In thеse consolidated appeals, plaintiffs appeal as of right from orders granting summary disposition in favor of defendants. We affirm.
Defendants, the charter townships of Canton, Plymouth, and Northville, and the cities of Farmington and Farmington Hills, contracted with defendants, the waste-hаuling companies Canton Waste Recycling Co., Industrial Materials Clearance, Inc., and Waste Management of Michigan, Inc., to haul yard waste to a composting facility in Canton. The facility was operated by defendant Compost Systems, Inc., on land leased from Canton Township, and utilized composting equipment leased from defendant Western Townships Utilities Authority (wtua). Plaintiffs are a citizens group and various individuals who live or work in the vicinity of the composting facility.
Unpleasant odors emanated from the composting facility. For that reason, plaintiffs filed suit against defendants, alleging nuisance and a violation of the Michigan Environmental Protection Act (mepa), MCL 691.1201 et seq.; MSA 14.528(201) et seq.
The court grаnted summary disposition in favor of defendant municipalities on the basis of govern *605 mental immunity, and in favor of defendant waste haulers on the ground that they did not have ownership or control over the facility. Plaintiffs now appeal. Defendant Compost Systems, Inc., is not a party to this appeal, and the mepa claim is no longer at issue.
i
A
We first consider whether the wtua is an entity that is entitled to governmental immunity from tоrt liability. This presents a question of law that we review de novo.
Rapistan Corp v Michaels,
Pursuant to MCL 691.1407(1); MSA 3.996(107X1), a governmental agency that is engaged in the discharge of a gоvernmental function is immune from tort liability. For purposes of that provision, a governmental agency is "the state, political subdivisions, and municipal corporations.” MCL 691.1401(d); MSA 3.996(101)(d). A municipal corporation is "any city, village, township or charter township, or any combination therеof, when acting jointly.” MCL 691.1401(a); MSA 3.996(101)(a). A political subdivision is "any municipal corporation, . . . township, charter township, ... or any combination thereof, when acting jointly, and any district or authority authorized by law or formed by 1 or more political subdivisions.” MCL 691.1401(b); MSA 3.996(101)(b).
The charter townships of Plymouth, Canton, and Northville formed the wtua pursuant to MCL 124.281 et seq.; MSA 5.2769(51) et seq., which provides for the establishment of sewage-disposal, water-supply, and solid-waste managemеnt system authorities.
*606 Applying the above definitions, the wtua is a political subdivision, and possibly also a municipal corporation, that is entitled to governmental immunity. The lower court’s ruling in this respect was not erroneous.
B
Next, we consider whether the trespass-nuisance exсeption to governmental immunity bars the municipalities and the wtua from raising the defense of governmental immunity.
Our Supreme Court recognized thе trespass-nuisance exception to governmental immunity in
Hadfield v Oakland Co Drain Comm’r,
The disрute in this case concerns the element of control. Control may be found where the defendant creates the nuisance, owns оr controls the property from which the nuisance arose, or employs another to do work that he knows is likely to create a nuisance.
Continental Paper, supra; Stemen v Coffman, 92
Mich App 595, 598;
Plaintiffs have not alleged facts that would show that defendants created or were under a statutory obligation to abate the nuisance, controlled the *607 property where the nuisance arose, 1 оr employed another to do work that they knew was likely to create a nuisance. Plaintiffs’ claim, that defendants could have withheld the delivery of yard waste to the site, is simply insufficient to establish control over the nuisance, particularly in light of their acknowledgment that оthers could have continued to send yard waste to the facility. In other words, because defendants’ withholding of waste would not necessarily have eliminated the nuisance, defendants may not be considered to have had control over the nuisance.
Accordingly, the triаl court properly found inapplicable the trespass-nuisance exception to governmental immunity.
c
Plaintiffs next argue that the muniсipal defendants are not entitled to immunity because they were engaged in a proprietary, and not a governmental, function.
This аrgument is unpersuasive. A governmental function is an activity that is expressly or impliedly mandated or authorized by constitution, statute, local сharter or ordinance, or other law. MCL 691.1401(f); MSA 3.996(101X0;
Ross v Consumers Power Co (On Rehearing),
Defendants were expressly authorized to operate *608 a solid-waste management system, MCL 124.282(1); MSA 5.2769(52X1), and were impliedly required to seek an alternative to the disposal of yard waste in landfills or by incineration, MCL 299.418a; MSA 13.29(18a). We conclude that in so doing, they were engаged in a governmental function.
Furthermore, plaintiffs failed to allege facts that would justify the application of the proprietary function exception to governmental immunity,
Wade v Dep’t of Corrections,
Consequently, the trial court properly ruled that the municipal defendants were engaged in a governmental function.
D
For the above reasons, summary disposition in favor of defendant municipalities was proper under MCR 2.116(C)(7) (claim barred by governmental immunity).
ii
Finally, plaintiffs аssert that summary disposition was improper because a question of fact existed with respect to whether defendants knew or should hаve known of the nuisance condition to which they were contributing.
Because summary disposition was properly *609 granted in favor of the municipal defendants on the basis of governmental immunity, we need address this issue only with respect to defendant waste haulers.
Regardless of whether a factual question existed concеrning defendant waste haulers’ knowledge of the nuisance, there was no factual question concerning their control over the nuisanсe: they did not own or control the property from which the nuisance arose, did not create the nuisance, and did not employ аnother to do work that they knew or should have known was likely to create a nuisance.
Stemen, supra;
see
Gelman Sciences, Inc v Dow Chemical Co,
Thus, summary disposition was properly granted in favоr of defendant waste haulers under MCR 2.116(0(10) (no genuine issue of material fact).
Affirmed.
Notes
Plaintiffs have abandoned the question whether defendant Canton Township controlled the property through ownership by failing to address the issue.