Community Water System · PWS NC0368152
Oak Grove MHP
Operator location Chapel Hill, North Carolina - smaller served population (≤ 999) at 64 people served; 332 SDWIS violations on record from groundwater sources.
- 64
- People served (this PWS)
- 332
- EPA violations (this PWS)
- 12
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Oak Grove MHP standing, high SDWIS violation third
64 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 4% is middle-third health share (≤ 23%).
The verdict
Oak Grove MHP sits in the upper third of the sitemap cohort by violation count (332), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (64; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 4% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 332
- Total EPA violations on record
- 4%
- Health-based (MCL / treatment failure)
- 64
- 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
- Private
- Connections
- 25
- County
- Orange
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 256
- Treatment Tech Violations
- 6
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Public Notice | Other | 48 | 2024 |
| Lead and Copper Rule | MR | 43 | 2024 |
| Gross Alpha, Excl. Radon and U | MR | 28 | 2008 |
| Combined Radium (-226 and -228) | MR | 28 | 2008 |
| Radium-226 | MR | 27 | 2008 |
| Combined Uranium | MR | 27 | 2008 |
| Radium-228 | MR | 27 | 2008 |
| Di(2-ethylhexyl) phthalate | MR | 22 | 2008 |
| Coliform (TCR) | MR | 15 | 2002 |
| Consumer Confidence Rule | Other | 14 | 2021 |
| Methoxychlor | MR | 9 | 2008 |
| Endrin | MR | 9 | 2008 |
| Revised Total Coliform Rule | MON | 8 | 2025 |
| Coliform (TCR) | MCL | 6 | 2009 |
| Lead and Copper Rule | TT | 6 | 2005 |
| Nitrate | MR | 5 | 2012 |
| Asbestos | MR | 4 | 2020 |
| E. COLI | MR | 3 | 2020 |
| Gross Beta Particle Activity | MR | 1 | 1980 |
Violation Count vs. the National Corpus
Oak Grove MHP has 332 recorded EPA violations, 92% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 8% carry more. 4% of this system's own violations are health-based (12 of 332), 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)
332 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 Oak Grove MHP
EPA SDWIS lists 64 people served and 25 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · North Carolina DEQ, Public Water Supply Section
Nationwide peers
332 violations · 64 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 Oak Grove MHP
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in North Carolina compares on the same EPA violation measures. North Carolina 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.