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Attala Steel Industries LLC

Miscellaneous Metal Work, Kosciusko, Mississippi. NPDES permit MSP092480, in force until Aug 31, 2030. Last 12 months: over a limit 6 times (last July 2026), 32 required values missing, 7 of 13 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (13 values), form S twice a year
Last report on file
August 2026

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
June 2026Iron, total recoverable, semi-annual average3.5 mg/L≤ 3 mg/L17%
June 2026Nickel, total recoverable, semi-annual average.43 mg/L≤ .3 mg/L43%
June 2026Oil and grease, daily maximum58.1 mg/L≤ 30 mg/L94%
June 2026Oil and grease, monthly average24.5 mg/L≤ 15 mg/L63%
July 2026Oil and grease, daily maximum48.9 mg/L≤ 30 mg/L63%
July 2026Oil and grease, monthly average30.4 mg/L≤ 15 mg/L103%

Limits in force (27)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximum≤ 100 deg Fall year
BOD, 5-day, 20 deg. Cmonthly average≤ 200 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 300 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Nitrite + Nitrate total [as N]monthly average≤ 200 mg/Lall year
Nitrite + Nitrate total [as N]daily maximum≤ 300 mg/Lall year
Iron, total recoverablesemi-annual average≤ 3 mg/Lall year
Iron, total recoverablesemi-annual maximum≤ 5 mg/Lall year
Nickel, total recoverablesemi-annual average≤ .3 mg/Lall year
Nickel, total recoverablesemi-annual maximum≤ .6 mg/Lall year
Zinc, total recoverablesemi-annual average≤ .5 mg/Lall year
Zinc, total recoverablesemi-annual maximum≤ 1 mg/Lall year
Aluminum, total recoverablesemi-annual average≤ .75 mg/Lall year
Aluminum, total recoverablesemi-annual maximum≤ 1 mg/Lall year
Lead, total recoverablesemi-annual average≤ .05 mg/Lall year
Lead, total recoverablesemi-annual maximum≤ .1 mg/Lall year
Chromium, total recoverablesemi-annual average≤ .1 mg/Lall year
Chromium, total recoverablesemi-annual maximum≤ .5 mg/Lall year
Copper, total recoverablesemi-annual average≤ .3 mg/Lall year
Copper, total recoverablesemi-annual maximum≤ .6 mg/Lall year
Oil and greasemonthly average≤ 15 mg/Lall year
Oil and greasedaily maximum≤ 30 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximum≤ .02 MGDall year
Chemical Oxygen Demand [COD]monthly average≤ 400 mg/Lall year
Chemical Oxygen Demand [COD]daily maximum≤ 600 mg/Lall year

How strict are these limits?

Cited limits by parameter: Mississippi's rules and the federal ones.

Same industry: the 7 Fabricated Metal Products permits in Mississippi.

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Your permit document is the final word. As JSON: /api/v1/permits/MSP092480 · MCP: https://passage-data.com/mcp