Community Water System · PWS WI4380436
Coleman Waterworks
Operator location Coleman, Wisconsin - smaller served population (≤ 999) at 727 people served; 56 SDWIS violations on record from groundwater sources.
- 727
- People served (this PWS)
- 56
- EPA violations (this PWS)
- 10
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Coleman Waterworks standing, mid SDWIS violation third
727 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 18% is middle-third health share (≤ 23%). Population rank #23,830 of 29,740 among systems serving 500+.
The verdict
Coleman Waterworks lands in the middle third by violation volume (56), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (727; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 18% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #23,830 of 29,740
- Population · /systems
- #526 of 744
- Population · WI
- 56
- Total EPA violations on record
- 18%
- 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
- 269
- County
- Marinette
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 41
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 18 | 2012 |
| Combined Radium (-226 and -228) | MCL | 10 | 2015 |
| Chlorine | MR | 9 | 2012 |
| Combined Radium (-226 and -228) | MR | 4 | 2019 |
| Radium-228 | MR | 4 | 2019 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2019 |
| Public Notice | Other | 4 | 2019 |
| Lead and Copper Rule | MR | 2 | 2024 |
| Consumer Confidence Rule | Other | 1 | 2013 |
Violation Count vs. the National Corpus
Coleman Waterworks has 56 recorded EPA violations, 60% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 40% carry more. 18% of this system's own violations are health-based (10 of 56), and it ranks #23,830 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)
56 Around the middle fewer violations than 40% 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 Coleman Waterworks
EPA SDWIS lists 727 people served and 269 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
56 violations · 727 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.
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Coleman 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.