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Cooke Aquaculture USA Inc.

Fish Hatcheries And Preserves, East Machias, Maine. NPDES permit ME0110086 expired Oct 31, 2026. Last 12 months: no values over a limit, 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (8 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (8)

Parameter	Statistic	Limit	Months
Solids, total suspended	monthly average	≤ 6 mg/L	all year
Solids, total suspended	daily maximum	≤ 10 mg/L	all year
Solids, total suspended	monthly average	≤ 167 lb/d	all year
Solids, total suspended	daily maximum	≤ 834 lb/d	all year
Biomass, fish	daily maximum	report only (lb/d)	all year
Flow, in conduit or thru treatment plant	monthly average	≤ 10 MGD	all year
Formalin	monthly average	report only (lb/d)	all year
Formalin	daily maximum	≤ 100 lb/d	all year

How strict are these limits?

Solids, total suspended, daily maximum 10 mg/L — stricter than 83% of 92 other minor industrial and other permits in Maine; 16% have the same limit
Solids, total suspended, monthly average 6 mg/L — stricter than 79% of 68 other minor industrial and other permits in Maine; 21% have the same limit

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

Same industry: the 17 Fishing, Hunting and Trapping permits in Maine.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/ME0110086 · MCP: https://passage-data.com/mcp