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Of the 17 permits in EPA's SIC 14 in MI, 8 went over a limit between 2025-10-01 and 2026-09-30 (pH: 4; Hydrogen sulfide: 3; Sulfide, dissolved, [as S]: 2). 11 are past the expiry date EPA's file holds; 3 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
All Michigan permitsAll states
| Facility | Last 12 months | Permit |
|---|---|---|
| Great Lakes Aggregate-Sylvania MI0044491 · major · Construction Sand And Gravel | Over a limit 15×: Hydrogen peroxide (11×), Hydrogen sulfide (3×), pH (1×) | Permit past the expiry date EPA's file holds |
| Michigan Paving and Materials MI0004821 · major · Crushed And Broken Limestone | Over a limit 13×: Hydrogen sulfide (10×), Strontium, total [as Sr] (3×) | Permit past the expiry date EPA's file holds |
| Michigan Paving and Materials MI0051195 · major · Crushed And Broken Limestone | Over a limit 11×: Hydrogen sulfide (11×) | Permit past the expiry date EPA's file holds |
| St. Marys Cement U.S. LLC MI0003158 · major · Crushed And Broken Limestone | Over a limit 11×: Diesel range organics diesel, total, wtr (10×), pH (1×) | Expires Oct 1, 2029 |
| CSI Sands (N.E.) Ltd. MI0042960 · Industrial Sand | Over a limit 2×: pH (2×) | Permit past the expiry date EPA's file holds |
| United States Gypsum Company MI0002437 · Miscellaneous Nonmetallic Minerals | Over a limit 2×: Sulfide, dissolved, [as S] (2×) | Renewal application due Apr 4, 2028 |
| Bay-Houston Towing Co. Michigan Peat Division MI0054461 · Miscellaneous Nonmetallic Minerals | Over a limit 1×: pH (1×) | Renewal application due Apr 4, 2027 |
| Holcim (US) Incorporated MI0002020 · Crushed And Broken Limestone | Over a limit 1×: Sulfide, dissolved, [as S] (1×) | Permit past the expiry date EPA's file holds |
| Al-Par Peat Company MI0045128 · Miscellaneous Nonmetallic Minerals | No value over a limit; 84 required values not reported | Permit past the expiry date EPA's file holds |
| DTE Electric Company MI0001953 · major · Crushed And Broken Limestone | No value over a limit; 4 required values not reported | Renewal application due Apr 4, 2027 |
| GFL Environmental USA Inc. MI0060256 · Construction Sand And Gravel | No value over a limit | Permit past the expiry date EPA's file holds |
| General Shale Brick, Inc. MI0047333 · Clay And Related Minerals | No value over a limit | Expires Oct 1, 2030 |
| Gold Bond Building Products, LLC MI0003531 · Miscellaneous Nonmetallic Minerals | No value over a limit; 6 required values not reported | Expires Oct 1, 2029 |
| Michigan Materials and Aggregate Company MI0026514 · major · Crushed And Broken Limestone | No value over a limit; 1 required values not reported | Permit past the expiry date EPA's file holds |
| O-N Minerals (Michigan) Company MI0004111 · major · Crushed And Broken Limestone | No value over a limit; 1 required values not reported | Permit past the expiry date EPA's file holds |
| Redlands Quarries NY Inc MI0003468 · major · Crushed And Broken Limestone | No value over a limit | Permit past the expiry date EPA's file holds |
| U.S. Silica Company MI0001368 · major · Crushed And Broken Limestone | No value over a limit | Permit 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=MI&sic=14, narrowed with &over_limit=true, ¶meter=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