USGS National Stream Quality Accounting Network (NASQAN)

Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Region 02 Mid-Atlantic Region
Hudson River below Poughkeepsie, NY	New York Bay	020200	Upper Hudson	01372058	11,740	NMN
Delaware River at Trenton, NJ	Delaware Bay	020401	Northern Delaware	01463500	6,780	NMN
Susquehanna River at Conowingo, MD	Chesapeake Bay	020503	Southern Susquehanna	01578310	27,100	Coastal
Potomac River at Chain Bridge at Washington, DC	Chesapeake Bay	020700	Potomac	01646580	11,570	Coastal
Region 03 South Atlantic-Gulf Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Altamaha River near Everett City, GA	Altamaha River Estuary	030701	Altamaha	02226160	14,000	Coastal
Apalachicola River near Sumatra, FL	Apalachicola Bay	031300	Apalachlcola	02359170	19,200	NMN
Mobile River at Mt. Vernon, AL	Mobile Bay	031602	Mobile Bay-Tombigbee	02470500	43,000	Coastal
Region 04 Great Lakes Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
St. Lawrence River at Cornwall, Ontario, near Massena, NY	Gulf of St Lawrence	041503	St. Lawrence	04264331	298,800	Coastal
Region 05 Ohio Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Wabash River at New Harmony, IN	Ohio River	051201	Wabash	03378500	29,234	MARB
White River at Hazleton, IN	Wabash River	051202	Patoka-White	03374100	11,305	MARB
Ohio River at Cannelton Dam at Cannelton, IN	Lower Mississippi River	051402	Lower Ohio	03303280	97,000	MARB
Ohio River at Dam 53 near Grand Chain, IL	Lower Mississippi River	051402	Lower Ohio	03612500	203,100	MARB
Region 06 Tennessee Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Tennessee River at Highway 60 near Paducah, KY	Ohio River	060400	Lower Tennesee	03609750	40,330	MARB
Region 07 Upper Mississippi Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Mississippi River at Clinton, IA	Gulf of Mexico	070801	Upper Mississippi-Skunk-Wapsipinicon	05420500	85,600	MARB
Mississippi River Below Grafton, IL	Gulf of Mexico	071100	Upper Mississippi-Salt	05587455	171,300	MARB
Illinois River at Valley City, IL	Upper Mississippi River	071300	Lower Illinois	05586100	26,743	MARB
Mississippi River at Thebes, IL	Gulf of Mexico	071401	Upper Mississippi-Meramec	07022000	713,200	MARB
Region 08 Lower Mississippi Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Yazoo River below Steele Bayou near Long Lake, MS	Lower Mississippi River	080302	Yazoo	07288955	13,355	MARB
Mississippi River above Vicksburg at mile 438, MS	Gulf of Mexico	080601	Lower Mississippi-Natchez	322023090544500	1,131,100*	NMN
Mississippi River near St. Francisville, LA	Gulf of Mexico	080701	Lower Mississippi-Baton Rouge	07373420	1,125,300*	MARB
Mississippi River at Baton Rouge, LA	Gulf of Mexico	080701	Lower Mississippi-Baton Rouge	07374000	1,129,766*	MARB
Atchafalaya River at Melville, LA	Atchafalaya Bay	080801	Atchafalaya - Vermilion	07381495	93,316	Coastal
Wax Lake Outlet at Calumet, LA	Gulf of Mexico	080801	Atchafalaya - Vermilion	07381590		MARB
Atchafalaya River at Morgan City, LA	Gulf of Mexico	080801	Atchafalaya - Vermilion	07381600		MARB
Mississippi River at Belle Chasse, LA	Mississippi River Estuary	080901	Southern Mississippi-New Orleans	07374525	1,130,000	Coastal
Region 10 Missouri Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Missouri River at Yankton, SD	Upper Mississippi River	101701	Lewis and Clark Lake	06467500	279,500	MARB
Platte River at Louisville, NE	Missouri River	102002	Lower Platte	06805500	85,329	MARB
Missouri River at Omaha, NE	Upper Mississippi River	102300	Missouri-Little Sioux	06610000	322,800	MARB
Missouri River at Hermann, MO	Upper Mississippi River	103002	Lower Missouri	06934500	522,500	MARB
Region 11 Arkansas-White-Red Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Arkansas River at David D Terry Lock and Dam below Little Rock, AR	Lower Mississippi River	111102	Lower Arkansas-Fourche La Fave	07263620	158,288	MARB
Region 12 Texas-Gulf Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Brazos River near Rosharon, TX	Brazos River Estuary	120701	Southern Brazos	08116650	45,339	NMN
Region 13 Rio Grande Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Rio Grande near Brownsville, TX	Rio Grande River Estuary	130900	Southern Rio Grande	08475000	176,333	Coastal
Region 15 Lower Colorado Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Colorado River at NIB, above Morelos Dam, AZ	Gulf of California	150301	Southern Colorado	09522000	246,700	Coastal
Region 17 Pacific Northwest Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Columbia River near Beaver Army Terminal, OR	Columbia River Estuary	170800	Southern Columbia	14246900	256,900	Coastal
Region 18 California Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Sacramento River at Freeport, CA	San Francisco Bay	180201	Southern Sacramento	11447650	23,000	Coastal
San Joaquin River near Vernalis, CA	San Francisco Bay	180400	San Joaquin	11303500	13,536	Coastal
Region 19 Alaska Region
Station Name	Receiving Water Name	HUC6	HUC6 Name	Station ID	Drainage area at site (square miles)	NASQAN Subnetwork
Yukon River at Pilot Station, AK	Norton Sound	190408	Yukon Delta	15565447	321,000	Coastal

* Drainage areas for stations 07373420 and 07374000 shown are as reported in the National Water Information System (NWIS). Drainage area for station 322023090544500 determined as the difference in drainage area at station 07289000 (Mississippi River at Vicksburg, MS) and station 07288955 (Yazoo River below Steele Bayou near Long Lake, MS).

Complete Station List in Hydrologic Unit Code Order