delivered the opinion of the court.
In a water’ adjudication proceeding the Leadville Mine Development Company, herein referred to as the company, claimed certain water rights prior аnd superior to existing appropriations of water rights on the Arkansas *537 river. Albert Anderson, J. H. Habenicbt, Ben Behrman, Fred Post and Richard Sneddon, owners of water rights on that river opрosed the company’s claim to priority. The court awarded the company’s claim to the extent of six cubic feet of water per second of time. The cоurt, however, refused to decree such water right to be prior and superior to the rights of the objectors, but, on the contrary, awarded it priority as of March 16,1921, which made it subjеct to their appropriations.
The company owns the Canterbury tunnel in Lake county. It is in the Arkansas river watershed. The portal is situated on a mountainside, is about 1,000 feet frоm the Arkansas river, and is at a considerably higher elevation than the river. About 1,940 feet from the portal the tunnel passed through a porphyry dike some twenty feet thick. A short distance beyond the dike a considerable increase in the flow of water was encountered. The water was carried through two boxes to the portal of the tunnel, and frоm there it flowed down the mountainside into the Arkansas river. On February 2, 1923, Edward W. Keith, an agent of the company, filed a claim to a right to the use of such water for mining, milling, irrigation and other purposes, and thereupon deeded his rights to the company. Thereafter ther'e was constructed a ditch, through which the water was carried across the river.
Where a person by his own efforts has increased the flow of water in a natural stream, he is entitled to the use of the water to the extent of the increase.
Platte Valley Irrigatiоn Co. v. Buckers Irrigation, Milling and Improvement Co.,
Two witnesses, called by the company as experts, described the geology of that vicinity. A plat introduced in evidence shows the porphyry dike extending down from the lower of the two porphyry layers. The plat shows immediately above the tunnel a thick layer of limestone; above that two layers of porphyry; above that a layer of shale; and then surfaсe wash. Below the tunnel it shows successive layer's of limestone, parting quartzite, white lime and Cambrian quartzite. It also shows two “faults,” one between the dike and the portal, and the other a considerable distance beyond the dike. The increased flow of water, according to the testimony, came from the floor of the tunnel. Witnesses testified that since the increased flow was encountered in the tunnel, the flow of springs in the vicinity had not diminished. The company’s theory is that shale and porphyry ar'e impervious to watеr; that the water in question is what is known as “juvenile” water; that before the tunnel was constructed, the water did not reach the river; and that, but for the tunnel, it could not r'each the river. The opinions given by the engineers, by whom it was sought to support that theory, were not without reservations and qualifications. Thus, one of the engineers said that water will not penetrаte shale or porphyry “readily, unless the formation is badly shattered by br'eaks to admit water”; that in the Leadville district probably the greater amount of water runs off the surface into the Arkansas river. Asked whether it reached the formation under the shale or the porphyry layers, he answered, “Well, I caimot say as to that; but it would be my judgment that a comparatively small portion оf it did. ’ ’ He testified that “juvenile” water comes up from below; that “it is possible” that the water from the tunnel ‘ ‘ could be ” juvenile water. Asked whether the porphyry dike disclosed in the tunnel wоuld act as a dam against the water, he answered, “I think it would be.” “Q. After *539 the action causing the break or deposit, as the case might be, which caused the existence of dikе £x,’ would there likely be an amalgamation, if there was a break, which would seal the intersection of that dike with the formation above, so that water would not percolate through it? A. I cannot say as to that. It is possible there would be a clay parting between the two beds of porphyry, if there were two beds, that would act as a water seal; and I rather thinlc that the porphyry dike and the porphyry sheet are one and the same thing; no break between them. Q. In your judgment as an engineer, was there sufficient force or pressure behind the water from the Canterbury tunnеl, before the tunnel was driven, to drive it to the surface and make it a part of the flow of the Arkansas river? A. Yes, sir, I think there is sufficient pressure of water to drive a small amount of wаter through natural channels into the Arkansas river; however, it is rather hard to anstver that question positively; the elevation of the ground water of the area above the Canterbury tunnel stood at a considerable еlevation above the level of the tunnel, and also above the Arkansas river — so a certain amount of water would naturally be forced down into the Arkansas river; although probably a very small amount.” (Italics are ours.) The other engineer, asked whether the dike is impervious to water, answered, “Probably rather impervious.” Asked whether the dike would act аs a dam against the water, he answered, “I think it would.” “Q. Is it not a fact, Mr. Chapman, that wherever we have, in the Leadville section, dikes crossing formations, that we find that water is backed up behind them? A. A few instances I know, it has always been.” Asked whether the water from the tunnel “can” be juvenile water, he answered, “I think so.” “Q. Have you ever made such examination оf that flow as would determine whether or not it comes through the earth or from the surface above? A. We never have.” “Q. If there had been, at the time of this formation, a break between the porphyry dike shown as £x’ and the *540 overlying sheet of porphyry, what would you say as to the possibility of a sealing of that in time? A. It very probably would be sealed.”
The triаl court found that the company “failed to sustain the burden of proving that the water’s which it claims to have developed in and by the Canterbury tunnel did not, prior to their diversion by Interрleader [the company] through the said tunnel, drain, seep or flow, or drain, seep and flow into the Arkansas river and constitute a part of the source of supply therеof. ’ ’ After a careful examination of the record, we cannot say that the trial court reached the wrong conclusion. The objectors did not have the burden of shоwing that the water" did reach the river before the construction of the tunnel; but, as we have seen, the burden was on the company to prove by clear and satisfactory evidence that the water was produced and contributed to the river by it, and that, if not interfered with, but left to flow in accordance with natural laws, the water would not have rеached the Arkansas river. It is not enough to show that the flow of water to the river was hastened by the construction of the tunnel, but it must be shown that the flow of the river was augmented.
Bieser v. Stoddard, 73
Colo. 554, 564,
Upon an examination of the testimony and of the several maps in evidence, we conclude that we would not be justified in setting aside the findings and the judgment.
The judgment is affirmed.