Perry Water & Light Department
EPA ID: OK1021206 · 5,230 people served · 1 ZIP code
The EPA enforcement database lists 32 active violations for Perry Water & Light Department — a provider that delivers drinking water to approximately 5,230 people and has not yet formally resolved those findings.
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 3 (2022) to 2 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Perry Water & Light Department Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The Perry Water & Light Department serves a community with a median household income of $67,588 and an estimated 6,235 residents across its service area. Approximately 74% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Perry Water & Light Department'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 4% of homes in Noble 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 Perry Water & Light Department compares to EPA limits
What This Means For You
Contaminant 1009 at 17 mg/L exceeds the EPA maximum of 0.004 mg/L. Intestinal damage, bone damage. Consider reverse osmosis filtration.
Arsenic at 1 mg/L exceeds the EPA maximum of 0.01 mg/L.
Haloacetic Acids (HAA5) at 4 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 3 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Fecal Coliform at 26 presence exceeds the EPA maximum of presence.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 1 detection recorded.
Contaminant 1009 was detected in this water system. reverse osmosis 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
Perry Water & Light Department (EPA ID: OK1021206) is a community water system in Oklahoma that serves approximately 5,230 people from surface water sources.
This system serves ZIP code 73077 in Perry.
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 |
|---|---|---|---|
| July 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Unresolved |
| April 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Unresolved |
| December 30, 2024 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| November 1, 2024 | Fecal Coliform | Monitoring | Unresolved |
| November 1, 2024 | Contaminant 1009 | Monitoring | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Unresolved |
| October 1, 2024 | Fecal Coliform | Monitoring | Unresolved |
| October 1, 2024 | Contaminant 1008 | Monitoring | Resolved |
| October 1, 2024 | Haloacetic Acids (HAA5) | Health-based | Resolved |
| August 1, 2024 | Fecal Coliform | Monitoring | Resolved |
| August 1, 2024 | Contaminant 1009 | Monitoring | Resolved |
| July 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| July 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2024 | Chlorite | Health-based | Resolved |
| May 1, 2024 | Contaminant 1009 | Monitoring | Resolved |
| April 1, 2024 | Chlorite | Health-based | Resolved |
| February 1, 2024 | Contaminant 1009 | Monitoring | Unresolved |
| January 1, 2024 | Chlorite | Health-based | Unresolved |
| November 1, 2023 | Contaminant 1009 | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Fecal Coliform | Microbiological | 26 | No |
| Contaminant 1009 | Other Violation | 17 | No |
| Chlorite | Disinfection Byproducts | 17 | Yes |
| Consumer Confidence Report Rule | Reporting Failure | 16 | No |
| Contaminant 1008 | Other Violation | 9 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 4 | Yes |
| Lead and Copper Rule | Treatment Failure | 4 | No |
| Revised Total Coliform Rule | Microbiological | 4 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 3 | No |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Surface Water Treatment Rule | Treatment Failure | 2 | No |
| Arsenic | Inorganic | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
Health Risk Details
Chlorite (EPA limit: 1 mg/L)
Anemia and nervous system effects in infants and children At-risk groups: infants, developing fetuses, people with G6PD deficiency.
Removal methods: ferrous sulfate reduction, activated carbon, reverse osmosis. Find the right filter →
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 →
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 73077 | 0.006 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.
- 73077 — Perry
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Perry Water & Light Department (OK1021206) on EPA.gov.
Frequently Asked Questions
Is Perry Water & Light Department water safe to drink?
Perry Water & Light Department has recorded 16 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 Perry Water & Light Department serve?
Perry Water & Light Department serves approximately 5,230 people across 1 ZIP code in Oklahoma.
Where does Perry Water & Light Department 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 PERRY WATER & LIGHT DEPT 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: PERRY WATER & LIGHT DEPT 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 PERRY WATER & LIGHT DEPT 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: 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) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
PFAS Substances Detected in This System
This water system's Consumer Confidence Report disclosed the following PFAS compounds. Levels are from the utility's most recent reporting cycle.
In April 2024, EPA finalized the first National Primary Drinking Water Regulation for six PFAS. Public water systems have until 2029 to comply. EPA — PFAS regulation overview →
Source: Consumer Confidence Report disclosed by PERRY WATER & LIGHT DEPT.
ZipCheckup is not affiliated with this water utility. PFAS detection data is sourced from public Consumer Confidence Reports filed by the utility itself.
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).
-
monitoring · CHLORINE2024-07-01/2024-07-31
Monitoring, routine (DBP), major - 6 missing samples
-
monitoring · CHLORINE DIOXIDE2024-10-01/2024-10-31
Monitoring, routine (DBP), major - 31 missing samples
-
monitoring · CHLORITE2024-05-01/2024-05-31
Monitoring, routine (DBP), major - 3 missing samples
-
monitoring · CHLORITE2024-02-01/2024-02-29
Monitoring, routine (DBP), major - 3 missing samples
-
monitoring · TOTAL COLIFORM2024-07-01/2024-07-31
Monitoring, major (RTCR) - 6 missing samples
-
treatment technique · TTHM2024-12-30
MCL, LRAA - violation
-
treatment technique · TTHM2020-01-01/2020-12-31
FAILURE SUBMIT OEL REPORT FOR TTHM (this appears to be for previous year but listed under 2024 CCR)
-
treatment technique · CARBON, TOTAL2024-03-01/2024-03-31
Inadequate DBP precursor removal
-
treatment technique · CARBON, TOTAL2024-06-01/2024-06-30
Inadequate DBP precursor removal
-
treatment technique · CARBON, TOTAL2024-09-01/2024-09-30
Inadequate DBP precursor removal
-
monitoring · CHLORINE DIOXIDE2024-08-01/2024-08-31
Monitoring, (DBP) (CHL. DIOXIDE)
-
monitoring · CHLORINE DIOXIDE2024-10-01/2024-10-31
Monitoring, (DBP) (CHL. DIOXIDE)
-
monitoring · CHLORINE DIOXIDE2024-11-01/2024-11-30
Monitoring, (DBP) (CHL. DIOXIDE)
-
monitoring · CHLORITE2024-02-01/2024-02-29
Monitoring, routine (DBP), major
-
monitoring · CHLORITE2024-05-01/2024-05-31
Monitoring, routine (DBP), major
-
monitoring · CHLORITE2024-08-01/2024-08-31
Monitoring, routine (DBP), major
-
monitoring · CHLORINE2024-07-01/2024-07-31
Monitoring, routine (DBP), major
-
monitoring · TURBIDITY2024-08-01/2024-08-31
Monitoring, routine (IESWTR/LT1), major
-
monitoring · TURBIDITY2024-10-01/2024-10-31
Monitoring, routine (IESWTR/LT1), major
-
monitoring · TURBIDITY2024-11-01/2024-11-30
Monitoring, routine (IESWTR/LT1), major
-
monitoring · E. COLI2024-07-01/2024-07-31
Monitoring, routine, major (RTCR)
Violations record from PERRY WATER & LIGHT DEPT 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.
- Coliform bacteria present above allowed limit (November 2024)
- TTHM MCL violation (2024)
- Multiple monitoring violations (Chlorine Dioxide, Chlorite, Turbidity, Chlorine, Total Coliform) in 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.
- #36 / 100 Most Unresolved Health Violations (U.S.)
- #15 / 50 Most Unresolved Health Violations (Oklahoma)
- #21 / 50 Highest Exposure Burden (Oklahoma)
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
Perry Water & Light Department (EPA ID: OK1021206) — request the latest Consumer Confidence Report or ask about specific contaminants.