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Of the 47 permits in EPA's SIC 4941 in IA, 16 went over a limit between 2025-10-01 and 2026-09-30 (pH: 6; Solids, total suspended: 4; Chlorine, total residual: 3). 15 are past the expiry date EPA's file holds; 8 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
| Facility | Last 12 months | Permit |
|---|---|---|
| CITY OF VARINA IA0051122 · Water Supply | Over a limit 44×: Chlorine, total residual (44×) | Expires Dec 31, 2029 |
| CITY OF MISSOURI VALLEY IA0080454 · Water Supply | Over a limit 9×: Iron, total [as Fe] (8×), Solids, total suspended (1×) | Expires Jun 30, 2029 |
| LYON & SIOUX RURAL WATER SYSTEM IA0080535 · Water Supply | Over a limit 7×: pH (7×) | Permit past the expiry date EPA's file holds |
| CITY OF FAIRFIELD IA0082325 · Water Supply | Over a limit 4×: Sulfate, total [as SO4] (4×) | Expires Feb 28, 2031 |
| CITY OF IOWA CITY IA0076082 · Water Supply | Over a limit 4×: pH (4×) | Expires Jan 31, 2029 |
| WEST DES MOINES WATER WORKS IA0053682 · Water Supply | Over a limit 4×: Chlorine, total residual (4×) | Expires Jul 31, 2030 |
| CITY OF POLK CITY IA0082384 · Water Supply | Over a limit 3×: pH (3×) | Expires Jan 31, 2029 |
| CITY OF MAXWELL IA0082961 · Water Supply | Over a limit 2×: Solids, total suspended (2×) | Renewal application due Mar 4, 2027 |
| CITY OF OAKLAND IA0081523 · Water Supply | Over a limit 2×: Sulfate, total [as SO4] (2×) | Permit past the expiry date EPA's file holds |
| IOWA LAKES REGIONAL WATER IA0081183 · Water Supply | Over a limit 2×: Solids, total suspended (2×) | Expires Jan 31, 2031 |
| POWESHIEK WATER ASSOCIATION IA0080969 · Water Supply | Over a limit 2×: pH (2×) | Expires May 31, 2029 |
| Burlington Municipal Water Works IA0084271 · Water Supply | Over a limit 1×: Chlorine, total residual (1×) | Permit past the expiry date EPA's file holds |
| CITY OF CHARLES CITY IA0003182 · Water Supply | Over a limit 1×: Iron, total [as Fe] (1×) | Expires Jan 31, 2029 |
| CITY OF LEON IA0081787 · Water Supply | Over a limit 1×: Solids, total suspended (1×) | Permit past the expiry date EPA's file holds |
| CITY OF OSCEOLA IA0082953 · Water Supply | Over a limit 1×: pH (1×) | Expires Jul 31, 2031 |
| City of Boone IA0079421 · Water Supply | Over a limit 1×: pH (1×) | Expires Aug 31, 2031 |
| CENTRAL IOWA WATER ASSOCIATION IA0079693 · Water Supply | No value over a limit | Permit past the expiry date EPA's file holds |
| CENTRAL IOWA WATER WORKS (DMWW) IA0079669 · Water Supply | No value over a limit | Expires Dec 31, 2029 |
| CHEROKEE RURAL WATER DISTRICT IA0053550 · Water Supply | No value over a limit | Expires Nov 30, 2029 |
| CHEROKEE RURAL WATER DISTRICT NO. 1 IA0082791 · Water Supply | No value over a limit | Expires Jan 31, 2029 |
| CITY OF FORT MADISON IA0081001 · Water Supply | No value over a limit | Expires Jun 30, 2031 |
| CITY OF GREENFIELD IA0048453 · Water Supply | No value over a limit | Renewal application due Oct 3, 2027 |
| CITY OF MASON CITY IA0077305 · Water Supply | No value over a limit | Expires May 31, 2029 |
| CITY OF PELLA IA0075001 · Water Supply | No value over a limit | Renewal application due Dec 2, 2026 |
| CITY OF RALSTON IA0082392 · Water Supply | No value over a limit | Renewal application due Nov 2, 2027 |
| CITY OF ROWAN IA0053307 · Water Supply | No value over a limit | Permit past the expiry date EPA's file holds |
| CITY OF SERGEANT BLUFF IA0052005 · Water Supply | No value over a limit | Permit past the expiry date EPA's file holds |
| CITY OF THURMAN IA0052637 · Water Supply | No value over a limit | Permit past the expiry date EPA's file holds |
| COON RAPIDS MUNICIPAL UTILITIES IA0049692 · Water Supply | No value over a limit; 2 required values not reported | Expires May 31, 2030 |
| CORNING MUNICIPAL UTILITIES IA0076759 · Water Supply | No value over a limit | Expires May 31, 2030 |
| COUNCIL BLUFFS WATER WORKS IA0077470 · Water Supply | No value over a limit | Permit past the expiry date EPA's file holds |
| COUNCIL BUFFS WATER WORKS IA0082074 · Water Supply | No value over a limit | Renewal application due Jan 2, 2028 |
| CRESTON CITY WATER WORKS IA0078514 · Water Supply | No value over a limit | Renewal application due Dec 2, 2026 |
| City of Montezuma IA0084310 · Water Supply | No value over a limit | Expires Dec 31, 2029 |
| DES MOINES WATER WORKS IA0052975 · Water Supply | No value over a limit | Permit past the expiry date EPA's file holds |
| HARLAN MUNICIPAL UTILITIES IA0084387 · Water Supply | No value over a limit | Permit past the expiry date EPA's file holds |
| IOWA AMERICAN WATER COMPANY IA0079430 · Water Supply | No value over a limit | Expires Aug 31, 2030 |
| LAKE PANORAMA ASSOCIATION IA0084212 · Water Supply | No value over a limit | Expires Dec 31, 2029 |
| MARSHALLTOWN WATER WORKS IA0075345 · Water Supply | No value over a limit | Permit past the expiry date EPA's file holds |
| OSCEOLA COUNTY RURAL WATER SYSTEM IA0052702 · Water Supply | No value over a limit | Permit past the expiry date EPA's file holds |
| OTTUMWA WATER WORKS IA0000035 · Water Supply | No value over a limit | Renewal application overdue |
| RATHBUN REGIONAL WATER ASSOCIATION, INC. IA0075418 · Water Supply | No value over a limit | Expires Apr 30, 2029 |
| SOUTHERN IOWA RURAL WATER ASSOCIATION IA0053504 · Water Supply | No value over a limit | Expires Oct 31, 2028 |
| SOUTHWEST POLK WATER SERVICE IA0052799 · Water Supply | No value over a limit; 30 required values not reported | Permit past the expiry date EPA's file holds |
| WAPELLO RURAL WATER ASSOCIATION IA0082511 · Water Supply | No value over a limit | Permit past the expiry date EPA's file holds |
| WEST CENTRAL IOWA RURAL WATER ASSOCIATION IA0052484 · Water Supply | No value over a limit | Renewal application due May 4, 2027 |
| WINTERSET WATER UTILITY IA0079961 · Water Supply | No value over a limit | Expires Jan 31, 2030 |
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=4941, 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