Scientific Investigations Report 2006–5060

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5060

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Table 1. Scenarios showing water delivery level, dam height, outlet type, and supplemental inflow strategy for Hagg Lake, Oregon, 2001-02.

[Scenarios with two outlets of any type or one variable-elevation outlet have selective-withdrawal capability]

Scenario Water deliveries Dam raise(feet) Outlets Sain Creek Tunnel inflow rate Tualatin River pump-back
Existing fixed-elevation Additional fixed-elevation Variable-elevation
2002
0 Base Measured 0 ×
1 a Initial 20 ×
b Maximum 20 ×
2 a Initial 20 × ×
b Maximum 20 × ×
3 a Initial 20 × ×
b Maximum 20 × ×
4 a Initial 20 ×
b Maximum 20 ×
5 a Initial 40 ×
b Maximum 40 ×
6 a Initial 40 × ×
b Maximum 40 × ×
7 a Initial 40 × ×
b Maximum 40 × ×
8 a Initial 40 ×
b Maximum 40 ×
9 a Initial 40 × Low
b Maximum 40 × Low
10 a Initial 40 × High
b Maximum 40 × High
11 a Initial 40 × × High
b Maximum 40 × × High
12 a Initial 40 × × High
b Maximum 40 × × High
13 a Initial 40 × High
b Maximum 40 × High
14 a Initial 40 × × ×
b Maximum 40 × × ×
15 a Initial 25 × × ×
b Maximum 25 × × ×
2001
0 Base Measured 0 ×
14 a Initial 40 × × ×
b Maximum 40 × × ×
15 a Initial 25 × × ×
b Maximum 25 × × ×

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For more information about USGS activities in Oregon, visit the USGS Oregon Water Science Center home page.

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