Oilton
EPA ID: OK2001901 · 1,435 people served · 2 ZIP codes
Right now, Oilton shows 6 EPA violations marked active and unresolved — the provider continues to supply approximately 1,435 residents while each finding awaits closure.
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 5 (2021) to 4 (2024). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Oilton Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Oilton serves a community with a median household income of $45,361 and an estimated 3,196 residents across its service area. Approximately 62% 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?
Oilton'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 Pawnee 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
Detected Contaminants
How Oilton compares to EPA limits
What This Means For You
Contaminant 2959 at 7 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2931 at 1 mg/L exceeds the EPA maximum of mg/L.
Total Organic Carbon at 1 mg/L exceeds the EPA maximum of mg/L.
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
Oilton (EPA ID: OK2001901) is a community water system in Oklahoma that serves approximately 1,435 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Average Home Safety Score: B (74/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| January 1, 2023 | Contaminant 2931 | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 2959 | Other Violation | 7 | No |
| Surface Water Treatment Rule | Treatment Failure | 2 | No |
| Contaminant 2931 | Other Violation | 1 | No |
| Total Organic Carbon | Disinfection Byproducts | 1 | No |
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
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 Oilton (OK2001901) on EPA.gov.
Frequently Asked Questions
Is Oilton water safe to drink?
Oilton has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Oilton serve?
Oilton serves approximately 1,435 people across 2 ZIP codes in Oklahoma.
Where does Oilton get its water?
The primary water source is groundwater.
Contact Your Water Utility
Public-record contact information for the water utility serving this system. Use these channels to request water quality reports, ask about service, or report issues directly.
Contact information from OILTON Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility, does not act as its agent, and does not provide customer support for it. Contact details shown are public-record information from CCR filings. For service issues, contact the utility directly using the information above.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: OILTON Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
Treatment regime
How this utility classifies its treatment process and what each reported treatment chemical does.
Treatment chemicals and what each one does
Chemical names are reported verbatim by the utility. Purpose categories are ZipCheckup annotations based on standard drinking-water treatment practice.
Treatment classification and chemical list sourced from OILTON Consumer Confidence Report.
Treatment intensity is a ZipCheckup-derived classification based on the chemicals and processes the utility reports. Chemicals and contamination sources are taken verbatim from the utility's CCR filing. Routine federal monitoring and contaminant testing shown elsewhere on this page determine whether the water meets safety standards, not the treatment classification.
Notable events and violations
This section summarizes events the utility chose to disclose in its most recent Consumer Confidence Report, plus any federal compliance violations the utility recorded against itself. Both lists are utility-authored — ZipCheckup does not audit, judge, or reorder them.
Federal compliance violations on record
These entries are taken verbatim from the utility's CCR violations section. EPA defines four broad violation categories: Maximum Contaminant Level (MCL), Treatment Technique (TT), Monitoring & Reporting (M&R), and Public Notification (PN).
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reporting · CCR Adequacy/Availability/Content10/2/2023
CCR ADEQUACY/AVAILABILITY/CONTENT
-
monitoring · disinfectant by-product (Stage 2)1/1/2023-12/31/2023
MONITORING, ROUTINE (DBP), MAJOR
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monitoring · Chlorine6/1/2023-6/30/2023
MONITORING, ROUTINE (DBP), MAJOR
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monitoring · SOC (Regulated)1/1/2023-3/31/2023
MONITORING, ROUTINE MAJOR
-
monitoring · Nitrate-Nitrite1/1/2023-12/31/2023
MONITORING, ROUTINE MAJOR
-
monitoring · VOC (Corrected)1/1/2023-12/31/2023
MONITORING, ROUTINE MAJOR
-
monitoring · SOC (Regulated)4/1/2023-6/30/2023
MONITORING, ROUTINE MAJOR
-
monitoring · SOC (Regulated)7/1/2023-9/30/2023
MONITORING, ROUTINE MAJOR
-
monitoring · SOC (Regulated)10/1/2023-12/31/2023
MONITORING, ROUTINE MAJOR
-
monitoring · E. Coli6/1/2023-6/30/2023
MONITORING, ROUTINE, MINOR (RTCR)
-
monitoring · Chlorine6/1/2023-6/30/2023
MONITORING, MISSING SAMPLES - 2 samples required, 2 missing
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monitoring · Disinfectant by-product1/1/2023-12/31/2023
MONITORING, ROUTINE MAJOR - REQUIRED: 1, MISSING: 1
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monitoring · Total Coliform6/1/2023-6/30/2023
MONITORING, ROUTINE MINOR - REQUIRED: 2, MISSING: 1
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monitoring · Nitrate-Nitrite1/1/2023-12/31/2023
MONITORING, ROUTINE MAJOR - REQUIRED: 1, MISSING: 1
-
monitoring · SOC (Regulated)1/1/2023-3/31/2023
MONITORING, ROUTINE MAJOR - REQUIRED: 1, MISSING: 1
Violations record from OILTON Consumer Confidence Report.
Notable events from the utility's CCR
These bullet entries are the utility's own narration of operational, regulatory, or infrastructure events during the reporting period.
- Monitoring violations for Chlorine (2 samples required, 2 missing 6/1/2023-6/30/2023)
- Monitoring violations for Disinfectant by-product (1 sample required, 1 missing 1/1/2023-12/31/2023)
- Monitoring violations for Total Coliform (2 samples required, 1 missing 6/1/2023-6/30/2023)
- Monitoring violations for Nitrate-Nitrite (1 sample required, 1 missing 1/1/2023-12/31/2023)
- Multiple monitoring violations for SOC and VOC contaminants (samples missing for multiple periods)
- E. Coli monitoring violation (1 of 2 samples missing 6/1/2023-6/30/2023)
ZipCheckup note: items above reflect what the utility published in its most recent CCR. Federal violation records are also tracked separately by the EPA Safe Drinking Water Information System (SDWIS) — the SDWIS record is the authoritative federal source for any specific regulatory action.
Frequently Asked Questions
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
Oilton (EPA ID: OK2001901) — request the latest Consumer Confidence Report or ask about specific contaminants.