Willow Creek Mhp
EPA ID: OK2005535 · 99 people served · 1 ZIP code
In the most recent five-year monitoring window, Willow Creek Mhp posted zero EPA violations serving 99 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 2 (2024) to 2 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Willow Creek Mhp Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Willow Creek Mhp serves a community with a median household income of $80,117 and an estimated 11,542 residents across its service area. Approximately 42% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 46% 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?
Willow Creek Mhp's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 1% of homes in Oklahoma County, Oklahoma rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
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
Willow Creek Mhp (EPA ID: OK2005535) is a community water system in Oklahoma that serves approximately 99 people from groundwater sources.
This system serves ZIP code 73045 in Harrah.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
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
- 73045 — Harrah
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Willow Creek Mhp (OK2005535) on EPA.gov.
Frequently Asked Questions
Is Willow Creek Mhp water safe to drink?
Based on EPA records, Willow Creek Mhp has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Willow Creek Mhp serve?
Willow Creek Mhp serves approximately 99 people across 1 ZIP code in Oklahoma.
Where does Willow Creek Mhp get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.