West Siloam Springs
EPA ID: OK3002109 · 877 people served · 1 ZIP code
Tallying the federal enforcement file for West Siloam Springs yields 4 open violations that have not been formally closed — each finding sits in the EPA database while the utility continues to deliver water to approximately 877 residents and works through the required corrective action process.
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 (2022) to 5 (2024). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for West Siloam Springs Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The West Siloam Springs serves a community with a median household income of $59,167 and an estimated 5,306 residents across its service area. Approximately 53% 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?
West Siloam Springs'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 Delaware County, Oklahoma rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points. Surface water sources near wastewater outfalls may face additional treatment challenges.
Infrastructure Risk
Detected Contaminants
How West Siloam Springs compares to EPA limits
What This Means For You
Total Trihalomethanes (TTHM) at 4 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Revised Total Coliform Rule at 6 presence exceeds the EPA maximum of presence.
Stage 1 DBP Rule at 5 mg/L exceeds the EPA maximum of mg/L.
Stage 2 DBP Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Total Trihalomethanes (TTHM) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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
West Siloam Springs (EPA ID: OK3002109) is a community water system in Oklahoma that serves approximately 877 people from surface water sources.
This system serves ZIP code 74338 in Colcord.
Average Home Safety Score: C (68/100)
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 |
|---|---|---|---|
| May 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| May 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| September 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| September 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2024 | Stage 1 DBP Rule | Monitoring | Resolved |
| April 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| April 1, 2024 | Contaminant 2105 | Monitoring | Resolved |
| January 1, 2024 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| October 1, 2023 | Stage 1 DBP Rule | Monitoring | Resolved |
| October 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| July 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Revised Total Coliform Rule | Microbiological | 6 | No |
| Stage 1 DBP Rule | Treatment Failure | 5 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | No |
| Stage 2 DBP Rule | Treatment Failure | 4 | Yes |
| Consumer Confidence Report Rule | Reporting Failure | 4 | No |
| Surface Water Treatment Rule | Treatment Failure | 2 | No |
| Contaminant 2105 | Other Violation | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 74338 | 0.0102 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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.
- 74338 — Colcord
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for West Siloam Springs (OK3002109) on EPA.gov.
Frequently Asked Questions
Is West Siloam Springs water safe to drink?
West Siloam Springs has recorded 2 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does West Siloam Springs serve?
West Siloam Springs serves approximately 877 people across 1 ZIP code in Oklahoma.
Where does West Siloam Springs get its water?
The primary water source is surface water.
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 WEST SILOAM SPRINGS 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: WEST SILOAM SPRINGS 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 WEST SILOAM SPRINGS 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.
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.
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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monitoring · LEAD & COPPER RULE2024-01-01/2024-06-30
FOLLOW-UP OR ROUTINE TAP M/R (LCR)
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monitoring · DBP STAGE 22024-01-01/2024-03-31
MONITORING, ROUTINE (DBP), MAJOR
-
monitoring · CHLORINE2024-05-01/2024-05-31
MONITORING, ROUTINE (DBP), MAJOR
-
monitoring · CHLORINE2024-09-01/2024-09-30
MONITORING, ROUTINE (DBP), MAJOR
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monitoring · CHLORINE2024-09-01/2024-09-30
MONITORing missing samples
-
monitoring · DISINFECTANT BY-PRODUCT2024-01-01/2024-03-31
MONITORING, ROUTINE (DBP), MAJOR
-
monitoring · DISINFECTANT BY-PRODUCT2023-10-01/2023-12-31
MONITORing missing samples
-
monitoring · DISINFECTANT BY-PRODUCT2023-07-01/2023-09-30
MONITORing missing samples
-
monitoring · LEAD & COPPER2024-01-01/2024-06-30
MONITORing missing samples
-
monitoring · LEAD & COPPER2023-01-01/2023-12-31
MONITORing missing samples
-
monitoring · CHLORINE2024-09-01/2024-09-30
MONITORing missing samples
-
CCR REPORT2024-07-01/2024-07-15
CCR REPORT missing
-
monitoring · ALKALINITY, TOTAL2024-08-01/2024-08-31
MONITORING, ROUTINE (DBP), MAJOR
-
monitoring · CARBON, TOTAL2024-08-01/2024-08-31
MONITORING, ROUTINE (DBP), MAJOR
-
monitoring · SODIUM2024-01-01/2024-12-31
MONITORING, ROUTINE MAJOR
-
treatment technique · CHLORINE2024-03-01/2024-03-31
RES DISINFECT CONCENTRATION (SWTR)
Violations record from WEST SILOAM SPRINGS 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.
- Missed multiple monitoring samples for chlorine, DBP, and lead/copper
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
West Siloam Springs (EPA ID: OK3002109) — request the latest Consumer Confidence Report or ask about specific contaminants.