EPA · discharge permits by pollutant and parameter

Hardness, Ca Mg Calculated [mg/L as CaCO3]

92Permits carrying a limit
1With a recorded exceedance
1States

EPA identifies this parameter by code 46570. A permit listed here carries a numeric limit on hardness, ca mg calculated [mg/l as caco3] in its discharge; an exceedance is a monitoring result above that limit, as reported to EPA.

By state

Minnesota87

By watershed

The subbasins of the national Watershed Boundary Dataset carrying the most permits with a limit on hardness, ca mg calculated [mg/l as caco3].

Permits

Permit holder	NPDES ID	City	State	Program	Discharger	Receiving water
THIEF RIVER FALLS WWTP	MN0021431	THIEF RIVER FALLS	MN	Publicly owned treatment works	Major	RED L R VIA DT 70
WINNEBAGO WWTP	MN0025267	WINNEBAGO	MN	Publicly owned treatment works	Major	BLUE EARTH R
LITCHFIELD WWTP	MN0023973	LITCHFIELD	MN	Publicly owned treatment works	Major	JEWETT CR
MADELIA WWTP	MN0024040	MADELIA	MN	Publicly owned treatment works	Major	City of Madelia-Watonwan River
WORTHINGTON INDUSTRIAL WWTP	MN0031178	WORTHINGTON	MN	Publicly owned treatment works	Major	Upper Okabena Creek
SOUTHERN MINNESOTA BEET SUGAR - RENVILLE	MN0040665	RENVILLE	MN		Major	Headwaters West Fork Beaver Creek
ALEXANDRIA LAKES AREA SANITARY DISTRICT	MN0040738	ALEXANDRIA	MN	Publicly owned treatment works	Major	Lake Le Homme Dieu
LONG PRAIRIE WWTP	MN0066079	LONG PRAIRIE	MN	Publicly owned treatment works	Major	LONG PRAIRIE RIVER
CMP SARTELL LLC SARTELL MILL	MN0000973	SARTELL	MN		Major	MISS R
COLD SPRING WWTP	MN0023094	COLD SPRING	MN	Publicly owned treatment works	Major	Cedar Island Lake-Sauk River
MELROSE WWTP	MN0020290	MELROSE	MN	Publicly owned treatment works	Major	SAUK R
DELANO WWTP	MN0051250	DELANO	MN	Publicly owned treatment works	Major	City of Rockford-Crow River
MET COUNCIL - ROGERS WRRF	MN0029629	ROGERS	MN	Publicly owned treatment works	Major	UNN DT TO UNN CR
GLENCOE WWTP	MN0022233	GLENCOE	MN	Publicly owned treatment works	Major	Buffalo Creek
HUTCHINSON WWTP	MN0055832	HUTCHINSON	MN	Publicly owned treatment works	Major	CROW R S FK
FLINT HILLS RESOURCES PINE BEND LLC	MN0000418	ROSEMOUNT	MN		Major	Spring Lake-Mississippi River
MET COUNCIL - METROPOLITAN WWTP	MN0029815	SAINT PAUL	MN	Publicly owned treatment works	Major	MISS R
REDWOOD FALLS WWTP	MN0020401	REDWOOD FALLS	MN	Publicly owned treatment works	Major	Smith Creek-Minnesota River
SAINT PETER WWTP	MN0022535	SAINT PETER	MN	Publicly owned treatment works	Major	City of Saint Peter-Minnesota River
FAIRMONT WWTP	MN0030112	FAIRMONT	MN	Publicly owned treatment works	Major	BLUE EARTH R VIA CENTER CR
SAINT JAMES WWTP	MN0024759	SAINT JAMES	MN	Publicly owned treatment works	Major	SAINT JAMES CR VIA SL
LE SUEUR WWTF	MN0068195	LE SUEUR	MN	Publicly owned treatment works	Major	City of Le Sueur-Minnesota River
MET COUNCIL - SENECA WWTP	MN0030007	EAGAN	MN	Publicly owned treatment works	Major	Minnesota River
CHISAGO LAKES JOINT STC	MN0055808	CHISAGO CITY	MN	Publicly owned treatment works	Major	UNNAMED CR
RED WING WWTP	MN0024571	RED WING	MN	Publicly owned treatment works	Major	Hay Creek
FARIBAULT WWTP	MN0030121	FARIBAULT	MN	Publicly owned treatment works	Major	STRAIGHT R
OWATONNA WWTP	MN0051284	OWATONNA	MN	Publicly owned treatment works	Major	Maple Creek-Straight River
PLAINVIEW-ELGIN SANITARY DISTRICT WWTP	MN0055361	PLAINVIEW	MN	Publicly owned treatment works	Major	Lower North Fork Whitewater River
KASSON WWTP	MN0050725	KASSON	MN	Publicly owned treatment works	Major	Masten Creek-South Branch Middle Fork Zumbro River
ROCHESTER WWTP/WATER RECLAMATION PLANT	MN0024619	ROCHESTER	MN	Publicly owned treatment works	Major	South Fork Zumbro River
AUSTIN WWTP	MN0022683	AUSTIN	MN	Publicly owned treatment works	Major	City of Austin-Cedar River
ALBERT LEA WWTP	MN0041092	ALBERT LEA	MN	Publicly owned treatment works	Major	County Ditch No 16-Shell Rock River
MOORHEAD WWTP	MN0049069	MOORHEAD	MN	Publicly owned treatment works	Major	County Ditch No 41
NORTHSHORE MINING CO - SILVER BAY	MN0055301	SILVER BAY	MN		Major	City of Silver Bay-Frontal Lake Superior
US STEEL CORP - MN ORE OPERATIONS - MINNTAC TAILINGS BASIN	MN0057207	MOUNTAIN IRON	MN		Major	Sand River
CENTRAL IRON RANGE SANITARY SEWER DISTRICT WWTP	MN0020117	CHISHOLM	MN	Publicly owned treatment works	Major	CHISHOLM CR
HIBBING WWTP SOUTH PLANT	MN0030643	HIBBING	MN	Publicly owned treatment works	Major	E SWAN R
VIRGINIA WWTP	MN0030163	VIRGINIA	MN	Publicly owned treatment works	Major	MANGANIKA L VIA MANGANIKA CR
DAHLONEGA, CITY OF (DAHLONEGA WPCP)	GA0026077	DAHLONEGA	GA	Publicly owned treatment works	Major	Lower Brasstown Creek
MINNESOTA POWER - BOSWELL ENERGY CENTER	MN0001007	COHASSET	MN		Major	Mississippi River