Community Water System · PWS OK1020903
Guthrie
Operator location Guthrie, Oklahoma - 73% of 83 violations are health-based (upper-third health share (> 23%)); surface water source; 9,925 served per SDWIS.
- 9,925
- People served (this PWS)
- 83
- EPA violations (this PWS)
- 61
- Health-based (this PWS)
- 4 PFAS
- UCMR5 (this PWS)
Guthrie standing, high SDWIS violation third
73% of 83 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 73% is upper-third health share (> 23%). UCMR5: middle-third PFAS panel (≤ 4 compounds). Population rank #4,718 of 29,740 among systems serving 500+.
The verdict
Guthrie sits in the upper third of the sitemap cohort by violation count (83), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (9,925; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 73% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 detected 4 PFAS compounds (middle-third PFAS panel (≤ 4 compounds)).
- #4,718 of 29,740
- Population · /systems
- #54 of 558
- Population · OK
- 83
- Total EPA violations on record
- 73%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 3,701
- County
- Logan
- School/Daycare
- No
- MCL Violations
- 28
- Monitoring Violations
- 18
- Treatment Tech Violations
- 29
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| CARBON, TOTAL | TT | 27 | 2021 |
| TTHM | MCL | 20 | 2004 |
| Chlorite | MR | 5 | 2005 |
| Coliform (TCR) | MCL | 4 | 1991 |
| Chlorine dioxide | MRDL | 4 | 2005 |
| Chlorite | MCL | 4 | 2021 |
| Arsenic | MR | 3 | 2007 |
| Interim Enhanced Surface Water Treatment Rule | MR | 3 | 2025 |
| Chlorine dioxide | MR | 3 | 2025 |
| Surface Water Treatment Rule | TT | 2 | 1994 |
| TTHM | MR | 2 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2025 |
Violation Count vs. the National Corpus
Guthrie has 83 recorded EPA violations, 69% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 31% carry more. 73% of this system's own violations are health-based (61 of 83), and it ranks #4,718 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
83 Around the middle fewer violations than 31% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 5 of 87 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| ADONA | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 8/25/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpA | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 8/25/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFMPA | 8/25/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFUnA | 8/25/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 8/25/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 8/25/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFBA | 8/25/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFNA | 8/25/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxA | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 8/25/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 8/25/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFPeA | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 8/25/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFPeS | 8/25/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 4:2 FTS | 8/25/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 8/25/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 7/7/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 7/7/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 7/7/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFTA | 7/7/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFUnA | 5/19/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| 6:2 FTS | 5/19/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 8:2 FTS | 5/19/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 5/19/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 5/19/2025 | 4.80 ppt | 3.00 ppt | Detected |
| PFMBA | 5/19/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 5/19/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 5/19/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| HFPO-DA | 5/19/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHxA | 5/19/2025 | 4.40 ppt | 3.00 ppt | Detected |
| PFBA | 5/19/2025 | 6.20 ppt | 5.00 ppt | Detected |
| 11Cl-PF3OUdS | 5/19/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 5/19/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 5/19/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 5/19/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 5/19/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 5/19/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 5/19/2025 | 3.80 ppt | 3.00 ppt | Detected |
| PFOA | 5/19/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 5/19/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 5/19/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
Health-based violations on Guthrie
61 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for OK1020903.
Sources: EPA SDWIS
Nationwide peers
83 violations · 9,925 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Guthrie
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Oklahoma compares on the same EPA violation measures. Oklahoma systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.