Community Water System · PWS NC0496055
Seymour Johnson Afb
Operator location Seymour Johnson, North Carolina - 47% of 34 violations are health-based (upper-third health share (> 23%)); surface water source; 6,875 served per SDWIS.
- 6,875
- People served (this PWS)
- 34
- EPA violations (this PWS)
- 16
- Health-based (this PWS)
- 6 PFAS
- UCMR5 (this PWS)
Seymour Johnson Afb standing, mid SDWIS violation third
47% of 34 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 47% is upper-third health share (> 23%). UCMR5: upper-third PFAS panel (> 4 compounds). Population rank #6,210 of 29,740 among systems serving 500+.
The verdict
Seymour Johnson Afb lands in the middle third by violation volume (34), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (6,875; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 47% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 detected 6 PFAS compounds (upper-third PFAS panel (> 4 compounds)).
- #6,210 of 29,740
- Population · /systems
- #187 of 713
- Population · NC
- 34
- Total EPA violations on record
- 47%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
6 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Federal
- Connections
- 2,750
- County
- Wayne
- School/Daycare
- No
- MCL Violations
- 16
- Monitoring Violations
- 6
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 16 | 2013 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 1987 |
| Consumer Confidence Rule | Other | 4 | 2014 |
| Lead and Copper Rule | MR | 2 | 1992 |
Violation Count vs. the National Corpus
Seymour Johnson Afb has 34 recorded EPA violations, 46% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 54% carry more. 47% of this system's own violations are health-based (16 of 34), and it ranks #6,210 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)
34 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
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 17 of 116 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTrDA | 9/12/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| NMeFOSAA | 9/12/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 9/12/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTA | 9/12/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| 9Cl-PF3ONS | 6/14/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFPeA | 6/14/2023 | 6.20 ppt | 3.00 ppt | Detected |
| PFHpS | 6/14/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 6/14/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 6/14/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFMBA | 6/14/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 6/14/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 6/14/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 6/14/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 6/14/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 6/14/2023 | 5.50 ppt | 5.00 ppt | Detected |
| PFUnA | 6/14/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 6/14/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 6/14/2023 | 4.40 ppt | 3.00 ppt | Detected |
| 11Cl-PF3OUdS | 6/14/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHxA | 6/14/2023 | 6.20 ppt | 3.00 ppt | Detected |
| PFDoA | 6/14/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 6/14/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 6/14/2023 | 6.80 ppt | 4.00 ppt | Detected |
| PFOS | 6/14/2023 | 7.20 ppt | 4.00 ppt | Detected |
| PFNA | 6/14/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 6/14/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 6/14/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 6/14/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| NEtFOSAA | 6/14/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 6/14/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 6/14/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| NMeFOSAA | 6/14/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFEESA | 6/14/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 4/23/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 4/23/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 4/23/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 4/23/2024 | 3.60 ppt | 3.00 ppt | Detected |
| PFMBA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 4/23/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFHpS | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 4/23/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFPeS | 4/23/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 4/23/2024 | 7.30 ppt | 4.00 ppt | Detected |
| PFHpA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 4/23/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFNA | 4/23/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFBS | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 4/23/2024 | 4.30 ppt | 4.00 ppt | Detected |
Health-based violations on Seymour Johnson Afb
16 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for NC0496055.
Sources: EPA SDWIS · North Carolina DEQ, Public Water Supply Section
Nationwide peers
34 violations · 6,875 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 similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Seymour Johnson Afb
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.