WSP04972

• File Number: 8509
• Description: San Luis Valley
• State: CO
• Basin: Rio Grande
• Water Division: 3
• Date: 9/26/1974
• Title: Garcia Water Problems
• Water Supply Pro - Doc Type: Report/Study

ATTACHMENT 3

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Deliveries of Direct flow Waler to Colorado During Irrigation Season

Usable Discharge
of Creek at
. Canyon Mouth
Caging Station
(C.F.S.)
(1)
25.00

Incremental Cumulative
Allocations Points of Allocations
'to Colorado Interstate to Colorado
(U.S.) Delivery (CF.S.)
(2A) (28) (3) (4)
1.05 Acequia Madre
2..53 Cerro Canal
4.70 Cerra Canal 8.28

36.88

Cerra Canal

.38

38.62

4.04 Cerra Canal 12.70
1.00 Creek 13.70
2.24 Cerro Canal 15.94
6.00 Creek 21.94
. .13 Cerra Canal 22.07
1.00 Creek 23.07

44.76

50.91

56.48

61.48

64.22

139070

27.55

Cerra Canal

50.62

Remarks

(5)
Incremental allocation is 4.2% of the usable discharge when
usable discharge is less than 25.00 C.f.S.
Incremental allocation is 10.13% of the usable discharge
when usable discharge is less than 25.00 C.F.S.
This 4.70 C.F.S. is not a part of the Colorado allocation
of the direct flow water of the Costilla Reservoir System
and is not subject to adjustment in the event of a change
in the usable capacity of Costilla Reservoir. Incremental al.
location is 18.8% of the usable. discharge when usable dis-
charge is less than 25.00 CF.S." This 4.70 CF.S. allocated
tet Colorado for delivery through .the Cerro Canal is 5.50
C.F.S. of the original 6.55 CF.S. allocated to Colorado
for delivery through the Acequia Madre less 0.8 CF.S. cor-
rection for losses.
This 0.38 C.F .5. is not a part of the Colorado allocation of
the direct flow water of the Costilla Reservoir System and
is not subject to adjustment in the event of a change in
the usable capacity of Costilla Reservoir. Incremental al-
location is 3.26% of the usable discharge in excess of 25.38
CF.S. and less than 36.88 CF.S.
Incremental allocation is 35.11% of the usable discharge in
excess of 25.38 CF.5. and less than 36.88 CF.S.
Incremental allocation is 100%, of the usable discharge in
excess of 37.62 CF.S. and less than 38.62 CF.5.
Incremental allocation is 36.5% of the usable discharge in~
excess of 38.62 CF.5. and less than 44.76 CF.S.
Incremental allocation is 100% of the usable discharge in
excess of 44.91 CF.S. and less than 50.91 C.F.S.
Incremental allocalion is 11.18% of the usable discharge in
excess of 55.35 CF.5. and less than 56.48 CF.S.
Incremental allocation is 100% of the usable discharge in
excess of 60.48 CF.S. and Jess than 61.48 CF.S.
At usable creek discharge of 64.22 C.F.S. the Cerra Canal
direct flow permit becomes operative after 1,000 acre.feet
has been stored in Eastdale Reservoir No.1.
Incremental allocation is 36.5% of -the usable discharge in
excess of 64.22 C.F.S. and less than 139.70 C.F.S.

The actual dilicharges of CosHIla Creek al the Canyon Mouth gaging station at which the various blocks of direct flow water become effective shall
equal the (lows liel forlh in column (1) increased by the transmission losses nece~sary to deliver those flows to the head gates of the respective direct flow
ditches diverting in New f\1{'xico.
The delivery of ditch Woller at the boundary shall equal lhe allocation set forth in columns< <2AI and (28) reduced by the transmi~<;ion losses be.
tween the hNdgate of the ditch and the point where the dilch crosses the boundary. The allocations to be delivered to Colorado through the Cerro
Canal represent, except as otherwise indicated in column IS) of the table above, 36.5 per cent of those block!> of direct flow water of the Costilla Re!>ervoir
S~tem which arc subjecI 10 adiu~tment as provided in subsection (e) 01 lh\s Article.
The provisions of Article III (1) (al shall not be .lpplicable to the Colorado allocation of 5.08 C.F.S. which is transferred from the Acequia Madre 10
the Cerro Canal by this amendment to the Coslilla Creek Compact and shall nOI be applicable to the 0.8 C.F.S. which is transferred from Colorado to New
Mexico by this amendment to lhe Costilla Creek Compact.
The above lable is compiled on lhe basi!> of the delivery to Colorado at the bound-lry of lhirty-six and five~tenths per cent (36.5%) of all direct
flow waler of the Costilla Reservoir System dIverted by Ihe Cerro Canal and thE' delivery at the boundary of all other direct flow water allocated to Colo-
rado. in the order of priority, all such deliveries to be adjusted for transmission losses. In the event of change in the usuable Glpacily of the Costilla
Reservoir, Colorado's share of all direct flow water oj the Costilla Reservoir System diverted by the Cerro Canal, 10 be delivered at the bound.ry and ad-
justed for transmission losses. shall be determined by the percentage!> set forth in column (4) of the lable which appe.us in subsection (e) of this Article.