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National Grid Generation, LLC

Electric Services, major discharger, Northport, New York. NPDES permit NY0005941 expired Jun 30, 2021; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due

About 28 days after each period: outfall 002 form X quarterly (5 values), outfall 005 form X quarterly (5 values), outfall 006 form A quarterly (5 values), outfall 006 form E quarterly (5 values), outfall 006 form I twice a year (5 values), outfall 006 form K monthly (18 values), and 12 more forms

Last report on file

August 2026

Oct 2024 – Sep 2025

0 values over a limit, 2 required values missing, 0 of 108 reports late

Limits in force (124)

How strict are these limits?

• Benzene, daily maximum .8 ug/L — stricter than 97% of 104 other major industrial and other permits nationwide; 2% have the same limit
• Iron, total [as Fe], daily maximum .6 mg/L — stricter than 95% of 22 other major industrial and other permits in New York
• Ethylbenzene, daily maximum 5 ug/L — stricter than 89% of 39 other major industrial and other permits nationwide; 8% have the same limit

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

Same industry: the 39 Electric Services permits in New York.

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NY0005941 · MCP: https://passage-data.com/mcp