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Clean Water Act discharge permit · NPDES LA0124460

MBO, LLC -LACASSINE OILFIELD SERVICES, Iowa, LA: NPDES LA0124460 discharge permit, effluent exceedances, inspections, penalties

MBO, LLC -LACASSINE OILFIELD SERVICES, held by MBO, LLC - LACASSINE EXPLORATION & PRODUCTION WASTE TREATMENT FACILITY, holds NPDES permit LA0124460. EPA’s file records it issued June 21, 2017 and expiring July 31, 2022. 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 filedMBO, LLC -LACASSINE OILFIELD SERVICES
Permittee as filedMBO, LLC - LACASSINE EXPLORATION & PRODUCTION WASTE TREATMENT FACILITY
NPDES IDLA0124460
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJune 21, 2017
Expiration dateJuly 31, 2022
AddressIowa, LA 70647
Receiving water impaired303(D) Listed
SubwatershedWest Bayou Lacassine (HUC 080802020204)
SIC1389 – Oil And Gas Field Services
Other EPA IDs (FRS)ICIS-AIR source LA0000002205300565

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
Phenol2142July 31, 201792% over the limit
pH4240
Flow, in conduit or thru treatment plant4240
Solids, total suspended2120
Chloride [as Cl]2120
Sulfate, total [as SO4]2120
Arsenic, total [as As]2120
Barium, total [as Ba]2120
Beryllium, total [as Be]2120
Cadmium, total [as Cd]2120
Chromium, total [as Cr]2120
Copper, total [as Cu]2120
Lead, total [as Pb]2120
Thallium, total [as Tl]2120
Nickel, total [as Ni]2120
Silver, total [as Ag]2120
Zinc, total [as Zn]2120
Antimony, total [as Sb]2120
Selenium, total [as Se]2120
Benzene2120
Ethylbenzene2120
Mercury, total [as Hg]2120
Oxygen demand, chem. [high level] [COD]0120
Oil and grease, hexane extr method0120
Solids, total dissolved, total tons0120
Monochlorobenzenes0120
Oil & Grease200
Chromium, hexavalent [as Cr]200
Toluene200
Solids, total dissolved [TDS]200
Chemical Oxygen Demand [COD]200

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 LA0124460.

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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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 LA0124460, held by MBO, LLC - LACASSINE EXPLORATION & PRODUCTION WASTE TREATMENT FACILITY and listed under MBO, LLC -LACASSINE OILFIELD SERVICES in Iowa, LA. The permit is administratively continued, and the record lists 27 as the discharger class, 1 pollutant under a numeric limit, and 1 pollutant with an effluent exceedance. The subwatershed code is HUC 080802020204, and the SIC code is 1389.