Mbo, LLC - Lacassine Exploration & Production Waste Treatment Facility — NPDES permit LA0124460: limits, due date and EPA's record

Oil And Gas Field Services, Iowa, Louisiana. NPDES permit LA0124460, in force until Oct 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (54)

Parameter	Statistic	Limit	Months
pH	instantaneous minimum	≥ 6 SU	all year
pH	instantaneous minimum	≥ 6 SU	all year
pH	instantaneous maximum	≤ 9 SU	all year
pH	instantaneous maximum	≤ 9 SU	all year
Solids, total suspended	daily maximum	≤ 60 mg/L	all year
Solids, total suspended	daily maximum	≤ 60 mg/L	all year
Oil & Grease	daily maximum	≤ 15 mg/L	all year
Oil & Grease	daily maximum	≤ 15 mg/L	all year
Chloride [as Cl]	daily maximum	≤ 500 mg/L	all year
Chloride [as Cl]	daily maximum	≤ 500 mg/L	all year
Sulfate, total [as SO4]	daily maximum	report only (mg/L)	all year
Sulfate, total [as SO4]	daily maximum	report only (mg/L)	all year
Arsenic, total [as As]	daily maximum	≤ .137 mg/L	all year
Arsenic, total [as As]	daily maximum	≤ .137 mg/L	all year
Barium, total [as Ba]	daily maximum	≤ 2 mg/L	all year
Barium, total [as Ba]	daily maximum	≤ 2 mg/L	all year
Beryllium, total [as Be]	daily maximum	≤ .275 mg/L	all year
Beryllium, total [as Be]	daily maximum	≤ .275 mg/L	all year
Cadmium, total [as Cd]	daily maximum	≤ .2439 mg/L	all year
Cadmium, total [as Cd]	daily maximum	≤ .2439 mg/L	all year
Chromium, hexavalent [as Cr]	daily maximum	≤ .0796 mg/L	all year
Chromium, hexavalent [as Cr]	daily maximum	≤ .0796 mg/L	all year
Chromium, total [as Cr]	daily maximum	≤ .343 mg/L	all year
Chromium, total [as Cr]	daily maximum	≤ .343 mg/L	all year
Copper, total [as Cu]	daily maximum	≤ .5712 mg/L	all year
Copper, total [as Cu]	daily maximum	≤ .5712 mg/L	all year
Lead, total [as Pb]	daily maximum	≤ .275 mg/L	all year
Lead, total [as Pb]	daily maximum	≤ .275 mg/L	all year
Thallium, total [as Tl]	daily maximum	≤ .549 mg/L	all year
Thallium, total [as Tl]	daily maximum	≤ .549 mg/L	all year
Nickel, total [as Ni]	daily maximum	≤ .549 mg/L	all year
Nickel, total [as Ni]	daily maximum	≤ .549 mg/L	all year
Silver, total [as Ag]	daily maximum	≤ .11 mg/L	all year
Silver, total [as Ag]	daily maximum	≤ .11 mg/L	all year
Zinc, total [as Zn]	daily maximum	≤ .686 mg/L	all year
Zinc, total [as Zn]	daily maximum	≤ .686 mg/L	all year
Antimony, total [as Sb]	daily maximum	≤ .549 mg/L	all year
Antimony, total [as Sb]	daily maximum	≤ .549 mg/L	all year
Selenium, total [as Se]	daily maximum	≤ .11 mg/L	all year
Selenium, total [as Se]	daily maximum	≤ .11 mg/L	all year
Toluene	daily maximum	≤ .08 mg/L	all year
Toluene	daily maximum	≤ .08 mg/L	all year
Benzene	daily maximum	≤ .05236 mg/L	all year
Benzene	daily maximum	≤ .05236 mg/L	all year
Ethylbenzene	daily maximum	≤ .108 mg/L	all year
Ethylbenzene	daily maximum	≤ .108 mg/L	all year
Phenol	daily maximum	≤ .026 mg/L	all year
Phenol	daily maximum	≤ .026 mg/L	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	weekly average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	weekly average	report only (MGD)	all year
Mercury, total [as Hg]	daily maximum	≤ .00084 mg/L	all year
Mercury, total [as Hg]	daily maximum	≤ .00084 mg/L	all year

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/LA0124460 · MCP: https://passage-data.com/mcp