Table 2. Population and land-cover percentages for drainage basins for sampling sites.—Continued

[USGS, U.S.Geological Survey; US, upstream from wastewater-effluent discharge; DS, downstream from wastewater-effluent discharge; WWTP, wastewater-treatment plant; Minn., ]

Position in Land-cover percentages Drainage Number Site USGS station relation to area of people number identification USGS station name wastewater- (square per square Open Grass- Crop- Wet- (fig. 3) number effluent Developed Barren Forest kilometer) kilometer water land land land discharge 1 05137050 Williams Creek above WWTP at US 32.8 1 0 2 0 63 6 1 28 Williams, Minn. 3 05137055 Williams Creek below WWTP at DS 32.8 1 0 2 0 63 6 1 28 Williams, Minn. 4 475504091545401 Shagawa Lake at mouth of Burntside US 184.9 2 21 1 0 71 5 0 2 River near Ely, Minn. 5 475436091522501 Shagawa Lake near Ely WWTP DS 240.8 4 20 1 0 73 4 0 2 outflow at Ely, Minn. 7 04018765 Elbow Creek above Eveleth WWTP US 4.45 238 1 32 9 46 11 0 1 at Eveleth, MN 9 04018767 Elbow Creek below Eveleth WWTP DS 4.48 237 1 32 9 46 11 0 1 at Eveleth, Minn. 10 04024025 St. Louis River at Hwy. 23 above US 9,253 11 4 3 1 62 10 0 21 Fond Du Lac, Minn. 11 464523092065501 Lake Superior in St. Louis Bay at DS 9,583 14 4 3 1 62 10 0 20 Duluth, Minn. 13 05040340 Pelican River above WWTP at US 892.8 20 21 6 0 29 23 15 5 Pelican Rapids, Minn. 15 05040345 Pelican River below WWTP at DS 894.8 20 21 6 0 29 23 15 5 Pelican Rapids, Minn. 16 05082520 Red River of the North above US 77,337 6 6 4 0 8 15 56 10 WWTP at East Grand Forks, Minn. 18 475854097032001 Red River of the North below DS 77,343 6 6 4 0 8 15 56 10 WWTP at East Grand Forks, Minn. 19 05211020 above WWTP at US 8,475 8 16 3 0 57 8 1 16 Grand Rapids, Minn. 21 05211030 Mississippi River below WWTP at DS 8,486 8 16 3 0 57 8 1 16 Grand Rapids, Minn. 22 05270181 Sauk River above Sauk Centre US 970.5 10 6 5 0 7 25 51 5 WWTP at Sauk Centre, Minn. 24 05270183 Sauk River below Sauk Centre DS 972.2 11 6 5 0 7 25 51 5 WWTP at Sauk Centre, Minn. Methods 11 - 3 3 5 9 3 5 3 8 3 8 3 5 3 5 3 2 2 land Wet 74 74 51 45 74 51 73 18 67 18 67 55 66 55 67 75 75 land Crop - 8 8 9 9 4 4 26 14 26 28 19 28 19 10 19 10 19 land Grass - 3 3 7 4 7 4 1 1 7 1 7 1 1 1 20 25 25 Forest 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Land-cover percentages Barren 6 5 6 6 5 6 6 6 7 7 6 10 10 13 13 12 12 Developed 7 5 6 6 5 6 4 4 9 3 9 3 7 6 6 11 11 Open water 5 5 23 12 35 23 12 23 96 96 57 14 58 14 23 44 44 Number of people kilometer per square 18.5 18.5 67.5 67.9 area 660.5 660.5 692 696.4 238.2 238.5 (square Drainage 1,162 1,124 1,460 1,134 1,463 1,160 kilometer) 95,703 DS US US US DS DS US US DS DS US US DS DS US US DS effluent discharge relation to Position in wastewater-

USGS station name Hutchinson, Minn. Melrose, Minn. Molasses St. Paul, Minn. WWTP at Lester Prairie, Minn. WWTP Melrose, Minn. WWTP at Lester Prairie, Minn. WWTP at Zimmerman, Minn. near Lynd, Minn. near Lynd, at Zimmerman, Minn. near Lynd, Minn. near Lynd, Litchfield, Minn. Marshall, Minn. Marshall, Minn. WWTP at Hutchinson, Minn. WWTP Fairmont, Minn. Fairmont, Minn. South Fork of the Crow River below Sauk River above Melrose WWTP at WWTP Sauk River above Melrose South Fork Crow River above Sauk River below Melrose WWTP at WWTP Sauk River below Melrose South Fork Crow River below Tibbets Brook above WWTP outflow WWTP Brook above Tibbets Redwood River above Lynd WWTP WWTP Redwood River above Lynd Tibbets Brook below WWTP outflow WWTP Brook below Tibbets Redwood River below Lynd WWTP WWTP Redwood River below Lynd Jewitts Creek at U.S. Hwy. 12 in Jewitts Creek at U.S. Hwy. Redwood River above WWTP below WWTP Redwood River above Jewitts Creek near Litchfield, Minn. Redwood River below WWTP near WWTP Redwood River below South Fork of the Crow River above Center Creek on Co. Rd. 143, at Center Creek below WWTP at WWTP Center Creek below Mississippi River at Industrial number USGS station identification 05278580 05270195 05278650 05270197 05278655 05274850 05314985 05274855 05314988 05278080 05315045 05278083 05315050 05278570 05318170 05318171 05331005 Population and land-cover percentages for drainage basins sampling sites.—Continued

36 25 37 27 39 28 40 30 42 31 43 33 45 34 46 48 49 Site (fig. 3) number Table 2. Table plant; Minn., Minnesota] wastewater-treatment WWTP, discharge; DS, downstream from wastewater-effluent discharge; [USGS, U.S.Geological Survey; US, upstream from wastewater-effluent Table 2. Population and land-cover percentages for drainage basins for sampling sites.—Continued

[USGS, U.S.Geological Survey; US, upstream from wastewater-effluent discharge; DS, downstream from wastewater-effluent discharge; WWTP, wastewater-treatment plant; Minn., Minnesota]

Position in Land-cover percentages Drainage Number Site USGS station relation to area of people number identification USGS station name wastewater- (square per square Open Grass- Crop- Wet- (fig. 3) number effluent Developed Barren Forest kilometer) kilometer water land land land discharge 51 05331400 Mississippi River at South St. Paul, DS 95,712 36 6 6 0 20 14 45 9 Minn. 52 05337003 Grindstone River above WWTP near US 206.7 9 4 0 40 32 3 19 Hinckley, Minn. 54 05337005 Grindstone River below Hinckley, DS 209.4 9 2 4 0 40 32 4 19 Minn. 55 05355260 Mississippi River (Lake Pepin) US 122,558 34 5 6 0 25 15 39 9 above Lake City, Minn. 57 05355331 Mississippi River (Lake Pepin) at DS 122,578 34 5 6 0 25 15 39 9 Mile 771 near Lake City, Minn. 58 05372995 South Fork at Roches- US 778.9 106 0 15 0 8 23 52 1 ter, Minn. 60 05373005 South Fork Zumbro River below DS 807.9 111 0 15 0 8 24 51 1 WWTP near Rochester, Minn. 61 05383820 Spring Valley Creek above Spring US 40.5 40 0 11 0 2 6 81 0 Valley WWTP outflow at Spring Valley, Minn. 63 05383822 Spring Valley Creek below Spring DS 40.6 41 0 11 0 2 6 81 0 Valley WWTP outflow at Spring Valley, Minn. 64 05455975 Cedar River above treatment plant at US 631 29 0 9 0 1 6 82 2 Austin, Minn. 66 05455978 Cedar River below treatment plant at DS 631.6 30 0 9 0 1 6 82 2 Austin, Minn. 67 05474883 above WWTP US 8.1 672 0 66 0 0 3 30 1 outflow at Worthington, Minn. 70 05474884 Okabena Creek below WWTP DS 15.06 386 0 46 0 0 3 49 1 outflow at Worthington, Minn. 71 06483005 Rock River above WWTP near US 1,085 6 0 6 0 1 17 76 1 Luverne, Minn. 73 06483010 Rock River below WWTP near DS 1,085 6 0 6 0 1 17 76 1 Luverne, Minn.