Community Water System · PWS 070000010
Winnebago Tribe- Thunder Way Housing
Operator location Winnebago, EPA Region 7 — Tribal Water Systems - smaller served population (≤ 999) at 160 people served; 76 SDWIS violations on record from groundwater sources.
- 160
- People served (this PWS)
- 76
- EPA violations (this PWS)
- 15
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Winnebago Tribe- Thunder Way Housing standing, high SDWIS violation third
160 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 20% is middle-third health share (≤ 23%).
The verdict
Winnebago Tribe- Thunder Way Housing sits in the upper third of the sitemap cohort by violation count (76), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (160; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 20% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 76
- Total EPA violations on record
- 20%
- Health-based (MCL / treatment failure)
- 160
- 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
- Federal
- Connections
- 57
- School/Daycare
- No
- MCL Violations
- 15
- Monitoring Violations
- 27
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 15 | 2010 |
| Coliform (TCR) | MCL | 7 | 1991 |
| Lead and Copper Rule | MR | 6 | 2011 |
| Gross Alpha, Excl. Radon and U | MCL | 4 | 1988 |
| Combined Radium (-226 and -228) | MCL | 4 | 1988 |
| Public Notice | Other | 4 | 2021 |
| TTHM | MR | 3 | 2020 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2020 |
Violation Count vs. the National Corpus
Winnebago Tribe- Thunder Way Housing has 76 recorded EPA violations, 67% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 33% carry more. 20% of this system's own violations are health-based (15 of 76), 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)
76 Around the middle fewer violations than 33% 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 Winnebago Tribe- Thunder Way Housing
EPA SDWIS lists 160 people served and 57 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
76 violations · 160 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 Winnebago Tribe- Thunder Way Housing
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in EPA Region 7 — Tribal Water Systems compares on the same EPA violation measures. EPA Region 7 — Tribal Water Systems 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.