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General Alum New England Corp.

Industrial Inorganic Chemicals, Searsport, Maine. NPDES permit ME0001830 expired Feb 28, 2021; its limits still apply. Last 12 months: over a limit once (last October 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (6 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 1 value over a limit, 0 required values missing, 1 of 12 reports late

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

Period ending	Parameter	Reported	Limit
October 2025	pH, maximum	9.05 SU	≤ 9 SU

Limits in force (7)

Parameter	Statistic	Limit	Months
Temperature, water deg. fahrenheit	daily maximum	≤ 85 deg F	Jun–Aug
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Flow, in conduit or thru treatment plant	monthly average	≤ 124000 gal/d	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (gal/d)	all year
Ammonia [as N] + unionized ammonia	daily maximum	report only (mg/L)	all year
Ammonia [as N] + unionized ammonia	daily maximum	report only (lb/d)	all year

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

Same industry: the 3 Chemicals and Allied Products 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/ME0001830 · MCP: https://passage-data.com/mcp