Fortner v. Broadwater Conservation Dist.

09/21/2021 DA 20-0391 Case Number: DA 20-0391 IN THE SUPREME COURT OF THE STATE OF MONTANA 2021 MT 240 TRACY FORTNER and MARCY FORTNER, Petitioners and Appellants, v. FILED BROADWATER CONSERVATION DISTRICT, SEP 21 2021 Bowen Greenwood Clerk of Supreme Court State of Montana Respondent and Appellee. APPEAL FROM: District Court of the First Judicial District, In and For the County of Broadwater, Cause No. BDV-2019-45 Honorable Michael F. McMahon, Presiding Judge COUNSEL OF RECORD: For Appellants: Hertha L. Lund, Christopher T. Scoones, Ben F. Storrnes, Lund Law, PLLC, Bozeman, Montana For Appellee: Cory J. Swanson, Broadwater County Attorney, Townsend, Montana Submitted on Briefs: July 14, 2021 Decided: September 21, 2021 Filed: Clerk Chief Justice Mike McGrath delivered the Opinion of the Court. Tracy and Marcy Fortner appeal a First Judicial District Court decision upholding a declaratory ruling by the Broadwater Conservation District determining that Montana Gulch is a "stream" subject to the regulatory provisions of The Natural Strearnbed and Land Preservation Act of 1975. We affirm. ¶2 We restate the issues on appeal as follows: Issue One.. Whether a stream that does not currently have perennial flow—but would have, absent human alterations—may be classified as a "natural, perennial-flowing stream" under § 75-7-103, MCA, subject to the jurisdiction of The Natural Streambed and Land Preservation Act of 1975. Issue Two: Whether a stream's flow prior to 1975 may be consideredfor purposes of determining whether it is a "natural, perennial-flowing stream" under § 75-7-103, MCA, subject to the jurisdiction of The Natural Streambed and Land Preservation Act of 1975. Issue Three.. Whether the Broadwater Conservation District was arbitrary and capricious in finding that, but for human mining activity, Montana Gulch would exhibit perennial surface flow throughout its course. Issue Four: Whether the Broadwater Conservation District and the District Court incorrectly considered groundwater as part of Montana Gulch. FACTUAL AND PROCEDURAL BACKGROUND In February 2017, the Broadwater Conservation District (BCD) began proceedings against Tracy and Marcy Fortner (the Fortners) for allegedly rnaking unperrnitted disturbances of the stream channel of Montana Gulch—a tributary of Confederate Gulch, which flows from the Big Belt mountains into the Missouri River. Pursuant to § 75-7-125(2), MCA, the Fortners sought a declaratory ruling that BCD did not have jurisdiction over Montana Gulch, arguing that the water body did not exhibit perennial flow 2 and was therefore not a "stream" as defined by applicable law. BCD appointed a Departrnent of Natural Resources & Conservation hydrogeologist as a hearing officer whom they instructed to "determine whether [the specified] human disruptions had the effect of a diversion, impoundment, appropriation or other human manipulation of a perennial flow of water." In October 2018, the Hearing Officer presided over a public hearing at which the BCD Supervisors were also in attendance. ¶4 In February 2019, the Hearing Officer issued a proposed declaratory order concluding that, while the upper reaches of Montana Gulch were perennial and within BCD's jurisdiction, the rest of Montana Gulch—including the location of the Fortners' disturbances—was not perennial and therefore not within BCD's jurisdiction. The proposed ruling reasoned that "Montana Gulch likely has always had a natural flow throughout its course" and that mining activity had "drastically altered" these portions of Montana Gulch. Nevertheless, the Hearing Officer concluded that "nothing in the record proves Montana Gulch flowed perennially from mouth to source prior to historic or contemporary mining" and the "lack of pre-mining records" made it "impossible to deterrnine the flow characteristics" of Montana Gulch prior to rnining activity. In light of this uncertainty, the Hearing Officer recommended finding no jurisdiction over the project area. ¶5 In its June 2019 final declaratory ruling, however, BCD declined to adopt the Hearing Officer's proposed order, instead concluding that "the record is clear that if not for hurnan activity, water would flow perennially down Montana Gulch" through the 3 Fortner project area, rendering it a "natural, perennially-flowing stream under Montana law." ¶6 The Fortners filed a petition for judicial review of BCD's final declaratory ruling. The District Court upheld the BCD ruling, determining that BCD owed no deference to the proposed findings of the Hearing Officer, that a stream that would have flowed perennially but for hurnan activity is a "natural, perennial-flowing strearn" under § 75-7-103, MCA, and that there was sufficient evidence such that BCD was not arbitrary and capricious in concluding that Montana Gulch was one such historically perennial stream. The Fortners now appeal to this Court. STANDARD OF REVIEW ¶7 Pursuant to statute, a conservation district's declaratory ruling is subject to judicial review and may be reversed or modified if: substantial rights of the appellant have been prejudiced because the ruling is: (a) in violation of constitutional or statutory provisions; (b) in excess of the statutory authority of the supervisors; (c) affected by error of law; or (d) arbitrary or capricious, characterized by abuse of discretion, or a clearly unwarranted exercise of discretion. Section 75-7-125(4), MCA. ¶8 To establish that an agency decision was arbitrary and capricious under § 75-7-125(4)(d), MCA, the challenging party must bear the burden of proving that the conservation district's decision was "random, unreasonable, or seemingly unmotivated based on the existing record." City of Livingston v. Park Conservation Dist., 2013 MT 234, ¶ 16, 371 Mont. 303, 307 P.3d 317 (internal quotation and citation omitted). Legal 4 conclusions by the conservation district and the district court are reviewed de novo for correctness. Stalowy v. Flathead Conservation Dist., 2020 MT 155, ¶ 10, 400 Mont. 266, 465 P.3d 1170; Larson v. State, 2019 MT 28, ¶ 16, 394 Mont. 167, 434 P.3d 241. ¶9 A district court "may not alter a decision merely because the record contains inconsistent evidence or evidence that rnight support a different result" and "may not substitute its judgment for that of the agency as to the weight of the evidence on questions of fact." City of Livingston, ¶ 10, Bitterroot River Protective Ass 'n v. Bitterroot Conservation Dist., 2008 MT 377, ¶ 18, 346 Mont. 507, 198 P.3d 219) (internal quotation and citation ornitted). However, courts do not "automatically defer to the agency without carefully reviewing the record and satisfying themselves that the agency has rnade a reasoned decision." Clark Fork Coal. v. Mont. Dep't of Envtl. Quality, 2008 MT 407, ¶ 21, 347 Mont. 197, 197 P.3d 482. On appeal, this Court applies the sarne standard of review when reviewing a district court's decision to affirm the agency decision. Stalowy, ¶ 8. DISCUSSION ¶10 Issue One.. Whether a stream that does not currently have perennial flow—but would have, absent human alterations—may be classified as a "natural, perennial-flowing stream" under § 75-7-103, MCA, subject to the jurisdiction of The Natural Streambed and Land Preservation Act of 1975. ¶11 The Natural Streainbed and Land Preservation Act of 1975 (Streainbed Act), codified at § 75-7-101 through 125, MCA, provides that "[i]t is the policy of the state of Montana that its natural rivers and streams and the lands and property iininediately adjacent to them within the state are to be protected and preserved in their natural or existing state and to prohibit unauthorized projects . . ." Section 75-7-102, MCA. The Streainbed Act 5 gives conservation districts jurisdiction over applicable projects within the beds or banks of streams under its jurisdiction. Section 75-7-112, MCA. A conservation district may enforce the Streambed Act on "projects on any natural perennial-flowing stream or portions thereof, including its channels." Admin R. M. 36.2.407 (1997). ¶12 A "[s]tream" is defined as "any natural, perennial-flowing stream or river, its bed, and its immediate banks . . . ." Section 75-7-103(6), MCA. Administrative Rule of Montana 36.2.402(7) (1997) defines a "[n]atural, perennial flowing stream," in turn, as "a strearn which in the absence of diversion, impoundrnent, appropriation, or extrerne drought flows continuously at all seasons of the year and during dry as well as wet years."' Similarly, "[a] district may consider a stream to flow perennially if it dries up periodically due to man-made causes, or extreme drought." Adrnin. R. M. 36.2.407(1). ¶13 The Fortners challenge the District Court's conclusion that a "natural, perennial-flowing stream" under § 75-7-103(6), MCA, rnay be one that, though it does not currently flow continuously in all seasons of the year, would have done so in the absence of prior human intervention. They argue that this provision should instead be interpreted to require the waterbody to exhibit existing perennial flow. The parties do not raise the validity of Admin. R. M. 36.2.402(7)'s interpretation of § 75-7-103(6), MCA, as requiring continuous year-round, rather than merely annual, flow. See Perennial, American Heritage Dictionary of the English Language, (3d ed. 1996) ("[2.]b. Appearing again and again; recurrent."); Mont. Trout Unlimited v. Dep't Natural Res. & Conservation, 2006 MT 72, ¶ 36, 331 Mont. 483, 133 P.3d 224 ("We evaluate whether the agency's interpretation adhered to the statutory language when determining whether the agency met" the standard for valid agency interpretations of statute under § 2-4-305(6), MCA.). We confine our analysis to the issues raised by the parties here. 6 ¶14 The Fortners argue that BCD misapplied this Court's ruling in Bitterroot when BCD stated that it had "examined 'the nature and extent of man's impact' upon the stream . . . and determined 'the stream would otherwise flow continuously' but for human alteration. (Quoting Bitterroot, ¶¶ 39-40.) The Fortners contend that nothing in Bitterroot allows a conservation district to find jurisdiction over a stream which does not currently flow perennially. ¶15 Indeed, it was undisputed in Bitterroot that the water body at issue, the Mitchell Slough, exhibited perennial flow at the time of the case. The key legal issue stemrned from the fact that most of the Mitchell Slough's water was derived frorn an artificial diversion of the Bitterroot River. Bitterroot, ¶ 45. The Bitterroot Court rejected the idea that the Streambed Act's use of the word "natural" necessarily "exclude[s] strearns with any human influence" frorn its jurisdiction. Stalowy, ¶ 22 (citing Bitterroot, ¶4ll 34, 37) (emphasis in original). Instead, the Bitterroot Court focused on the "nature and extent of man' s impact" on the waterway. Bitterroot, ¶ 40. The Bitterroot Court specifically declined to analogize its holding to one irnplicated by Admin. R. M. 36.2.402(7), which it found "provides protection for the strearn which runs dry, if the strearn would otherwise flow continuously," absent the specified human interventions. Bitterroot, ¶ 39. Thus, Bitterroot is of limited applicability here, where it is alleged that Montana Gulch ran dry but would otherwise flow continuously, but for human intervention. ¶16 The Fortners' preferred approach essentially requires a stream to currently be both "natural" and "perennial-flowing," such that Montana Gulch's current undisputed lack of perennial flow along the relevant portions of its course would end the jurisdictional inquiry. 7 However, the statutory language simply grants jurisdiction over any "natural, perennial-flowing stream"; it does not require a stream that is "natural and perennial-flowing." In matters of statutory interpretation, we read statutes in the context of their entirety and do not insert what the Legislature has ornitted. See §§ 1-2-101, -106, MCA. Here, the Legislature clearly placed the word "natural" in a position to rnodify the term "perennial-flowing," requiring the entire phrase to be read in continuity, not as two independent jurisdictional requirements. ¶17 BCD and the District Court interpreted the term "natural, perennial-flowing strearn" as a whole, concluding that it could encompass a stream that does not currently exhibit perennial flow, but would have done so absent hurnan manipulation. The court relied on Admin. R. M. 36.2.402(7), which defines a "natural, perennial-flowing stream" as "a stream which in the absence of diversion, impoundment, appropriation, or extreme drought flows continuously at all seasons of the year and during dry as well as wet years" and on Admin. R. M. 36.2.407(iv), which provides that a "[conservation] district may consider a stream to flow perennially if it dries up periodically due to man-made causes, or extreme drought." Admin. R. M. 36.2.402(7) "provides protection for the stream which runs dry, if the strearn would otherwise flow continuously," absent the specified hurnan interventions . Bitterroot, ¶ 39. ¶18 The Fortners argue that Admin. R. M. 36.2.402(7) does not apply here, contending that human mining activity allegedly driving surface water underground is not a "diversion, impoundment, [or] appropriation." It is not apparent to us that mining activity that impacts a watercourse could never constitute a "diversion, impoundment, [or] appropriation." 8 Regardless, Adrnin. R. M. 36.2.407 allows a stream to be considered perennially-flowing "if it dries up periodically due to man-made causes." A stream that would have flowed perennially, but for human mining activity, falls squarely within the language of this Rule. ¶19 This interpretation is consistent with relevant caselaw on the rnatter. In Paulson v. Flathead Conservation Dist., we reviewed an arbitration decision over whether the Flathead County Lakeshore Protection Program (Lakeshore Program), the Flathead Conservation District, or both, had jurisdiction over Flathead Lake, which, due to an artificial impoundment, sits over what was once the Swan River. 2004 MT 136, 321 Mont. 364, 91 P.3d 569. Notwithstanding application of the Lakeshore Prograrn over Flathead Lake, we affirmed the viability of concurrent Streambed Act jurisdiction. Relevant here, the Paulson Court noted that the conservation district's jurisdiction could continue to exist "where a river once flowed before lake waters were expanded as a result of construction of a dam." Paulson, ¶ 28. This reasoning necessarily accepted the premise that, as a legal matter, a "natural, perennial-flowing strearn" may be a waterbody that, due to human activity, is hydrologically no longer a "perennial-flowing stream." ¶20 Our recent decision in Stalowy is even rnore on point. In Stalowy, evidence supported the deterrnination that North Bear Creek had historically exhibited natural, continuous surface flow. Stalowy, ¶ 7. However, its surface flow had becorne intermittent as a result of recent human diversion and appropriation, though subsurface flow continued. Stalowy, ¶ 7. We upheld the conservation district's finding of jurisdiction in the "lirnited factual circumstances" where "groundwater flowing through North Bear Creek's historical channel" supported a finding of jurisdiction based on the conclusion that "human activities 9 have caused North Bear Creek to run dry during summer months." Stalowy, ¶ 29. These factual circurnstances are applicable here, where it is alleged that huinan mining activity has caused Montana Gulch to lose its perennial surface flow. ¶21 Finally, we note that the Streainbed Act was intended to "protect the use of water for any useful or beneficial purpose as guaranteed by The Constitution of the State of Montana" and to fulfill the constitutional directive to "prevent unreasonable depletion and degradation of natural resources." Section 75-7-102(1-2), MCA; Mont. Const. art. IX, § 1(3); Bitterroot, ¶ 45. An interpretation of the Streainbed Act's jurisdictional threshold that allowed for its evasion by depleting the resource to the point where the stream's surface flow is no longer perennial would be clearly at odds with this purpose. See § 1-2-102, MCA (providing that "the intention of the legislature is to be pursued if possible" when interpreting a statute). Thus, BCD and the District Court did not err in determining that Montana Gulch could be classified as a "natural, perennial-flowing stream" under the jurisdiction of the Streambed Act upon a finding that it would have flowed perennially without hurnan activity.2 2 The Fortners also dispute BCD's contention that the Hearing Officer was required to comply with BCD's directive to use the legal standard for a "natural, perennial-flowing stream" provided by BCD. However, they do not challenge the District Court's conclusion that the BCD Supervisors, who attended the hearing, owed no deference to the proposed findings of its Hearing Officer. Whether the Hearing Officer was bound to use the legal standard provided to him by BCD is therefore irrelevant to the present dispute regarding the final declaratory ruling issued by the BCD Supervisors. The Fortners' only real argurnent on the issue is that the Hearing Officer's proposed declaratory order should be adopted because it was supported by "unrefuted expert testimony." The evidence supporting BCD's factual determination is addressed elsewhere in this Opinion. 10 ¶22 Issue Two.. Whether a stream's flow prior to 1975 may be considered for purposes of determining whether it is a "natural, perennial-flowing stream" under § 75-7-103, MCA, subject to the jurisdiction of The Natural Streambed and Land Preservation Act of 1975. ¶23 The Fortners argue in the alternative that, even if a lack of current perennial flow, alone, does not preclude Streambed Act jurisdiction, the strearn must have been flowing perennially as of 1975, the year of the Streambed Act's enactment, for jurisdiction to attach to a currently non-perennial stream. The Fortners draw this conclusion from the following discussion in Bitterroot: When passing the 310 Law [(Streambed Act)], the Legislature recognized rnan's impact, both past and future, upon the State's waters, requiring that rivers and strearns "are to be protected and preserved to be available in their natural, or existing state, and to prohibit unauthorized projects . . . ." Section 2, Chap. 463, L. 1975. The bill's title stated it was for "An Act to provide for a policy of preserving the natural or existing shape, forrn and course of strearns to activities of private persons or organizations . . . ." The 310 Law thus contemplated protection of the "existing shape, form and course" of waters, even if those waters were no longer purely "natural." The "existing" state of affairs when the 310 Law was passed in 1975 was that the East Fork of the Bitterroot had already been heavily manipulated in order to convey water to Tucker Headgate, which was then diverting water into the quarter- mile dug channel leading to the Mitchell Slough. Looking ahead to future impacts, the 310 Law required stream "projects"—physical alterations or modifications—to be pre-authorized by a conservation district. Section 75-7-103(5) -111, -112, MCA. The Tucker Headgate is precisely the kind of strearn alteration which would be subject to review and approval under the 310 Law. Bitterroot, ¶ 37 (emphasis added, omission in original). ¶24 In context, the passage demonstrates only that the legislative purpose to protect either the natural or existing state of affairs—at a time when the majority of Montana's waterways had already been subjected to some form of hurnan modification—informed our central holding in Bitterroot that Streambed Act jurisdiction may, under certain 11 circurnstances, extend to waterways that are not, strictly speaking, "natural" in origin. The effect ofBitterroot was not to replace the Streambed Act's purpose of protecting waterways in their "natural" state with one for protecting only "existing" states; rather, it was to recognize both purposes. Nothing in this passage, or the relevant regulatory or statutory text, suggests that a conservation district rnay not look to the effect of pre-1975 human activity on a waterway's natural flow characteristics. Therefore, BCD did not err in examining historical evidence when determining whether Montana Gulch, notwithstanding its current intermittent surface flow, would have flowed perennially in the absence of human activity. ¶25 Issue Three: Whether the Broadwater Conservation District was arbitrary and capricious in finding that, but for human mining activity, Montana Gulch would exhibit perennial surface flow throughout its course. ¶26 The Fortners argue that, even if BCD's legal standard was correct, BCD's factual finding that Montana Gulch would have flowed perennially in its unaltered state was arbitrary and capricious. They detail evidence in the record, particularly the testimony of their expert, Robin McCulloch (McCulloch), supporting the contention that Montana Gulch's surface flow had likely always been intermittent and that its surface flow is driven underground by natural geology, not mining activity. ¶27 However, the mere presence of evidence in the record that could have supported the Fortners' position is not the relevant inquiry on appeal. See City ofLivingston,¶ 10 (district court "may not alter a decision merely because the record contains inconsistent evidence or evidence that might support a different result"). Rather, the Fortners must bear the burden of proving BCD's decision was "random, unreasonable, or seemingly unmotivated 12 based on the existing record" without asking us to substitute our "judgment for that of the agency as to the weight of the evidence." City of Livingston, ¶ 10 (quotation omitted); Bitterroot, ¶ 18 (quotation ornitted). ¶28 The parties do not dispute that Montana Gulch, in its current state, begins as a perennial stream and gains water throughout its course. They also agree that it loses year-round surface flow in its middle and lower sections. Additionally, it is undisputed that Montana Gulch has been altered by mining activity stretching back to the nineteenth century, though the parties disagree as to the extent and significance of these efforts. ¶29 However, evidence presented to BCD regarding Montana Gulch's historic flow was mixed. One sworn statement described regularly finding Montana Gulch with enough flow to water sheep in June and September, dating back to 1965.3 In contrast, a letter frorn a former drilling company employee described being unable to find sufficient water to place a pump while conducting drill work in the area in the 1990s while a letter from a former project manager stated "no flowing surface water was present in summer or fall seasons" and that no perennial flow was "observed during the period from 1989 to 1996." The Fortners pointed out that, as far back as 1886, the United States Geologic Survey had classified Montana Gulch as a non-perennial stream. ¶30 Similarly, evidence—primarily in the form of McCulloch's report and subsequent testirnony—was mixed on the disputed question of whether hurnan rnining activity or 3 The Fortners appear to question the credibility of this affiant by noting his connections with BCD and otherwise challenge the value of his testimony. However, questions of credibility and weighing of evidence are for the factfinder, rather than this Court on appeal, to consider. See Bitterroot, ¶ 18. 13 natural geology was responsible for the current lack of year-round surface flow in Montana Gulch. McCulloch's report stated that Montana Gulch is "very likely to have always been an intermittent stream as determined by the geology" and blamed fractured and porous bedrock for allowing water to sink into the ground. However, McCulloch's report went on to state that "surface flows became intermittent largely because offormer mining activity," noting that the channel had been diverted rnany years prior. (Emphasis added.) ¶3 1 McCulloch provided testimony during the hearing where he downplayed the relative significance of rnining activity described in his report. However, as the District Court noted, this testirnony took place after the legal significance of the irnpacts of mining activity had been highlighted at the hearing, raising credibility questions. ¶32 McCulloch's report also identified potential mechanisrns by which hurnan mining activity could have eliminated Montana Gulch's surface flows. First, the report highlighted the role that Montana Gulch's natural clay layer—which was present in the upper regions but absent further downstream—played in sealing water on the surface. McCulloch's report acknowledged that rnining activity had irnpacted this area and he testified that Tracy Fortner himself "had dug down to bedrock." As the District Court pointed out, it would not have been unreasonable for BCD to conclude that hurnan mining activity had disturbed Montana Gulch's natural clay layer, thereby allowing the water to sink to fractured and porous bedrock below. Similarly, McCulloch's report described how Montana Gulch showed evidence of a mining sequence in which "the water below the [mine] workings flowed through the coarse rock filter that was created during the operation" and how the highly porous "valley fill" used as reclamation material absorbed water: "The existing 14 flows are exposed on bedrock but as soon as the valley fill is encountered the water goes underground." (Ernphasis added.) Thus, it was reasonable to conclude that the presence of a coarse rock filter and valley fill due to mining activity in Montana Gulch was responsible for the watercourse's journey underground. ¶33 In attempting to determine why Montana Gulch loses year-round surface flow after leaving its headwaters region, despite generally exhibiting increasing flow as it moves downstream, it was within the purview of BCD to assess the credibility of the witnesses and affiants and "reasonably reconcil[e]" the conflicting evidence in reaching a decision. See City of Livingston, ¶ 16. Notwithstanding the presence of evidence that could have supported a different conclusion, BCD's determination that hurnan mining activity, rather than natural geology, is responsible for the lack of perennial flow on Montana Gulch is supported by sufficient evidence and the Fortners have not shown that BCD's finding was "randoin, unreasonable, or seemingly unmotivated based on the existing record." City of Livingston, ¶ 16 (quotation oinitted). BCD's deterinination that Montana Gulch would have flowed perennially in its natural state, and is, therefore, under the Streambed Act's jurisdiction, is not arbitrary and capricious. ¶34 Issue Four: Whether the Broadwater Conservation District and the District Court incorrectly considered groundwater as part of Montana Gulch. ¶35 The Fortners contend that the District Court and BCD erred in considering groundwater when considering whether Montana Gulch was a "stream" under Streainbed Act jurisdiction. BCD found that Montana Gulch, though intermittent in places, increased in flow as it inoved downstreain, "indicating possible additional groundwater or tributary 15 sources." Though McCulloch's report dismissed the importance of this increasing flow as attributable to a concentration of groundwater, BCD concluded that "[a]11 of these waters must be considered in deterrnining" whether Montana Gulch is a "natural, perennial-flowing stream." ¶36 Similarly, the District Court pointed to the sarne increase in flow when responding to the contention in McCulloch's report that Montana Gulch lacked sufficient water storage capacity in its headwaters region to have ever supported perennial flows. The District Court concluded that the growing strength of Montana Gulch's flow suggested that other sources, including groundwater and tributaries, could have nourished a perennial flow prior to mining activity, even absent substantial holding capacity at the headwaters. ¶37 We note that nothing in the statutory definition of "stream" appears to explicitly exclude an underground waterway, and that the connection between groundwater sources and associated surface flow can certainly have legal significance. See § 75-7-103(6), MCA (defining "stream" as "any natural, perennial-flowing stream or river, its bed, and its immediate banks"); e.g., Trout Unlimited, TT 35-44 (holding that statutory moratorium on processing of water right claims for groundwater that is "immediately or directly connected to surface water" included groundwater drilling that intercepted groundwater flowing into the surface water and that induced surface water infiltration). Moreover, neither BCD nor the District Court concluded that groundwater, alone, constituted a "strearn" under the Strearnbed Act. Rather, they both simply acknowledged the uncontroversial fact that the water of a surface stream often originates as groundwater, as may have been the case in Montana Gulch. BCD did not exceed statutory bounds in finding this supported the 16 conclusion that Montana Gulch's flow was fed by robust sources and therefore capable of flowing perennially, in the absence of hurnan activity driving it underground. ¶38 Finally, the references to groundwater by BCD and the District Court here comport with our holding in Stalowy, where we held that the presence of groundwater flowing under a historic streambed was a relevant consideration in finding that a waterway's loss of perennial surface flow was due to hurnan activity and that Streambed Act jurisdiction could attach. Stalowy, ¶ 23 ("Given the impact of historic human manipulation . . ., the [conservation] [d]istrict did not err by considering the subsurface flow when rnaking its jurisdictional deterrnination."). The Fortners seek to distinguish Stalowy by contending that it is lirnited to cases where it has already been established that human activity has driven surface flow underground. Even if this seemingly circular argument were true, it is negated by BCD's reasoned determination here that Montana Gulch was indeed driven underground by hurnan activity, as discussed above. Neither BCD nor the District Court erred in considering the relevance of potential groundwater sources along Montana Gulch when determining whether it was classifiable as a "natural, perennial-flowing strearn" subject to Streambed Act jurisdiction under § 75-7-103, MCA. CONCLUSION ¶39 The District Court and BCD did not err in concluding that a stream that does not currently exhibit perennial flow, but would have in the absence of human manipulation, may be classified as a "natural, perennial-flowing" stream subject to the Streambed Act. Neither did BCD exceed its statutory authority in considering natural flows and human alterations prior to the Streambed Act's enactrnent in 1975. BCD was not arbitrary and 17 capricious in its factual finding that, but for human rnining activity, Montana Gulch would have flowed perennially to this day. Finally, the District Court and BCD did not err in its consideration of subsurface flows in Montana Gulch. BCD's finding of jurisdiction was properly upheld by the District Court. ¶40 Affirmed. Chief Jus ice We Concur: e94 A ore:".~ 341 18 Justice Jirn Rice, concurring. 1141 Appellants introduced significant evidence that the middle section of Montana Gulch was intermittent primarily by reason of geology, and not mining activity. However, I agree with the Court's holding that, as a matter of law, "[n]otwithstanding the presence of evidence that could have supported a different conclusion," Opinion, ¶ 33, the applicable standards of appellate review require that we affirm the agency's contrary factual conclusion when it is supported by sufficient evidence, as here. ¶42 I would offer a word about the agency's actions in this proceeding. Although the BCD appointed an examiner to conduct the hearing and rnake proposed factual determinations, the supervisors personally went on the site visits, sat through the hearing and listened to all witness testimony, and even filed a post-hearing brief with the hearing examiner instructing him, in the words of their own counsel, "how he should interpret the Streambed Act." My advice to the supervisors: stay in your lane. If you determine to appoint a hearing examiner, then let the examiner do the appointed task without interference. If you just can't let it go, then conduct the proceeding yourselves. 19