Community Water System · PWS IA9753022
Moville Water Supply
Operator location Moville, Iowa - upper-third violation load (> 74 violations) with 76 EPA violations; groundwater source; 1,687 served (PWS-level, not municipal population).
- 1,687
- People served (this PWS)
- 76
- EPA violations (this PWS)
- 11
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Moville Water Supply standing, high SDWIS violation third
76 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 14% is middle-third health share (≤ 23%). Population rank #14,977 of 29,740 among systems serving 500+.
The verdict
Moville Water Supply sits in the upper third of the sitemap cohort by violation count (76), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,687 (mid served population (≤ 3,309)). Health-based share is 14% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #14,977 of 29,740
- Population · /systems
- #230 of 545
- Population · IA
- 76
- Total EPA violations on record
- 14%
- 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
- 767
- County
- Woodbury
- School/Daycare
- No
- MCL Violations
- 11
- Monitoring Violations
- 54
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 24 | 2014 |
| Nitrate | MR | 17 | 1996 |
| Nitrate | MCL | 8 | 2003 |
| Chlorine | MR | 4 | 2006 |
| Coliform (TCR) | MCL | 3 | 1998 |
| Arsenic | MR | 2 | 1986 |
| Cadmium | MR | 1 | 1986 |
| Chromium | MR | 1 | 1986 |
| Fluoride | MR | 1 | 1986 |
| Mercury | MR | 1 | 1986 |
| Selenium | MR | 1 | 1986 |
| Barium | MR | 1 | 1986 |
| Lead and Copper Rule | MR | 1 | 1988 |
Violation Count vs. the National Corpus
Moville Water Supply has 76 recorded EPA violations, 67% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 33% carry more. 14% of this system's own violations are health-based (11 of 76), and it ranks #14,977 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)
76 Around the middle fewer violations than 33% 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 Moville Water Supply
76 violations on record for IA9753022; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS
Nationwide peers
76 violations · 1,687 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 Moville 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.