WSP03469

• File Number: 8220.200.05.P
• Description: Hoover Dam/Lake Mead/Boulder Canyon Project
• Basin: Colorado Mainstem
• Date: 5/10/1979
• Author: USACOE
• Title: Transcript of a Public Hearing for Re-evaluation of A Flood Control Operation Plan for Hoover Dam: Los Angeles CA
• Water Supply Pro - Doc Type: Report/Study

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feet per second, which is the hydraulic capacity of the

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generating units, would permit the evacuation of 1.25 million

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acre-feet of flood control storage space in a 90-day period

4 without any increase in downstream damages. This would permit

5 the required January 1st storage space to be decreased by this

6 amount while providing the same flood control space by Aprir 1

7 for the regulation of spring snowmelt floods, that is when run

B off forecasts indicate the need for such space.

9 The power benefits that would result from increasin

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the conservation storage in Lake Mead could be considerable,

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11 also in addition to the water conservation level. The cost

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of energy that might be obtained by Metropolitan fram alterna-

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13 tile sources would be about 40 mills per kilowatt-hour, This i

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14 in contrast to the 20 mills per kilowatt-hour that was used in

15 the brochure and again, I'd like to emphasize these are cost

16 to the Metropolitan Water District we are evaluating here.

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17 Based on this alternative cost, the 1.25 million

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18 acre-feet of storage mentioned above, that is the amount that

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19 we could evacuate between January and the 1st of ~pril, this

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20 energy, which would be worth $25 million if it could be passed

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21 through the turbines and generate energy rather than being

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22 spilled at this 40 mills per kilowatt hour rate,

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And the way that this would be realized is if the

24 water could be passed through the turbines rather than just be

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25 passed over the spill, which would produce 625 million kilowat -