Non-Transient Non-Community Water System · PWS OR4193755
North Marion SD #15
Operator location Aurora, Oregon - upper-third violation load (> 74 violations) with 93 EPA violations; groundwater source; 2,100 served (PWS-level, not municipal population).
- 2,100
- People served (this PWS)
- 93
- EPA violations (this PWS)
- 19
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
North Marion SD #15 standing, high SDWIS violation third
93 EPA SDWIS violations on record - upper-third violation load (> 74 violations). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 20% is middle-third health share (≤ 23%). Population rank #13,199 of 29,740 among systems serving 500+.
The verdict
North Marion SD #15 sits in the upper third of the sitemap cohort by violation count (93), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 2,100 (mid served population (≤ 3,309)). Health-based share is 20% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #13,199 of 29,740
- Population · /systems
- #166 of 373
- Population · OR
- 93
- Total EPA violations on record
- 20%
- 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
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 4
- County
- Marion
- School/Daycare
- Yes
- MCL Violations
- 19
- Monitoring Violations
- 71
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 25 | 2015 |
| Arsenic | MCL | 19 | 2009 |
| Arsenic | MR | 15 | 2018 |
| TTHM | MR | 8 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2024 |
| Nitrate | MR | 7 | 2018 |
| COLIPHAGE | MR | 4 | 2018 |
| E. COLI | MR | 1 | 2013 |
| Endothall | MR | 1 | 2011 |
| Lead and Copper Rule | MR | 1 | 2005 |
| Revised Total Coliform Rule | MON | 1 | 2017 |
| Public Notice | Other | 1 | 2013 |
Violation Count vs. the National Corpus
North Marion SD #15 has 93 recorded EPA violations, 72% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 28% carry more. 20% of this system's own violations are health-based (19 of 93), and it ranks #13,199 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)
93 Around the middle fewer violations than 28% 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
SDWIS compliance record for North Marion SD #15
93 violations on record for OR4193755; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS
Nationwide peers
93 violations · 2,100 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 near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with North Marion SD #15
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Oregon compares on the same EPA violation measures. Oregon 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.