WSP05143

• File Number: 8510.100.60
• Description: Rio Grande Compact Commission
• Basin: Rio Grande
• Water Division: 3
• Date: 1/1/1994
• Title: Report of the Rio Grande Compact Commission 1994
• Water Supply Pro - Doc Type: Report/Study

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RIO GRANDE COMPACT

3

r:.:' (I) "Usable Water" is all water, exclusive of credit water, which is in project storage
. I'l!lnd which is available for release in accordance with irrigation demands, including deliveries
to Mexico.

(m) 'Credit Water" is that amount of water in project storage which is equal to the
accrued credit of Colorado, or New Mexico, or both.

(n) . 'Unfilled Capacity" is the difference between the total phYSical capacity of
project storage and the amount of Usable water then in storage.

(0) 'Actual Release" is the amount of usable water released in any calendar year
from the lowest reservoir comprising project storage.

(p) "Actual Spill" is all water which is actually spilled from Elephant Butte Reservoir.
or is released therefrom for flood control, in excess of the current demand on project storage
and which does not become Usable water by storage in another reservoir; provided, that
actual spill of usable water cannot occur until all credit water shall have been spilled.

(q)"Hypothetical Spill" is the time in any year at which Usable water would have
spilled from project storage if 790,000 acre feet had been released therefrom at rates pro-
portional to the actual release in every year from the starting date to the end of the year in
which hypothetical spill Occurs; in computing hypothetical spill the initial condition shall be
the amount of usable water in project storage at the beginning of the calendar year follOWing
the effective date of this Compact, and thereafter the initial condition shall be the amount of
usable water in project storage at the beginning of the calendar year follOWing each actual
spill.

ARTICLE 1/

The Commission shall cause to be maintained and operated a stream gaging sta-
tion equipped with an automatic water stage recorder at each of the following points, to-wit:

(a) On the Rio Grande near Del Norte above the principal points of diversion to the
San luis Valley;

(b) On the Conejos River near Mogote;

(c) On the los Pinos River near Ortiz;

(d) On the San Antonio River at Ortiz;

(e) On the Conejos River at its mouths near los Sauces;

(I) On the Rio Grande near lobatos;

(g) On the Rio Chama below EI Vado Reservoir;

(h) On the Rio Grande at Otowi Bridge near San IIdefonso;

(i) On the Rio Grande near San Acacia;

(j) On the Rio Grande at San Marcial;

(k) On the Rio Grande below Elephant Bulle Reservoir;

(I) On the Rio Grande below Caballo Reservoir.

Similar gaging stations shall be maintained and operated below any other reservoir
constructed after 1929, and at such other points as may be necessary for the securing of
records required for the carrying out of the Compact; and automatic water stage recorders
shall be maintained and operated on each of the reservoirs mentioned, and on all others
:onstructed after 1929.

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