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Clean Water Act discharge permit · NPDES MO0115690

NORTHROP GRUMMAN SYSTEMS CORPORATION, Springfield, MO: NPDES MO0115690 discharge permit, effluent exceedances, inspections, penalties

NORTHROP GRUMMAN SYSTEMS CORPORATION, held by Northrop Grumman Corporation, holds NPDES permit MO0115690, which discharges to Tributary To Clear Creek Via Sinkhole. EPA’s file records it issued October 23, 2018 and expiring October 31, 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.

What the register holds for NORTHROP GRUMMAN SYSTEMS CORPORATION: its NPDES ID, its permit type and status, its dates, its address in Springfield, Missouri, its receiving water, and 9 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MO0115690.

Identity

Facility as filedNORTHROP GRUMMAN SYSTEMS CORPORATION
Permittee as filedNorthrop Grumman Corporation
NPDES IDMO0115690
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedOctober 23, 2018
Expiration dateOctober 31, 2023
AddressSpringfield, MO 65803
Receiving waterTributary to Clear Creek via Sinkhole
SubwatershedHeadwaters Clear Creek (HUC 102901060204)
NAICS562910 – Remediation Services
SIC9999 – Nonclassifiable Establishments
Other EPA IDs (FRS)RCRA handler MOD007152903

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

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH400
Solids, total suspended200
Oil and grease [soxhlet extr.] tot.200
Iron, total recoverable200
Copper, total recoverable200
Manganese, total recoverable200
Trichloroethylene200
Rainfall200
Flow, in conduit or thru treatment plant200

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MO0115690.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MO0115690.

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.

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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 MO0115690 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers NPDES permit MO0115690, held by NORTHROP GRUMMAN SYSTEMS CORPORATION in Springfield, MO, under the Industrial stormwater program. The permit is listed as Effective, is an individual permit for a minor discharger, and shows 9 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.