Community Water System · PWS AK2271041
Quinhagak Water System
Operator location Quinhagak, Alaska - smaller served population (≤ 999) at 724 people served; 994 SDWIS violations on record from surface water sources.
- 724
- People served (this PWS)
- 994
- EPA violations (this PWS)
- 98
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Quinhagak Water System standing, high SDWIS violation third
724 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 10% is middle-third health share (≤ 23%). Population rank #23,881 of 29,740 among systems serving 500+.
The verdict
Quinhagak Water System sits in the upper third of the sitemap cohort by violation count (994), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (724; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 10% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #23,881 of 29,740
- Population · /systems
- #101 of 164
- Population · AK
- 994
- Total EPA violations on record
- 10%
- 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
- Native American
- Connections
- 170
- County
- Bethel Census Area
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 703
- Treatment Tech Violations
- 98
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 200 | 2023 |
| Surface Water Treatment Rule | TT | 95 | 2024 |
| E. COLI | MR | 64 | 2022 |
| TTHM | MR | 56 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 51 | 2023 |
| Coliform (TCR) | MR | 33 | 2014 |
| Consumer Confidence Rule | Other | 17 | 2021 |
| Arsenic | MR | 12 | 2004 |
| Interim Enhanced Surface Water Treatment Rule | MR | 12 | 2020 |
| Nitrate | MR | 11 | 2004 |
| Barium | MR | 9 | 1990 |
| Fluoride | MR | 9 | 1990 |
| Cadmium | MR | 9 | 1990 |
| Selenium | MR | 9 | 1990 |
| Chromium | MR | 9 | 1990 |
| Mercury | MR | 9 | 1990 |
| Toluene | MR | 9 | 2004 |
| Lead and Copper Rule | MR | 7 | 2024 |
| Revised Total Coliform Rule | MON | 7 | 2020 |
| Endrin | MR | 6 | 2016 |
| 2,4-D | MR | 6 | 2016 |
| Methoxychlor | MR | 6 | 2016 |
| Toxaphene | MR | 6 | 2016 |
| Chlorine | MR | 6 | 2017 |
| BHC-GAMMA | MR | 6 | 2016 |
| 2,4,5-TP | MR | 6 | 2016 |
| p-Dichlorobenzene | MR | 4 | 1998 |
| Carbon tetrachloride | MR | 4 | 1998 |
| Trichloroethylene | MR | 4 | 1998 |
| Benzene | MR | 4 | 1998 |
Violation Count vs. the National Corpus
Quinhagak Water System has 994 recorded EPA violations, 99% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 1% carry more. 10% of this system's own violations are health-based (98 of 994), and it ranks #23,881 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)
994 Higher than most more violations than 99% 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
Population served record for Quinhagak Water System
EPA SDWIS lists 724 people served and 170 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
994 violations · 724 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 smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Quinhagak 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.