The Platte River Project

• Description: Comments of the Platte River Project on the Platte River Program Draft EIS
• State: CO
• State: NE
• State: WY
• Basin: South Platte
• Water Division: 1
• Date: 9/20/2004
• Author: Platte River EIS Office ‎(PL -100)‎
• Title: Comments of the Platte River Project on the Platte River Program Draft EIS
• Water Supply Pro - Doc Type: EIS

Northern Central Southern Accretive or (Depletive)
Region Region Region Effect
New
ransbasin Imports
40%
30%
20%
64%
Nonti
'butary Groundwater
0%
10%
50%
68%
Ag. to
Urban Conversion
35%
5%
0%
10%
Cons
rvation
5%
15%
10%
0%
Wast
water
10%
25%
10%
(41%)
Exch
nge /Reuse
NatiN
e South Platte Flows
10%
15%
10%
(27 %)
The GoN ernance Committee has adopted assumptions concerning the monthly distribution of the
accretiv /depletive effect of the development of each source of supply, taking into consideration
the accr tive /depletive effect shown above, the weighted contribution to meeting total water
demand, and the anticipated monthly return flow pattern based on municipal water use patterns.
The asslmptions shown herein or as may be modified by the Governance Committee shall be as
measurep at or near the point of use.
C. Trari git Loss Assumptions. Colorado's commitment to offset the cumulative
accretiv /depletive effect of new water related activities in the three regions (hereinafter referred
to as "Ci imulative Effect ") will be as measured at or reasonably near the Colorado- Nebraska state
line. Thd Cumulative Effect will be influenced by natural river gains and losses, and water uses
and retu flows downstream from the points of use. As amended by the Governance Committee
based ul on the results of the "Tracking/Accounting Procedure for Determining
Depleti Accretion Impacts for the Three Program Water Projects and New Water Related
Activiti s, Including Water Conservation/Supply Projects," for the purposes of routing both
accretio s and depletions from the Kersey gauge to a point at or reasonably near the Colorado -
Nebras state line, the Program will assume the following monthly transit loss factors apply on
a per -m' a basis:
jan b mar apr may jun jul aug sep oct nov dec
.02% 1(012% .05% .1% .3% .45% .5% .5% .5% .4% .1% .02%
D. Re rtin Periods. The Initial Reporting Period will be two years from the initiation of a
Progra . Subsequent Reporting Periods will be each five years thereafter, for so long as the
Progra is in effect. At the close of each reporting period, Colorado will report:
any adjustments in the projected Population Increase for the past reporting period;
any new information relevant to the continued use or modification of assumptions set
-th herein for:
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