Scientific Investigations Report 2006–5106

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5106

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Table 12. Monthly dissolved inorganic nitrogen load from the 26 river and 24 shoreline basins, and total annual dissolved inorganic nitrogen loads from streams and ground water, Hood Canal drainage basin, western Washington., 1971-2002.

[Locations of subbasins are shown in figure 2. Hydroclimatic region: Monthly distribution over the annual cycle: 1, lowland streams; 2, North Olympic rivers; 3, Skokomish. Empirical regression parameters from equation 4. Abbreviations: N, nitrogen; DIN, dissolved inorganic nitrogen; m3/s, cubic meter per second; kg, kilogram; MT/yr, metric ton per year]

River and shoreline subbasins Mean streamflow for entire basin for 1971-2002 (m3/s) Hydro-climatic region Empirical regression parameters   Dissolved inorganic nitrogen load (kg)   DIN load (MT/yr)
m B Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. Stream Ground
water
Skokomish River
Skokomish1 36.13 3 0.11 0.16 8,790 15,700 23,200 18,800 15,100 12,100 10,100 7,740 6,280 4,660 4,110 4,900 131.4 0.0
Other Olympic Rivers
Duckabush 13.69 2 0.05 0.11 1,000 2,040 2,350 2,040 1,950 1,960 1,860 2,600 2,420 1,520 631 389 20.8 0.0
Dosewallips 17.49 2 .08 .62 1,750 5,010 6,100 4,940 4,850 4,660 4,410 7,060 6,450 3,220 889 445 49.8 .0
Hamma Hamma 16.36 2 .10 .23 2,360 5,210 6,090 5,190 4,990 4,960 4,720 6,810 6,310 3,750 1,410 826 52.6 .0
Little Quilcene 2.23 1 .11 .16 259 869 1,520 1,690 1,530 993 568 345 217 155 118 114 8.4 .5
Big Quilcene 5.29 2 .10 .16 772 1,630 1,890 1,630 1,560 1,560 1,484 2,100 1,950 1,190 474 286 16.5 19.5
North Olympic lowlands
Thorndyke 0.69 1 0.11 0.16 79.7 268 467 520 471 306 175 106 66.8 47.7 36.3 35.1 2.6 0.0
Tarboo .64 1 .11 .16 74.6 251 437 487 441 287 164 99.5 62.6 44.7 34.0 32.9 2.4 .0
Spencer .15 1 .11 .16 17.9 60.0 105 117 106 68.6 39.3 23.8 15.0 10.7 8.1 7.9 .6 2.5
Shore 1 .45 1 .11 .16 52.8 177 310 344 312 203 116 70.4 44.3 31.6 24.1 23.2 1.7 8.1
Shore 19 .07 1 .11 .16 7.8 26.3 45.8 51.0 46.2 30.0 17.2 10.4 6.6 4.7 3.6 3.4 .3 3.1
Shore 20 .12 1 .11 .16 13.7 46.0 80.3 89.4 81.0 52.6 30.1 18.3 11.5 8.2 6.2 6.0 .4 5.5
Shore 21 .24 1 .11 .16 27.7 93.0 162 181 164 106 60.8 36.9 23.2 16.6 12.6 12.2 .9 6.7
Shore 22 .44 1 .11 .16 51.7 174 303 337 305 198 114 68.9 43.3 30.9 23.5 22.8 1.7 8.1
Shore 23 .26 1 .11 .16 30.6 103 179 200 181 118 67.2 40.8 25.7 18.3 13.9 13.5 1.0 1.2
Jackson .01 1 .11 .16 11.1 37.3 65.2 72.6 65.7 42.7 24.4 14.8 9.3 6.7 5.1 4.9 .4 2.1
South Olympic, South-Shore, Kitsap lowlands
Union 1.89 1 0.38 0.25 693 2,560 4,640 5,210 4,720 2,940 1,620 944 575 399 298 287 24.9 5.7
Mission .98 1 .11 .16 113 380 663 738 66 434 249 151 94.9 67.7 51.6 49.8 3.7 3.7
Tahuya 4.01 1 .14 .16 562 1,880 3,270 3,640 3,300 2,150 1,230 748 471 337 257 248 18.1 5.9
Dewatto 2.38 1 .13 .16 319 1,070 1,860 2,070 1,870 1,220 698 424 268 191 146 141 10.3 .0
Big Beef 1.12 1 .11 .16 130 435 759 844 765 497 284 173 109 77.5 59.0 57.0 4.2 .0
Anderson 1 .45 1 .11 .16 52.3 176 306 341 309 201 115 69.7 43.9 31.3 23.8 23.0 1.7 .0
Anderson 2 .59 1 .11 .16 69.0 232 404 450 408 265 152 92.0 57.9 41.3 31.4 30.4 2.2 .0
Eagle .77 1 .11 .16 89.8 302 526 586 531 345 197 120 75.3 53.7 40.9 39.5 2.9 2.6
Finch .31 1 .14 .20 41.3 144 256 286 259 165 93 55.5 34.5 24.3 18.3 17.7 1.4 2.2
Fulton .87 1 .11 .16 101 340 594 661 599 389 222 135 85.0 60.6 46.2 44.6 3.3 1.2
Jorsted .45 1 .11 .16 51.9 174 304 339 307 199 114 69.2 43.6 31.1 23.7 22.9 1.7 2.1
Lilliwaup 1.74 1 .11 .16 201 677 1,180 1,320 1,190 774 443 269 169 121 91.9 88.8 6.5 9.5
Rendsland 0.90 1 0.11 0.16 105 351 613 682 618 402 230 139 87.7 62.6 47.7 46.1 3.4 0.0
Seabeck .53 1 .11 .16 61.6 207 361 402 364 236 135 82.1 51.7 36.9 28.1 27.1 2.0 .0
Stavis .99 1 .11 .16 114 385 671 747 676 440 252 153 96.0 68.5 52.2 50.4 3.7 .0
Waketickeh .76 1 .11 .16 88.7 298 520 579 524 341 195 118 74.4 53.1 40.4 39.1 2.9 2.0
Shore 2 .15 1 .11 .16 17.1 57.4 100 112 101 65.6 37.6 22.8 14.3 10.2 7.8 7.5 .6 .3
Shore 3 .41 1 .11 .16 47.2 158 276 308 279 181 104 62.9 39.6 28.2 21.5 20.8 1.5 .6
Shore 4 .31 1 .11 .16 35.8 120 210 234 212 138 78.6 47.7 30.0 21.4 16.3 15.8 1.2 .7
Shore 5 .22 1 .11 .16 25.7 86.4 151 168 152 98.7 56.5 34.3 21.6 15.4 11.7 11.3 .8 1.7
Shore 6 .23 1 .11 .16 27.1 91.1 159 177 160 104 59.6 36.2 22.8 16.2 12.4 11.9 .9 2.4
Shore 7 .67 1 .11 .16 77.8 261 456 508 460 299 171 104 65.2 46.5 35.4 34.2 2.5 5.4
Shore 8 .06 1 .11 .16 6.7 22.4 39.0 43.5 39.4 25.6 14.6 8.9 5.6 4.0 3.0 2.9 .2 .4
Shore 9 1.26 1 .11 .16 146.1 490 856 953 863 561 321 195 122 87.4 66.6 64.3 4.7 10.4
Shore 10 223.8 1 .11 .16 2,770 9,290 16,200 18,000 16,300 10,600 6,080 3,690 2,320 1,660 1,260 1,220 389.5 9.6
Shore 11 .52 1 .11 .16 60.2 202 353 393 356 231 132 80.3 50.5 36.0 27.4 26.5 1.9 7.9
Shore 12 .07 1 .11 .16 8.6 28.8 50.3 56.0 50.7 32.9 18.8 11.4 7.2 5.1 3.9 3.8 .3 .8
Shore 13 .11 1 .11 .16 12.8 42.9 74.8 83.3 75.4 49.0 28.0 17.0 10.7 7.6 5.8 5.6 .4 .8
Shore 14 .04 1 .11 .16 4.7 15.7 27.3 30.4 27.6 17.9 10.2 6.2 3.9 2.8 2.1 2.1 .2 .3
Shore 15 .02 1 .11 .16 2.7 9.1 15.8 17.6 16.0 10.4 5.9 3.6 2.3 1.6 1.2 1.2 .1 .2
Shore 16 .45 1 .11 .16 52.9 178 310 345 312 203 116 70.5 44.4 31.7 24.1 23.3 1.7 3.7
Shore 17 .18 1 .11 .16 21.4 71.9 125 140 126 82.2 47.0 28.5 18.0 12.8 9.8 9.4 .7 1.0
Shore 18 .29 1 .11 .16 33.3 112 195 218 197 128 73.2 44.4 28.0 19.9 15.2 14.7 1.1 .2
Shore 24 .06 1 .11 .16 6.9 23.3 40.6 45.3 41.0 26.6 15.2 9.2 5.8 4.2 3.2 3.1 .2 .0
Total 142                                   493 138

1Streamflow was scaled for the 1971-2002 as described in “Estimates of Streamflow” in section “Annual Freshwater and Saline Loads in Dissolved Inorganic Nitrogen to Hood Canal, 1971-2002.”

2 Streamflow includes 0.636 m3/s from shore 10 and 23.2 m3/s from Lake Cushman Diversion.

3Stream nitrogen loadings includes 0.5 MT/yr from shore 10 plus 89.0 MT/yr from Lake Cushman Diversion.

4Total is slightly different than the sum due to rounding.

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