Duncan, OK: 34 Violations - Home Safety Score unavailable
3 ZIP codes · 5 water systems · Updated
Data: EPA SDWIS
What You Should Know About Duncan Water
- Your city's water systems recorded 34 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0014 mg/L.
- Estimated remediation: $800 per household.
- Health risk index (ZipCheckup composite of CDC data): 15.6.
Who Supplies Your Water in Duncan
Because each listed system has its own federal record, violations at one of the 3 shown below do not apply to the others among the 5 tied to Duncan, OK.
Overview
We track home safety data for 3 ZIP codes in Duncan, Oklahoma, covering 5 community water systems serving approximately 27,935 people. The EPA snapshots used for this build directly map water systems to 1 of 3 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 15 health-based violations appear in the available health breakdown.
Water Sources
Duncan water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0014 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
3 of 3 ZIP records with known zones are in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 20 | 1 |
| Total organic carbon | Disinfection Byproducts | 12 | 1 |
| Chlorine | Disinfectant | 10 | 1 |
| Revised Total Coliform Rule | Microbiological | 8 | 1 |
| E. coli | Microbiological | 6 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 73533 | — | 34 | 15 | Duncan Public Utilities Authority |
All ZIP Codes in Duncan
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 Duncan
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Duncan Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Duncan Homeowners
Low tier for Duncan: remediation estimated at up to 1% of what homes are worth.
Estimated remediation costs in Duncan can be compared with local home values. The $450–$1,550 estimated range can be set against the median property value; actual costs vary by home. Home values are 5% below the Oklahoma average.
Lead Exposure Risk for Children in Duncan
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Available area-level lead records for Duncan do not determine the lead level at an individual tap. 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.
Historical NFIP Claim Context in Duncan
Historical NFIP data for Duncan contains 67 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $10,976. Among ZIP codes with claim records, 0% 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 $800 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 Duncan, OK