Clean Water Act discharge permit · NPDES MS0021610
NASA JOHN C STENNIS SPACE CENTER, John C Stennis Space Center, MS: NPDES MS0021610 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
NASA JOHN C STENNIS SPACE CENTER holds NPDES permit MS0021610, which discharges to East Pearl River. EPA’s file records it issued March 19, 2018 and expiring February 28, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | NASA JOHN C STENNIS SPACE CENTER |
|---|---|
| Permittee as filed | NASA JOHN C STENNIS SPACE CENTER |
| NPDES ID | MS0021610 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Federal facility |
| Issued | March 19, 2018 |
| Expiration date | February 28, 2023 |
| Issuing agency | MDEQ |
| Address | John C Stennis Space Center, MS 39529 |
| Receiving water | EAST PEARL RIVER |
| Subwatershed | Mikes River (HUC 031800041003) |
| NAICS | 927110 – Space Research and Technology |
| SIC | 9661 – Space Research And Technology |
| Other EPA IDs (FRS) | RCRA handler MS2800090001; ICIS-AIR source MS0000002804500005 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 11Pollutants on file
- 6Under a numeric limit
- 11With a violation of any kind
- 9With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 10 | 30 | 30 | June 30, 2025 | 167% over the limit |
| Oxygen, dissolved [DO] | 0 | 17 | 17 | July 31, 2026 | 42% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 9 | 9 | March 31, 2025 | 77% over the limit |
| E. coli | 8 | 3 | 3 | December 31, 2024 | 751% over the limit |
| pH | 10 | 2 | 2 | May 31, 2014 | |
| Oil & Grease | 2 | 2 | 2 | May 31, 2026 | 250% over the limit |
| Coliform, fecal general | 0 | 2 | 2 | July 31, 2009 | 154% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 1 | 1 | December 31, 2008 | 14% over the limit |
| Cyanide, total [as CN] | 0 | 1 | 1 | January 31, 2010 | 2% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 24 | 0 | ||
| Flow, in conduit or thru treatment plant | 10 | 4 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MS0021610.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MS0021610.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MS0021610 there.
Nearby on the register
- Discharge permits in John C Stennis Space Center
- Every permit record in John C Stennis Space Center, A to Z
- Discharge permits in Mississippi
- Every permit record in Mississippi, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.