Non-Transient Non-Community Water System · PWS WI2685657
Rolling Hills Elementary Schl
Operator location Mukwonago, Wisconsin - 0% of 8 violations are health-based (lower-third health share (≤ 1%)); groundwater source; 666 served per SDWIS.
- 666
- People served (this PWS)
- 8
- EPA violations (this PWS)
- 0
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Rolling Hills Elementary Schl standing, low SDWIS violation third
0% of 8 recorded violations are health-based - lower-third health share (≤ 1%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 0% is lower-third health share (≤ 1%). Population rank #24,930 of 29,740 among systems serving 500+.
The verdict
Rolling Hills Elementary Schl is in the lower third by violation count (8; lower-third violation load (≤ 21 violations)). A low count does not mean the system is unmonitored - monitoring and reporting violations still appear in SDWIS. Population served is smaller (666; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is only 0% - almost all of this trail is monitoring or reporting. No UCMR5 PFAS test appears for this system in this extract.
- #24,930 of 29,740
- Population · /systems
- #561 of 744
- Population · WI
- 8
- Total EPA violations on record
- 0%
- 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
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 1
- County
- Waukesha
- School/Daycare
- Yes
- MCL Violations
- 0
- Monitoring Violations
- 8
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 8 | 2012 |
Violation Count vs. the National Corpus
Rolling Hills Elementary Schl has 8 recorded EPA violations, 15% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 83% carry more. 0% of this system's own violations are health-based (0 of 8), and it ranks #24,930 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)
8 Among the lowest violation counts fewer violations than 83% 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
Health-based violations on Rolling Hills Elementary Schl
0 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for WI2685657.
Sources: EPA SDWIS · Wisconsin DNR, Drinking Water and Groundwater
Nationwide peers
8 violations · 666 served: nearest cross-state SDWIS matches.
Cross-state systems with similarly light violation ledgers
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
- Mohegan Tribal Utility Authority EPA Region 1 — Tribal Water Systems 8violations
- Hannahville Community EPA Region 5 — Tribal Water Systems 8violations
- Quapaw Downstream Casino & Resort EPA Region 6 — Tribal Water Systems 8violations
- San Ildefonso Totavi EPA Region 6 — Tribal Water Systems 8violations
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Rolling Hills Elementary Schl
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.