Kingfisher
EPA ID: OK2003702 ยท 5,073 people served ยท 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for Kingfisher (OK2003702): 19 past health-based violations, since resolved. Since the flagged events, Kingfisher resolved all 186 violations - compliant today, 5,073 residents served.
Data: EPA SDWIS
Service Area Map
Coverage area for Kingfisher Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Kingfisher serves a community with a median household income of $61,750 and an estimated 8,141 residents across its service area. Approximately 66% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
๐ง Where Does Your Water Come From?
Kingfisher'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.
Infrastructure Risk
Detected Contaminants
How Kingfisher compares to EPA limits
What This Means For You
Contaminant 2015 at 7 mg/L exceeds the EPA maximum of 0.0005 mg/L. Probable carcinogen; liver & thyroid damage, immune suppression. Consider granular activated carbon (GAC) filtration.
Atrazine at 5 mg/L exceeds the EPA maximum of 0.003 mg/L. Endocrine disruption, cardiovascular & reproductive effects. Consider granular activated carbon (GAC) filtration.
Benzene at 5 mg/L exceeds the EPA maximum of 0.005 mg/L.
Contaminant 2110 at 5 mg/L exceeds the EPA maximum of 0.005 mg/L. Leukemia & blood cancers (known carcinogen). Consider granular activated carbon (GAC) filtration.
Haloacetic Acids (HAA5) at 22 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Contaminant 2015 was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter โComparable 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
Kingfisher (EPA ID: OK2003702) is a community water system in Oklahoma that serves approximately 5,073 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 167 resolved, 19 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| July 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| July 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| April 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| April 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| April 1, 2025 | Total Trihalomethanes (TTHM) | Non-health-based | Archived |
| January 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| January 1, 2025 | Contaminant 2931 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 2946 | Non-health-based | Resolved |
| December 30, 2024 | Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Non-health-based | Resolved |
| October 1, 2024 | Haloacetic Acids (HAA5) | Health-based | Archived |
| October 1, 2024 | Haloacetic Acids (HAA5) | Health-based | Archived |
| October 1, 2024 | Contaminant 2005 | Non-health-based | Resolved |
| October 1, 2024 | Contaminant 2010 | Non-health-based | Resolved |
| October 1, 2024 | Contaminant 2015 | Non-health-based | Resolved |
| October 1, 2024 | Contaminant 2042 | Non-health-based | Resolved |
| October 1, 2024 | Contaminant 2065 | Non-health-based | Resolved |
| October 1, 2024 | Contaminant 2067 | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 22 | Yes |
| Contaminant 2005 | Other Violation | 7 | No |
| Contaminant 2010 | Other Violation | 7 | No |
| Contaminant 2015 | Other Violation | 7 | No |
| Contaminant 2065 | Other Violation | 7 | No |
| Contaminant 2067 | Other Violation | 7 | No |
| Contaminant 2274 | Other Violation | 7 | No |
| Contaminant 2042 | Other Violation | 6 | No |
| Contaminant 2931 | Other Violation | 6 | No |
| Contaminant 2946 | Other Violation | 6 | No |
| Contaminant 2020 | Other Violation | 5 | No |
| Contaminant 2031 | Other Violation | 5 | No |
| Contaminant 2032 | Other Violation | 5 | No |
| Contaminant 2033 | Other Violation | 5 | No |
| Contaminant 2034 | Other Violation | 5 | No |
Health Risk Details
Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)
Cancer risk; reproductive & developmental effects At-risk groups: pregnant women, infants, long-term consumers of chlorinated municipal water.
Removal methods: granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter โ
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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 $20โ$50 (DIY kit) ยท Professional inspection: $150โ$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking โ 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 Kingfisher (OK2003702) on EPA.gov.
Frequently Asked Questions
Is Kingfisher water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Kingfisher; its 186 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Kingfisher serve?
Kingfisher serves approximately 5,073 people across 3 ZIP codes in Oklahoma.
Where does Kingfisher get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ per-system federal sampling, 2023โ2025. EPA UCMR5 monitoring program โ
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
- #25 / 100 Most Unresolved Health Violations (U.S.)
- #12 / 50 Most Unresolved Health Violations (Oklahoma)
- #18 / 50 Highest Exposure Burden (Oklahoma)
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Kingfisher (OK): 19 Health Violations. https://zipcheckup.com/water-system/ok2003702/
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author = {{ZipCheckup}},
title = {{Kingfisher (OK): 19 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ok2003702/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report โ
Contact your utility
Kingfisher (EPA ID: OK2003702) - request the latest Consumer Confidence Report or ask about specific contaminants.