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Owens Corning Composite Materials LLC

Pressed And Blown Glass, Starr, South Carolina. NPDES permit SC0000400 expired Dec 31, 2018; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form 1 monthly (21 values), outfall 001 form 2 quarterly (2 values), outfall 001 form 3 monthly (2 values), outfall 002 form 1 monthly (10 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 40 reports late

Limits in force (37)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 12.5 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 24 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 15.1 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 25.4 lb/dall year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 8.5 SUall year001
Solids, total suspendedmonthly average≤ 15 mg/Lall year001
Solids, total suspendeddaily maximum≤ 24 mg/Lall year001
Solids, total suspendedmonthly average≤ 18.8 lb/dall year001
Solids, total suspendeddaily maximum≤ 25.4 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LMar–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 2.1 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 2.8 mg/LMar–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 4.2 mg/LJan, Feb, Nov, Dec001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]monthly averagereport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]monthly average≤ .068 lb/dall year001
Copper, total [as Cu]daily maximum≤ .095 lb/dall 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
E. colimonthly average≤ 126 #/100mLall year001
E. colidaily maximum≤ 349 #/100mLall year001
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average≤ 25 %all year001
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 40 %all year001
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 8.5 SUall year002
Solids, total suspendedmonthly average≤ 15 mg/Lall year002
Solids, total suspendeddaily maximum≤ 24 mg/Lall year002
Chloroformmonthly averagereport only (mg/L)all year002
Chloroformdaily maximumreport only (mg/L)all year002
1,1-Dichloroethylenemonthly averagereport only (mg/L)all year002
1,1-Dichloroethylenedaily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002

How strict are these limits?

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

Same industry: the 5 Stone, Clay, Glass and Concrete Products permits in South Carolina.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/SC0000400 · MCP: https://passage-data.com/mcp