Sequoyah Company Rwd #4
EPA ID: OK3006809 · 1,750 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for Sequoyah Company Rwd #4 (OK3006809): 2 EPA violations in the last five years. The five-year EPA compliance file for Sequoyah Company Rwd #4 contains 2 violations, each documented and subsequently closed - the utility now operates in full compliance and continues to supply approximately 1,750 residents with water meeting current federal standards, including both health-based and monitoring requirements.
Data: EPA SDWIS
Service Area Map
Coverage area for Sequoyah Company Rwd #4 Source: EPA SDWIS service area boundaries.
Service area boundary - Grade C
Service Area Demographics
The Sequoyah Company Rwd #4 serves a community with a median household income of $52,243 and an estimated 27,583 residents across its service area. Approximately 55% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 100% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
Sequoyah Company Rwd #4's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
Detected Contaminants
How Sequoyah Company Rwd #4 compares to EPA limits
What This Means For You
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Revised Total Coliform Rule at 1 presence exceeds the EPA maximum of presence.
Comparable Water Systems
Similar-sized systems in Oklahoma
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Sequoyah Company Rwd #4 (EPA ID: OK3006809) is a community water system in Oklahoma that serves approximately 1,750 people from surface water sources.
This system provides water to 3 ZIP codes across 3 communities.
ZIP-Area Home Safety Context: C (67/100)
This is the average Home Safety Score for 1 of 3 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 2 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| January 1, 2025 | Revised Total Coliform Rule | Non-health-based | Resolved |
| January 1, 2025 | Consumer Confidence Report Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
| Revised Total Coliform Rule | Microbiological | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OK or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Sequoyah Company Rwd #4 (OK3006809) on EPA.gov.
Frequently Asked Questions
Is Sequoyah Company Rwd #4 water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Sequoyah Company Rwd #4; its 2 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Sequoyah Company Rwd #4 serve?
Sequoyah Company Rwd #4 serves approximately 1,750 people across 3 ZIP codes in Oklahoma.
Where does Sequoyah Company Rwd #4 get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Sequoyah Company Rwd #4 (OK): 2 EPA Violations. https://zipcheckup.com/water-system/ok3006809/
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title = {{Sequoyah Company Rwd #4 (OK): 2 EPA Violations}},
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url = {https://zipcheckup.com/water-system/ok3006809/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Sequoyah Company Rwd #4 (EPA ID: OK3006809) - request the latest Consumer Confidence Report or ask about specific contaminants.