Except as provided in sections
620d
(d)(5),
1543
(g)(2), and
1595
(b) of this title, with respect to the Colorado River Basin Project Act [
43 U.S.C.
1501 et seq.] and the Colorado River Storage Project Act [
43 U.S.C.
620 et seq.], respectively, nothing in this subchapter shall be construed to alter, amend, repeal, modify, interpret, or be in conflict with the provisions of the Colorado River Compact (
45 Stat. 1057), the Upper Colorado River Basin Compact (
63 Stat. 31), the Water Treaty of 1944 with the United Mexican States (Treaty Series 994;
59 Stat. 1219), the decree entered by the Supreme Court of the United States in Arizona against California and others (376 U.S. 340), the Boulder Canyon Project Act (
45 Stat. 1057) [
43 U.S.C.
617 et seq.], Boulder Canyon Project Adjustment Act (
54 Stat. 774;
43 U.S.C.
618a) [
43 U.S.C.
618 et seq.], section 15 of the Colorado River Storage Project Act (
70 Stat. 111;
43 U.S.C.
620n), the Colorado River Basin Project Act (
82 Stat. 885), section 6 of the Fryingpan-Arkansas Project Act (
76 Stat. 393) [
43 U.S.C.
616e], section 15 of the Navajo Indian irrigation project and initial stage of the San Juan-Chama Project Act (
76 Stat. 102) [
43 U.S.C.
615ww], the National Environmental Policy Act of 1969 [
42 U.S.C.
4321 et seq.], and the Federal Water Pollution Control Act, as amended [
33 U.S.C.
1251 et seq.].