Calera, OK: 77 Violations - Home Safety Score unavailable
1 ZIP code · 4 water systems · Updated
Data: EPA SDWIS
Key Facts for Calera Residents
- Your city's water systems recorded 77 violations in the past 5 years.
- Average lead level: 0.0044 mg/L.
- Homes built before 1986: 31% - older plumbing may contain lead solder.
- Estimated remediation: $1,100 per household.
- CDC health risk index: 15.11 - above typical levels.
Calera's Water Providers
Residential water in Calera, OK is supplied by 3 separate utilities - not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 4 water systems in the area, with these providers collectively accounting for the dominant share of household connections.
Overview
We track home safety data for 1 ZIP code in Calera, Oklahoma (population ~5,790), covering 4 community water systems serving approximately 19,722 people region-wide. 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. 43 health-based violations appear in the available health breakdown.
Water Sources
Calera water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0044 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 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 50 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 30 | 1 |
| Consumer Confidence Report Rule | Reporting | 24 | 1 |
| Revised Total Coliform Rule | Microbiological | 24 | 1 |
| Uranium | Radionuclides | 8 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 74730 | — | 77 | 43 | Bryan County Rural Water District #5 |
All ZIP Codes in Calera
- 74730 - 77 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.
Calera 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 Calera's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Calera Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
What does a median build year of 1990 mean for water safety in Calera? It means the housing stock straddles two key plumbing thresholds: the 1986 federal ban on lead solder in copper plumbing, and the pre-1970 era when lead pipes were commonly installed for service lines. A meaningful share of homes predates one or both of those cutoffs, creating varied risk levels across the city's housing inventory.
Most homes in Calera 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.
How Remediation Costs Compare in Calera
Remediation costs in Calera are small relative to typical property values - the cost-to-value ratio here is favorable.
Remediation costs in Calera are relatively low compared to home values. The $600–$2,300 estimated range is a small fraction of median property value. Home values are 16% above the Oklahoma average.
Calera: 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.
Households with kids in the home - for whom CDC guidance places particular weight on minimizing exposure - face a specific local picture in Calera. 31% of homes here come from the pre-rule era, and aggregate utility samples either approach or cross 0.015 mg/L. A baseline draw-test kit and certified lead-removal filtration are available via retailer networks for households confirming conditions at a specific tap.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Calera, OK