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Transportation Equipment — NPDES discharge permits in Massachusetts

Of the 4 permits in EPA's SIC 37 in MA, 1 went over a limit between 2025-10-01 and 2026-09-30 (pH: 1). 4 are past the expiry date EPA's file holds; 0 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.

FacilityLast 12 monthsPermit
Boston Ship Repair
MA0040142 · Ship Building And Repairing
Over a limit 1×: pH (1×)Permit past the expiry date EPA's file holds
GENERAL ELECTRIC AVIATION
MA0003905 · major · Aircraft Engines And Engine Parts
No value over a limitPermit past the expiry date EPA's file holds
POWER PRODUCT SYSTEMS, LLC
MA0026247 · Motor Vehicle Parts And Accessories
No value over a limit; 7 required values not reportedPermit past the expiry date EPA's file holds
WYMAN-GORDON COMPANY
MA0004341 · major · Aircraft Parts And Equipment
No value over a limit; 1 required values not reportedPermit past the expiry date EPA's file holds

The record is EPA's ICIS-NPDES file of 2026-10-15: values filed against each limit between Oct 1, 2025 and Sep 30, 2026. No reports on file may be EPA's gap, not the facility's.

For programs and AI agents: this screen as JSON at /api/v1/permits?state=MA&sic=37, narrowed with &over_limit=true, &parameter=phosphorus or &renewal=due; or add https://passage-data.com/mcp as a remote MCP server (tool list_permits). Free, no key. llms.txt

From EPA's ECHO data, not the permit document itself: your permit is the final word. All states