Transient Non-Community Water System · PWS OH4938612
Jehovah Witness Assembly Hall
Operator location London, Ohio - 61% of 33 violations are health-based (upper-third health share (> 23%)); groundwater source; 800 served per SDWIS.
- 800
- People served (this PWS)
- 33
- EPA violations (this PWS)
- 20
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Jehovah Witness Assembly Hall standing, mid SDWIS violation third
61% of 33 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 61% is upper-third health share (> 23%). Population rank #22,623 of 29,740 among systems serving 500+.
The verdict
Jehovah Witness Assembly Hall lands in the middle third by violation volume (33), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (800; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 61% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #22,623 of 29,740
- Population · /systems
- #726 of 931
- Population · OH
- 33
- Total EPA violations on record
- 61%
- 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
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Madison
- School/Daycare
- No
- MCL Violations
- 20
- Monitoring Violations
- 12
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 20 | 2001 |
| Coliform (TCR) | MR | 10 | 2004 |
| Nitrate | MR | 2 | 2024 |
| Public Notice | Other | 1 | 2025 |
Violation Count vs. the National Corpus
Jehovah Witness Assembly Hall has 33 recorded EPA violations, 45% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 54% carry more. 61% of this system's own violations are health-based (20 of 33), and it ranks #22,623 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)
33 Lower than most fewer violations than 54% 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 Jehovah Witness Assembly Hall
20 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for OH4938612.
Sources: EPA SDWIS · Ohio EPA, Division of Drinking and Ground Waters
Nationwide peers
33 violations · 800 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
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 Jehovah Witness Assembly Hall
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Ohio compares on the same EPA violation measures. Ohio 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.