Community Water System · PWS WI6120244
Gays Mills Waterworks
Operator location Gays Mills, Wisconsin - smaller served population (≤ 999) at 490 people served; 46 SDWIS violations on record from groundwater sources.
- 490
- People served (this PWS)
- 46
- EPA violations (this PWS)
- 5
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Gays Mills Waterworks standing, mid SDWIS violation third
490 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 11% is middle-third health share (≤ 23%).
The verdict
Gays Mills Waterworks lands in the middle third by violation volume (46), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (490; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 11% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 46
- Total EPA violations on record
- 11%
- Health-based (MCL / treatment failure)
- 490
- 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
- Local
- Connections
- 259
- County
- Crawford
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 26
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 11 | 2024 |
| Coliform (TCR) | MR | 10 | 2007 |
| Consumer Confidence Rule | Other | 6 | 2024 |
| Chlorine | MR | 5 | 2007 |
| Groundwater Rule | TT | 5 | 2023 |
| Public Notice | Other | 2 | 2023 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2025 |
Violation Count vs. the National Corpus
Gays Mills Waterworks has 46 recorded EPA violations, 54% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 45% carry more. 11% of this system's own violations are health-based (5 of 46), 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)
46 Around the middle fewer violations than 45% 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 Gays Mills Waterworks
EPA SDWIS lists 490 people served and 259 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · Wisconsin DNR, Drinking Water and Groundwater
Nationwide peers
46 violations · 490 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Gays Mills Waterworks
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Wisconsin compares on the same EPA violation measures. Wisconsin 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.