Clean Water Act discharge permit · NPDES MSP092448

LOCKHEED MARTIN SPACE OPERATIONS LLC, PROPULSION MANUFACTURING CENTER, John C Stennis Space Center, MS: NPDES MSP092448 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
11Pollutants under a numeric limit
0Pollutants with an effluent exceedance

LOCKHEED MARTIN SPACE OPERATIONS LLC, PROPULSION MANUFACTURING CENTER holds NPDES permit MSP092448. EPA’s file records it issued October 18, 2021 and expiring September 30, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	LOCKHEED MARTIN SPACE OPERATIONS LLC, PROPULSION MANUFACTURING CENTER
Permittee as filed	LOCKHEED MARTIN SPACE OPERATIONS LLC, PROPULSION MANUFACTURING CENTER
NPDES ID	MSP092448
Permit status	Effective
Permit type	Individual industrial user permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	October 18, 2021
Expiration date	September 30, 2026
Issuing agency	MDEQ
Address	John C Stennis Space Center, MS 39529

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

11Pollutants on file
11Under a numeric limit
10With a violation of any kind
0With 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
Cyanide, total [as CN]	4	8
Nickel, total recoverable	4	8
Silver total recoverable	4	8
Zinc, total recoverable	4	8
Cadmium, total recoverable	4	8
Lead, total recoverable	4	8
Chromium, total recoverable	4	8
Copper, total recoverable	4	8
pH	2	4
Flow, in conduit or thru treatment plant	2	4
Total toxic organics [TTO] [40 CFR433]	2	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MSP092448.

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 MSP092448.

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, MSP092448.

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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 MSP092448 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers Clean Water Act discharge permit NPDES MSP092448, held by LOCKHEED MARTIN SPACE OPERATIONS LLC, PROPULSION MANUFACTURING CENTER at John C Stennis Space Center, MS, with the permit listed as Effective and issued October 18, 2021, expiring September 30, 2026. The page lists 11 pollutants on file, 11 under a numeric limit, and 10 with a violation of any kind, with 0 pollutants having an effluent exceedance.