Community Water System · PWS IA6520019
Emerson Water Department
Operator location Emerson, Iowa - 64% of 111 violations are health-based (upper-third health share (> 23%)); groundwater source; 412 served per SDWIS.
- 412
- People served (this PWS)
- 111
- EPA violations (this PWS)
- 71
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Emerson Water Department standing, high SDWIS violation third
64% of 111 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 64% is upper-third health share (> 23%).
The verdict
Emerson Water Department sits in the upper third of the sitemap cohort by violation count (111), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (412; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 64% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 111
- Total EPA violations on record
- 64%
- Health-based (MCL / treatment failure)
- 412
- People served by this PWS (SDWIS)
- N/A
- PFAS compounds detected (UCMR5)
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
- 224
- County
- Mills
- School/Daycare
- No
- MCL Violations
- 71
- Monitoring Violations
- 5
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 40 | 1991 |
| Nitrate | MCL | 31 | 1991 |
| Nitrate | MR | 5 | 2014 |
Violation Count vs. the National Corpus
Emerson Water Department has 111 recorded EPA violations, 75% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 25% carry more. 64% of this system's own violations are health-based (71 of 111), and it ranks unranked by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
111 Around the middle fewer violations than 25% 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 Emerson Water Department
71 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for IA6520019.
Sources: EPA SDWIS
Nationwide peers
111 violations · 412 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.
What to do with Emerson Water Department
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.