The plaintiff, Neponset Reservoir Corporation (Neponset), sought injunctive relief and damages on the basis that the defendant, John M. Bashaw, trustee of the Willett-Bashaw Trust (the trust), was discharging surface waters from a drainage pipe onto the plaintiffs land. The plaintiff predicated its request for relief on two theories: (1) that the defendant had constructed a drainage pipe which encroached on the plaintiffs land, thereby constituting a trespass, and (2) that the defendant’s drainage system artificially channeled surface water onto Neponset’s land. After trial, a judge of the Land Court denied the relief sought and entered a judgment dismissing the complaint. The case is before this court on the judge’s "Decision” and designated portions of the transcript and exhibits. We conduct our review under the standard that the judge’s subsidiary findings of fact will not be set aside unless clearly erroneous. Sanguinetti v. Nantucket Constr. Co., 5 Mass. App. Ct. 227, 228 (1977). Hutchinson v. Hutchinson, 6 Mass. App. Ct. 705, 707-708 (1978). Cape Cod Hosp., Inc. v. Cape Cod Medical Center, Inc., 7 Mass. App. Ct. 873 (1979). See Mass.R. Crv.P. 52(a), 365 Mass. 816 (1974).
We first briefly outline the relationship of the two parcels of land involved in the dispute and describe the principal artifacts on each. We make this summary based on such of the facts as are substantially undisputed.
Neponset owns land located in the towns of Norwood, Westwood and Walpole which is mostly covered by a largely artificial body of water known as Willett Pond. *37The pond is an impounding reservoir maintained by a dam constructed around 1913. The actual height of the water in Willett Pond varies according to the season, the weather, and whether two valves which control a series of pipes connected with the dam to provide water to the Neponset River are open or closed. The plaintiff is required by the State to maintain a certain flow of water in the Neponset River and uses the system of valves and pipes to release water from the pond to add to the river’s flow as needed. The height at the top of the dam’s abutments with the flashboards in place is 140.68 feet above mean sea level.
The defendant acquired ownership of a parcel of land located in Westwood on December 19, 1969. The defendant trust’s land abuts Neponset’s and is surrounded on three sides by Willett Pond. Some time in 1970, the trust submitted to the Westwood planning board a plan showing the land subdivided into nine lots, and the board endorsed the plan as not requiring approval under the Subdivision Control Law. In connection with the subdivision’s development the defendant constructed a drainage pipe running from a private way across lot eight through a valley to Willett Pond. The drainage pipe as constructed ultimately receives surface water from some of the other lots in the development by way of two catch basins located in the private way. The natural contour of the land was changed in the process of constructing the drainage pipe. The drainage system terminates in a concrete head-wall located at, or near, the approximate edge of the pond. The inside bottom of the drainage pipe at this head-wall has been measured as 140.95 feet above mean sea level. Since 1913 all of the deeds have referred to, and established, the boundary lines between the properties of Neponset and the trust as "the high water mark of Willett Pond.”
1. Neponset first contends that the defendant’s pipe encroaches on its land.1 Since the boundary between the *38two parcels has remained fixed since 1913 as “the high water mark of Willett Pond” there is no apparent disagreement between the parties that in order to settle this question the judge needed to determine how the high water mark at the dam site would be fixed, and, once that formula was ascertained, to locate where the mark would fall on the ground between the parcels.
The authority in Massachusetts on how high water is to be determined in an artificial water course or a nontidal stream is sparse. The decision in Brady v. Blackinton, 113 Mass. 238 (1873), provides a standard for fixing the high water mark of an artificial body of water in these terms2: “The 'high water mark’ means the highest point to which the dam will raise the water in the ordinary state of the stream.” 113 Mass. at 245. The continued vitality of the standard established in this case is seen both by its application (in another context) in Weinstein v. Lake Pearl Park, Inc., 347 Mass. 91, 94 (1964), and by the fact that other courts, and at least one commentator on the subject, have defined high water in substantially similar terms. Thus, in Morrison v. First Natl. Bank, 88 Me. 155, 159 (1895), the Supreme Judicial Court of Maine defined the term “high water mark” when applied to a nontidal river as the highest level reached by the water when the river is unaffected by freshets and contains its natural and usual flow, and in Belmont v. Umpqua Sand & Gravel, Inc., 273 Or. 581 (1975), the Oregon Supreme *39Court defined the term as " 'the point to which the water usually rises, in an ordinary season of high water ....’” 273 Of. at 590 n.12. Compare Frankel, Seashore Waters and Water Courses; Maine and Massachusetts 46 (1969), and cases cited. Neither party seriously questions the use of these standards to resolve their dispute. But Neponset contends that the judge’s interpretation and application of the test to the facts in the case constituted error.
The evidence before the judge as to the placement of the high water mark at the dam site is best characterized as conflicting and confusing. The net result of the proofs was to place the mark in a range between a low of 137.4 feet and a high of 141.48 feet. The judge found as a fact that high water at the dam site was 140.68 feet, the height of the dam’s abutments with the flashboards in place. Despite evidence which would have warranted a contrary finding, we do not consider the judge’s conclusion to be clearly erroneous. It was supported by evidence that water spilled over the abutments and flashboards at various heights depending on the weather conditions and the season of the year; by evidence that the highest level at which the water could be maintained in the pond without spilling over the abutments was 140.68 feet; and by testimony that the purpose of the dam was to impound the water in the pond, that is, to confine the water in such a way as to create and maintain an artificial reservoir.3 Especially significant in buttressing the judge’s conclusion was evidence that about the time the dam was constructed in 1913 the high water mark at the site of the dam was placed at a point two feet above the flow of its wasteway, or at 137.4 feet. The latter figure was reconciled to comport with the judge’s finding of 140.68 feet as noted in the margin.4 The dam’s purpose and the profile *40and plan of the dam at the time it was constructed, coupled with testimony that water was usually maintained within the pond, barring unusual weather conditions such as spring freshets, heavy rains or the need to add water to the river’s flow, were significant signposts that warranted the conclusion that high water at the dam site was 140.68 feet.
This then left the question whether the perimeter of the pond would fall between the parcels of the parties thereby creating the boundary line. On this point the judge ruled that "it is impossible on the evidence ... to determine precisely where the boundary line is [and as a result] the plaintiff has not sustained its burden of proof that the concrete headwall and pipes encroach” on its land. This ruling also finds support in the record. Testimony indicated that in the course of construction of the drainage system within the subdivision fill was added and the natural contour of the land at, or near, the point where the parcels abutted was altered. This left Neponset in a position where it could not depict the natural contour of the defendant’s land (either now or in 1913) in a way that would support an accurate finding on the point where the water would fall on the land when the level of the pond reached 140.68 feet at the dam site. The nebulousness of the proof was illustrated by the testimony of one of Neponset’s experts who made an attempt to locate the line precisely. The engineer admitted that his method of measurement was inaccurate and that his placement of the line was subject to a four-foot margin of error on either side.5 In view of the fact that the defendant’s drain*41age pipe, if it trespassed at all, did so only slightly, we cannot say, based on the evidence just summarized and upon a review of the entire record, that the judge’s conclusion that the line could not be located with any degree of accuracy without an independent survey was wrong.
2. Neponset also contends that the trust had collected surface waters from its land (and the parcels that the trust had conveyed out) into an artificial channel (the drainage pipe) and caused the water to discharge onto the plaintiffs land. See Jackman v. Arlington Mills, 137 Mass. 277 (1884) (a landowner "has no right to subject the land of another to a servitude of running water to which it is not naturally subject”). 137 Mass. at 283. See also Manning v. Woodlawn Cemetery Corp., 245 Mass. 250, 251 (1923); Fortier v. H.P. Hood & Sons, 307 Mass. 292, 296 (1940); Miller v. Darby, 336 Mass. 243, 246 (1957); Chesarone v. Pinewood Builders, Inc., 345 Mass. 236, 240 (1962); Tucker v. Badoian, 376 Mass. 907, 913-914 (1978). The trust maintained that the drainage pipe was laid out in a natural- watercourse, thereby making the artificial channeling rules inapplicable. See Fitzgerald v. Fortier, 292 Mass. 268, 273-274 (1935). The judge concluded that “the evidence falls short of establishing a natural watercourse in this location,” but she determined that the case was not an appropriate one for injunctive relief. The denial of relief was predicated on a finding that much, if not all, the water coming through the drainage pipe would reach Neponset’s land in any event by way of the natural flow of surface water off the trust’s land. We also find no error in this conclusion. Testimony indicated that a portion of the trust’s land in the area of the pipe was underpinned by ledge which would increase the natural flow of surface water by preventing its absorption and that the existence of the pipe with respect to lot eight where it was located *42did not substantially change the quantity of water that had previously reached the pond. The évidence of the degree of pollution, if any, caused by the water coming through the pipe was inconclusive. Keeping in mind that the trust’s land was encompassed on three sides by the pond, the thrust of the evidence was to the effect that the drainage caused by the presence of the pipe was not substantially more than what would flow from the subdivision into the pond in the process of normal runoff. Thus, there may have been an artificial channel but it did not materially increase the flow of water on to Neponset’s land. This aspect of the case is governed, in our opinion, by our statement in McNamara v. Westview Bldg. Corp., 4 Mass. App. Ct. 670, 672 (1976). "As the flow of surface water onto the plaintiffs land was not materially increased by the defendant’s acts, and as it appears that the natural entrance of most, if not all, of the surface drainage from the defendant’s land onto the plaintiffs land remained the same as it had been prior to the installation of the drainage system, and that no damage to the plaintiffs land resulted from the change from natural drainage to an artificial drainage system, the plaintiff has no basis for complaint.”6 See also Kuklinska v. Maplewood Homes, Inc., 336 Mass. 489, 493-494 (1957); 5 Powell, Real Property pars. 730-731 (Rohan rev. ed. 1977).
Judgment affirmed.