Grady Company Rwd #6
EPA ID: OK3002603 · 3,930 people served · 12 ZIP codes
Where compliant utilities carry no open actions, Grady Company Rwd #6 shows 13 active EPA violations in the federal database for a service population of approximately 3,930.
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 15 (2021) to 6 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Grady Company Rwd #6 Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Grady Company Rwd #6 serves a community with a median household income of $62,881 and an estimated 72,910 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: 84% 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?
Grady Company Rwd #6'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 Grady 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 Grady Company Rwd #6 compares to EPA limits
What This Means For You
Benzene at 2 mg/L exceeds the EPA maximum of 0.005 mg/L.
Arsenic at 2 mg/L exceeds the EPA maximum of 0.01 mg/L.
Consumer Confidence Report Rule at 19 mg/L exceeds the EPA maximum of mg/L.
Revised Total Coliform Rule at 14 presence exceeds the EPA maximum of presence.
Total Trihalomethanes (TTHM) at 1 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. 4 detections recorded.
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
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
Grady Company Rwd #6 (EPA ID: OK3002603) is a community water system in Oklahoma that serves approximately 3,930 people from groundwater sources.
This system provides water to 12 ZIP codes across 12 communities.
Average Home Safety Score: B (79/100)
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 |
|---|---|---|---|
| August 1, 2025 | Total Coliform | Monitoring | Unresolved |
| August 1, 2025 | Revised Total Coliform Rule | Monitoring | Unresolved |
| August 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| July 1, 2025 | Surface Water Treatment Rule | Monitoring | Unresolved |
| July 1, 2025 | Revised Total Coliform Rule | Monitoring | Unresolved |
| June 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| June 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| May 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| May 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| April 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2959 | Monitoring | Resolved |
| February 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| January 1, 2025 | Benzene | Monitoring | Resolved |
| December 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| December 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Unresolved |
| October 1, 2024 | Benzene | Monitoring | Resolved |
| October 1, 2024 | Contaminant 4100 | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 19 | No |
| Revised Total Coliform Rule | Microbiological | 14 | No |
| Gross Alpha | Radionuclides | 7 | Yes |
| Contaminant 4100 | Other Violation | 5 | No |
| Stage 2 DBP Rule | Treatment Failure | 4 | Yes |
| Contaminant 2959 | Other Violation | 3 | No |
| Total Coliform | Microbiological | 3 | No |
| Arsenic | Inorganic | 2 | No |
| Contaminant 2042 | Other Violation | 2 | No |
| Benzene | Organic | 2 | No |
| Surface Water Treatment Rule | Treatment Failure | 2 | No |
| Contaminant 2020 | Other Violation | 1 | No |
| Contaminant 2051 | Other Violation | 1 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
| Contaminant 2946 | Other Violation | 1 | No |
Health Risk Details
Gross Alpha Particle Activity (EPA limit: pCi/L)
Increased cancer risk from radioactive particles At-risk groups: long-term residents in areas with uranium or radium-rich geology, people on private wells in western US.
Removal methods: reverse osmosis, ion exchange (anion exchange for radium), lime softening. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 73042 | 0.0019 mg/L | No | N/A |
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.
- 73004 — Amber
- 73005 — Anadarko
- 73010 — Blanchard
- 73011 — Bradley
- 73017 — Cement
- 73018 — Chickasha
- 73042 — Gracemont
- 73059 — Minco
- 73067 — Ninnekah
- 73079 — Pocasset
- 73089 — Tuttle
- 73092 — Verden
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Grady Company Rwd #6 (OK3002603) on EPA.gov.
Frequently Asked Questions
Is Grady Company Rwd #6 water safe to drink?
Grady Company Rwd #6 has recorded 9 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 Grady Company Rwd #6 serve?
Grady Company Rwd #6 serves approximately 3,930 people across 12 ZIP codes in Oklahoma.
Where does Grady Company Rwd #6 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 GRADY CO RWD #6 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: GRADY CO RWD #6 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.
Watershed exposure sources reported
Land-use and natural conditions identified in the utility's source-water assessment as potential contamination sources upstream of treatment.
Treatment classification and chemical list sourced from GRADY CO RWD #6 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.
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) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
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).
-
monitoring · CONSUMER CONFIDENCE RULE2024-07-01/2024-07-15
CCR REPORT
-
monitoring · CHLORINE2024-01-01/2024-01-31
MONITORING, ROUTINE (DBP), MAJOR
-
monitoring · DBP STAGE 22024-01-01/2024-12-31
MONITORING, ROUTINE (DBP), MAJOR
-
monitoring · HEXACHLOROCYCLOPENTADIENE2024-01-01/2024-12-31
MONITORING, ROUTINE MAJOR
-
monitoring · ATRAZINE2024-10-01/2024-12-31
MONITORING, ROUTINE MAJOR
-
monitoring · ENDRIN2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · BHC-GAMMA2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · METHOXYCHLOR2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · DALAPON2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · DIQUAT2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · ENDOTHALL2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · GLYPHOSATE2024-01-01/2024-12-31
MONITORING, ROUTIME MINOR
-
monitoring · DI(2-ETHYLHEXYL) ADIPATE2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · OXAMYL2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · DI(2-ETHYLHEXYL) PHTHALATE2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · PICLORAM2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · DINOSEB2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · CARBOFURAN2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · HEPTACHLOR2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · HEPTACHLOR EPOXIDE2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · 2,4-D2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · 2,4,5-TP2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · HEXACHLOROBENZENE2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · BENZO(A)PYRENE2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · PENTACHLOROPHENOL2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · TOTAL POLYCHLORINATED BIPHENYLS (PCB)2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · 1,2-DIBROMO-3-CHLOROPROPANE2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR, A sample was missing.
-
monitoring · ETHYLENE DIBROMIDE2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR
-
monitoring · DISINFECTANT BY-PRODUCT2024-01-01/2024-12-31
MONITORING, ROUTINE MINOR, 2 samples missing
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monitoring · TOTAL COLIFORM2023-09-01/2023-09-30
MONITORING, ROUTINE MAJOR, 4 samples missing
-
monitoring · ASBESTOS2023-01-01/2023-12-31
MONITORING, ROUTINE, 1 sample missing
-
monitoring · CHLORINE2024-09-01/2023-09-30
MONITORING, ROUTINE (DBP), MAJOR, 4 samples missing
Violations record from GRADY CO RWD #6 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 monitoring for multiple contaminants during 2024
- Missed monitoring for Asbestos in 2023
- Consumer Confidence Rule violation July 1-15, 2024
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.
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
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
Grady Company Rwd #6 (EPA ID: OK3002603) — request the latest Consumer Confidence Report or ask about specific contaminants.