Volume III: Apendices B-T Of the Biological Opinion

• Description: related to the Platte River Endangered Species Partnership ‎(aka Platte River Recovery Implementation Program or PRRIP)‎
• State: NE
• Basin: North Platte
• Date: 7/1/1997
• Author: U.S. Fish and Wildlife Service, Grand Island, Nebraska
• Title: Volume III: Appendices B - T of the Biological Opinion ‎(BO)‎ on the Federal Engergy Regulatory Commission's ‎(FERC)‎ Preferred Alternative for the Kinglsey Dam Project ‎(No. 1417)‎ and the Northe Platte/Keystone Dam Project ‎(No 1835)‎ ‎(PROJECT NO. 1835)‎
• Water Supply Pro - Doc Type: Biological Opinion

TABLE 1
WATER CONSERVATION MEASURE UNIT COST ESTIMATES
Measure
Installation
Cost
(I)
Replacement
Cost
(R)
Combined
I &R Cost
Savings
(af /yr)
I &R Unit
Cost
($ /af /yr)
O &M Cost
($ /af /yr)
Canal Lining
459,400
0
459,000
2,000
230
0
Groundwater
62,300
124,600
186,900
12,000
16
7
Scheduling
1 60,000
180,000
240,000
5,775
42
14
All cost estimates are in constant dollars and are not adjusted for inflation.
The economic evaluation performed considers various implementation scenarios comprised of
combinations of one or more of these measures. The evaluation is based on the proposed
water conservation implementation schedule included in Appendix E (Table E -3, page E -5) of
the 1995 BA.
The water conservation implementation schedule summarized in the 1995 BA Appendix
identifies dollar amounts for water conservation implementation for each year of the 40 year
license period. Based on this schedule, planning activities would occur during the first three
years, and actual implementation would not begin until the fourth year. The schedule specifies
$500,000 would be spent annually during years 4 -15, and $175,000 would be spent annually
for the remaining years 16-40. For the purpose of this discussion, it is assumed these amounts
include the cost of initial installation, replacement, and annual operation and maintenance costs
associated with implementation of water conservation measures.
Implementation Scenarios
Four scenarios have been identified which include one or more of the above measures. The
scenarios have been developed and evaluated within the constraints of the implementation
schedule of the 1996 BA Appendix. The primary constraint associated with the schedule is
that total operation'and maintenance costs are limited at $175,000 (at 1996 cost) beyond year
15.
The scenarios include canal lining only, canal lining and groundwater pumping, and two
scenarios which include canal lining, groundwater pumping, and scheduling modifications.
One of the two latter scenarios include scheduling modifications for only the first ten years,
and the second with scheduling modifications for the full 40 years. Estimated annual diversion
reductions at 40 year full development under each of these scenarios are summarized in Table
2 below.
r
1
r
n
n