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Koppers Utility and Industrial Products Inc - Rosepine Facility

Sawmills And Planing Mills, General, Leesville, Louisiana. NPDES permit LA0127796, in force until Jul 31, 2030. Last 12 months: over a limit 3 times (last December 2025), 1 of 18 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (8 values), outfall 002 form Q quarterly (6 values), outfall 101 form A quarterly (12 values), outfall 001 form S twice a year
Last report on file
July 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 4 of 4 reports late

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

Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, daily maximum153 mg/L≤ 100 mg/L53%
October 2025Solids, total suspended, monthly average153 mg/L≤ 30 mg/L410%
December 2025Solids, total suspended, monthly average71.5 mg/L≤ 30 mg/L138%

Limits in force (30)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 8.5 SUall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year001
Copper, total [as Cu]monthly averagereport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)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
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 8.5 SUall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall 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
Temperature, water deg. fahrenheitinstantaneous maximum≤ 86 deg Fall year101
Temperature, water deg. fahrenheitinstantaneous maximum≤ 86 deg Fall year101
Solids, total suspendedmonthly average≤ 30 mg/Lall year101
Solids, total suspendedmonthly average≤ 30 mg/Lall year101
Solids, total suspendeddaily maximum≤ 100 mg/Lall year101
Solids, total suspendeddaily maximum≤ 100 mg/Lall year101
Oil & Greasedaily maximum≤ 15 mg/Lall year101
Oil & Greasedaily maximum≤ 15 mg/Lall year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all 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
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101

How strict are these limits?

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

Same industry: the 18 Lumber and Wood Products permits in Louisiana.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0127796 · MCP: https://passage-data.com/mcp