CASE NAME Pennsylvania Coal Company v. Mahon et al.
CITATION, DATE 260 U.S. 393; December 11, 1922, Decided
COURT SUPREME COURT OF THE UNITED STATES
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PROCEDURAL HISTORY

TRIAL COURT: APPEAL COURT (for appeal cases only):
PLAINTIFF Mahon, homeowners APPELLANT Pennsylvania Coal Co.
DEFENDANT Pennsylvania Coal Company RESPONDENT Mahon
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DESCRIPTION OF EVENTS
    "This is a bill in equity brought by the defendants in error to prevent the Pennsylvania Coal Company from mining under their property in such way as to remove the supports and cause a subsidence of the surface and of their house. The bill sets out a deed executed by the Coal Company in 1878, under which the plaintiffs claim. The deed conveys the surface, but in express terms reserves the right to remove all the coal under the same, and the grantee takes the premises with the risk, and waives all claim for damages that may arise from mining out the coal. But the plaintiffs say that whatever may have been the Coal Company's rights, they were taken away by an Act of Pennsylvania, approved May 27, 1921, P.L. 1198, commonly known there as the Kohler Act."
    "The statute forbids the mining of anthracite coal in such way as to cause the subsidence of, among other  [*413]  things, any structure used as a human habitation, with certain exceptions, including among them land where the surface is owned by the owner of the underlying coal and is distant more than one hundred and fifty feet from any improved property belonging to any other person. As applied to this case the statute is admitted to destroy previously existing rights of property and contract. The question is whether the police power can be stretched so far."
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REMEDY SOUGHT At trial: payment "for use and occupation under the idea of trespass."
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ARGUMENT FOR PLAINTIFF (defendants in error, the Mahons)
    "A reading of the Kohler Act involved in this appeal discloses that it is not directed to the reimbursement of surface owners for damage which may be caused either to persons or property, but is directed solely to the protection of human life."
    "The protection of the life, health and safety of the public in the anthracite mining communities is the primary purpose of the act. Its interference with property rights is merely incidental."
    "The danger to the public arising from the contracts entered into with respect to coal lands, however, was not clearly recognized until recent years."
    "In its application to all coal lands where the right of surface support is still vested in the surface owner, the effect of the Kohler Act is to prevent the making of any valid contract whereby the right of support may be separated from the surface ownership in such manner as to permit the subsidence of any of the structures or facilities mentioned in the act. It must be remembered that there is a broad field in which the Kohler Act does thus operate. If the circumstances which now exist in the anthracite regions could have been foreseen and certainly predicted by the legislature a half century ago, it would clearly have been within its power to limit the owner's right to contract, by the enactment of such a regulatory measure as the Kohler Act. And we are confident that if it were not for the existence of contracts already entered into, the constitutionality of this act would not have been questioned."
    "All property within the State is held, and all contracts are entered into subject to the future exercise of the police power of the State. Every such agreement was entered into by the parties with full knowledge that whenever the existence of such contracts and the exercise of the license reserved should threaten the life, health or safety of the people, the Commonwealth in its sovereign power might interpose and restrict the use of those contract rights to such extent as might be necessary in the public interest."
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ARGUMENT FOR DEFENDANT (plaintiff in error, Pennsylvania Coal Company)
    (1) "The statute impairs the obligation of the contract between the parties. On August 26, 1921, the Mahons were bound by a valid covenant to permit the Coal Company, which had sold to them or to their ancestor the surface rights only in their lot, to exercise without objection or hindrance by them, its reserved right to mine out all the coal, without liability to them for damages occasioned thereby, which damages had been expressly waived as a condition for the grant. On August 27, 1921, the statute completely annulled this covenant, by giving them the right, by injunction, to prevent such mining."
    (2) The statute takes the property of the Coal Company without due process of law. Whenever the use of the land is restricted in any way or some incorporeal hereditament is taken away which was appurtenant thereto, it constitutes as much a taking as if the land itself had been appropriated.... As pointed out in Justice Kephart's dissenting opinion, the courts of Pennsylvania have recognized three distinct estates in mining property: (1) The right to use the surface; (2) the ownership of the subjacent minerals; (3) the right to have the surface supported by the subjacent strata. This third right, called the Thirds Estate, has been recognized as so distinct from the ownership of the surface or of the minerals that it may be transferred to and held or conveyed by one who was neither the owner of the surface nor of the coal.
    (3) The statute is not a bona fide exercise of the police power. a law "passed at the insistence of a determined and organized minority, designed to confiscate for their benefit the rights of producers of property, and passed by a legislature in time of political stress, in its anxiety to secure the votes controlled by the advocates of the measure. Such a law, we submit, is the Kohler Act....  the Kohler Act is in reality what this Court in Loan Association v. Topeka, 20 Wall. 655, characterized as "not legislation," but "robbery under the forms of law...." The act shows on its face that its purpose is not to protect the lives or safety of the public generally but merely to augment the property rights of a favored few.... The only interests not heretofore fully protected both by the right to damages and to injunctive relief, were those individuals who were owners of surface rights merely, and whose right of subjacent support had been withheld or waived, presumably for adequate consideration, or public or quasi-public bodies who, instead of condemning their streets or school buildings and thus paying for and securing the permanent support of the underlying coal, have obtained them at a bargain from parties who acquired only restricted title such as the Mahons possess."
    "A further evidence that the act is disingenuous is found in § 5. If it were really to protect life and safety, the municipal authorities would naturally be empowered, in case of threatened subsidence, to rope off the endangered area and to compel the occupants to vacate the premises. Instead, they are merely empowered to shut up the mine and to exclude the workmen therefrom."
    (4) " If surface support in the anthracite district is necessary for public use, it can constitutionally be acquired only by condemnation with just compensation to the parties affected."
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COURT OPINION
    "Government hardly could go on if to some extent values incident to property could not be diminished without paying for every such change in the general law. As long recognized, some values are enjoyed under an implied limitation and must yield to the police power. But obviously the implied limitation must have its limits, or the contract and due process clauses are gone. One fact for consideration in determining such limits is the extent of the diminution. When it reaches a certain magnitude, in most if not in all cases there must be an exercise of eminent domain and compensation to sustain the act. So the question depends upon the particular facts. The greatest weight is given to the judgment of the legislature, but it always is open to interested parties to contend that the legislature has gone beyond its constitutional power."
    "This is the case of a single private house. No doubt there is a public interest even in this, as there is in every purchase and sale and in all that happens within the commonwealth. Some existing rights may be modified even in such a case. Rideout v. Knox, 148 Mass. 368. But usually in ordinary private affairs the public interest does not warrant much of this kind of interference. A source of damage to such a house is not a public nuisance even if similar damage is inflicted on others in different places. The damage is not common or public. Wesson v. Washburn Iron Co., 13 Allen, 95, 103. The extent of  [*414]  the public interest is shown by the statute to be limited, since the statute ordinarily does not apply to land when the surface is owned by the owner of the coal. Furthermore, it is not justified as a protection of personal safety. That could be provided for by notice. Indeed the very foundation of this bill is that the defendant gave timely notice of its intent to mine under the house. On the other hand the extent of the taking is great. It purports to abolish what is recognized in Pennsylvania as an estate in land -- a very valuable estate -- and what is declared by the Court below to be a contract hitherto binding the plaintiffs."
    "It is our opinion that the act cannot be sustained as an exercise of the police power, so far as it affects the mining of coal under streets or cities in places where the right to mine such coal has been reserved. As said in a Pennsylvania case, "For practical purposes, the right to coal consists in the right to mine it." Commonwealth v. Clearview Coal Co., 256 Pa. St. 328, 331. What makes the right to mine coal valuable is that it can be exercised with profit. To make it commercially impracticable to mine certain coal has very nearly the same effect for constitutional purposes as appropriating or destroying it. This  [*415]  we think that we are warranted in assuming that the statute does."
    "The rights of the public in a street purchased or laid out by eminent domain are those that it has paid for. If in any case its representatives have been so short sighted as to acquire only surface rights without the right of support, we see no more authority for supplying the latter without compensation than there was for taking the right of way in the first place and refusing to pay for it because the public wanted it very much. The protection of private property in the Fifth Amendment presupposes that it is wanted for public use, but provides that it shall not be taken for such use without compensation. A similar assumption is made in the decisions upon the Fourteenth Amendment. Hairston v. Danville & Western Ry. Co., 208 U.S. 598, 605. When this seemingly absolute protection is found to be qualified by the police power, the natural tendency of human nature is to extend the qualification more and more until at last private property disappears. But that cannot be accomplished in this way under the Constitution of the United States."
    "The general rule at least is, that while property may be regulated to a certain extent, if regulation goes too far it will be recognized as a taking.... In general it is not plain that a man's misfortunes or necessities will justify his shifting the damages to his neighbor's shoulders. Spade v. Lynn & Boston R.R. Co., 172 Mass. 488, 489. We are in danger of forgetting that a strong public desire to improve the public condition is not enough to warrant achieving the desire by a shorter cut than the constitutional way of paying for the change."
    "We assume, of course, that the statute was passed upon the conviction that an exigency existed that would warrant it, and we assume that an exigency exists that would warrant the exercise of eminent domain. But the question at bottom is upon whom the loss of the changes desired should fall. So far as private persons or communities have seen fit to take the risk of acquiring only surface rights, we cannot see that the fact that their risk has become a danger warrants the giving to them greater rights than they bought."

    Brandeis dissented from the majority opinion: "restriction imposed to protect the public health, safety or morals from dangers threatened is not a taking. The restriction here in question is merely the prohibition of a noxious use....
    "Restriction upon use does not become inappropriate as a means, merely because it deprives the owner of the only use to which the property can then be profitably put.... Nor is a restriction imposed through exercise of the police power inappropriate as a means, merely because the same end might be effected through exercise of the power of eminent domain, or otherwise at public expense."
    "If we are to consider the value of the coal kept in place by the restriction, we should compare it with the value of all other parts of the land. That is, with the value not of the coal alone, but with the value of the whole property. The rights of an owner as against the public are not increased by dividing the interests in his property into surface and subsoil. The sum of the rights in the parts can not be greater than the rights in the whole."

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DISPOSITION OF CASE
    "Decree reversed."
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ECONOMIC ANALYSIS

    In this case, ownership of surface rights was separated from ownership of support rights. This was explicitly the case in PA and built into contracts. Presumably, that split got factored into property prices.
    The controversy focuses on whether the property right should be bought or legislated away. There is an incentive for excessive regulation without requiring compensation. An unanticipated danger might be assessed to either party, but in this case the parties did specify the right and transact it.