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Gerdau Macsteel Inc

Small Arms Ammunition, major discharger, New Albany, Mississippi. NPDES permit MS0000931, in force until Jul 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (45 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (45)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Toluenemonthly averagereport only (mg/L)all year
Toluenedaily maximumreport only (mg/L)all year
Toluenemonthly averagereport only (lb/d)all year
Toluenedaily maximumreport only (lb/d)all year
Chlorobenzenemonthly averagereport only (mg/L)all year
Chlorobenzenedaily maximumreport only (mg/L)all year
Chlorobenzenemonthly averagereport only (lb/d)all year
Chlorobenzenedaily maximumreport only (lb/d)all year
1,1-Dichloroethylenemonthly averagereport only (mg/L)all year
1,1-Dichloroethylenedaily maximumreport only (mg/L)all year
1,1-Dichloroethylenemonthly averagereport only (lb/d)all year
1,1-Dichloroethylenedaily maximumreport only (lb/d)all year
trans-1,2-Dichloroethylenemonthly averagereport only (mg/L)all year
trans-1,2-Dichloroethylenedaily maximumreport only (mg/L)all year
trans-1,2-Dichloroethylenemonthly averagereport only (lb/d)all year
trans-1,2-Dichloroethylenedaily maximumreport only (lb/d)all year
Vinyl chloridemonthly averagereport only (mg/L)all year
Vinyl chloridedaily maximumreport only (mg/L)all year
Vinyl chloridemonthly averagereport only (lb/d)all year
Vinyl chloridedaily maximumreport only (lb/d)all year
Trichloroethylenemonthly averagereport only (mg/L)all year
Trichloroethylenedaily maximumreport only (mg/L)all year
Trichloroethylenemonthly averagereport only (lb/d)all year
Trichloroethylenedaily maximumreport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly average≤ .018 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Ammonia [as N] + unionized ammoniamonthly averagereport only (mg/L)all year
Ammonia [as N] + unionized ammoniadaily maximumreport only (mg/L)all year
Ammonia [as N] + unionized ammoniamonthly averagereport only (lb/d)all year
Ammonia [as N] + unionized ammoniadaily maximumreport only (lb/d)all year
Suspended solids, total annualmonthly averagereport only (mg/L)all year
Suspended solids, total annualdaily maximumreport only (mg/L)all year
Suspended solids, total annualmonthly averagereport only (lb/d)all year
Suspended solids, total annualdaily maximumreport only (lb/d)all year
Tetrachloroethylenemonthly average≤ .254 mg/Lall year
Tetrachloroethylenedaily maximum≤ .381 mg/Lall year
Tetrachloroethylenemonthly average≤ .04 lb/dall year
Tetrachloroethylenedaily maximum≤ .06 lb/dall 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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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MS0000931 · MCP: https://passage-data.com/mcp