Derby, KS: 13 Violations - Home Safety 80/100
1 ZIP code · 4 water systems · Updated
ZipCheckup grade for Derby: B.
This ZIP looks solid, with a few items worth a quick check.
Based on current monitoring, Derby holds an above-average drinking water safety record for KS - violations are infrequent and typically minor when they do appear.
How Derby Compares
Data: EPA SDWIS
What You Should Know About Derby Water
- Your city's water systems recorded 13 violations in the past 5 years.
- Average lead level: 0.003 mg/L.
- Homes built before 1986: 43% - older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 13.14 - above typical levels.
Who Supplies Your Water in Derby
Federal drinking water records identify 4 systems in Derby, KS. 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.
- B
- B
- B
Overview
We track home safety data for 1 ZIP code in Derby, Kansas, covering 4 community water systems serving approximately 30,108 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.
Home Safety Score
Average Home Safety Score for Derby: B (80/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Derby water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0030 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 6 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 6 | 1 |
| Consumer Confidence Report Rule | Reporting | 6 | 1 |
| Revised Total Coliform Rule | Microbiological | 6 | 1 |
| Lead and Copper Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 67037 | B | 13 | 0 | City of Derby, |
All ZIP Codes in Derby
- 67037 [B] - 13 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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Health Outcomes in Derby
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 Derby Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Derby
With 43% 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
Some cities skew heavily toward one construction era; Derby does not. The median build year of 1980 reflects a housing stock where older and newer homes share the market in meaningful proportions. That mixed profile means the city carries moderate aggregate plumbing-era risk - with older homes, particularly those built before 1986, representing the portion of the stock where lead-soldered joints may still be present.
Most homes in Derby 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 Derby Homeowners
Property equity in Derby runs well ahead of estimated remediation costs - a cost-to-value ratio that sits in the low tier, meaning documented water and safety issues here are the kind homeowners can plan to address without treating the expense as a significant budget event relative to what their homes are worth.
Remediation costs in Derby are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 50% above the Kansas average.
Lead Exposure Risk for Children in Derby
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.
Practically, the structural drivers in Derby - 43% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark - make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Derby
Historical NFIP data for Derby contains 75 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $7,432. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
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. The <strong>$1,600</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Derby, KS