Scientific Investigations Report 2007–5186
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5186
Table 8. Annual mean discharge of total nitrogen, total phosphorus, and suspended sediment loads in the Columbia River, monitored Columbia River tributaries, and point sources discharging directly to the Columbia River, Oregon and Washington, water year 2000.
[Bold type indicates start of reach (see figure 12); shaded rows indicate monitoring site (see table 1); italicized type indicates point-source discharge source. Abbreviations: WA, Washington; OR, Oregon; ft3/s, cubic foot per second; -, not applicable]
| Map index No. | Site No. | Site name | River mile | Annual mean streamflow (ft3/s) | Total nitrogen load (pounds per day, estimated) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Columbia River | Tributaries | Point source | Columbia River | Tributary inflowing | Columbia River | Tributary inflowing | Point source | |||||
| 86 | 12400520 | Columbia River at Northport, WA (reach 1) | 735 | – | – | 106,000 | – | 75,700 | – | – | ||
| 73 | 54A120 | Spokane River at Riverside State Park | 639 | 66 | – | – | 7,020 | – | 21,600 | – | ||
| WA0020281 | Town of Coulee Dam Wastewater Treatment Plant | – | – | 604 | – | .31 | – | – | 24.7 | |||
| 77 | 53A070 | Columbia River at Grand Coulee (reach 2) | 596 | – | – | 113,000 | – | 111,000 | – | – | ||
| WA0021008 | Brewster Wastewater Treatment Plant | – | – | 530 | – | .47 | – | – | 65.6 | |||
| 79 | 49A070 | Okanogan River at Malott | 532 | 2,930 | 2,780 | |||||||
| 78 | 48A070 | Methow River near Pateros | 524 | 5 | 1,440 | 1,100 | ||||||
| 69 | 46A070 | Entiat River near Entiat | 522 | 315 | ||||||||
| 64 | 45A070 | Wenatchee River at Wenatchee | 465 | 1 | 3,370 | 2,780 | ||||||
| WA0023949 | Wenatchee Wastewater Treatment Plant | – | – | 465 | – | 5.12 | – | – | 1,040 | |||
| WA0020621 | East Wenatchee Douglas County Wastewater Treatment Plant | – | – | 464 | – | 2.02 | – | – | 161 | |||
| WA0002976 | K.B. Alloys, Inc. | – | – | 463 | – | .47 | – | – | 21.3 | |||
| WA0000680 | Alcoa, Inc. Wenatchee Works | – | – | 462 | – | 1.70 | – | – | 78.1 | |||
| 51 | 12472900 | Columbia River at Vernita Bridge near Priest Rapids Dam, WA (reach 3) | 388 | – | – | 120,000 | – | 144,000 | – | – | ||
| 49 | 12510500 | Yakima River at Kiona, WA | 335 | 30 | – | – | 3,770 | – | 21,000 | – | ||
| WA0020419 | Richland Wastewater Treatment Plant | – | – | 337 | – | 9.52 | – | – | 936 | |||
| WA0044784 | Kennewick Wastewater Treatment Plant | – | – | 328 | – | 7.90 | – | – | 1,460 | |||
| WA0044962 | Pasco Wastewater Treatment Plant | – | – | 328 | – | 4.18 | – | – | 500 | |||
| WA0003671 | Agrium US, Inc. Bowles Road | – | – | 322 | – | 38.8 | – | – | 918 | |||
| WA0003727 | Agrium US, Inc. Game Farm | – | – | 322 | – | 101 | – | – | 2,390 | |||
| WA0003697 | Boise Cascade Wallula | – | – | 312 | – | 46.7 | – | – | 352 | |||
| 47 | 13353200 | Snake River at Burbank, WA | 324 | 9 | – | – | 46,600 | – | 171,000 | – | ||
| 46 | 32A070 | Walla Walla River near Touchet | 315 | 5 | – | – | 572 | – | 2,430 | – | ||
| 43 | 11489 | Umatilla River at Westland Road (Hermiston) | 289 | 9 | – | – | 545 | – | 3,980 | – | ||
| 26 | 11386 | John Day River at Hwy 206 | 216 | 40 | – | – | 1,770 | – | NA | – | ||
| WA0000540 | Columbia Gorge Aluminum Company | – | – | 208 | – | 5.74 | – | – | 263 | |||
| 39 | 10411 | Deschutes River at Deschutes River Park | 205 | 1 | – | – | 6,450 | – | 10,600 | – | ||
| OR0001708 | Northwest Aluminum Co. | – | – | 190 | – | 10.40 | – | – | 473 | |||
| OR0020885 | City of The Dalles Wastewater Treatment Plant | – | – | 190 | – | 3.88 | – | – | 309 | |||
| WA0022373 | Bingen Wastewater Treatment Plant | – | – | 169 | – | 2.79 | – | – | 223 | |||
| OR0020788 | City of Hood River Wastewater Treatment Plant | – | – | 169 | – | 1.80 | – | – | 143 | |||
| 38 | 14128910 | Columbia River at Warrendale, OR (reach 4) | 143 | – | – | 185,000 | –– | 424,000 | – | – | ||
| WA0037427 | Washougal Wastewater Treatment Plant | – | – | 122 | – | 2.02 | – | – | 161 | |||
| WA0000256 | Fort James Camas L.L.C. | – | – | 121 | – | 47.6 | – | – | 359 | |||
| WA0020249 | City of Camas Wastewater Treatment Plant | – | – | 118 | – | 21.7 | – | – | 1,730 | |||
| OR0000060 | Reynolds Metals Co. | – | – | 119 | – | 4.57 | – | – | 209 | |||
| OR0026131 | City of Gresham Wastewater Treatment Plant | – | – | 118 | – | 18.1 | – | – | 2,890 | |||
| WA0000264 | Boise Cascade Vancouver | – | – | 106 | – | 5.42 | – | – | 40.9 | |||
| OR0026905 | City of Portland Wastewater Treatment Plant | – | – | 106 | – | 109 | – | – | 13,400 | |||
| WA0024350 | Vancouver West Wastewater Treatment Plant | – | – | 105 | – | 19.2 | – | – | 1,730 | |||
| 40 | 10616 | Columbia River at Marker #47 (upstream of Willamette River) (reach 5) | 102 | – | – | 185,000 | – | 455,000 | – | – | ||
| 37 | 10332 | Willamette River at SP&S Railroad Bridge | 101 | 7 | – | – | 35,100 | – | 157,000 | – | ||
| 31 | 10611 | Willamette River at Hawthorne Bridge | 101 | 13 | – | – | 35,100 | – | 152,000 | – | ||
| 33 | 14211720 | Willamette River at Portland, OR | 101 | 13 | – | – | 35,100 | – | 160,000 | – | ||
| WA0000299 | Evergreen Aluminum L.L.C. | – | – | 100 | – | 1.40 | – | – | 63.9 | |||
| WA0023639 | Salmon Creek Wastewater Treatment Plant | – | – | 95 | – | 8.68 | – | – | 734 | |||
| OR0020834 | City of Saint Helens Wastewater Treatment Plant | – | – | 86 | – | 41.5 | – | – | 3,310 | |||
| OR0001635 | Dyno Nobel, Inc. | – | – | 84 | – | .12 | – | – | 2.94 | |||
| WA0000353 | Chemtrade Performance Chemical | – | – | 75 | – | 4.65 | – | – | 47.6 | |||
| WA0000078 | Longview Fibre Longview | – | – | 59 | – | 39.2 | – | – | 296 | |||
| WA0000086 | Chinook Ventures, Inc. Longview | – | – | 58 | – | 5.42 | – | – | 248 | |||
| WA0000124 | Weyerhaeuser Longview | – | – | 58 | – | 24.0 | – | – | 181 | |||
| WA0037311 | Longview Wastewater Treatment Plant | – | – | 56 | – | 7.75 | – | – | 618 | |||
| 44 | 14246900 | Columbia River at Beaver Army Terminal near Quincy, OR | 54 | – | – | 232,000 | – | 572,000 | – | – | ||
| Map index No. | Site No. | Site Name | Total phosphorus load (pounds per day, estimated) | Suspended sediment load (tons per day, estimated) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Columbia River | Tributary inflowing | Point source | Columbia River | Tributary inflowing | Point source | ||||
| 86 | 12400520 | Columbia River at Northport, WA (reach 1) | 3,140 | – | – | 928 | – | – | |
| 73 | 54A120 | Spokane River at Riverside State Park | – | 1,870 | – | – | 201 | – | |
| WA0020281 | Town of Coulee Dam Wastewater Treatment Plant | – | – | 5.83 | – | – | – | ||
| 77 | 53A070 | Columbia River at Grand Coulee (reach 2) | 9,880 | – | – | 393 | – | – | |
| WA0021008 | Brewster Wastewater Treatment Plant | – | – | 8.74 | – | – | – | ||
| 79 | 49A070 | Okanogan River at Malott | – | 659 | – | – | 242 | – | |
| 78 | 48A070 | Methow River near Pateros | – | 166 | – | – | 32.9 | – | |
| 69 | 46A070 | Entiat River near Entiat | – | 74 | – | – | 18.1 | – | |
| 64 | 45A070 | Wenatchee River at Wenatchee | – | 420 | – | – | 127 | – | |
| WA0023949 | Wenatchee Wastewater Treatment Plant | – | – | 96.2 | – | – | – | ||
| WA0020621 | East Wenatchee Douglas County Wastewater Treatment Plant | – | – | 37.9 | – | – | – | ||
| WA0002976 | K.B. Alloys, Inc. | – | – | – | – | – | – | ||
| WA0000680 | Alcoa, Inc. Wenatchee Works | – | – | – | – | – | – | ||
| 51 | 12472900 | Columbia River at Vernita Bridge near Priest Rapids Dam, WA (reach 3) | 8,220 | – | – | 906 | – | – | |
| 49 | 12510500 | Yakima River at Kiona, WA | – | 2,630 | – | – | 468 | – | |
| WA0020419 | Richland Wastewater Treatment Plant | – | – | 179 | – | – | – | ||
| WA0044784 | Kennewick Wastewater Treatment Plant | – | – | 149 | – | – | – | ||
| WA0044962 | Pasco Wastewater Treatment Plant | – | – | 78.7 | – | – | – | ||
| WA0003671 | Agrium US, Inc. Bowles Road | – | – | 37.6 | – | – | – | ||
| WA0003727 | Agrium US, Inc. Game Farm | – | – | 97.7 | – | – | – | ||
| WA0003697 | Boise Cascade Wallula | – | – | 160 | – | – | – | ||
| 47 | 13353200 | Snake River at Burbank, WA | – | 13,300 | – | – | 1,220 | – | |
| 46 | 32A070 | Walla Walla River near Touchet | – | 499 | – | – | 162 | – | |
| 43 | 11489 | Umatilla River at Westland Road (Hermiston) | – | 379 | – | – | 70.2 | – | |
| 26 | 11386 | John Day River at Hwy 206 | – | 808 | – | – | 120 | – | |
| WA0000540 | Columbia Gorge Aluminum Company | – | |||||||
| 39 | 10411 | Deschutes River at Deschutes River Park | – | 3,170 | – | – | 192 | – | |
| OR0001708 | Northwest Aluminum Co. | – | – | – | – | – | – | ||
| OR0020885 | City of The Dalles Wastewater Treatment Plant | – | – | 72.9 | – | – | – | ||
| WA0022373 | Bingen Wastewater Treatment Plant | – | – | 52.5 | – | – | – | ||
| OR0020788 | City of Hood River Waste Water Treatment Plant | – | – | 33.8 | – | – | – | ||
| 38 | 14128910 | Columbia River at Warrendale, OR (reach 4) | 30,400 | – | – | 3,560 | – | – | |
| WA0037427 | Washougal Wastewater Treatment Plant | – | – | 37.9 | – | – | – | ||
| WA0000256 | Fort James Camas L.L.C. | – | – | 163 | – | – | – | ||
| WA0020249 | City of Camas Wastewater Treatment Plant | – | – | 408 | – | – | – | ||
| OR0000060 | Reynolds Metals Co. | – | – | – | – | – | – | ||
| OR0026131 | City of Gresham Wastewater Treatment Plant | – | – | 184 | – | – | – | ||
| WA0000264 | Boise Cascade Vancouver | – | – | 18.6 | – | – | – | ||
| OR0026905 | City of Portland Wastewater Treatment Plant | – | – | 1,590 | – | – | – | ||
| WA0024350 | Vancouver West Wastewater Treatment Plant | – | – | 361 | – | – | – | ||
| 40 | 10616 | Columbia River at Marker #47 (upstream of Willamette River) (reach 5) | 43,800 | – | – | 4,800 | – | – | |
| 37 | 10332 | Willamette River at SP&S Railroad Bridge | – | 18,100 | – | – | 1,440 | – | |
| 31 | 10611 | Willamette River at Hawthorne Bridge | – | 16,500 | – | – | 1,340 | – | |
| 33 | 14211720 | Willamette River at Portland, OR | – | 16,300 | – | – | 2,780 | – | |
| WA0000299 | Evergreen Aluminum L.L.C. | – | – | – | – | – | – | ||
| WA0023639 | Salmon Creek Wastewater Treatment Plant | – | – | 163 | – | – | – | ||
| OR0020834 | City of Saint Helens Wastewater Treatment Plant | – | – | 781 | – | – | – | ||
| OR0001635 | Dyno Nobel, Inc. | – | – | – | – | – | – | ||
| WA0000353 | Chemtrade Performance Chemical | – | – | 5.26 | – | – | – | ||
| WA0000078 | Longview Fibre Longview | – | – | 135 | – | – | – | ||
| WA0000086 | Chinook Ventures, Inc. Longview | – | – | – | – | – | – | ||
| WA0000124 | Weyerhaeuser Longview | – | – | 82.4 | – | – | – | ||
| WA0037311 | Longview Wastewater Treatment Plant | – | – | 146 | – | – | – | ||
| 44 | 14246900 | Columbia River at Beaver Army Terminal near Quincy, OR | 54,600 | – | – | 14,600 | – | – | |
U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/sir/2007/5186
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Page Last Modified: Thursday, 01-Dec-2016 19:52:54 EST
