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SIC 86 — NPDES discharge permits in Michigan

Of the 9 permits in EPA's SIC 86 in MI, 4 went over a limit between 2025-10-01 and 2026-09-30 (Nitrogen, ammonia total [as N]: 3; BOD, carbonaceous [5 day, 20 C]: 1; Coliform, fecal general: 1). 3 are past the expiry date EPA's file holds; 2 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.

FacilityLast 12 monthsPermit
Cobblestone Real Estate LLC
MI0057704 · Civic And Social Associations
Over a limit 9×: Solids, suspended percent removal (3×), Coliform, fecal general (2×), Nitrogen, ammonia total [as N] (2×)Permit past the expiry date EPA's file holds
MI Homes of Michigan LLC
MI0060250 · Civic And Social Associations
Over a limit 6×: Nitrogen, ammonia total [as N] (5×), BOD, carbonaceous [5 day, 20 C] (1×)Renewal application due Apr 4, 2028
Thornton Farms Condominium Association
MI0056405 · Civic And Social Associations
Over a limit 5×: Phosphorus, total [as P] (5×)Renewal application due Apr 4, 2028
Saline Valley Farms Water and Sewer Agency, Inc.
MI0057012 · Civic And Social Associations
Over a limit 2×: Nitrogen, ammonia total [as N] (2×)Expires Oct 1, 2029
Fosdick Glen Development, LLC
MI0060287 · Civic And Social Associations
No value over a limitPermit past the expiry date EPA's file holds
Four Stars, LLC
MI0058906 · Civic And Social Associations
No value over a limit; 27 required values not reportedExpires Oct 1, 2030
SE Michigan Land Holding LLC
MI0057878 · Civic And Social Associations
No value over a limitPermit past the expiry date EPA's file holds
Toll Northeast V Corp.
MI0060383 · Civic And Social Associations
No value over a limit; 29 required values not reportedExpires Oct 1, 2029
Toll Northeast V Corp.
MI0060385 · Civic And Social Associations
No value over a limit; 24 required values not reportedExpires Oct 1, 2029

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=MI&sic=86, 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