What follows is an opinion from the Supreme Court of the United States. Your task is to determine the bases on which the Supreme Court rested its decision with regard to the legal provision that the Court considered in the case. Consider "judicial review (national level)" if the majority determined the constitutionality of some action taken by some unit or official of the federal government, including an interstate compact. Consider "judicial review (state level)" if the majority determined the constitutionality of some action taken by some unit or official of a state or local government. Consider "statutory construction" for cases where the majority interpret a federal statute, treaty, or court rule; if the Court interprets a federal statute governing the powers or jurisdiction of a federal court; if the Court construes a state law as incompatible with a federal law; or if an administrative official interprets a federal statute. Do not consider "statutory construction" where an administrative agency or official acts "pursuant to" a statute, unless the Court interprets the statute to determine if administrative action is proper. Consider "interpretation of administrative regulation or rule, or executive order" if the majority treats federal administrative action in arriving at its decision.Consider "diversity jurisdiction" if the majority said in approximately so many words that under its diversity jurisdiction it is interpreting state law. Consider "federal common law" if the majority indicate that it used a judge-made "doctrine" or "rule; if the Court without more merely specifies the disposition the Court has made of the case and cites one or more of its own previously decided cases unless the citation is qualified by the word "see."; if the case concerns admiralty or maritime law, or some other aspect of the law of nations other than a treaty; if the case concerns the retroactive application of a constitutional provision or a previous decision of the Court; if the case concerns an exclusionary rule, the harmless error rule (though not the statute), the abstention doctrine, comity, res judicata, or collateral estoppel; or if the case concerns a "rule" or "doctrine" that is not specified as related to or connected with a constitutional or statutory provision. Consider "Supreme Court supervision of lower federal or state courts or original jurisdiction" otherwise (i.e., the residual code); for issues pertaining to non-statutorily based Judicial Power topics; for cases arising under the Court's original jurisdiction; in cases in which the Court denied or dismissed the petition for review or where the decision of a lower court is affirmed by a tie vote; or in workers' compensation litigation involving statutory interpretation and, in addition, a discussion of jury determination and/or the sufficiency of the evidence.

Opinion:
UNITED STATES v. DISTRICT COURT IN AND FOR WATER DIVISION NO. 5 et al.
No. 812.
Argued March 2, 1971
Decided March 24, 1971
MR. Justice Douglas delivered the opinion for a unanimous Court. Mr. Justice HarlaN, though joining in the opinion, filed a concurring statement, post, p. 530.
Deputy Assistant Attorney General Kiechel argued the cause for the United States. With him on the briefs were Solicitor General Griswold, Assistant Attorney General Kashiwa, Samuel Huntington, and Edmund B. Clark.
Kenneth Balcomb argued the cause for respondents. With him on the brief was Robert L. McCarty.
Mr. Justice Douglas
delivered the opinion of the Court.
This is a companion case to the Eagle County case, ante, p. 520, and involves an action brought under a different state statute in the District Court of Colorado for Water Division No. 5. That court was given responsibility for water rights determinations affecting “all lands in the state of Colorado in the drainage basins of the Colorado river and all of its tributaries arising within Colorado, with the exception of the Gunnison river,” which includes the area of the Eagle River system.
Notice was served on the United States pursuant to 43 U. S. C. § 666 (b) and it moved to quash the service. That motion was denied. A writ of prohibition was sought in the Supreme Court and it was also denied. The case is here on a petition for a writ of certiorari which we granted. 400 U. S. 940.
The area covered by this suit includes vastly more extensive water rights than those involved in the Eagle County case. The Forest Service administers four separate national forests in the area: the White River, Arapaho, Routt, and Grand Mesa-Uncompahgre. The Department of the Interior, through the Bureau of Reclamation, the National Park Service, the Bureau of Land Management, the Bureau of Mines, and the Bureau of Sport Fisheries and Wildlife, makes use of water in Water Division No. 5 for national recreational and other purposes. The Department of the Navy administers certain naval petroleum and oil shale reserves which, if ever developed, would require water to accomplish the federal purpose for which the reservations were made.
The major issue — the scope of the consent-to-be-sued provision in 43 U. S. C. § 666 — has been covered in the Eagle County opinion and need not be repeated here.
It is emphasized, however, that the procedures under the new Act are much more burdensome on the Government than they were under the older Act. It is pointed out that the new statute contemplates monthly proceedings before a water referee on water rights applications. These proceedings, it is argued, do not constitute general adjudications of water rights because all the water users and all water rights on a stream system are not involved in the referee’s determinations. The only water rights considered in the proceeding are those for which an application has been filed within a particular month. It is also said that the Act makes all water rights confirmed under the new procedure junior to those previously awarded.
It is argued from those premises that the proceeding does not constitute a general adjudication which 43 U. S. C. § 666 contemplated. As we said in the Eagle County case, the words “general adjudication” were used in Dugan v. Rank, 372 U. S. 609, 618, to indicate that 43 U. S. C. § 666 does not cover consent by the United States to be sued in a private suit to determine its rights against a few claimants. The present suit, like the one in the Eagle County case, reaches all claims, perhaps month by month but inclusively in the totality; and, as we said in the other case, if there is a collision between prior adjudicated rights and reserved rights of the United States, the federal question can be preserved in the state decision and brought here for review.
Affirmed.
The Colorado Water Rights Determination and Administration Act of 1969, Colo. Rev. Stat. Ann. § 148-21-1 et seq., Colo. Rev. Stat. Ann. § 148-21-18 (3) (Supp. 1969).
The 1969 Act here in question abolished the 70 water districts previously existing and replaced them with seven water divisions.
Colo. Rev. Stat. Ann. § 148-21-8 (6).

Question: What is the basis of the Supreme Court's decision?

Choices:
judicial review (national level)
judicial review (state level)
Supreme Court supervision of lower federal or state courts or original jurisdiction
statutory construction
interpretation of administrative regulation or rule, or executive order
diversity jurisdiction
federal common law

Answer: 3