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Mining and Quarrying of Nonmetallic Minerals — NPDES discharge permits in Iowa

Of the 4 permits in EPA's SIC 14 in IA, 1 went over a limit between 2025-10-01 and 2026-09-30 (pH: 1; Solids, total suspended: 1). 0 are past the expiry date EPA's file holds; 1 has a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.

FacilityLast 12 monthsPermit
PATTISON SAND CO., LLC
IA0080624 · Industrial Sand
Over a limit 6×: pH (5×), Solids, total suspended (1×)Expires Nov 30, 2029
WENDLING QUARRIES, INC.
IA0080926 · Crushed And Broken Limestone
No value over a limitExpires Apr 30, 2030
WENDLING QUARRIES, INC.
IA0080934 · Crushed And Broken Limestone
No value over a limitExpires Jan 31, 2031
WENDLING QUARRIES, INC.
IA0080951 · Crushed And Broken Limestone
No value over a limitRenewal application overdue

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=IA&sic=14, 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