delivered the opinion of the court.
On behalf of the defendant in error, his counsel urges that the section of the ordinance under consideration is illegal, for the reason that the municipal authorities had no power to declare a pigsty or slaughterhouse a nuisance per se, except they be maintained within the limits of the city or within one mile beyond. In support of this proposition, we are referred to subdivisions 51 and 58 of section 4403, supra, which in terms provide that the city council has authority to direct the locatiort, and regulate the management of slaughterhouses and other designated places, and also to prohibit any offensive or unwholesome business within the limits of the municipality, or within one mile of its boundaries. This is not the material or decisive question under the undisputed facts, and it is unnecessary to determine it in this case. The legislature has clothed the municipal authorities with power to protect the stream from which the inhabitants of the city derive their supply of water from pollution, within prescribed limits. In pursuance of this power, an ordinance has been passed for that .purpose. It must be reasonably construed, and given that interpretation, if possible, which will effect the object of its passage (1 Dillon’s Municipal Corporations [4th ed.], 420), and in construing it, we must consider its provisions as a whole. The manifest purpose of the ordinance, as indicated by its title,, is to protect the stream from pollution, from which the water supplied to the city for the use of the inhabitants is drawn. In sections other than the one under which defendant in error was prosecuted, it provides for the punishment of persons who shall permit any fluid which would render the waters of the stream impure, to flow into it from premises occupied by them, or who shall permit any substance to remain upon their premises within such distance of the stream that such substance, or the drainage therefrom, might fall, or be carried into the river. The section in question inhibits the construction or keeping of any pigsty or any place upon the bank of the river, the *173drainage from which is capable of rendering the water of the stream impure or unwholesome. It was not the mere keeping of these places within prescribed limits which was the particular thing prohibited, but the drainage therefrom, which flowed or might flow into the river, was the danger which the ordinance sought to obviate. The evidénce established that the pigsty and slaughterhouse maintained by defendant in error are within five miles above the point where the water-supply of the city is diverted, and are so situated with respect to the stream from which this supply is drawn, that the drainage therefrom not only might, but actually did, flow into the stream. This, at least, is true with respect to the pigsty; and so with the drainage from the slaughterhouse or the surrounding premises, although it might first filter through the sands of the bar at the mouth of the slough. It also appears that the hogs confined in the yard had access to the waters of the river. The fact that these places may have been well kept is no defense, for it needs no evidence to demonstrate, that if water flowing over the surface of an enclosure in which swine are kept, or from a slaughterhouse or over the ground in its near vicinity, whether from natural causes or otherwise, reaches the stream from which the city draws its water supply, it will be rendered impure and unwholesome. Common knowledge teaches this would be the result, without proof. North Chicago City R. Co. v. Town of Lake View, 105 Ill. 207. These were the material facts, regarding which there is no conflict in the evidence, and it was error for the trial court to find the defendant not guilty. In disposing of this ease upon the ground we do, we do not wish to be understood as deciding that the slaughterhouse and pigsty of defendant in error, by reason of their close proximity to the river, might not be declared nuisances per se, without extrinsic proof that they actually polluted the waters of the stream. North Chicago City R. Co. v. Town of Lake View, supra.
It is also claimed by defendant in error, that because the town of Animas city takes its supply of water from the Animas river at a point which would give the latter jurisdiction *174to also punish defendant for the same offense for which he is being proceeded against in this case, that the city of Durango cannot exercise jurisdiction for this purpose. In support of this claim, the doctrine is invoked, that there cannot be, at the same time, within the same territory, two distinct municipal corporations exercising the same powers, jurisdictions and privileges. This proposition has no application to the case at bar; there is no evidence that Animas city has passed an ordinance which would render defendant in error liable for the pollution of the stream, by drainage from his slaughterhouse and pigsty; and even if it had, that would be no defense to this action, for in such case his act in polluting the waters of the river would constitute two different offenses against two distinct sovereignties. McInerney v. City of Denver, 17 Colo. 302; Hughes v. People, 8 Colo. 536; People v. Reims, 20 Colo. 489.
Any other conclusion would result in the anomaly, that if two municipalities were so situated with respect to each other, secured their water supply from the same source, and at such relative points that the jurisdiction of each for the purpose of preventing pollutions was coextensive, the common supply could be polluted with impunity within such territory. The judgment of the county court is reversed, and the cause remanded for further proceedings, in accordance with the views herein expressed.
Reversed and remanded.