Non-Transient Non-Community Water System · PWS OH3842212
Cornerstone Christian School
Operator location Holmesville, Ohio - smaller served population (≤ 999) at 165 people served; 319 SDWIS violations on record from groundwater sources.
- 165
- People served (this PWS)
- 319
- EPA violations (this PWS)
- 48
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Cornerstone Christian School standing, high SDWIS violation third
165 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 15% is middle-third health share (≤ 23%).
The verdict
Cornerstone Christian School sits in the upper third of the sitemap cohort by violation count (319), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (165; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 15% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 319
- Total EPA violations on record
- 15%
- Health-based (MCL / treatment failure)
- 165
- 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
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 2
- County
- Holmes
- School/Daycare
- Yes
- MCL Violations
- 40
- Monitoring Violations
- 264
- Treatment Tech Violations
- 8
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 40 | 2007 |
| Nitrate | MR | 34 | 2003 |
| Lead and Copper Rule | MR | 33 | 2014 |
| Coliform (TCR) | MR | 26 | 2012 |
| Simazine | MR | 11 | 1999 |
| Atrazine | MR | 11 | 1999 |
| LASSO | MR | 11 | 1999 |
| Cadmium | MR | 8 | 2003 |
| Beryllium, Total | MR | 8 | 2003 |
| Nickel | MR | 8 | 2003 |
| Thallium, Total | MR | 8 | 2003 |
| Arsenic | MR | 8 | 2003 |
| Fluoride | MR | 8 | 2003 |
| CYANIDE | MR | 8 | 2003 |
| Selenium | MR | 8 | 2003 |
| Barium | MR | 8 | 2003 |
| Antimony, Total | MR | 8 | 2003 |
| Chromium | MR | 8 | 2003 |
| Mercury | MR | 8 | 2003 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 4 | 2024 |
| Lead and Copper Rule | TT | 4 | 2013 |
| Total Polychlorinated Biphenyls (PCB) | MR | 3 | 2001 |
| Picloram | MR | 3 | 2001 |
| OXAMYL | MR | 3 | 2001 |
| Methoxychlor | MR | 3 | 2001 |
| BHC-GAMMA | MR | 3 | 2001 |
| Diquat | MR | 3 | 2001 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 2001 |
| Di(2-ethylhexyl) adipate | MR | 3 | 2001 |
Violation Count vs. the National Corpus
Cornerstone Christian School has 319 recorded EPA violations, 92% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 8% carry more. 15% of this system's own violations are health-based (48 of 319), 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)
319 Higher than most more violations than 92% 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 Cornerstone Christian School
EPA SDWIS lists 165 people served and 2 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · Ohio EPA, Division of Drinking and Ground Waters
Nationwide peers
319 violations · 165 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 Cornerstone Christian School
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.