Community Water System · PWS IA2825099
Earlville Muni Water Supply
Operator location Earlville, Iowa - 57% of 147 violations are health-based (upper-third health share (> 23%)); groundwater source; 724 served per SDWIS.
- 724
- People served (this PWS)
- 147
- EPA violations (this PWS)
- 84
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Earlville Muni Water Supply standing, high SDWIS violation third
57% of 147 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 57% is upper-third health share (> 23%). Population rank #23,883 of 29,740 among systems serving 500+.
The verdict
Earlville Muni Water Supply sits in the upper third of the sitemap cohort by violation count (147), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (724; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 57% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #23,883 of 29,740
- Population · /systems
- #440 of 545
- Population · IA
- 147
- Total EPA violations on record
- 57%
- 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
- 375
- County
- Delaware
- School/Daycare
- No
- MCL Violations
- 84
- Monitoring Violations
- 39
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MCL | 84 | 2002 |
| Coliform (TCR) | MR | 18 | 2002 |
| Nitrate | MR | 10 | 2012 |
| Revised Total Coliform Rule | MON | 4 | 2016 |
| Arsenic | MR | 1 | 1988 |
| Barium | MR | 1 | 1988 |
| Chromium | MR | 1 | 1988 |
| Lead and Copper Rule | MR | 1 | 1990 |
| Mercury | MR | 1 | 1988 |
| Cadmium | MR | 1 | 1988 |
| Selenium | MR | 1 | 1988 |
Violation Count vs. the National Corpus
Earlville Muni Water Supply has 147 recorded EPA violations, 81% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 19% carry more. 57% of this system's own violations are health-based (84 of 147), and it ranks #23,883 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)
147 Higher than most more violations than 81% 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 Earlville Muni Water Supply
84 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for IA2825099.
Sources: EPA SDWIS
Nationwide peers
147 violations · 724 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 Earlville Muni Water Supply
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Iowa compares on the same EPA violation measures. Iowa 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.