Community Water System · PWS MO4010468
Lilbourn PWS
Operator location Lilbourn, Missouri - smaller served population (≤ 999) at 902 people served; 202 SDWIS violations on record from groundwater sources.
- 902
- People served (this PWS)
- 202
- EPA violations (this PWS)
- 31
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Lilbourn PWS standing, high SDWIS violation third
902 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 15% is middle-third health share (≤ 23%). Population rank #20,933 of 29,740 among systems serving 500+.
The verdict
Lilbourn PWS sits in the upper third of the sitemap cohort by violation count (202), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (902; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 15% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #20,933 of 29,740
- Population · /systems
- #516 of 738
- Population · MO
- 202
- 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
- 511
- County
- New Madrid
- School/Daycare
- No
- MCL Violations
- 12
- Monitoring Violations
- 143
- Treatment Tech Violations
- 19
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 28 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 18 | 2024 |
| TTHM | MR | 18 | 2024 |
| Coliform (TCR) | MR | 15 | 2015 |
| Coliform (TCR) | MCL | 12 | 2005 |
| Consumer Confidence Rule | Other | 11 | 2023 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 10 | 2023 |
| Groundwater Rule | TT | 9 | 2023 |
| Arsenic | MR | 6 | 2024 |
| Cadmium | MR | 6 | 2024 |
| Antimony, Total | MR | 6 | 2024 |
| Beryllium, Total | MR | 6 | 2024 |
| Thallium, Total | MR | 6 | 2024 |
| Selenium | MR | 6 | 2024 |
| Barium | MR | 6 | 2024 |
| Fluoride | MR | 6 | 2024 |
| Mercury | MR | 6 | 2024 |
| Chromium | MR | 6 | 2024 |
| Groundwater Rule | Other | 4 | 2025 |
| Public Notice | Other | 2 | 2020 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | 2 | 2008 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1994 |
| Lead and Copper Rule | MR | 1 | 2011 |
Violation Count vs. the National Corpus
Lilbourn PWS has 202 recorded EPA violations, 85% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 14% carry more. 15% of this system's own violations are health-based (31 of 202), and it ranks #20,933 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)
202 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
Population served record for Lilbourn PWS
EPA SDWIS lists 902 people served and 511 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · Missouri DNR, Public Drinking Water Branch
Nationwide peers
202 violations · 902 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 with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Lilbourn PWS
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Missouri compares on the same EPA violation measures. Missouri 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.