to v. Teleprompter Manhattan CATV Corp., 458 U.S. 419, 426, 102 S.Ct. 3164, 3171, 73 L.Ed.2d 868 (1982); In re Etter, 756 F.2d 852, 859, 225 USPQ 1, 6 (Fed.Cir.), cert. denied, 474 U.S. 828, 106 S.Ct. 88, 88 L.Ed.2d 72 (1985) (“The essence of all property is the right to exclude....”); Connell v. Sears, Roebuck & Co., 722 F.2d 1542, 1548, 220 USPQ 193, 198 (Fed.Cir.1983) (citing Schenck v. Nortron Corp., 713 F.2d 782, 218 USPQ 698 (Fed.Cir.1983)).
The notion of exclusive ownership as a property right is fundamental to our theory of social organization. In addition to its central role in protecting the individual’s right to be let alone, the importance of exclusive ownership — the ability to exclude freeriders — is now understood as essential to economic development, and to the avoidance of the wasting of resources found under common property systems. See Hardin, The Tragedy of the Commons, 162 Science 1243 (1968); Barzel, Optimal Timing of Inventions, 50 Rev.Econ. & Stat. 348 (1968); Lunn, The Roles of Property Rights and Market Power in Appropriating Innovative Output, 14 J. Legal Stud. 423 (1985).
The intruder who enters clothed in the robes of authority in broad daylight commits no less an invasion of these rights than if he sneaks in in the night wearing a burglar’s mask. In some ways, entry by the authorities is more to be feared, since the citizen’s right to defend against the intrusion may seem less clear. Courts should leave no doubt as to whose side the law stands upon.
In the case before us, the Order issued by the EPA purported to authorize Government agents, both federal and state, to come on plaintiffs land and to establish a Government presence there. That it was for a beneficent purpose, from the viewpoint of the general public at least, is not at issue; plaintiffs did not contest, nor do we think they could, that the Order qualifies under the “public purpose” language of the Fifth Amendment.
The question addressed by the Claims Court in Hendler I was whether that Order, standing alone, met the tests for a regulatory taking. The court concluded no. On the facts then before the court, and in light of the absence by plaintiffs of proof of facts addressed specifically to the tests for a regulatory taking based on the Order alone, we do not disagree with that ruling.
We note, however, that that ruling says nothing about whether subsequent events, in light of the character of the Government’s action and plaintiffs’ distinct investment-backed expectations, might have had sufficient economic impact on the plaintiffs to constitute a regulatory taking. Given the fact-specific findings required for determining under current regulatory takings law when such a taking occurs, we understand the trial judge to have refrained from deciding this issue on summary judgment. It remains an issue in the case.
B.
Takings under the Traditional Physical Occupation Theory
1.
The second issue before the trial court was whether the Government’s actions, in placing wells on plaintiffs’ property and engaging in other activities on the site, was a taking — an inverse condemnation — under traditional physical occupation theory. With regard to the wells, the trial judge felt more evidence was needed to establish “whether the devices are truly permanently affixed to plaintiffs’ property.” Hendler I at 97. But on the facts before the judge, that conclusion again misperceives the thrust of the protections afforded by the Fifth Amendment.
A physical occupation of private property by the government which is adjudged to be of a permanent nature is a taking, and that is true without regard to whether the action achieves an important public benefit or has only minimal economic impact on the owner. Loretto v. Teleprompter Manhattan CATV Corp., 458 U.S. 419, 102 S.Ct. 3164, 73 L.Ed.2d 868 (1982) (placement by authority of the government of cable television (CATV) cable and connection boxes on the roof of an