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WestRock CP LLC

Paper Mills, major discharger, Jacksonville, Florida. NPDES permit FL0000400, in force until Oct 28, 2029. Last 12 months: over a limit once (last December 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 90 days after each period: form 1 monthly (27 values), form Q quarterly (16 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
December 2025Copper, total recoverable, daily maximum< 5 ug/L≤ 3.7 ug/L35%

Limits in force (43)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademonthly average≤ 35 deg Call year
Temperature, water deg. centigradedaily maximum≤ 37.7 deg Call year
Temperature, water deg. centigrademaximumreport only (deg C)all year
Temperature, water deg. centigrademaximumreport only (deg C)all year
Tide stagemaximumreport only (m)all year
Tide stagemaximumreport only (m)all year
Specific conductancemaximumreport only (umho/cm)all year
Specific conductancemaximumreport only (umho/cm)all year
Oxygen, dissolved [DO]daily minimum≥ 1.5 mg/Lall year
Oxygen, dissolved [DO]monthly averagereport only (mg/L)all year
Oxygen, dissolved [DO]minimumreport only (mg/L)all year
Oxygen, dissolved [DO]minimumreport only (mg/L)all year
Oxygen, dissolved percent saturationminimumreport only (%)all year
Oxygen, dissolved percent saturationminimumreport only (%)all year
Oxygen, dissolved percent saturationminimum annual averagereport only (%)all year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 8.5 SUall year
pHmaximumreport only (SU)all year
pHmaximumreport only (SU)all year
Solids, total suspendeddaily maximum≤ 23055 lb/dall year
Solids, total suspendedmonthly average≤ 11527 lb/dall year
Oil & Greasedaily maximum≤ 5 mg/Lall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly totalreport only (lb/mo)all year
Nitrogen, total [as N]annual total≤ 163471 lb/yrall year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly totalreport only (lb/mo)all year
Phosphorus, total [as P]annual total≤ 31025 lb/yrall year
Copper, total recoverabledaily maximum≤ 3.7 ug/Lall year
Chlorophyll Amaximumreport only (mg/L)all year
Chlorophyll Amaximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 14284 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 7016 lb/dall year
IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)minimum≥ 23 %all year
IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)minimum≥ 23 %all year
IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)minimum≥ 23 %all year
IC25 Static Renewal 7 Day Chronic Menidia menidiaminimum≥ 23 %all year
IC25 Static Renewal 7 Day Chronic Menidia menidiaminimum≥ 23 %all year
IC25 Static Renewal 7 Day Chronic Menidia menidiaminimum≥ 23 %all year

How strict are these limits?

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

Same industry: the 7 Paper and Allied Products permits in Florida.

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/FL0000400 · MCP: https://passage-data.com/mcp