Community Water System · PWS IL1631300
Smithton
Operator location Smithton, Illinois - larger served population (> 3,309) at 4,006 people served; 65 SDWIS violations on record from surface water sources.
- 4,006
- People served (this PWS)
- 65
- EPA violations (this PWS)
- 10
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Smithton standing, mid SDWIS violation third
4,006 people served (SDWIS) - larger served population (> 3,309). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 15% is middle-third health share (≤ 23%). Population rank #8,840 of 29,740 among systems serving 500+.
The verdict
Smithton lands in the middle third by violation volume (65), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (4,006; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 15% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #8,840 of 29,740
- Population · /systems
- #409 of 1,310
- Population · IL
- 65
- Total EPA violations on record
- 15%
- 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
- 1,450
- County
- St. Clair
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 44
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 4 | 1999 |
| Atrazine | MCL | 4 | 1995 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2004 |
| Long Term 2 Enhanced Surface Water Treatment Rule | TT | 4 | 2014 |
| Consumer Confidence Rule | Other | 4 | 2023 |
| Cadmium | MR | 4 | 1987 |
| Fluoride | MR | 4 | 1987 |
| Combined Radium (-226 and -228) | MR | 4 | 2004 |
| Arsenic | MR | 4 | 1987 |
| Nitrate | MR | 4 | 1987 |
| Selenium | MR | 4 | 1987 |
| Chromium | MR | 4 | 1987 |
| Barium | MR | 4 | 1987 |
| Mercury | MR | 4 | 1987 |
| Coliform (TCR) | MCL | 2 | 1993 |
Violation Count vs. the National Corpus
Smithton has 65 recorded EPA violations, 63% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 36% carry more. 15% of this system's own violations are health-based (10 of 65), and it ranks #8,840 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)
65 Around the middle fewer violations than 36% 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 Smithton
EPA SDWIS lists 4,006 people served and 1,450 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · Illinois EPA, Bureau of Water
Nationwide peers
65 violations · 4,006 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 similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Smithton
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.