Coweta Pwa
EPA ID: OK1021509 ยท 9,450 people served ยท 2 ZIP codes
ZipCheckup's reading of EPA SDWIS for Coweta Pwa (OK1021509): 1 unresolved EPA violation on record. Right now, Coweta Pwa shows 1 EPA violation marked active and unresolved - the provider continues to supply approximately 9,450 residents while each finding awaits closure.
Data: EPA SDWIS
Service Area Map
Coverage area for Coweta Pwa Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Coweta Pwa serves a community with a median household income of $83,824 and an estimated 59,423 residents across its service area.
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.
๐ Where Does Your Water Come From?
Coweta Pwa'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.
Infrastructure Risk
Detected Contaminants
How Coweta Pwa compares to EPA limits
What This Means For You
PFOA at 1 mg/L exceeds the EPA maximum of 0.000004 mg/L.
PFNA at 1 mg/L exceeds the EPA maximum of 0.00001 mg/L.
Chlorodibromomethane at 1 mg/L exceeds the EPA maximum of 0.002 mg/L. Liver cancer, brain cancer (known carcinogen). Consider granular activated carbon (GAC) filtration.
Haloacetic Acids (HAA5) at 23 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Total Trihalomethanes (TTHM) at 13 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 12 detections recorded. 4 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Chlorodibromomethane 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
Coweta Pwa (EPA ID: OK1021509) is a community water system in Oklahoma that serves approximately 9,450 people from surface water sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 24 resolved, 50 archived, 0 addressed, and 1 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 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| July 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Archived |
| July 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Archived |
| July 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| July 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| June 30, 2025 | Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| June 30, 2025 | Total Trihalomethanes (TTHM) | Non-health-based | Resolved |
| April 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Archived |
| April 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Archived |
| April 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| April 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| January 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Archived |
| January 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| January 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Archived |
| January 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Archived |
| December 30, 2024 | Total Trihalomethanes (TTHM) | 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 | Total Trihalomethanes (TTHM) | Health-based | Archived |
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 | 23 | Yes |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 13 | Yes |
| Fecal Coliform | Microbiological | 4 | Yes |
| E. coli | Microbiological | 3 | Yes |
| Contaminant 2034 | Other Violation | 2 | No |
| Contaminant 2042 | Other Violation | 2 | No |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Contaminant 2037 | Other Violation | 1 | No |
| PFOA | PFAS | 1 | No |
| PFNA | PFAS | 1 | No |
| Monochloroacetic Acid | Disinfection Byproducts | 1 | No |
| Dichloroacetic Acid | Disinfection Byproducts | 1 | No |
| Bromodichloromethane | Disinfection Byproducts | 1 | No |
| Dibromochloromethane | Disinfection Byproducts | 1 | No |
| Bromoform | Disinfection Byproducts | 1 | 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
Total Trihalomethanes (TTHM) (EPA limit: 0.08 mg/L)
Bladder & rectal cancer risk; reproductive concerns At-risk groups: pregnant women, long-term consumers of chlorinated water, people who frequently shower in chlorinated water.
Removal methods: granular activated carbon (GAC), carbon block filter, point-of-entry aeration. Find the right filter โ
E. coli (EPA limit: Zero tolerance (any positive sample triggers immediate action))
Severe GI illness; potentially fatal kidney failure in children At-risk groups: children under 5, elderly, immunocompromised individuals, pregnant women.
Removal methods: UV disinfection (99.99%), chlorination, 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 Coweta Pwa (OK1021509) on EPA.gov.
Frequently Asked Questions
Is Coweta Pwa water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Coweta Pwa serve?
Coweta Pwa serves approximately 9,450 people across 2 ZIP codes in Oklahoma.
Where does Coweta Pwa get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below the current state-enforceable MCL.
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.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Coweta Pwa (OK): 33 Health Violations. https://zipcheckup.com/water-system/ok1021509/
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author = {{ZipCheckup}},
title = {{Coweta Pwa (OK): 33 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ok1021509/}
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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
Coweta Pwa (EPA ID: OK1021509) - request the latest Consumer Confidence Report or ask about specific contaminants.