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Occidental Chemical Corporation

Alkalies And Chlorine, major discharger, New Johnsonville, Tennessee. NPDES permit TN0081361, in force until Dec 31, 2028. Last 12 months: over a limit 7 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G monthly (18 values), outfall 01A form G monthly (14 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
13 values over a limit, 0 required values missing, 0 of 24 reports late

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

Period endingParameterReportedLimit
October 2025pH, maximum9.3 SU≤ 9 SU
October 2025pH, minimum5.3 SU≥ 6 SU
November 2025pH, maximum9.6 SU≤ 9 SU
January 2026pH, maximum9.2 SU≤ 9 SU
March 2026pH, maximum9.2 SU≤ 9 SU
April 2026pH, maximum9.7 SU≤ 9 SU
August 2026pH, maximum9.3 SU≤ 9 SU

Limits in force (32)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Chloride [as Cl]daily maximumreport only (mg/L)all year001
Chloride [as Cl]daily maximumreport only (lb/d)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (lb/d)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
Solids, total dissolvedmonthly averagereport only (mg/L)all year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Solids, total dissolvedmonthly average≤ 157167 lb/dall year001
Solids, total dissolveddaily maximum≤ 157167 lb/dall year001
pH range excursions, > 60 minutesvalue≤ 0 occur/moall year001
pH range excursions, monthly total accumvalue< 446 minall year001
LC50 Static 48Hr Acute Ceriodaphnia dubiaminimum≥ 2 %all year001
LC50 Static 48Hr Acute Pimephales promelasminimum≥ 2 %all year001
Solids, total suspendedmonthly average≤ 419 lb/dall year01A
Solids, total suspendeddaily maximum≤ 629 lb/dall year01A
Chloride [as Cl]monthly average≤ 75475 lb/dall year01A
Chloride [as Cl]daily maximum≤ 79956 lb/dall year01A
Sulfate, total [as SO4]monthly average≤ 66040 lb/dall year01A
Sulfate, total [as SO4]daily maximum≤ 66040 lb/dall year01A
Nickel, total [as Ni]monthly average≤ 2.6 lb/dall year01A
Nickel, total [as Ni]daily maximum≤ 5.2 lb/dall year01A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year01A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01A
Chlorine, total residualmonthly average≤ .5 mg/Lall year01A
Chlorine, total residualdaily maximum≤ .5 mg/Lall year01A
Chlorine, total residualmonthly average≤ 1 lb/dall year01A
Chlorine, total residualdaily maximum≤ 1 lb/dall year01A

How strict are these limits?

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

Same industry: the 30 Chemicals and Allied Products permits in Tennessee.

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Your permit document is the final word. As JSON: /api/v1/permits/TN0081361 · MCP: https://passage-data.com/mcp