Chelsea Economic Dev. Authority
EPA ID: OK1021504 · 1,964 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Chelsea Economic Dev. Authority (OK1021504): no drinking-water violations recorded since 2021. EPA lists no violations for Chelsea Economic Dev. Authority, serving 1,964 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Chelsea Economic Dev. Authority Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Chelsea Economic Dev. Authority have a median household income of $59,701 and about 5,787 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 56% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 100% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). 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?
Chelsea Economic Dev. Authority'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
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
Chelsea Economic Dev. Authority (EPA ID: OK1021504) is a community water system in Oklahoma that serves approximately 1,964 people from surface water sources.
This system serves ZIP code 74016 in Chelsea.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0043 mg/L | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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.
- 74016 - Chelsea
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Chelsea Economic Dev. Authority (OK1021504) on EPA.gov.
Frequently Asked Questions
Is Chelsea Economic Dev. Authority water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Chelsea Economic Dev. Authority in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Chelsea Economic Dev. Authority serve?
Chelsea Economic Dev. Authority serves approximately 1,964 people across 1 ZIP code in Oklahoma.
Where does Chelsea Economic Dev. Authority get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Chelsea Economic Dev. Authority Water Quality Report, OK. https://zipcheckup.com/water-system/ok1021504/
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title = {{Chelsea Economic Dev. Authority Water Quality Report, OK}},
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url = {https://zipcheckup.com/water-system/ok1021504/}
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