Scientific Investigations Report 2006-5111
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006-5111
Table 4. Median, minimum, and maximum values of instantaneous water-quality measurements and select constituent concentrations from sites on the lower Boise River, southwestern Idaho, 1994–2002.
[Derived from MacCoy (2004). Subbasins shown in figure 1. Abbreviations: USGS, U.S. Geological Survey; ºC, degrees Celsius; mg/L, milligram per liter; μS/cm, microsiemen per centimeter; Min., minimum, Max., maximum]
| Water-quality sampling site | USGS station No. | Subbasins | Temperature(ºC) | Dissolved oxygen (mg/L) | pH (standard units) | Specific conductance (μS/cm) | Suspended sediment (mg/L) | Total nitrogen (mg/L as N) | Total phosphorus (mg/L as P) |
|---|---|---|---|---|---|---|---|---|---|
| Median (Min.-Max.) |
Median (Min.-Max.) |
Median (Min.-Max.) |
Median (Min.-Max.) |
Median (Min.-Max.) |
Median (Min.-Max.) |
Median (Min.-Max.) |
|||
| Diversion | 13203510 | Upstream of Eagle Island Basin |
9.2 | 11.6 | 7.6 | 75 | 4 | 0.26 | 0.04 |
| (1.6 - 18.8) | (9.1 - 14.6) | (6.6 - 8.5) | (51 - 107) | (1 - 38) | (0.15 - 0.51) | (0.01 - 0.09) | |||
| Glenwood | 13206000 | Upstream of Eagle Road Basin |
11.5 | 11.4 | 8.0 | 90 | 5 | 0.45 | 0.09 |
| (2.8 - 23.0) | (8.4 - 15.8) | (7.8 - 8.9) | (52 - 197) | (1 - 107) | (0.18 - 1.90) | (0.02 - 0.38) | |||
| Middleton | 13210050 | Upstream of Middleton Basin |
12 | 11.7 | 8.0 | 136 | 6 | 0.89 | 0.15 |
| (2.7 - 22.5) | (8.8 - 15.7) | (6.7 - 9.1) | (74 - 314) | (2 - 211) | (0.38 - 3.51) | (0.03 - 0.85) | |||
| Parma | 13213000 | Upstream of Boise River Mouth Basin |
12.1 | 10.2 | 8.0 | 343 | 45 | 2.17 | 0.3 |
| (3.4 - 31.5) | (6.7 - 16.2) | (7.3 - 8.9) | (128 - 585) | (8 - 245) | (0.62 - 5.33) | (0.08 - 0.55) |
U.S.
Department of the Interior | U.S. Geological
Survey
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