Dewey Company Rwd #3
EPA ID: OK2007707 ยท 755 people served ยท 5 ZIP codes
ZipCheckup's reading of EPA SDWIS for Dewey Company Rwd #3 (OK2007707): 4 unresolved EPA violations on record. Right now, Dewey Company Rwd #3 shows 4 EPA violations marked active and unresolved - the provider continues to supply approximately 755 residents while each finding awaits closure.
Data: EPA SDWIS
Service Area Map
Coverage area for Dewey Company Rwd #3 Source: EPA SDWIS service area boundaries.
Service area boundary - Grade B
Service Area Demographics
The Dewey Company Rwd #3 serves a community with a median household income of $65,454 and an estimated 17,663 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.
Environmental Justice Note: 78% 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.
๐ง Where Does Your Water Come From?
Dewey Company Rwd #3'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 Dewey Company Rwd #3 compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 2 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 2 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Surface Water Treatment Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2034 at 2 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2105 at 2 mg/L exceeds the EPA maximum of mg/L.
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter โComparable 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
Dewey Company Rwd #3 (EPA ID: OK2007707) is a community water system in Oklahoma that serves approximately 755 people from groundwater sources.
This system provides water to 5 ZIP codes across 5 communities.
ZIP-Area Home Safety Context: B (84/100)
This is the average Home Safety Score for 1 of 5 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 8 resolved, 2 archived, 2 addressed, and 2 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 |
|---|---|---|---|
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Unaddressed (current) |
| January 1, 2025 | Haloacetic Acids (HAA5) | Non-health-based | Archived |
| January 1, 2025 | Total Trihalomethanes (TTHM) | Non-health-based | Archived |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Addressed (current) |
| October 17, 2024 | Stage 2 DBP Rule | Non-health-based | Addressed (current) |
| July 1, 2024 | Surface Water Treatment Rule | Non-health-based | Unaddressed (current) |
| October 2, 2022 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2022 | Contaminant 2034 | Non-health-based | Resolved |
| July 1, 2022 | Contaminant 2034 | Non-health-based | Resolved |
| July 1, 2022 | Contaminant 2105 | Non-health-based | Resolved |
| July 1, 2022 | Contaminant 2105 | Non-health-based | Resolved |
| July 1, 2022 | Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| July 1, 2022 | Total Trihalomethanes (TTHM) | Non-health-based | Resolved |
| July 1, 2021 | Surface Water Treatment Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Failure | 4 | No |
| Contaminant 2034 | Other Violation | 2 | No |
| Contaminant 2105 | Other Violation | 2 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | No |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.001 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 Dewey Company Rwd #3 (OK2007707) on EPA.gov.
Frequently Asked Questions
Is Dewey Company Rwd #3 water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current health-based noncompliance record for Dewey Company Rwd #3. Review the utility's current notices and EPA record. This system-level compliance history cannot determine conditions at a specific tap.
How many people does Dewey Company Rwd #3 serve?
Dewey Company Rwd #3 serves approximately 755 people across 5 ZIP codes in Oklahoma.
Where does Dewey Company Rwd #3 get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Dewey Company Rwd #3 (OK): 1 Health Violation. https://zipcheckup.com/water-system/ok2007707/
@misc{zipcheckup-water-system-ok2007707,
author = {{ZipCheckup}},
title = {{Dewey Company Rwd #3 (OK): 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ok2007707/}
}
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
Dewey Company Rwd #3 (EPA ID: OK2007707) - request the latest Consumer Confidence Report or ask about specific contaminants.