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Clean Water Act discharge permit · NPDES MO0004782

BOEING COMPANY, THE, St. Louis, MO: NPDES MO0004782 discharge permit, effluent exceedances, inspections, penalties

BOEING COMPANY, THE, held by The Boeing Company, holds NPDES permit MO0004782. EPA’s file records it issued December 1, 2021 and expiring March 31, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedBOEING COMPANY, THE
Permittee as filedThe Boeing Company
NPDES IDMO0004782
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 1, 2021
Expiration dateMarch 31, 2026
AddressSt. Louis, MO 63134
SubwatershedHeadwaters Coldwater Creek (HUC 103002000802)

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

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
Oil and grease [soxhlet extr.] tot.72816September 30, 2015120% over the limit
Oxygen demand, chem. [high level] [COD]92612March 31, 2013143% over the limit
Chlorine, total residual266March 31, 202426,456% over the limit
pH16224June 30, 2023
Solids, total suspended1022March 31, 2022500% over the limit
Solids, settleable922June 30, 2018500% over the limit
Chromium, total [as Cr]022March 31, 2007278% over the limit
Copper, total recoverable9140
LC50 Static 48Hr Acute Pimephales promelas040
Pass/Fail Static 48Hr Acute Ceriodaphnia dubia030
Sulfate [as S]900
Nitrogen, Kjeldahl, total [as N]900
Nitrite + Nitrate total [as N]900
Phosphorus, total [as P]900
Iron, total recoverable900
Aluminum, total recoverable900
Chloride900
Chlorides + Sulfates900
Storm water flow700
Temperature, water deg. fahrenheit200
Lead, total recoverable200
Flow, in conduit or thru treatment plant200

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 MO0004782.

Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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 MO0004782 there.

Nearby on the register

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