WSP11769

• File Number: 8510.100.60
• Description: Rio Grande Compact Commission
• Basin: Rio Grande
• Water Division: 3
• Date: 1/1/1980
• Title: Report of the Rio Grande Compact Commission 1980
• Water Supply Pro - Doc Type: Report/Study

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RIO GRANDE COMPACT

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Rio Grande above Lobatos. Within the physical limitations
of Etorage capacity in such reservoirs, Colorado shall
retain water in storage at all times to the extent of its
accrued debit.

In the case of New Mexico, the accrued debit shall not
exceed 200,000 acre feet at any time, except as such debit
may be caused by holdover storage of water in reservoirs
constructed after 1929 in the drainage basin of the Rio
Grande between Lobatos and San Marcial. Within the physical
limitations of storage capacity in such reservoirs, New
Mexico shall retain water in storage at all times to the
extent of its accrued debit. In computing the magnitude of
accrued credits or debits, New Mexico shall not be charged
with any greater debit in anyone year than the sum of
150,000 acre-feet and all gains in 'the quantity of water in
storage in such year.

The Commission by unanimous action may authorize the
release from storage of any amount of water which is then
being held in storage by reason of accrued debits of
Colorado or New Mexico; provided, that such water shall be
replaced at the first opportunity thereafter.

In computing the amount of accrued credits and accrued
debits of Colorado or New Mexico, any annual credits in
excess of 150,000 acre feet shall be taken as equal to that
amount.

In any year in which actual spill occurs, the accrued
credits of Colorado, or New Mexico, or both, at the begin-
ning of the year shall be reduced in proportion to their
respective credits by the amount of such actual spill;
provided, that the amount of actual spill shall be deemed
to be increased by the aggregate gain in the amount of water
in storage, prior to the time of spill, in reservoirs above
San Marcial constructed after 1929; provided, further, that
if the Commissioners for the States having accrued credits
authorize the release of part, or all, of such credits in
advance of spill, the amount so released shall be deemed to
constitute actual spill.

In any year in which there is actual spill of usable
water, or at the time of hypothetical spill thereof, all
accrued debits of Colorado, or New Mexico, or both, at the
beginning of the year shall be cancelled.

In any year in which the aggregate of accrued debits
of Colorado and New Mexico exceeds the minimum unfilled
capacity of project storage, such debits shall be reduced
proportionally to an aggregate amount equal to such minimum
unfilled capacity.

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