Calumet
EPA ID: OK2000904 · 600 people served · 3 ZIP codes
Even as other utilities in the region logged violations, Calumet kept a clean EPA record — five years, no issues, 600 people served.
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 4 (2023) to 19 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Calumet Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Calumet serves a community with a median household income of $60,433 and an estimated 28,482 residents across its service area. Approximately 65% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 49% 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?
Calumet'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 Canadian 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
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 2 detections 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
Calumet (EPA ID: OK2000904) is a community water system in Oklahoma that serves approximately 600 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
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
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 Calumet (OK2000904) on EPA.gov.
Frequently Asked Questions
Is Calumet water safe to drink?
Based on EPA records, Calumet has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Calumet serve?
Calumet serves approximately 600 people across 3 ZIP codes in Oklahoma.
Where does Calumet get its water?
The primary water source is groundwater.