‘‘(d)(1) For purposes of implementing in a year of 
prospective shortage the water allocation procedures es-
tablished by subsection (a), the Secretary of the Interior 
shall determine the quantity of any shortages and the ap-
propriate apportionment of water using the normal diver-
sion requirements on the flow of the San Juan River origi-
nating above Navajo Dam based on the following criteria: 
‘‘(A) The quantity of diversion or water delivery 
for the current year anticipated to be necessary to 
irrigate land in accordance with cropping plans pre-
pared by contractors. 
‘‘(B) The annual diversion or water delivery de-
mands for the current year anticipated for non-irri-
gation uses under water delivery contracts, including 
the demand for delivery for uses in the State of Ari-
zona under the Northwestern New Mexico Rural 
Water Supply Project authorized by section 302(a) 
of the Northwestern New Mexico Rural Water 
Projects Act, but excluding any current demand for 
surface water for placement into aquifer storage for 
future recovery and use. 
‘‘(C) An annual normal diversion demand of 
135,000 acre-feet for the initial stage of the San 
Juan-Chama Project authorized by section 8. 
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‘‘(2) The Secretary shall not include in the normal 
diversion requirements— 
‘‘(A) the quantity of water that reliably can be 
anticipated to be diverted or delivered under a con-
tract from inflows to the San Juan River arising 
below Navajo Dam under New Mexico State Engi-
neer File No. 3215; or 
‘‘(B) the quantity of water anticipated to be 
supplied through reuse. 
‘‘(3) If the State of New Mexico determines that 
water uses under Navajo Reservoir water supply contracts 
or diversions by the San Juan-Chama Project need to be 
reduced in any 1 year for the State to comply with the 
Upper Colorado River Basin Compact, as consented to by 
the Act of April 6, 1949 (63 Stat. 31, chapter 48), the 
Secretary shall reduce the normal diversion requirements 
for the year to reflect the water use or diversion limita-
tions imposed by the State of New Mexico. 
‘‘(e)(1) If the Secretary determines that there is a 
shortage of water under subsection (a), the Secretary shall 
allocate the shortage to the demands on the Navajo Res-
ervoir water supply in the following order of priority: 
‘‘(A) The demand for delivery for uses in the 
State of Arizona under the Northwestern New Mex-
ico Rural Water Supply Project authorized by sec-
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tion 303 of the Northwestern New Mexico Rural 
Water Projects Act, excluding the quantity of water 
anticipated to be diverted for the uses from inflows 
to the San Juan River that arise below Navajo Dam 
in accordance with New Mexico State Engineer File 
No. 3215. 
‘‘(B) The demand for delivery for uses allocated 
under paragraph 8.2 of the agreement executed 
under section 401(a)(2) of the Northwestern New 
Mexico Rural Water Projects Act, excluding the 
quantity of water anticipated to be diverted for such 
uses under State Engineer File No. 3215. 
‘‘(C) The uses in the State of New Mexico that 
are determined under subsection (d), in accordance 
with the procedure for apportioning the water supply 
under subsection (a). 
‘‘(2) For any year for which the Secretary determines 
and allocates a shortage in the Navajo Reservoir water 
supply, the Secretary shall not deliver, and contractors of 
the water supply shall not divert, any of the water supply 
for placement into aquifer storage for future recovery and 
use. 
‘‘(3) To determine the occurrence and amount of any 
shortage to contracts entered into under this section, the 
Secretary shall not include as available storage any water 
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stored in a top water bank in Navajo Reservoir established 
under section 16(a) of the Act of April 11, 1956 (com-
monly known as the ‘Colorado River Storage Project Act’). 
‘‘(f) The Secretary of the Interior shall apply the 
sharing and apportionment of water determined under 
subsections (a), (d), and (e) on an annual volume basis. 
‘‘(g) The Secretary of the Interior may revise a deter-
mination of shortages, apportionments, or allocations of 
water under subsections (a), (d), and (e) on the basis of 
information relating to water supply conditions that was 
not available at the time at which the determination was 
made. 
‘‘(h) Nothing in this section prohibits the Secretary 
from reallocating water for any year, including a year in 
which a shortage is determined under subsection (a), in 
accordance with cooperative water agreements between 
water users providing for a sharing of water supplies. 
‘‘(i) Any water available for diversion under New 
Mexico State Engineer File No. 3215 shall be distributed, 
to the maximum extent practicable, in proportionate 
amounts to the diversion demands of all contractors and 
subcontractors of the Navajo Reservoir water supply that 
are diverting water below Navajo Dam.’’. 
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SEC. 103. EFFECT ON FEDERAL WATER LAW. 
Unless expressly provided in this Act, nothing in this 
Act modifies, conflicts with, preempts, or otherwise af-
fects— 
(1) the Boulder Canyon Project Act (43 U.S.C. 
617 et seq.); 
(2) the Boulder Canyon Project Adjustment Act 
(54 Stat. 774, chapter 643); 
(3) the Act of April 11, 1956 (commonly known 
as the ‘‘Colorado River Storage Project Act’’) (43 
U.S.C. 620 et seq.); 
(4) the Act of September 30, 1968 (commonly 
known as the ‘‘Colorado River Basin Project Act’’) 
(82 Stat. 885); 
(5) Public Law 87–483 (76 Stat. 96); 
(6) the Treaty between the United States of 
America and Mexico representing utilization of wa-
ters of the Colorado and Tijuana Rivers and of the 
Rio Grande, signed at Washington February 3, 1944 
(59 Stat. 1219); 
(7) the Colorado River Compact of 1922, as ap-
proved by the Presidential Proclamation of June 25, 
1929 (46 Stat. 3000); 
(8) the Compact; 
(9) the Act of April 6, 1949 (63 Stat. 31, chap-
ter 48); 
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