954 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.
Over half of homes in Herndon 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.
Cost Context: What Remediation Means for Herndon Homeowners
Framing remediation within the Herndon property picture, the equity share is elevated — homeowners here are navigating a financial decision that rewards structured thinking about scope and prioritization, where the cost-to-value ratio is high enough to make the difference between a planned approach and an unplanned one financially significant.
At 2.5% of home value, remediation costs in Herndon represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $800–$1,500. Home values here are 68% below the Kansas average.
Lead Exposure Risk for Children in Herndon
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.
Pulling a tap sample fills the gap that utility data cannot close, particularly here where 93% of housing dates from the pre-rule era and citywide monitoring sits at or above the regulatory mark in Herndon.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Herndon
- 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 Stage 1 DBP Rule can reduce the most common contaminant found in Herndon's water.
- Check your home's plumbing. With 93% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Herndon, KS