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Bastech LLC

Chemical Preparations, Natchez, Mississippi. NPDES permit MS0046639, in force until Feb 28, 2030. Last 12 months: no values over a limit, 5 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form Y yearly
Last report on file: None
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 1 report late

Limits in force (5)

Parameter	Statistic	Limit	Months
Temperature, water deg. fahrenheit	maximum	≤ 90 deg F	all year
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Flow, total	annual average	report only (MGD)	all year
Flow, total	daily maximum	report only (MGD)	all year

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

Same industry: the 23 Chemicals and Allied Products permits in Mississippi.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MS0046639 · MCP: https://passage-data.com/mcp