Washington Company Rwd #7
EPA ID: OK3007415 · 258 people served · 1 ZIP code
Compared to the national average for mid-size utilities, Washington Company Rwd #7 sits well above the baseline — five years of EPA monitoring show no violations, no MCL exceedances, and no enforcement actions for the full service territory of 258 people.
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 1 (2021) to 3 (2025). The pattern suggests growing compliance challenges.
Service Area Demographics
The Washington Company Rwd #7 serves a community with a median household income of $55,968 and an estimated 5,270 residents across its service area. Approximately 73% 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?
Washington Company Rwd #7'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.
About 3% of homes in Washington County, Oklahoma rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 80th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 1 detection recorded.
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
Washington Company Rwd #7 (EPA ID: OK3007415) is a community water system in Oklahoma that serves approximately 258 people from surface water sources.
This system serves ZIP code 74029 in Dewey.
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
- 74029 — Dewey
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Washington Company Rwd #7 (OK3007415) on EPA.gov.
Frequently Asked Questions
Is Washington Company Rwd #7 water safe to drink?
Based on EPA records, Washington Company Rwd #7 has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Washington Company Rwd #7 serve?
Washington Company Rwd #7 serves approximately 258 people across 1 ZIP code in Oklahoma.
Where does Washington Company Rwd #7 get its water?
The primary water source is surface water.