Community Water System · PWS MO4010626
Parma PWS
Operator location Parma, Missouri - smaller served population (≤ 999) at 450 people served; 184 SDWIS violations on record from groundwater sources.
- 450
- People served (this PWS)
- 184
- EPA violations (this PWS)
- 31
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Parma PWS standing, high SDWIS violation third
450 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 17% is middle-third health share (≤ 23%).
The verdict
Parma PWS sits in the upper third of the sitemap cohort by violation count (184), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (450; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 17% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 184
- Total EPA violations on record
- 17%
- Health-based (MCL / treatment failure)
- 450
- 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
- 252
- County
- New Madrid
- School/Daycare
- No
- MCL Violations
- 12
- Monitoring Violations
- 130
- Treatment Tech Violations
- 19
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Groundwater Rule | MR | 61 | 2025 |
| Revised Total Coliform Rule | MON | 19 | 2025 |
| Coliform (TCR) | MR | 18 | 2002 |
| Groundwater Rule | TT | 13 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 12 | 2024 |
| TTHM | MR | 12 | 2024 |
| Coliform (TCR) | MCL | 12 | 2004 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 6 | 2021 |
| Consumer Confidence Rule | Other | 4 | 2019 |
| Nitrate-Nitrite | MR | 4 | 2024 |
| Lead and Copper Rule | MR | 4 | 2016 |
| Public Notice | Other | 3 | 2020 |
| Groundwater Rule | Other | 2 | 2021 |
Violation Count vs. the National Corpus
Parma PWS has 184 recorded EPA violations, 84% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 16% carry more. 17% of this system's own violations are health-based (31 of 184), 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)
184 Higher than most more violations than 84% 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 Parma PWS
EPA SDWIS lists 450 people served and 252 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
184 violations · 450 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 Parma 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.