Community Water System · PWS AK2240448
Kenai Water System
Operator location Kenai, Alaska - larger served population (> 3,309) at 5,700 people served; 387 SDWIS violations on record from groundwater sources.
- 5,700
- People served (this PWS)
- 387
- EPA violations (this PWS)
- 4
- Health-based (this PWS)
- No PFAS
- UCMR5 (this PWS)
Kenai Water System standing, high SDWIS violation third
5,700 people served (SDWIS) - larger served population (> 3,309). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 1% is middle-third health share (≤ 23%). UCMR5: UCMR5 tested, none detected. Population rank #7,069 of 29,740 among systems serving 500+.
The verdict
Kenai Water System sits in the upper third of the sitemap cohort by violation count (387), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (5,700; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 1% (middle-third health share (≤ 23%)). UCMR5 tested this system and reported no PFAS above the minimum reporting level.
- #7,069 of 29,740
- Population · /systems
- #18 of 164
- Population · AK
- 387
- Total EPA violations on record
- 1%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,900
- County
- Kenai Peninsula Borough
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 289
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 21 | 2018 |
| Arsenic | MR | 9 | 2020 |
| Coliform (TCR) | MR | 9 | 2010 |
| 1,2,4-Trichlorobenzene | MR | 9 | 2017 |
| p-Dichlorobenzene | MR | 9 | 2017 |
| o-Dichlorobenzene | MR | 9 | 2017 |
| Toluene | MR | 9 | 2017 |
| Tetrachloroethylene | MR | 9 | 2017 |
| Ethylbenzene | MR | 9 | 2017 |
| 1,2-Dichloropropane | MR | 9 | 2017 |
| 1,1-Dichloroethylene | MR | 9 | 2017 |
| Trichloroethylene | MR | 9 | 2017 |
| 1,1,2-Trichloroethane | MR | 9 | 2017 |
| 1,1,1-Trichloroethane | MR | 9 | 2017 |
| CHLOROBENZENE | MR | 9 | 2017 |
| Styrene | MR | 9 | 2017 |
| trans-1,2-Dichloroethylene | MR | 9 | 2017 |
| Benzene | MR | 9 | 2017 |
| 1,2-Dichloroethane | MR | 9 | 2017 |
| Xylenes, Total | MR | 9 | 2017 |
| Carbon tetrachloride | MR | 9 | 2017 |
| cis-1,2-Dichloroethylene | MR | 9 | 2017 |
| DICHLOROMETHANE | MR | 8 | 2017 |
| Cadmium | MR | 7 | 2020 |
| Chromium | MR | 7 | 2020 |
| Mercury | MR | 7 | 2020 |
| Selenium | MR | 7 | 2020 |
| Fluoride | MR | 7 | 2020 |
| Barium | MR | 7 | 2020 |
| Vinyl chloride | MR | 7 | 2017 |
Violation Count vs. the National Corpus
Kenai Water System has 387 recorded EPA violations, 93% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 7% carry more. 1% of this system's own violations are health-based (4 of 387), and it ranks #7,069 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)
387 Higher than most more violations than 93% 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. 0 of 58 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFHpS | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 5/20/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NFDHA | 5/20/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFPeS | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFEESA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 4:2 FTS | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 5/20/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHxA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 8:2 FTS | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTA | 4/9/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 4/9/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 4/9/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 4/9/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFHxA | 10/7/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 10/7/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 10/7/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 10/7/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 10/7/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 10/7/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 10/7/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| NMeFOSAA | 10/7/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 10/7/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 10/7/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 10/7/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFBS | 10/7/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 10/7/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHpS | 10/7/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 10/7/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 10/7/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFEESA | 10/7/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 10/7/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 10/7/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFMPA | 10/7/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 10/7/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
Population served record for Kenai Water System
EPA SDWIS lists 5,700 people served and 1,900 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
387 violations · 5,700 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 Kenai Water System
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Alaska compares on the same EPA violation measures. Alaska 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.