Community Water System · PWS PA5320034
Icmsa Rossiter
Operator location Indiana, Pennsylvania - 27% of 537 violations are health-based (upper-third health share (> 23%)); surface water source; 500 served per SDWIS.
- 500
- People served (this PWS)
- 537
- EPA violations (this PWS)
- 143
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Icmsa Rossiter standing, high SDWIS violation third
27% of 537 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 27% is upper-third health share (> 23%). Population rank #29,557 of 29,740 among systems serving 500+.
The verdict
Icmsa Rossiter sits in the upper third of the sitemap cohort by violation count (537), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (500; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 27% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #29,557 of 29,740
- Population · /systems
- #1,301 of 1,340
- Population · PA
- 537
- Total EPA violations on record
- 27%
- 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
- 204
- County
- Indiana
- School/Daycare
- No
- MCL Violations
- 126
- Monitoring Violations
- 312
- Treatment Tech Violations
- 17
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MCL | 107 | 2025 |
| Public Notice | Other | 49 | 2024 |
| Surface Water Treatment Rule | MR | 38 | 2009 |
| Nitrate | MR | 22 | 2007 |
| TTHM | MCL | 19 | 2024 |
| CARBON, TOTAL | TT | 17 | 2009 |
| Total Haloacetic Acids (HAA5) | MR | 15 | 2024 |
| Fluoride | MR | 12 | 2013 |
| TTHM | MR | 11 | 2022 |
| CARBON, TOTAL | MR | 10 | 2025 |
| Arsenic | MR | 9 | 2021 |
| Chlorine | MR | 8 | 2016 |
| Mercury | MR | 8 | 1995 |
| Barium | MR | 8 | 1995 |
| Chromium | MR | 8 | 1995 |
| Cadmium | MR | 8 | 1995 |
| Selenium | MR | 8 | 1995 |
| cis-1,2-Dichloroethylene | MR | 6 | 1994 |
| o-Dichlorobenzene | MR | 6 | 1994 |
| Tetrachloroethylene | MR | 6 | 1994 |
| CHLOROBENZENE | MR | 6 | 1994 |
| Styrene | MR | 6 | 1994 |
| Toluene | MR | 6 | 1994 |
| Ethylbenzene | MR | 6 | 1994 |
| DICHLOROMETHANE | MR | 6 | 1994 |
| trans-1,2-Dichloroethylene | MR | 6 | 1994 |
| 1,2-Dichloropropane | MR | 6 | 1994 |
| 1,1,2-Trichloroethane | MR | 6 | 1994 |
| Consumer Confidence Rule | Other | 4 | 2005 |
| Endrin | MR | 4 | 1988 |
Violation Count vs. the National Corpus
Icmsa Rossiter has 537 recorded EPA violations, 96% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 4% carry more. 27% of this system's own violations are health-based (143 of 537), and it ranks #29,557 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)
537 Higher than most more violations than 96% 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 Icmsa Rossiter
143 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for PA5320034.
Sources: EPA SDWIS · Pennsylvania DEP, Bureau of Safe Drinking Water
Nationwide peers
537 violations · 500 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 Icmsa Rossiter
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Pennsylvania compares on the same EPA violation measures. Pennsylvania 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.