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Croda, Inc.

Industrial Organic Chemicals, New Castle, Delaware. NPDES permit DE0000621 expired Jan 31, 2023; its limits still apply. Last 12 months: no values over a limit, 3 of 30 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 003 form A monthly (14 values), outfall 01A form A monthly (14 values), outfall 01B form A monthly (14 values)
Last report on file
July 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 6 of 36 reports late

Limits in force (42)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily average≤ 84 deg Fall year003
Temperature, water deg. fahrenheitdaily maximum≤ 87 deg Fall year003
BOD, 5-day, 20 deg. Cdaily averagereport only (mg/L)all year003
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year003
BOD, 5-day, 20 deg. Cdaily average≤ 275 lb/dall year003
BOD, 5-day, 20 deg. Cdaily maximum≤ 413 lb/dall year003
pHdaily minimum≥ 6 SUall year003
pHdaily maximum≤ 9 SUall year003
Solids, total suspendeddaily averagereport only (mg/L)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Solids, total suspendeddaily average≤ 275 lb/dall year003
Solids, total suspendeddaily maximum≤ 413 lb/dall year003
Flow, in conduit or thru treatment plantdaily average≤ 1.1 MGDall year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Temperature, water deg. fahrenheitdaily average≤ 84 deg Fall year01A
Temperature, water deg. fahrenheitdaily maximum≤ 87 deg Fall year01A
BOD, 5-day, 20 deg. Cdaily averagereport only (mg/L)all year01A
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year01A
BOD, 5-day, 20 deg. Cdaily average≤ 25 lb/dall year01A
BOD, 5-day, 20 deg. Cdaily maximum≤ 37.5 lb/dall year01A
pHdaily minimum≥ 6 SUall year01A
pHdaily maximum≤ 9 SUall year01A
Solids, total suspendeddaily averagereport only (mg/L)all year01A
Solids, total suspendeddaily maximumreport only (mg/L)all year01A
Solids, total suspendeddaily average≤ 25 lb/dall year01A
Solids, total suspendeddaily maximum≤ 37.5 lb/dall year01A
Flow, in conduit or thru treatment plantdaily average≤ .1 MGDall year01A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01A
Temperature, water deg. fahrenheitdaily average≤ 84 deg Fall year01B
Temperature, water deg. fahrenheitdaily maximum≤ 87 deg Fall year01B
BOD, 5-day, 20 deg. Cdaily averagereport only (mg/L)all year01B
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year01B
BOD, 5-day, 20 deg. Cdaily average≤ 370 lb/dall year01B
BOD, 5-day, 20 deg. Cdaily maximum≤ 556 lb/dall year01B
pHdaily minimum≥ 6 SUall year01B
pHdaily maximum≤ 9 SUall year01B
Solids, total suspendeddaily averagereport only (mg/L)all year01B
Solids, total suspendeddaily maximumreport only (mg/L)all year01B
Solids, total suspendeddaily average≤ 370 lb/dall year01B
Solids, total suspendeddaily maximum≤ 556 lb/dall year01B
Flow, in conduit or thru treatment plantdaily average≤ 1.48 MGDall year01B
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01B

How strict are these limits?

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

Same industry: the 5 Chemicals and Allied Products permits in Delaware.

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Your permit document is the final word. As JSON: /api/v1/permits/DE0000621 · MCP: https://passage-data.com/mcp