Shawnee, OK: 24 Health Violations — 63/100 (2026)
3 ZIP codes · 8 water systems · Updated 2026-06-03
Public water data for Shawnee, OK reveals a split picture — tap water quality varies meaningfully by service area and the city's grade reflects that variability.
How Shawnee Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Shawnee Water
- Your city's water systems recorded 39 violations in the past 5 years.
- Average lead level: 0.0028 mg/L.
- Homes built before 1986: 66% — older plumbing may contain lead solder.
- Estimated remediation: $2,367 per household.
- CDC health risk index: 14.95 — above typical levels.
Who Supplies Your Water in Shawnee
Structurally, Shawnee, OK's water supply is divided. Federal data identifies 8 water systems in the area, with 3 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.
Overview
We track water quality and home safety data for 3 ZIP codes in Shawnee, Oklahoma, covering 8 community water systems serving approximately 44,209 people.
3 of 3 ZIP codes (100%) have recorded EPA violations. 24 health-based violations documented.
Home Safety Score
Average Home Safety Score for Shawnee: C (63/100)
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
Shawnee water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0028 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 |
|---|---|---|---|
| Chlorite | Disinfection Byproducts | 20 | 3 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 20 | 3 |
| Contaminant 1052 | Other | 4 | 3 |
| Contaminant 2010 | Other | 4 | 3 |
| Contaminant 2959 | Other | 4 | 3 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 74801 | C | 13 | 8 | Shawnee Municipal Authority |
| 74802 | B | 13 | 8 | Shawnee Municipal Authority |
| 74804 | C | 13 | 8 | Shawnee Municipal Authority |
All ZIP Codes in Shawnee
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 Shawnee
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 Shawnee Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Shawnee
With 66% 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
Lead solder was standard in copper plumbing until federally banned in 1986; lead pipes were common in service lines pre-1970. Shawnee's median build year of 1975 reflects a housing stock where these older materials are a pervasive feature — not a rare legacy — of the residential plumbing landscape.
Over half of homes in Shawnee 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 Shawnee Homeowners
The equity-to-remediation ratio in Shawnee is moderate — worth planning for but within reach for most property owners.
Remediation costs are moderate relative to home values in Shawnee. The estimated $1,467–$4,067 range is manageable for most homeowners but still worth budgeting for. Home values are 37% above the Oklahoma average.
Lead Exposure Risk for Children in Shawnee
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.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 66% of the Shawnee inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Shawnee
Over the multi-decade window covered by the National Flood Insurance Program, Shawnee has accumulated 139 claims — a total that suggests more than isolated flood exposure. With 100% of ZIP codes in designated flood zones, the water-quality implications of flooding move from hypothetical to periodically relevant: treatment intake can be compromised, wells can be infiltrated, and distribution backflow can occur.
Shawnee has a moderate flood history with 139 FEMA claims averaging $12,953 per payout. 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>$2,367</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.
What You Can Do in Shawnee
- 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 Chlorite can reduce the most common contaminant found in Shawnee's water.
- Check your home's plumbing. With 66% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Shawnee, OK