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FMC Corp-Industrial Chemicals Group

Industrial Inorganic Chemicals, major discharger, Tonawanda, New York. NPDES permit NY0000337 expired Sep 30, 2018; its limits still apply. Last 12 months: over a limit 2 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form M monthly (12 values), outfall 001 form Q quarterly (1 value), outfall 01B form M monthly (6 values), outfall 01C form M monthly (8 values), outfall 01C form V monthly (1 value), outfall 01D form M monthly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 64 reports late

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

Period endingParameterReportedLimitOver by
February 2026Nitrogen, ammonia total [as N], daily maximum242 lb/d≤ 200 lb/d21%
June 2026Nitrogen, ammonia total [as N], daily maximum204.9 lb/d≤ 200 lb/d2%

Limits in force (35)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximum≤ 95 deg Fall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 340 lb/dall year001
Solids, total suspendeddaily maximum≤ 680 lb/dall year001
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]daily maximum≤ 200 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
Solids, total dissolvedmonthly averagereport only (lb/d)all year001
Solids, total dissolveddaily maximumreport only (lb/d)all year001
Mercury, total [as Hg]daily maximumreport only (ng/L)all year001
Mercury, total [as Hg]daily maximum≤ 50 ng/Lall year001
pHminimum≥ 6 SUall year01B
pHmaximum≤ 9 SUall year01B
Solids, total suspendedmonthly averagereport only (mg/L)all year01B
Solids, total suspendeddaily maximumreport only (mg/L)all year01B
Solids, total dissolvedmonthly averagereport only (mg/L)all year01B
Solids, total dissolveddaily maximumreport only (mg/L)all year01B
pHminimum≥ 6 SUall year01C
pHmaximum≤ 9 SUall year01C
Solids, total suspendedmonthly averagereport only (mg/L)all year01C
Solids, total suspendeddaily maximumreport only (mg/L)all year01C
Cyanide, total [as CN]monthly averagereport only (mg/L)all year01C
Cyanide, total [as CN]daily maximum≤ .08 mg/Lall year01C
Thiocyanate [as SCN]daily maximum≤ 1.6 mg/L (alert, not enforceable)all year01C
Solids, total dissolvedmonthly averagereport only (mg/L)all year01C
Solids, total dissolveddaily maximumreport only (mg/L)all year01C
Flow ratemonthly averagereport only (gal/d)all year01D
Flow ratedaily maximumreport only (gal/d)all year01D
Mercury, total [as Hg]monthly averagereport only (ng/L)all year01D
Mercury, total [as Hg]monthly averagereport only (ng/L)all year01D
Mercury, total [as Hg]daily maximumreport only (ng/L)all year01D
Mercury, total [as Hg]daily maximum≤ 50 ng/Lall year01D

How strict are these limits?

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

Same industry: the 31 Chemicals and Allied Products permits in New York.

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/NY0000337 · MCP: https://passage-data.com/mcp