Scientific Investigations Report 2007–5186
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5186
Table 12. Annual mean discharges of total nitrogen, total phosphorus, and suspended sediment loads in the Snake River, monitored Snake River tributaries, and point sources discharging directly to the Snake River, Wyoming, Idaho, and Washington, water year 2000.
[Bold type indicates start of reach (see figure 20); shaded rows indicate monitoring site (see table 1); italicized type indicates point-source discharge source. Abbreviations: ID, Idaho; WA, Washington; WY, Wyoming; ft3/s, cubic foot per second; –, not applicable]
| Map index No. | Site No. | Site name | River mile location | Annual mean streamflow (ft3/s) |
Total nitrogen (pounds per day, estimated) |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snake River | Tribu-taries | Point source | Snake River | Tributary inflowing | Snake River | Tributary inflowing | Point source | |||||
| 100 | 13010065 | Snake River at Flagg Ranch, WY (reach 1) | 1,050 | – | – | 839 | – | 1,130 | – | – | ||
| ID0021261 | Idaho Falls, City of | – | – | 798 | – | 15.20 | – | – | 265 | |||
| ID0020044 | Blackfoot, City of | – | – | 764 | – | 1.71 | – | – | 221 | |||
| ID0020095 | Burley, City of | – | – | 652 | – | 2.02 | – | – | 143 | |||
| ID0021270 | Twin Falls, City of | – | – | 608 | – | 11.9 | – | – | 1,670 | |||
| ID0020168 | Jerome, City of | – | – | 608 | – | 2.17 | – | – | 305 | |||
| 89 | 13092747 | Rock Creek above Hwy 30/93 crossing at Twin Falls, ID | – | 606 | – | – | 115 | – | 1,370 | – | ||
| 90 | 13094000 | Snake River near Buhl, ID (reach 2) | 597 | – | – | 4,660 | – | 42,300 | – | – | ||
| 91 | 13154500 | Snake River at King Hill, ID (reach 3) | 546 | – | – | 9,990 | – | 82,200 | – | – | ||
| 93 | 13206000 | Boise River at Glenwood, ID | – | 392 | – | – | 865 | – | 2,040 | – | ||
| OR0020621 | Ontario, City of | – | – | 372 | – | 3.04 | – | – | 123 | |||
| ID0020290 | Weiser, City of | – | – | 352 | – | 2.79 | – | – | 223 | |||
| 47 | 13353200 | Snake River at Burbank, WA (reach 4) | 9 | – | – | 46,600 | – | 171,000 | – | – | ||
| ID0001163 | Potlatch Corp. | – | – | 39 | – | 57.2 | – | – | 431 | |||
| WA0021113 | Clarkston Wastewater Treatment Plant | – | – | 38 | – | 4.03 | – | – | 322 | |||
| Map index No. | Site No. | Site name | Total phosphorus (pounds per day, estimated) |
Suspended sediment (tons per day, estimated) |
Snake River | Tributary inflowing | Point source | Snake River | Tributary inflowing | Point source |
|---|---|---|---|---|---|---|---|---|---|
| 100 | 13010065 | Snake River At Flagg Ranch, WY (reach 1) | 266 | – | – | 137 | – | – | |
| ID0021261 | Idaho Falls, City of | – | – | 90.0 | – | – | – | ||
| ID0020044 | Blackfoot, City of | – | – | 35.5 | – | – | – | ||
| ID0020095 | Burley, City of | – | – | 83.1 | – | – | – | ||
| ID0021270 | Twin Falls, City of | – | – | 727 | – | – | – | ||
| ID0020168 | Jerome, City of | – | – | 229 | – | – | – | ||
| 89 | 13092747 | Rock Creek above Hwy 30/93 crossing at Twin Falls, ID | – | 55.1 | – | – | 17.6 | – | |
| 90 | 13094000 | Snake River near Buhl, ID (reach 2) | 2,690 | – | – | 362 | – | – | |
| 91 | 13154500 | Snake River at King Hill, ID (reach 3) | 3,710 | – | – | 354 | – | – | |
| 93 | 13206000 | Boise River at Glenwood, ID | – | 458 | – | – | 22.1 | – | |
| OR0020621 | Ontario, City of | – | – | 51.4 | – | – | – | ||
| ID0020290 | Weiser, City of | – | – | 60.9 | – | – | – | ||
| 47 | 13353200 | Snake River at Burbank, WA (reach 4) | 13,300 | – | – | 1,220 | – | – | |
| ID0001163 | Potlatch Corp. | – | – | 231 | – | – | – | ||
| WA0021113 | Clarkston Wastewater Treatment Plant | – | – | 75.8 | – | – | – | ||
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