Ada, OK: 2 Health Violations — 94/100 (2026)
2 ZIP codes · 5 water systems · Updated 2026-06-03
For households in Ada, OK water data shows a consistently above-average safety picture.
How Ada Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Ada Water
- Your city's water systems recorded 6 violations in the past 5 years.
- Average lead level: 0.0017 mg/L.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 14.35 — above typical levels.
Who Supplies Your Water in Ada
Federal drinking water records identify 5 systems in Ada, 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 2 ZIP codes in Ada, Oklahoma, covering 5 community water systems serving approximately 31,679 people.
2 of 2 ZIP codes (100%) have recorded EPA violations. 2 health-based violations documented.
Home Safety Score
Average Home Safety Score for Ada: A (94/100)
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
Ada water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0017 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): 2 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 6 | 2 |
| Surface Water Treatment Rule | Treatment Technique | 3 | 2 |
Areas with Most Violations
All ZIP Codes in Ada
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 Ada
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 Ada Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Ada Homeowners
Within the Ada market, estimated remediation claims a small portion of typical property equity — the financial burden is proportionally low.
Remediation costs in Ada are relatively low compared to home values. The $750–$1,850 estimated range is a small fraction of median property value. Home values are 23% above the Oklahoma average.
Lead Exposure Risk for Children in Ada
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.
Lead risk in Ada appears low overall, but individual homes may differ. 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.
Flood & Climate Risk in Ada
FEMA data shows 50% of Ada's ZIP codes mapped into designated flood zones, paired with an NFIP record of 20 claims. That footprint places local flood exposure in the range where it warrants attention without rising to high-severity planning territory.
Ada has a moderate flood history with 20 FEMA claims averaging $32,207 per payout. 50% 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>$1,200</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 Ada, OK