Transient Non-Community Water System · PWS IL3137638
IL Hwy 39 Willowcreek Sb Rest
Operator location Rock Falls, Illinois - lower-third violation load (≤ 21 violations) with 0 EPA violations; groundwater source; 1,000 served (PWS-level, not municipal population).
- 1,000
- People served (this PWS)
- 0
- EPA violations (this PWS)
- 0
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
IL Hwy 39 Willowcreek Sb Rest standing, low SDWIS violation third
0 EPA SDWIS violations on record - lower-third violation load (≤ 21 violations). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Population rank #19,562 of 29,740 among systems serving 500+.
The verdict
IL Hwy 39 Willowcreek Sb Rest is in the lower third by violation count (0; 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 mid-pack at 1,000 (mid served population (≤ 3,309)). No violations are on record in this extract. No UCMR5 PFAS test appears for this system in this extract.
- #19,562 of 29,740
- Population · /systems
- #880 of 1,310
- Population · IL
- 0
- 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
- Transient Non-Community
- Owner Type
- State
- Connections
- 1
- County
- Lee
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 0
- Treatment Tech Violations
- 0
Violation Count vs. the National Corpus
IL Hwy 39 Willowcreek Sb Rest has 0 recorded EPA violations, 0% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 96% carry more. 0% of this system's own violations are health-based (0 of 0), and it ranks #19,562 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)
0 Among the lowest violation counts fewer violations than 96% 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
SDWIS compliance record for IL Hwy 39 Willowcreek Sb Rest
0 violations on record for IL3137638; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS · Illinois EPA, Bureau of Water
Nationwide peers
0 violations · 1,000 served: nearest cross-state SDWIS matches.
Cross-state systems near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with IL Hwy 39 Willowcreek Sb Rest
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Illinois compares on the same EPA violation measures. Illinois 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.