Community Water System · PWS IL1130500
Downs
Operator location Downs, Illinois - upper-third violation load (> 74 violations) with 196 EPA violations; groundwater source; 1,201 served (PWS-level, not municipal population).
- 1,201
- People served (this PWS)
- 196
- EPA violations (this PWS)
- 18
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Downs standing, high SDWIS violation third
196 EPA SDWIS violations on record - upper-third violation load (> 74 violations). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 9% is middle-third health share (≤ 23%). Population rank #17,772 of 29,740 among systems serving 500+.
The verdict
Downs sits in the upper third of the sitemap cohort by violation count (196), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,201 (mid served population (≤ 3,309)). Health-based share is 9% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #17,772 of 29,740
- Population · /systems
- #786 of 1,310
- Population · IL
- 196
- Total EPA violations on record
- 9%
- 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
- 464
- County
- McLean
- School/Daycare
- No
- MCL Violations
- 9
- Monitoring Violations
- 120
- Treatment Tech Violations
- 9
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 51 | 2010 |
| Chlorine | MR | 38 | 2023 |
| Public Notice | Other | 24 | 2012 |
| Consumer Confidence Rule | Other | 17 | 2023 |
| Xylenes, Total | MR | 10 | 2008 |
| Coliform (TCR) | MCL | 9 | 1993 |
| Lead and Copper Rule | TT | 9 | 2009 |
| Lead and Copper Rule | MR | 8 | 2020 |
| Revised Total Coliform Rule | MON | 4 | 2020 |
| TTHM | MR | 4 | 2021 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2021 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1977 |
Violation Count vs. the National Corpus
Downs has 196 recorded EPA violations, 85% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 15% carry more. 9% of this system's own violations are health-based (18 of 196), and it ranks #17,772 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)
196 Higher than most more violations than 85% 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 Downs
196 violations on record for IL1130500; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS · Illinois EPA, Bureau of Water
Nationwide peers
196 violations · 1,201 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.
Cross-state systems near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Downs
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.