Community Water System · PWS AK2340361
Shungnak Water System
Operator location Shungnak, Alaska - smaller served population (≤ 999) at 299 people served; 1,360 SDWIS violations on record from surface water sources.
- 299
- People served (this PWS)
- 1,360
- EPA violations (this PWS)
- 56
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Shungnak Water System standing, high SDWIS violation third
299 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 4% is middle-third health share (≤ 23%).
The verdict
Shungnak Water System sits in the upper third of the sitemap cohort by violation count (1,360), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (299; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 4% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 1,360
- Total EPA violations on record
- 4%
- Health-based (MCL / treatment failure)
- 299
- People served by this PWS (SDWIS)
- N/A
- PFAS compounds detected (UCMR5)
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
- 68
- County
- Northwest Arctic Borough
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 1,161
- Treatment Tech Violations
- 48
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 152 | 2025 |
| Surface Water Treatment Rule | TT | 48 | 2023 |
| Coliform (TCR) | MR | 34 | 2014 |
| Toxaphene | MR | 27 | 2001 |
| BHC-GAMMA | MR | 27 | 2001 |
| Methoxychlor | MR | 27 | 2001 |
| 2,4,5-TP | MR | 27 | 2001 |
| 2,4-D | MR | 26 | 2001 |
| Pentachlorophenol | MR | 24 | 2001 |
| Atrazine | MR | 24 | 2001 |
| Lead and Copper Rule | MR | 24 | 2025 |
| Heptachlor | MR | 24 | 2001 |
| Chlordane | MR | 24 | 2001 |
| Total Polychlorinated Biphenyls (PCB) | MR | 24 | 2001 |
| Heptachlor epoxide | MR | 23 | 2001 |
| Nitrate | MR | 22 | 2022 |
| Interim Enhanced Surface Water Treatment Rule | MR | 21 | 2025 |
| ETHYLENE DIBROMIDE | MR | 14 | 2001 |
| Endrin | MR | 14 | 2001 |
| Arsenic | MR | 14 | 2008 |
| 1,2,4-Trichlorobenzene | MR | 13 | 2023 |
| Xylenes, Total | MR | 13 | 2023 |
| Tetrachloroethylene | MR | 13 | 2023 |
| cis-1,2-Dichloroethylene | MR | 13 | 2023 |
| trans-1,2-Dichloroethylene | MR | 13 | 2023 |
| 1,1-Dichloroethylene | MR | 13 | 2023 |
| Trichloroethylene | MR | 13 | 2023 |
| o-Dichlorobenzene | MR | 13 | 2023 |
| CHLOROBENZENE | MR | 13 | 2023 |
| Fluoride | MR | 13 | 1991 |
Violation Count vs. the National Corpus
Shungnak Water System has 1,360 recorded EPA violations, 100% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 0% carry more. 4% of this system's own violations are health-based (56 of 1,360), and it ranks unranked by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
1,360 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 Shungnak Water System
EPA SDWIS lists 299 people served and 68 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
1,360 violations · 299 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.
What to do with Shungnak 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.