EPA · discharge permits by state

Discharge permits in Iowa

1,610Current permits
138Major dischargers
1,486Individual permits

A major discharger is one EPA rates as significant on volume, toxicity or the water it reaches; the rest are minors. An individual permit is written for one operation, while general permit coverage applies a statewide permit to a site that qualifies for it.

By what is permitted in Iowa

By city

Permits

Major dischargers first. Not every permit in Iowa is listed here.

Permit holder	NPDES ID	City	Program	Discharger	Receiving water
ADEL CITY OF STP	IA0041921	ADEL	Publicly owned treatment works	Major	Hickory Creek-North Raccoon River
ALGONA CITY OF STP	IA0022055	ALGONA	Publicly owned treatment works	Major	Drainage Ditch 51-East Fork Des Moines River
AMES WATER POLLUTION CONTROL FACILITY	IA0035955	AMES	Publicly owned treatment works	Major	Drainage Ditch 13-South Skunk River
ANAMOSA CITY OF STP	IA0025895	ANAMOSA	Publicly owned treatment works	Major	Dutch Creek-Wapsipinicon River
ARCHER DANIELS MIDLAND CORN PROCESSING	IA0003620	CLINTON		Major	Cattail Slough-Mississippi River
ARCONIC DAVENPORT WORKS	IA0003395	BETTENDORF		Major	Sugar Creek-Mississippi River
ATLANTIC CITY OF STP	IA0029025	ATLANTIC	Publicly owned treatment works	Major	Spring Creek-East Nishnabotna River
BOONE CITY OF STP	IA0058076	BOONE	Publicly owned treatment works	Major	Honey Creek-Des Moines River
BURLINGTON CITY OF STP	IA0043079	BURLINGTON	Publicly owned treatment works	Major	Dry Branch-Mississippi River
CAMBREX CHARLES CITY, INC.	IA0003557	CHARLES CITY		Major	Bloody Run-Cedar River
CARLISLE CITY OF STP	IA0024554	CARLISLE	Publicly owned treatment works	Major	Yeader Creek-Des Moines River
CARROLL, CITY OF STP	IA0021377	CARROLL	Publicly owned treatment works	Major	City of Carroll-Middle Raccoon River
CASCADE CITY OF STP	IA0027740	CASCADE	Publicly owned treatment works	Major	Village of Cascade-North Fork Maquoketa River
CEDAR FALLS CITY OF STP	IA0036633	CEDAR FALLS	Publicly owned treatment works	Major	Black Hawk Park-Cedar River
CEDAR RAPIDS CITY OF STP	IA0042641	CEDAR RAPIDS	Publicly owned treatment works	Major	Pleasant Run-Cedar River
CENTERVILLE CITY OF STP (EAST)	IA0027472	CENTERVILLE	Publicly owned treatment works	Major	Cooper Creek
CF INDUSTRIES NITROGEN, LLC - PORT NEAL NITROGEN COMPLEX	IA0004014	SERGEANT BLUFF		Major	Bacon Creek-Missouri River
CHARITON CITY OF STP	IA0028924	CHARITON	Publicly owned treatment works	Major	Little White Breast Creek
CHARLES CITY, CITY OF STP	IA0022039	CHARLES CITY	Publicly owned treatment works	Major	Bloody Run-Cedar River
CHEROKEE CITY OF STP	IA0059005	CHEROKEE	Publicly owned treatment works	Major	Railroad Creek-Little Sioux River
CLARINDA CITY OF STP	IA0035190	CLARINDA	Publicly owned treatment works	Major	No Business Creek-West Nodaway River
CLARION, CITY OF STP	IA0030945	CLARION	Publicly owned treatment works	Major	Eagle Creek
CLEAR LAKE SANITARY DISTRICT	IA0058441	CLEAR LAKE	Publicly owned treatment works	Major	Headwaters Beaverdam Creek
CLIMAX MOLYBDENUM COMPANY	IA0059978	FORT MADISON		Major	Tyson Creek-Mississippi River
CLINTON CITY OF STP	IA0035947	CLINTON	Publicly owned treatment works	Major	Mill Creek
CORALVILLE CITY OF STP	IA0020788	CORALVILLE	Publicly owned treatment works	Major	Ralston Creek-Iowa River
COUNCIL BLUFFS CITY OF STP	IA0036641	COUNCIL BLUFFS	Publicly owned treatment works	Major	Folsom Lake-Missouri River
CRESCO CITY OF STP	IA0021334	CRESCO	Publicly owned treatment works	Major	Silver Creek
CRESTON CITY OF STP	IA0035238	CRESTON	Publicly owned treatment works	Major	West Platte River-Platte River
DALLAS CENTER CITY OF STP	IA0035319	DALLAS CENTER	Publicly owned treatment works	Major	Little Walnut Creek-Walnut Creek
DAVENPORT CITY OF STP	IA0043052	DAVENPORT	Publicly owned treatment works	Major	Kickapoo Slu-Mississippi River
DECORAH CITY OF STP	IA0035220	DECORAH	Publicly owned treatment works	Major	Community of Freeport-Upper Iowa River
DENISON MUNICIPAL UTILITIES-STP	IA0023302	DENISON	Publicly owned treatment works	Major	Welsh Creek-Boyer River
DES MOINES METROPOLITAN WRF	IA0044130	DES MOINES	Publicly owned treatment works	Major	Saylor Creek-Des Moines River
DEWITT CITY OF STP	IA0035271	DE WITT	Publicly owned treatment works	Major	Silver Creek
DUBUQUE CITY OF STP	IA0044458	DUBUQUE	Publicly owned treatment works	Major	Frentress Lake-Mississippi River
DYERSVILLE CITY OF STP	IA0023345	DYERSVILLE	Publicly owned treatment works	Major	Durion Creek-North Fork Maquoketa River
EAGLE GROVE, CITY OF STP	IA0034380	EAGLE GROVE	Publicly owned treatment works	Major	Drainage Ditch 46-Boone River
ELDORA CITY OF STP	IA0025933	ELDORA	Publicly owned treatment works	Major	Pine Creek-Iowa River
ELDRIDGE CITY OF STP (SOUTH SLOPE)	IA0063231	ELDRIDGE	Publicly owned treatment works	Major	Crow Creek