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NextEra Energy Seabrook LLc

Electric Services, major discharger, Seabrook, New Hampshire. NPDES permit NH0020338 expired Mar 31, 2007; its limits still apply. Last 12 months: over a limit once (last May 2026), 6 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due

About 15 days after each period: outfall 001 form A monthly (14 values), outfall 001 form B quarterly (4 values), outfall 003 form A monthly (4 values), outfall 022 form A monthly (6 values), outfall 023 form A monthly (6 values), outfall 024 form A monthly (6 values), and 6 more forms

Last report on file

September 2026

Oct 2024 – Sep 2025

2 values over a limit, 0 required values missing, 1 of 136 reports late

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

Limits in force (83)

How strict are these limits?

• pH, maximum 8 SU — stricter than 98% of 791 other major industrial and other permits nationwide; 1% have the same limit
• pH, minimum at least 6.5 SU — stricter than 67% of 808 other major industrial and other permits nationwide; 29% have the same limit
• Iron, total [as Fe], daily maximum 1 mg/L — stricter than 38% of 218 other major industrial and other permits nationwide; 58% have the same limit

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

Same industry: the 6 Electric Services permits in New Hampshire.

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NH0020338 · MCP: https://passage-data.com/mcp