Clean Water Act discharge permit · NPDES AL0000221

MARSHALL SPACE FLIGHT CENTER, Huntsville, AL: NPDES AL0000221 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
5Pollutants with an effluent exceedance

MARSHALL SPACE FLIGHT CENTER, held by NASA Marshall Flight Space Center, holds NPDES permit AL0000221. EPA’s file records it issued March 24, 2014 and expiring March 31, 2019. 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	MARSHALL SPACE FLIGHT CENTER
Permittee as filed	NASA Marshall Flight Space Center
NPDES ID	AL0000221
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Federal facility
Issued	March 24, 2014
Expiration date	March 31, 2019
Address	Huntsville, AL 35812
Receiving water impaired	303(D) Listed
Subwatershed	Lower Huntsville Spring Branch (HUC 060300020503)
Other EPA IDs (FRS)	RCRA handler AL1800013863; ICIS-AIR source AL0000000108900014

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

13Pollutants on file
8Under a numeric limit
12With a violation of any kind
5With 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
Chlorine, total residual	2	175	12	March 31, 2011	72,627% over the limit
pH	36	204	10	November 30, 2021
Oil and grease	0	77	2	February 28, 2003	123% over the limit
Trichloroethylene	3	61	1	March 31, 2025	180% over the limit
Oil & Grease	18	4	1	December 31, 2023	8% over the limit
Flow, in conduit or thru treatment plant	23	180	0
Solids, total suspended	11	77	0
Temperature, water deg. fahrenheit	0	15	0
Chemical Oxygen Demand [COD]	8	5	0
Toxicity [chronic], Ceriodaphnia dubia	0	3	0
Toxicity [chronic], Pimephales promelas [Fathead Minnow]	0	3	0
Chloroform	0	1	0
Phosphorus, total [as P]	1	0	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 AL0000221.

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, AL0000221.

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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 AL0000221 there.

Nearby on the register

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

This public-records page covers the Clean Water Act NPDES discharge permit AL0000221, held by NASA Marshall Flight Space Center for the Marshall Space Flight Center in Huntsville, AL, and records the permit as administratively continued and classed as a minor discharger. The page lists 8 pollutants under a numeric limit and 5 pollutants with an effluent exceedance, with the permit's issue and expiration dates as they stood in EPA's file.