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Administration of Environmental Quality and Housing Programs — NPDES discharge permits in Illinois

Of the 37 permits in EPA's SIC 95 in IL, 7 went over a limit between 2025-10-01 and 2026-09-30 (Nitrogen, ammonia total [as N]: 5; Chlorine, total residual: 2; BOD, carbonaceous [5 day, 20 C]: 1). 0 are past the expiry date EPA's file holds; 16 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.

FacilityLast 12 monthsPermit
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0054038 · Land, Mineral, Wildlife Conservation
Over a limit 9×: Nitrogen, ammonia total [as N] (4×), Chlorine, total residual (2×), Solids, total suspended (2×)Expires Oct 31, 2029
ROCK CUT STATE PARK
IL0054054 · Land, Mineral, Wildlife Conservation
Over a limit 5×: Nitrogen, ammonia total [as N] (4×), BOD, carbonaceous [5 day, 20 C] (1×)Expires Feb 28, 2029
LINCOLN TRAIL STATE PARK
IL0053945 · Land, Mineral, Wildlife Conservation
Over a limit 3×: Nitrogen, ammonia total [as N] (2×), Oxygen, dissolved [DO] (1×)Expires Jan 31, 2029
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0053937 · Land, Mineral, Wildlife Conservation
Over a limit 2×: Nitrogen, ammonia total [as N] (2×)Expires Nov 30, 2028
RAMSEY LAKE STATE PARK
IL0037974 · Land, Mineral, Wildlife Conservation
Over a limit 2×: Nitrogen, ammonia total [as N] (2×)Expires Jul 31, 2029
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0049093 · Land, Mineral, Wildlife Conservation
Over a limit 1×: Coliform, fecal general (1×)Expires Mar 31, 2031
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0055506 · Land, Mineral, Wildlife Conservation
Over a limit 1×: Chlorine, total residual (1×)Renewal application overdue
ARGYLE LAKE STATE PARK STP
IL0054887 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Nov 1, 2026
BUFFALO ROCK STATE PARK
IL0054071 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Mar 31, 2029
DEAN EHRGOTT
IL0032191 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Jun 30, 2029
DEPARTMENT OF THE ARMY
IL0025933 · Air, Water, & Solid Waste Management
No value over a limitRenewal application due Dec 3, 2027
ELDON HAZLET STATE PARK CAMPGROUND
IL0053996 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Dec 31, 2028
GIANT CITY STATE PARK - LODGE
IL0049794 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Oct 3, 2027
IDNR-PERE MARQUETTE STATE PARK
IL0076121 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Mar 4, 2027
IILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0070386 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Jun 30, 2029
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0051811 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application overdue
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0053953 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Jan 2, 2028
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0054062 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Oct 3, 2027
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0054089 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Aug 31, 2029
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0059838 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Nov 30, 2029
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0066273 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Dec 31, 2028
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0067504 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Jan 31, 2030
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0068977 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Jul 31, 2029
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0070017 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Feb 28, 2029
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0072877 · Land, Mineral, Wildlife Conservation
No value over a limitExpires May 31, 2031
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0073725 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Apr 3, 2027
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
IL0073903 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Oct 31, 2030
ILLINOIS DEPARTMENT OF NATURAL RESOURCES, DIVISION OF ENGINEERING
IL0067601 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Apr 3, 2028
ILLINOIS DEPARTMENT OF NATURAL RESOURCES-FOX RIDGE STATE PARK
IL0051250 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Jul 4, 2027
ILLINOIS DEPT OF NATURAL RESOURCES
IL0067512 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Feb 1, 2027
JIM EDGAR PANTHER CREEK - QUESTING HILLS CAMPGROUND
IL0073369 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Jan 31, 2029
JUBILEE COLLEGE STATE HISTORIC SITE
IL0054674 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Jul 4, 2027
LAKE MURPHYSBORO STATE PARK CAMPGROUND
IL0051853 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Jan 2, 2028
LIBERTY UTILITIES (FOX RIVER) LLC
IL0064416 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due May 4, 2027
PIKE COUNTY HOUSING AUTHORITY
IL0045438 · Housing Programs
No value over a limitExpires Oct 31, 2030
RED HILLS STATE PARK
IL0051837 · Land, Mineral, Wildlife Conservation
No value over a limitRenewal application due Nov 1, 2026
WHITE PINES FOREST STATE PARK
IL0053911 · Land, Mineral, Wildlife Conservation
No value over a limitExpires Jul 31, 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=IL&sic=95, 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