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Arcosa LW BR LLC - Arcosa Lightweight

Minerals, Ground Or Treated, Erwinville, Louisiana. NPDES permit LA0090387, in force until Jul 31, 2030. Last 12 months: no values over a limit, 7 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A quarterly (14 values), outfall 101 form Q quarterly (8 values), outfall 201 form Q quarterly (8 values), outfall 301 form S twice a year, outfall 401 form S twice a year
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (46)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendeddaily maximum≤ 135 mg/Lall year001
Solids, total suspendeddaily maximum≤ 135 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year001
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year101
Sulfate, total [as SO4]monthly average≤ .31 lb/dall year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Solids, total dissolvedmonthly average≤ 2.09 lb/dall year101
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year101
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year101
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year201
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year201
Sulfate, total [as SO4]monthly average≤ .19 lb/dall year201
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year201
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year201
Solids, total dissolvedmonthly average≤ 1.25 lb/dall year201
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year201
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year201
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year301
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year301
Sulfate, total [as SO4]monthly average≤ .06 lb/dall year301
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year301
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year301
Solids, total dissolvedmonthly average≤ .42 lb/dall year301
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year301
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year301
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year401
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year401
Sulfate, total [as SO4]monthly average≤ .04 lb/dall year401
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year401
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year401
Solids, total dissolvedmonthly average≤ .25 lb/dall year401
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year401
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year401

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

Same industry: the 7 Stone, Clay, Glass and Concrete Products permits in Louisiana.

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Your permit document is the final word. As JSON: /api/v1/permits/LA0090387 · MCP: https://passage-data.com/mcp