Ponca City, OK: 3 Health Violations — 87/100 (2026)
3 ZIP codes · 9 water systems · Updated 2026-06-03
EPA compliance records for Ponca City 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 OK.
How Ponca City Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Ponca City Residents
- Your city's water systems recorded 18 violations in the past 5 years.
- Average lead level: 0.002 mg/L.
- Homes built before 1986: 79% — older plumbing may contain lead solder.
- Estimated remediation: $1,300 per household.
- CDC health risk index: 15.63 — above typical levels.
Ponca City's Water Providers
Federal drinking water records identify 9 systems in Ponca City, OK. 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.
Overview
We track water quality and home safety data for 3 ZIP codes in Ponca City, Oklahoma, covering 9 community water systems serving approximately 31,380 people.
3 of 3 ZIP codes (100%) have recorded EPA violations. 3 health-based violations documented.
Home Safety Score
Average Home Safety Score for Ponca City: A (87/100)
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
Ponca City water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0020 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 3 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 8 | 3 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | 3 |
| Chlorite | Disinfection Byproducts | 4 | 3 |
| Stage 1 DBP Rule | Treatment Technique | 4 | 3 |
| Surface Water Treatment Rule | Treatment Technique | 4 | 3 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 74601 | B | 6 | 1 | Ponca City Mun Water |
| 74602 | A | 6 | 1 | Ponca City Mun Water |
| 74604 | A | 6 | 1 | Ponca City Mun Water |
All ZIP Codes in Ponca City
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.
Ponca City Community Health Snapshot
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
What's in Ponca City's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Ponca City Infrastructure Age
With 79% 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, Ponca City is predominantly an older city — a median build year of 1963 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.
Over half of homes in Ponca City 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.
How Remediation Costs Compare in Ponca City
Within the Ponca City market, estimated remediation claims a small portion of typical property equity — the financial burden is proportionally low.
Remediation costs in Ponca City are relatively low compared to home values. The $817–$2,067 estimated range is a small fraction of median property value. Home values are 37% above the Oklahoma average.
Ponca City: Lead Risk & Vulnerable Populations
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 Ponca City — 79% 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.
Ponca City: Flood History & Water Damage Risk
Flood activity in Ponca City is neither negligible nor at the level of the highest-exposure areas in the NFIP dataset. The 157-claim record and 67% 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.
Ponca City has a moderate flood history with 157 FEMA claims averaging $9,204 per payout. 67% 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>$1,300</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 Ponca City, OK