Brock Maslonka, et ux v. Public Utility District No. 1 of Pend Oreille County ( 2022 )


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  •                                                                           FILED
    MARCH 3, 2022
    In the Office of the Clerk of Court
    WA State Court of Appeals, Division III
    IN THE COURT OF APPEALS OF THE STATE OF WASHINGTON
    DIVISION THREE
    BROCK MASLONKA and DIANE                      )
    MASLONKA, a marital community,                )         No. 37747-4-III
    )
    Appellants,              )
    )
    v.                                     )
    )         PUBLISHED OPINION
    PUBLIC UTILITY DISTRICT NO. 1 OF              )
    PEND OREILLE COUNTY; and PORT                 )
    OF PEND OREILLE,                              )
    )
    Respondents.             )
    STAAB, J. — Public Utility District Number 1 (PUD) of Pend Oreille County owns
    and operates a dam that causes occasional flooding. Brock and Diane Maslonka own two
    parcels of agricultural land, one of which abuts the Pend Oreille River. The Maslonkas
    sued to enjoin future flooding and for compensation from past flooding. On summary
    judgment, the superior court declared a prescriptive easement in favor of the PUD to
    flood the Maslonkas’ property. It dismissed the Maslonkas’ damages claims for multiple
    reasons, including statute of limitations, public duty doctrine as a defense to negligence,
    and the subsequent purchaser rule as a defense to inverse condemnation. The Maslonkas
    appeal.
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    Although we conclude that a claim for prescriptive easement can be resolved on
    summary judgment with clear and convincing evidence, we recognize that proving the
    element of continuous and uninterrupted use is highly fact-specific. In this case, the PUD
    failed to demonstrate as a matter of law that it had continuously flooded the Maslonkas’
    property up to an identified level for a specific 10-year period. For similar reasons, we
    conclude that the PUD failed to prove the defense of subsequent purchaser rule sufficient
    to bar the Maslonkas’ claim for inverse condemnation. The PUD’s evidence does not
    clearly demonstrate that the PUD caused permanent damage to the Maslonkas’ property
    above the express easement prior to 1993 when the Maslonkas purchased their property.
    We therefore reverse dismissal of the Maslonkas’ claims for inverse
    condemnation, trespass, and nuisance as to Parcel 2. We affirm summary judgment on
    all claims related to Parcel 1 on the alternative grounds that the Maslonkas have failed to
    present sufficient evidence to raise a genuine issue of material fact.
    BACKGROUND
    A. FACTUAL HISTORY
    1. The Maslonkas (servient estate)
    Brock and Diane Maslonka own 535 acres of farm and pasture land near Cusick,
    in central Pend Oreille County. The Maslonkas purchased the property in 1993. For
    purposes of this case, the parties refer to the property as Parcel 1 and Parcel 2. The
    2
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    Maslonka, et al v. PUD No. 1, et al
    following image is taken from the County’s GIS1 database and is a reproduction of
    Clerk’s Papers (CP) at 130.
    The Pend Oreille River forms the
    eastern border of Parcel 2. The Maslonkas’
    property abuts the river for approximately a
    mile. When purchasing the property in 1993,
    Mr. Maslonka was aware that the lower portion
    of Parcel 2 flooded periodically.
    When the water is high for a day or two,
    it has little impact, but it has a substantial
    negative impact on Mr. Maslonka’s farming operations when it is high for a month or
    two. According to Mr. Maslonka, the flooding that occurred when he purchased the
    property was of the former character. He contends that since about 1999, the flooding
    has increasingly taken on the latter character. He believes that the cause of this increased
    frequency and duration of flooding is the result of changes in the PUD’s operations
    following an amendment to its license in 1999, granted by the Federal Energy Regulatory
    Commission (FERC). The history of that license amendment is detailed below in our
    discussion of the Tribal Litigation.
    1
    Geographic information system.
    3
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    Maslonka, et al v. PUD No. 1, et al
    2. Perkins Slough Diking Improvements
    Perkins Slough runs through Parcel 1. Similar to Parcel 2, Parcel 1 has also
    developed a flooding problem. Mr. Maslonka believes that the cause of this flooding is a
    defect in diking improvements, allowing the Pend Oreille River to flow onto Parcel 1.
    Mr. Maslonka believes that the PUD’s responsibility is to maintain these improvements
    in proper working order.
    The slough’s water levels are kept in check by a culvert and gate that lead to the
    river. The lines running diagonally through the image on the previous page are railroad
    tracks owned by the Port of Pend Oreille. The tracks sit atop an elevated embankment.
    The Perkins Slough culvert runs under this embankment and terminates at a gate installed
    on the river side of the embankment.
    This image is the culvert gate on the river
    side of Perkins Slough, copied from CP at 397.
    When the river floods its banks, the gate
    is closed and the railroad embankment acts as an
    earthen dam or dike, keeping the river from
    flooding Parcel 1. When the river recedes, the
    gate is opened and a pump is activated, allowing
    water to drain out of the slough and into the
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    Maslonka, et al v. PUD No. 1, et al
    river. Water accumulates naturally in the slough from precipitation and the river’s
    tributaries (specifically Trimble Creek); thus, the need to drain the slough.
    The culvert was initially installed by the Idaho and Washington Northern Railroad,
    the predecessor of the current owner, Port of Pend Oreille. In 1909, Diking District No. 1
    of Pend Oreille County installed a gate at the end of the culvert. Throughout the early
    1900s, the diking improvements benefitting Perkins Slough were operated by the Diking
    District.2
    In 1962, the railroad replaced the culvert. At that same time, the PUD replaced the
    gate and installed a pumping station. In 1963, the PUD entered an agreement with the
    Diking District, and the PUD assumed responsibility for both operating and maintaining
    the gate and pump. Absent from that document is any responsibility for maintaining the
    culvert, which was owned and installed by the railroad.
    The PUD assumed responsibility for maintaining many of the diking
    improvements along the river because its federal “license requires that project operations
    not add or cause flooding in the diking districts.” CP at 673. For a long time, the Diking
    District still operated the gate, while the PUD handled maintenance. During some
    periods, the Diking District operated the gate to impound water, which could then be
    diverted for irrigation.
    5
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    In 2008, the PUD entered into another agreement with the Diking District. This
    agreement superseded the 1963 agreement. Again, this agreement obligated the PUD to
    maintain and operate the gate, but explicitly disclaimed any obligation for “replacement
    or repair to the culvert.” CP at 324. The agreement details when the gate is supposed to
    be raised and lowered and also obligates the PUD to “use its best efforts” to
    accommodate any requested variances to facilitate “specific agricultural needs.” CP at
    324, 325. For years, Mr. Maslonka served as a commissioner on the Diking District. Mr.
    Maslonka signed the 2008 agreement in his capacity as a Diking District Commissioner.
    In 2015, the Diking District voted to disband. In 2016, Pend Oreille County
    accepted the Diking District’s vote to suspend operations. Upon disbanding, the County
    took over the Diking District’s statutory obligations, as required by RCW 85.38.220.3
    3. Box Canyon Dam (dominant estate)
    In 1955, the PUD completed construction of the Box Canyon Dam on the Pend
    Oreille River. The dam is located approximately 32 miles downriver (North) of the
    2
    Two other diking districts also exist in the area, managing culverts, gates, and
    pumps along other areas of the river. Diking districts are organized under chapter 85.05
    RCW.
    3
    “No special district that owns drainage or flood control improvements may be
    suspended unless the legislative authority of a county accepts responsibility for operation
    and maintenance of the improvements during the suspension period.”
    6
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    Maslonkas, near Ione. The dam produces about 50-55 MW4 per hour, year-round. The
    purpose of the dam is to generate low-cost electricity for customers.
    Box Canyon Dam is considered a “run of the river” (ROR) dam. A dam is
    considered ROR if it stores little or no water. ROR dams attempt to maintain relatively
    similar flow rates upstream and downstream. What little water these dams do store is
    called pondage. Pondage allows ROR dams to balance hourly load fluctuations. While
    the pondage is much smaller than the reservoirs maintained by some reclamation
    projects, such as the Grand Coulee,5 the pondage still affects substantial acreage.
    According to FERC, Box Canyon’s reservoir covers between 7,000 and 9,000 acres of
    surface area.
    Because ROR dams store little or no water, their ability to generate electricity is
    subject to seasonal variations in flow rates. To firm up the supply of electricity, ROR
    dams are often built in conjunction with larger reservoir dams. In this instance, Albeni
    Falls Dam, 55.7 miles upriver (SE) from Box Canyon Dam, impounds the waters of Lake
    Pend Oreille. By storing water year-round, Albeni Falls is able to maintain minimum
    flow rates on the Pend Oreille River, which allows Box Canyon and other downriver
    ROR dams to generate electricity year-round.
    4
    Megawatt.
    5
    Some of the Northwest’s better known ROR dams include: Bonneville, Chief
    Joseph, The Dalles, John Day, and McNary. Despite being ROR, these dams are each
    able to generate over 1,000 MW of power.
    7
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    The United States Army Corps of Engineers operates Albeni Falls Dam. While
    the PUD has no authority over Albeni Falls Dam, the dams’ operators communicate
    regularly, coordinating operations daily. According to FERC, it takes anywhere from 1.7
    days to 34 days for water leaving Albeni Falls to reach Box Canyon, depending on
    velocities. The dam operators communicate so that the PUD can accurately plan how
    much electricity it can generate and accurately adjust its operations to stay within the
    parameters of its FERC license.
    In its natural state, the Pend Oreille River’s high water mark is 2028 feet above sea
    level.6 The dam gives the PUD the ability to raise the river’s upriver high water mark
    significantly higher than 2028 feet. The difference between the natural high water mark
    and the artificial high water mark created by the dam is referred to as the dam’s
    “backwater effect.” Disregarding the high flow months (May–July), the dam causes
    approximately 6-8 feet of backwater.
    In other words, during times when the river would naturally submerge lands up to
    2022 feet, the dam will submerge additional land up to 2028–2030 feet.
    However, this effect is not uniform throughout the project’s boundaries (i.e., the
    land between the Albeni Falls Dam and Box Canyon Dam). Box Canyon Dam causes
    6
    Elevation references are to the measurements taken at the gauge in Cusick. The
    PUD’s license from FERC and the PUD’s easement with the Maslonkas both use the
    Cusick gauge as the reference point for monitoring the dam’s backwater effect on the
    river.
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    Maslonka, et al v. PUD No. 1, et al
    significantly higher water levels at the Box Canyon end of the dam than at the Albeni
    Falls end. But, where the Maslonkas are, 6-8 feet is a close estimate.
    4. Easements
    Recognizing that the dam submerges land that would normally be above water, the
    PUD promised to compensate land owners for flooding and damage to their lands. For
    the most part, the PUD kept that promise.
    In 1955 (when construction was completed), the dam purchased a flood easement
    from the Maslonkas’ predecessors. In 1960, the PUD purchased an additional easement,
    permitting the PUD to backwater the river up to 2035.5 feet. The specific right granted
    is:
    The full perpetual right, power, privilege and easement to intermittently or
    continuously overflow, flood and submerge, or to damage by wash, erosion,
    sloughage, seepage, inundation, or other cause, the above-described lands
    with waters of the Pend Oreille River and its tributaries, all in the
    construction, operation and maintenance of the Box Canyon Dam and
    Hydroelectric Project, its appurtenances, reservoir and overflow area.
    CP at 328.
    Both parties agree that these are the only express easements covering the
    Maslonkas’ property, that they only apply to Parcel 2, and that the PUD has no express
    easement on Parcel 1.
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    5. Dam Operations
    In addition to its easement limits with surrounding property owners, the dam has
    two main constraints on its operations. Under its license granted by FERC, the dam may
    not allow more than two feet of backwater against Albeni Falls Dam, and must remove
    all spillway gates when the river reaches 2041 feet.
    Increased backwater in the tailrace of Albeni Falls decreases the ability of Albeni
    Falls to generate electricity, and the PUD pays the Army Corps for this lost power
    generation. Although the increased backwater decreases the generating capacity of
    Albeni Falls, it increases the generating capacity at Box Canyon.
    According to Mark Cleveland, the dam’s Director of Power Production and
    CR 30(b)(6) designee, “All of the water in the River is discharged through the dam in one
    of three ways:”
    (1) flows up to approximately 32,000 cfs[7] are diverted and discharged
    through the powerhouse to produce power; (2) flows between
    approximately 32,000 cfs and 70,000 cfs are discharged through both the
    powerhouse and spillway gates; or (3) for flows between 70,000 cfs to
    90,000 cfs the forebay at the dam is lowered to prevent elevation at the
    Cusick Gauge from rising above [elevation] 2041 [feet]. When flows reach
    90,000 cfs all gates are removed[8] and elevation at the Cusick Gauge is as
    if Box Canyon dam did not exist.
    7
    Cubic feet per second.
    8
    According to the PUD’s operations manual, the river may reach 2041 feet at
    flows ranging from 82,000 cfs to 90,000 cfs, depending on the backwater effect from
    Boundary Dam “and other factors.” CP at 524. Boundary is a dam owned by Seattle
    City Light, located north of Metaline Falls, downriver from Box Canyon Dam.
    10
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    CP at 115, 114, 787. According to the PUD’s operations manual, this allows the PUD “to
    maximize generation” while staying within the limits of its license set by FERC. CP at
    525.
    The dam starts to lift spillway gates at approximately 32,000 cfs because flows
    above that level “exceed powerhouse capacity.” CP at 514. If the dam did not begin
    lifting spillway gates at that level, it would not be able to “maintain reservoir outflow
    equal to the inflow.” CP at 514. At that level, the river is only at 2035.1 feet (within
    FERC’s operating limit and within the Maslonkas’ easement limit). Despite not being at
    2041 feet at flows of 32,000 cfs, the PUD starts lifting gates because if it did not it would
    not be operating as a ROR dam, as required by its FERC license, and would generate
    more than 2 feet of backwater on Albeni Falls, also in violation of its FERC license.
    At 35,000 cfs, the river reaches the PUD’s easement limits on the Maslonkas’
    property. Without the dam, the river would not reach 2035.5 feet (the easement limit)
    until flows reached 61,000 cfs. With the dam in place, the river reaches 2041 feet at
    flows between 69,000 cfs and 90,000 cfs. Without the dam, the river would not reach
    2041 feet until flows reach 90,000 cfs.
    One of the PUD’s expert witnesses, Scott Mahnken, conducted an analysis to
    determine how much of the river’s time spent above 2035.5 feet was due to the dam and
    how much was due to nature. Using the dam’s hourly readings from the Cusick gauge,
    Mr. Mahnken determined that between 1955 and 1995, the river exceeded 2035.5 feet on
    11
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    average about 12 percent of the year. According to Mr. Mahnken, that percentage would
    have been 6 percent without the dam. Thus, over 40 years the dam was responsible for
    approximately half of the instances where the river exceeded 2035.5 feet. Six percent of
    a year equals 21.9 days, which is why the parties’ briefing frequently talks about 21-22
    days of flooding per year. However, these are just averages.
    Mr. Mahnken did a more detailed look at the four years comprising 2015-2018. In
    2015, the river exceeded 2035.5 feet on 18 days. This rose to 34 days in 2016, 99 days in
    2017, and 66 days in 2018. Thus, while the total average of days above 2035.5 feet
    might be 12 percent of the year, in any given year, that percentage could be vastly
    different—as seen by 2015’s 5 percent of the year (18 days) or 2017’s 27 percent of the
    year (99 days). Mr. Mahnken attributed the large increases in 2017 and 2018 to being
    unusually wet years but did not break down how many of those days were due to nature
    and how many were due to the dam. As will become clear later in this opinion, Mr.
    Mahnken’s use of averages, instead of year-by-year breakdowns, significantly limits this
    court’s ability to resolve this appeal.
    Another significant limitation in Mr. Mahnken’s analysis is that he only looked at
    days where the river’s elevation exceeded 2035.5 feet, but not the degree of excess.
    Thus, the record contains no way for the court to determine how much of the year is spent
    at 2035.6 or 2041 feet or anywhere in between.
    12
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    B. PROCEDURAL HISTORY
    1. Tribal Litigation
    The PUD spent the entirety of the 1980s and 1990s in litigation against the
    Kalispel Indian Tribe. United States v. Pend Oreille County Pub. Util. Dist. No. 1, 
    926 F.2d 1502
     (1991) (Kalispel I); United States v. Pend Oreille County Pub. Util. Dist. No.
    1, 
    28 F.3d 1544
     (9th Cir. 1994) (Kalispel II); United States v. Pend Oreille County Pub.
    Util. Dist. No. 1, 
    135 F.3d 602
     (9th Cir. 1998) (Kalispel III). The Kalispel cases are
    tangentially relevant as the PUD cites to them briefly in its opening brief and because the
    reservation is directly across the river from the Maslonkas’ property and of similar
    character to the Maslonkas’ property. Neither party, however, alleges that the Kalispel
    cases have any collateral estoppel effect on this case. Below, the trial court granted a
    motion by the PUD to exclude consideration of the Kalispel lawsuits and settlements as
    evidence of liability. The primary purpose of detailing this history here is for additional
    background information—explaining why the PUD’s license was amended in 1999 to
    permit pondage up to 2041 feet.
    The United States, as trustee for the Kalispell Tribe, sued the PUD for flooding the
    tribe’s reservation lands:
    Prior to construction of the [Box Canyon] dam, the water level of the river
    as it passed the reservation reached approximately 2041 feet during the
    spring, receded to 2022 feet by late summer, and remained at that level
    until the following spring. After completion of the dam, the spring level
    remained at 2041 feet, but during the remaining months of the year the
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    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    water level rarely dropped below 2032 feet. Thus, because of the dam, land
    once flooded only in the spring was under water all year.
    Kalispel I, 
    926 F.2d at 1504
    . The specific cause of action brought was for trespass and
    the relief sought was both damages and injunctive relief. 
    Id. at 1504
    . The United States
    filed the lawsuit in 1980. Kalispel III, 
    135 F.3d at 606
    .
    The district court found the PUD liable for trespass following a bench trial. The
    PUD never negotiated an overflow easement with the tribe as it had with private
    landowners in the 1950s. The district court found the PUD liable for permanently
    submerging lands below 2032 feet and periodically submerging lands up to 2041 feet.
    The Ninth Circuit Court did not get into detail about the evidence submitted at trial but
    affirmed the district court’s verdict, noting that it was “well supported by the record.”
    Kalispel I, 
    926 F.2d at 1506
    .
    In Kalispel II, the Ninth Circuit Court addressed the remedy phase of the bench
    trial, which the district court had severed from the liability portion. Although Kalispel II
    ostensibly concerned damages, the PUD attempted to relitigate liability. The Ninth
    Circuit’s opinion reveals that the PUD had initially attempted to negotiate an easement
    with the tribe as it had with neighboring private land owners but that the tribe refused to
    grant an easement. Kalispel II, 
    28 F.3d at
    1547 n.2. “[T]he Utility knew it had no right
    to flood Reservation land, but flooded it anyway.” 
    Id. at 1547
    . The PUD attempted to
    argue that it had acquired a right to flood the reservation lands through inverse
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    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    condemnation; the Ninth Circuit Court rejected that argument because federal law
    prohibited the PUD from condemning tribal land without prior federal permission. 
    Id. at 1548
    .
    As to damages, the Ninth Circuit Court ruled that the district court had failed to
    adhere to federal law and applied the wrong measure of damages and remanded for the
    court to reassess damages. 
    Id. at 1550-51
    . The circuit court also ordered the lower court
    to consider whether to issue an injunction, which would prohibit the PUD from elevating
    the water level above its natural high water mark of 2028 feet, and also suggested the
    lower court issue a stay of any injunction to permit the PUD to apply for a license
    amendment to permit “occupying Reservation land.” 
    Id. at 1552
    .
    On remand, the district court awarded the tribe more than $3,000,000 in damages.
    Kalispel III, 
    135 F.3d at 606-07
    . As recommended in Kalispel II, the district court also
    “granted a permanent injunction prohibiting PUD from flooding above 2028 feet, but
    stayed the injunction to allow PUD to apply to the Commission for a license
    amendment.” Kalispel III, 
    135 F.3d at 607
    . The Ninth Circuit Court affirmed the new
    damages award, the permanent injunction, and the stay. Kalispel III, 
    135 F.3d at 615
    .
    The PUD thereafter applied for an amendment to its license, which it received in
    1999, thus ending two decades of litigation. The new license expanded the project
    boundaries to include the portions of the tribe’s lands the PUD had been flooding for
    decades, enlarged the PUD’s authority to store water up to 2041 feet, and required
    15
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    additional payments to the tribe, the federal government, and the county for erosion
    control, habitat preservation, and monitoring. Had FERC not issued the license
    amendment, it would have “force[d] the PUD to change project operations so that waters
    from the Box Canyon reservoir did not rise above elevation 2028 at Cusick, except at
    times when water would be that high naturally.” CP at 670. In other words, Box Canyon
    Dam would have been forced to cease generating electricity, except for a small portion of
    the year.
    In 1999, following resolution of its litigation with the Kalispel Tribe, the question
    arose as to whether the PUD would be responsible for similar damages to other property
    owners. In an internal memorandum, the PUD stated that it did not need to initiate
    condemnation proceedings to allow it to continue operating up to 2041 feet because the
    PUD believed it had already acquired prescriptive easements, relying instead on a policy
    of waiting for individual landowners to bring lawsuits:
    The District has not been required to institute condemnation proceedings on
    private lands along the project boundary to date because the prescriptive
    easements on these lands authorizes its use by the District and flowage
    easements were obtained in some cases through negotiations with the
    landowners. The District has no plans at this time to begin condemnation
    proceedings on any private lands along the project reservoir. The
    landowners may bring a suit against the District, if they wish. Such suit
    would be in the nature of an inverse condemnation action. The District
    would defend and claim its prescription easement if an inverse
    condemnation action were brought.
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    No. 37747-4-III
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    CP at 1409 (emphasis added). Almost 20 years after the conclusion of the Kalispel cases,
    the Maslonkas filed their lawsuit against the PUD.
    2. Complaint, Answer, and Counterclaim
    The Maslonkas filed suit against the PUD on December 9, 2016. The complaint
    seeks injunctive relief and compensation for diminution of property value and damage to
    crops under theories of unlawful takings in violation of article I, § 16 of Washington’s
    Constitution, inverse condemnation, trespass, nuisance, and negligence.
    The PUD’s answer to the complaint included a counterclaim requesting the
    declaration of a prescriptive easement. The PUD alleged its prescriptive easement vested
    “in or about 1965.” CP at 31.
    The Maslonkas also sued the Port (the current owner of the railroad embankment).
    The Port was dismissed from the case upon settling with the Maslonkas. The claims
    against the Port revolved around Parcel 1 and whose responsibility it is to maintain the
    Perkins slough culvert and diking improvements.
    3. Motion for Partial Summary Judgment
    In 2019, the PUD moved for partial summary judgment. The PUD raised four
    grounds for dismissal of the various claims: failure to state a claim, subsequent purchaser
    rule, statute of limitations, and public duty doctrine. Not every ground for dismissal
    applied to every cause of action or to both parcels.
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    No. 37747-4-III
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    On the PUD’s motion, the superior court dismissed, with prejudice, the inverse
    condemnation claim as to Parcels 1 and 2 based on the subsequent purchaser rule. The
    court dismissed the negligence claim as to Parcel 1 under the public duty doctrine. The
    court denied the rest of the PUD’s motion for summary judgment and denied the
    Maslonkas’ cross-motion for summary judgment on trespass liability.
    The PUD moved for reconsideration on the negligence claim for Parcel 2. After
    further review, the court granted reconsideration and dismissed the negligence claim as to
    Parcel 2 as barred by the statute of limitations.
    4. Second Motion for Summary Judgment
    Approximately one year later, the PUD brought a motion for full summary
    judgment. The crux of the PUD’s motion was that the Maslonkas were maintaining
    inconsistent positions. The PUD argued the trespass and nuisance claims were time
    barred, and the Maslonkas defended by arguing that the torts were ongoing. The PUD
    alternatively argued that it had acquired a prescriptive easement and the Maslonkas
    defended by arguing that the PUD had not proved continuous use. The PUD believed
    that the Maslonkas could not have it both ways: the use was continuous or it was not, but
    either way the Maslonkas’ lawsuit was procedurally barred.
    The superior court entered an order disposing of the Maslonkas’ remaining claims
    by finding that the PUD was vested with a prescriptive easement up to 2041 feet. At the
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    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    hearing where the court announced its decision, it stated that the prescriptive easement
    vested “no later than 1999” but did not explain how it reached that conclusion.
    The table below highlights the trial court’s basis for dismissing each claim,
    combining the order on partial summary judgment, order on reconsideration, and second
    order on summary judgment.
    Insufficient   Subsequent      Statute of   Public Duty   Prescriptive
    Evidence       Purchaser     Limitations    Doctrine      Easement
    P1    P2      P1     P2      P1    P2      P1     P2     P1  P2
    Condemnation     D     N/A      G      G      N/A   N/A     N/A    NA/    N/A N/A
    Trespass       D     N/A     NA/     D       D     D      N/A    N/A     G   G
    Nuisance       D     N/A     N/A     D       D     D      N/A    NA/     G   G
    Negligence      D     N/A     N/A    N/A      D     G       G      D     N/A N/A
    G = grant summary judgment to dismiss; D = denied summary judgment to
    dismiss; N/A not argued by PUD. Claims for Parcel 1 = P1 and claims for Parcel 2 = P2.
    ANALYSIS
    A. STANDARD OF REVIEWING SUMMARY JUDGMENT
    “When reviewing an order for summary judgment, the appellate court engages in
    the same inquiry as the trial court.” Mountain Park Homeowners Ass’n v. Tydings, 
    125 Wn.2d 337
    , 341, 
    883 P.2d 1383
     (1994) (citing Syrovy v. Alpine Ress, Inc., 
    122 Wn.2d 544
    , 548-49 n.3, 
    859 P.2d 51
     (1993)). “This court will affirm summary judgment if no
    genuine issue of any material fact exists and the moving party is entitled to judgment as a
    matter of law.” 
    Id.
     “All facts and reasonable inferences are considered in the light most
    favorable to the non-moving party, and all questions of law are reviewed de novo.” 
    Id.
    19
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    (citation omitted). “But a question of fact may be determined as a matter of law when
    reasonable minds can reach only one conclusion.” Miller v. Likins, 
    109 Wn. App. 140
    ,
    144, 
    34 P.3d 835
     (2001) (citing Ruff v. County of King, 
    125 Wn.2d 697
    , 
    887 P.2d 886
    (1995)). Furthermore, “[a]n order granting summary judgment may be affirmed on any
    legal basis supported by the record.” Martinez-Cuevas v. DeRuyter Bros. Dairy, Inc.,
    
    196 Wn.2d 506
    , 514, 
    475 P.3d 164
     (2020) (citing Coppernoll v. Reed, 
    155 Wn.2d 290
    ,
    296, 
    119 P.3d 318
     (2005)).
    “A nonmoving party may not defeat a motion for summary judgment by relying
    on speculation or argumentative assertions that unresolved factual issues remain.”
    Williams Place, LLC v. State, 
    187 Wn. App. 67
    , 84, 
    348 P.3d 797
     (2015) (citing White v.
    State, 
    131 Wn.2d 1
    , 9, 
    929 P.2d 396
     (1997)).
    B. PRESCRIPTIVE EASEMENT
    The Maslonkas assert that the PUD’s operation of Box Canyon Dam has caused
    flooding on their land above the express easement of 2035.5 feet. They contend that this
    flooding constitutes a taking and have filed a claim for inverse condemnation. In the
    alternative, to the extent that the flooding does not amount to a taking, they contend that
    the flooding is a trespass and nuisance.
    The PUD acknowledges that it has been flooding the Maslonkas’ land for decades.
    It contends, and the trial court agreed, that the Maslonkas’ claims for trespass and
    nuisance fail because the PUD acquired a prescriptive easement to flood above 2035.5
    20
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    feet. The trial court also dismissed the Maslonkas’ claims for inverse condemnation,
    finding that any permanent damage to the value of the Maslonkas’ property caused by the
    flooding occurred before the Maslonkas purchased their property in 1993.
    On appeal, we tackle PUD’s claim for a prescriptive easement first because the
    resolution of this issue will provide background and analysis for the other issues.
    Prescriptive easements are a common law companion to adverse possession.
    Adverse possession grants full title to real property, while a prescriptive easement grants
    only a right to use someone else’s property. “‘Prescriptive rights . . . are not favored in
    the law, since they necessarily work corresponding losses or forfeitures of the rights of
    other persons.’” Gamboa v. Clark, 
    183 Wn.2d 38
    , 43, 
    348 P.3d 1214
     (2015) (quoting
    Nw. Cities Gas Co. v. Western Fuel Co., 
    13 Wn.2d 75
    , 83, 
    123 P.2d 771
     (1942)). “To
    establish a prescriptive easement, the person claiming the easement must use another
    person’s land for a period of 10 years and show that (1) he or she used the land in an open
    and notorious manner, (2) the use was continuous or uninterrupted, (3) the use occurred
    over a uniform route, (4) the use was adverse to the landowner, and (5) the use occurred
    with the knowledge of such owner at a time when he was able in law to assert and
    enforce his rights.” 
    Id.
     (internal quotation marks omitted).
    The primary dispute in this case concerns the second element: 10 years of
    continuous and uninterrupted use. More specifically, the parties dispute the degree to
    21
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    which the law permits seasonal or intermittent use to ripen into continuous use and
    whether the facts of this case satisfy that law.
    As a preliminary matter, the Maslonkas argue that this element is always a
    question of fact that can never be decided on summary judgment. Conversely, the PUD
    argues that not only can a prescriptive easement be declared on summary judgment, but
    its burden of proof is only a preponderance of the evidence. We address these initial
    concerns before analyzing the PUD’s substantive claim for a prescriptive easement.
    Ultimately we hold that the element of continuous and uninterrupted use can be
    decided on summary judgment, but the PUD’s burden of proof is clear and convincing
    evidence. In this case, the PUD failed to meet this burden on summary judgment because
    it failed to clearly show that it had continuously flooded the Maslonkas’ property up to an
    identified level for a specific 10-year period.
    1. The Element of Continuous and Uninterrupted Use is Susceptible to Summary
    Judgment
    Quoting from Johnson v. Brown, 
    33 Wash. 588
    , 
    74 P. 677
     (1903), the Maslonkas
    argue that the “continuous or uninterrupted” use element is never susceptible to summary
    judgment. At the end of Johnson the Supreme Court stated, in relevant part: “the
    question of continuous, open, and notorious possession being a question of fact purely
    within the province of the jury to determine.” Id. at 590. The Maslonkas believe that the
    Supreme Court foreclosed summary judgment of this element based on this statement.
    22
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    This comment in Johnson is not controlling because it is dictum and has been
    rendered obsolete by subsequent court rules and precedent. Johnson was concerned with
    sufficiency of the evidence, not whether a judge could have decided the question instead
    of the jury. Thus, the court’s remark about questions of fact being the jury’s province
    was unnecessary to the court’s resolution of the lawsuit.
    Furthermore, summary judgment did not exist in 1903. At that time,
    Washington’s civil procedure included precursors to CR 12(b) and CR 50, but not CR 56.
    LAWS OF 1891, § 2, at 106; LAWS OF 1895, § 1, at 64. Summary judgment did not come
    into being until 1955, when the Supreme Court amended RPPP 19.9 46 Wn.2d at xxxvi
    (1955). Johnson cannot be read to have foreclosed a procedure that did not yet exist.
    Finally, it is well established that “when reasonable minds could reach but one
    conclusion, questions of fact may be determined as a matter of law” on summary
    judgment. Hartley v. State, 
    103 Wn.2d 768
    , 775, 
    698 P.2d 77
     (1985) (citing LaPlante v.
    State, 
    85 Wn.2d 154
    , 
    531 P.2d 299
     (1975)). The Maslonkas offer no rebuttal to this well-
    known legal standard. Accordingly, the trial court did not err in ruling that this element
    may, under the right circumstances, be decided on summary judgment.
    While we hold that the element of “continuous and uninterrupted use” can be
    decided on summary judgment, we also recognize that summary judgment will be the
    9
    Rules of Pleading Practice and Procedure. RPPP 19 was later recodified as
    RPPP 56 and became CR 56 in 1967. 71 Wn.2d at cxvii – cxix (1967).
    23
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    exception given its highly fact-specific nature. We note that almost every case discussed
    in this opinion was decided after a trial.
    2. The Burden of Proving a Prescriptive Easement is Clear and Convincing
    Washington has never had cause to decide the burden of proof for prescriptive
    easements explicitly.
    The PUD cites Hebish to argue that the burden of proof is a preponderance of the
    evidence. Resp’t’s Br. at 27 (citing Hebish v. Pac. County, 
    168 Wash. 91
    , 94, 
    10 P.2d 999
     (1932)). Hebish unequivocally states that the party seeking a prescriptive easement
    must “prove by a preponderance of the evidence their right.” 
    Id.
     But, the burden of
    proof was not actually at issue in Hebish, and the court did not explain its comment. The
    only issue in Hebish was whether specific evidence was relevant to tacking. In Hebish,
    Pacific County claimed that a public road ran through Hebish’s property via prescription.
    The strip of land at issue was 537 feet running north/south. Pacific County’s evidence
    showed that settlers had cut a trail through Hebish’s property. However, the trail was to
    the west of the easement that Pacific County was trying to establish. In other words,
    Pacific County tried to tack historical use of an abandoned trail to the west onto its
    easement claim for a new road further to the east of that abandoned trail. The trial court
    and Supreme Court both rejected Pacific County’s claim. Hebish, 
    168 Wash. at 93-94
    .
    Thus, Hebish’s stray remark about the burden of proof was dicta.
    24
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    Accordingly, this court is not bound to follow Hebish because “[s]tatements made
    in the course of the Supreme Court’s reasoning that are ‘wholly incidental’ to the basic
    decision constitute dicta and do not bind us.” State v. Hummel, 
    165 Wn. App. 749
    , 765,
    
    266 P.3d 269
     (2012); Peterson v. Hagan, 
    56 Wn.2d 48
    , 53, 
    351 P.2d 127
     (1960).
    Furthermore, Hebish has only been cited once in its approximately 90-year history. That
    citation came in 1935’s Stevens County v. Burrus, 
    180 Wash. 420
    , 425, 
    40 P.2d 125
    (1935). There, the Supreme Court cited Hebish for the elements of prescriptive
    easements but did not carry over Hebish’s statement concerning the burden of proof.
    Post-Hebish, several Court of Appeals cases have stated the burden of proof for
    prescriptive easements to be “clear proof” or that the elements must be “clearly
    established.” Lee v. Lozier, 
    88 Wn. App. 176
    , 185, 
    945 P.2d 214
     (1997) (clear proof);
    Smith v. Breen, 
    26 Wn. App. 802
    , 804, 
    614 P.2d 671
     (1980); Adams v. Skagit County, 
    18 Wn. App. 146
    , 150, 
    566 P.2d 982
     (1977) (clear proof); Roberts v. Smith, 
    41 Wn. App. 861
    , 866, 
    707 P.2d 143
     (1985) (clearly establishes). Contrary to the PUD’s claim that
    “clear proof” is a non-existent burden of proof, “clear proof” is recognized as an
    intermediate burden of proof synonymous with “clear and convincing.” 5 KARL B.
    TEGLAND, WASHINGTON PRACTICE: EVIDENCE LAW AND PRACTICE § 301.3, at 198 n.35
    (6th ed. 2016) (citing Premium Distrib. Co., v. Int’l Bhd. of Teamsters Union Local 174,
    
    35 Wn. App. 36
    , 40, 
    664 P.2d 1306
     (1983)). Premium Distributing held that use of the
    term “clear proof” in RCW 49.32.070 meant an intermediate burden of proof “more than
    25
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    a preponderance of the evidence.” 
    Id.
     at 40 (citing United Mine Workers of America v.
    Gibb, 
    383 U.S. 715
    , 
    86 S. Ct. 1130
    , 
    16 L. Ed. 2d 218
     (1966)). In United Mine Workers,
    the United States Supreme Court held that “clear proof” as used in the Labor
    Management Relations Act signifies “a meaning like that commonly accorded such
    similar phrases as ‘clear, unequivocal, and convincing proof.’” United Mine Workers at
    737.
    Washington has firmly established “clear and convincing” as the burden of proof
    in the analogous areas of adverse possession and equitable estoppel. Thor v. McDearmid,
    
    63 Wn. App. 193
    , 207, 
    817 P.2d 1380
     (1991) (citing Silver Surprize, Inc. v. Sunshine
    Mining Co., 
    88 Wn.2d 64
    , 66, 
    558 P.2d 186
     (1977)); Heriot v. Lewis, 
    35 Wn. App. 496
    ,
    500, 
    668 P.2d 589
     (1983) (citing Muench v. Oxley, 
    90 Wn.2d 637
    , 
    584 P.2d 939
     (1978));
    Pioneer Nat’l Title Ins. v. State, 
    39 Wn. App. 758
    , 761, 
    695 P.2d 996
     (1985) (citing
    Chem. Bank v. Wash. Pub Power Supply Sys., 
    102 Wn.2d 874
    , 905, 
    691 P.2d 524
    (1984)). Like adverse possession and equitable estoppel, a prescriptive easement is an
    equitable remedy that is “disfavored” in the law. It is reasonable to apply the same
    burden of proof to all three remedies.
    Looking outside of Washington, the weight of authority holds that the burden in
    prescriptive easement cases is “clear and convincing.” Wareing v. Schreckendgust, 
    280 Mont. 196
    , 206, 
    930 P.2d 37
     (1996) (clear and convincing); Stricker v. Knaub, 
    215 Neb. 372
    , 377, 
    338 N.W.2d 757
     (1983) (clear, convincing, and satisfactory evidence); Burkett
    26
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    v. Smyder, 
    369 Pa. Super. 519
    , 522, 
    535 A.2d 671
     (1988) (clear and positive); Pettus v.
    Keeling, 
    232 Va. 483
    , 486, 
    352 S.E.2d 321
     (1987) (clear and convincing).
    Finding ourselves unchained from the dicta in Hebish, we follow the great weight
    of authorities and logic and hold that a party asserting a prescriptive easement must prove
    each element by clear and convincing evidence.
    3. The PUD Failed to Prove 10 years of Continuous and Uninterrupted Use
    As noted above, the parties disputed the evidence and the law defining the element
    of 10 years of continuous and uninterrupted use at summary judgment. Before deciding
    whether the undisputed evidence supports the PUD’s claim for a prescriptive easement,
    we must determine what triggers the starting point of the 10-year period based on
    periodic use and what degree of periodic use is sufficient to be continuous and
    uninterrupted. We consider the history and evolution of prescriptive easements to answer
    these questions.
    First, however, we define a few terms for purposes of consistency throughout this
    opinion. “Seasonal use” is the use of property on an annual basis, but only for a portion
    of the year. As will be seen below, the term is often used in agricultural property and
    property owned for recreational purposes. “Intermittent use” is the infrequent use of
    property, usually on an as-needed basis with less regularity than seasonal use. This term
    is often used in easements involving road access to remote properties and flooding cases
    where climatological conditions may reduce or eliminate the dominant estate’s need or
    27
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    ability to flood the servient estate from year to year. “Changing use” is a form of tacking
    where one type or degree of use over a portion of the prescriptive period is followed by
    another type or degree of use over the remainder of the prescriptive period and which
    may or may not ripen into a prescriptive easement.
    We consider an overview of prescriptive easements through secondary sources to
    determine the degree of periodic use sufficient to constitute continuous and uninterrupted
    use. Then we turn to definitive cases in Washington and persuasive cases from other
    jurisdictions.
    (a)   Prescriptive Easements for Seasonal, Intermittent, or Sporadic Use
    According to Professor Stoebuck:10
    [T]he governing principle is that the usage or possession must be as
    continuous, and no more so, as would be normal if the adverse claimant had
    a rightful easement or rightful possession. With an easement, this means
    certainly that the use must be repeated over the period of the statute of
    limitations, but it does not mean that the use has to be made daily or on any
    particular schedule.
    17 WILLIAM B. STOEBUCK AND JOHN W. WEAVER, WASHINGTON PRACTICE: REAL
    ESTATE: PROPERTY LAW § 2.7, at 105 & n.33 (2d ed. 2004).
    10
    The late Professor Stoebuck was a nationally-recognized expert on American
    property law and was a principle author and contributing author of many Washington-
    specific and nationwide articles and treatises on property law. His works have been cited
    hundreds of times in Washington’s case law.
    28
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    This rule, requiring courts to compare facts against a hypothetical “normal”
    easement holder, makes the court’s inquiry highly fact-specific. It also calls on courts to
    figure out what a “normal” easement holder looks like, and in this case a “normal” holder
    of an overflow easement. To support his rule statement, Professor Stoebuck relies on a
    trio of cases: Downie v. City of Renton, 
    167 Wash. 374
    , 
    9 P.2d 372
     (1932); Lee v. Lozier,
    
    88 Wn. App. 176
    , 
    945 P.2d 214
     (1997); and Granite Beach Holdings, LLC, v. State, 
    103 Wn. App. 186
    , 
    11 P.3d 847
     (2000). STOEBUCK, at 105.
    The PUD and Maslonkas agree with Professor Stoebuck that Downie sets forth the
    rule on continuous and uninterrupted when the use is intermittent. Unfortunately,
    Downie’s rule is as clear as reservoir sediment. Downie involved a reservoir that the City
    of Renton owned and drained once or twice a year to allow for cleaning and maintenance.
    When drained, the reservoir’s water and accumulated sediment would terminate on
    Downie’s property and pollute a pond on the property.
    The court noted that for purposes of a prescriptive easement, continuous use is to
    be distinguished from temporary or occasional acts of trespass. Downie, 
    167 Wash. at 382
    . While recognizing that intermittent use may ripen into a prescriptive easement, the
    court suggested that a stricter version of the rule should apply to intermittent use:
    A different rule applies where the use, as here, consists of occasional acts
    of trespass and cases where water is appropriated during long periods of
    time and the amount appropriated varies according to the seasons. In the
    latter class of cases the law seems to be that if the claimant makes use of
    the water from time to time as his needs require there is a continuity of use.
    29
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    A stricter rule applies where the prescriptive right is based upon
    occasional torts spread over the statutory period. In the latter class of
    cases the rule is quite general that isolated cases of trespass, though
    repeated over a long period of time, do not constitute use so as to support a
    claim of prescriptive right.
    
    Id. at 382-83
     (emphasis added). Thus, according to Downie, there are two classes of
    cases. Class one is cases consisting “of occasional acts of trespass.” Class two is cases
    “where water is appropriated during long periods of time and the amount appropriated
    varies according to the seasons.” These classes parallel the descriptions of “intermittent
    use” and “seasonal use” found in other cases.
    While Downie did not clearly articulate the stricter rule for intermittent use, its
    reasoning guides us. Downie relied on Pierce v. Travers, 
    97 Mass. 306
    , 309 (1867). In
    Pierce, the defendants occasionally placed flashboards on their dam for short periods of
    time in the summer to raise the water level behind the dam. This affected the water level
    on the plaintiff’s property. The Pierce court found that this use was not continuous, but
    rather an occasional tort, “‘perhaps not at once resisted only because they were deemed
    unimportant and did but a trifling injury to the plaintiff.’” Downie, 167 Wn.2d at 383
    (quoting Pierce, 97 Mass. at 309). Ultimately, Downie held that periodic flooding for a
    day or two every year for 20 years was not sufficient to create a prescriptive easement:
    “The separate acts of draining the reservoir were wholly lacking in continuity,”
    “consist[ing] at most of desultory acts of trespass, of short duration and occurring at
    widely separated intervals.” Downie, 
    167 Wash. at 383
    .
    30
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    While Downie raises several questions, the holding helps establish the outer limits
    of prescriptive use. At a minimum, we know that flooding a neighbor’s property one or
    two days per year is not enough. See also Granite Beach, 
    103 Wn. App. 186
     (sporadic
    use of logging road to access landlocked property failed to establish continuous and
    uninterrupted use).
    Lee v. Lozier11 concerns seasonal use instead of intermittent use. In Lee, a dock
    was built off a community beach and extended onto Lozier’s lot. The neighbor’s
    collectively paid for half of the dock and Lozier’s predecessor paid the other half. From
    the beginning, Lozier’s predecessor permitted the community to use the entire dock,
    although the two boat slips on the Lozier lot were intended to be used exclusively by the
    lot owner. When Lozier acquired the property, he attempted to assert his property rights.
    The neighbors sued to obtain a prescriptive easement. Lozier defended on the grounds
    that “the neighbors’ uses of the dock were sporadic and seasonal, taking place mostly
    during the summer months and on the weekends.” Lee, 88 Wn. App. at 185.
    Relying on Washington’s adverse possession case law, the Court of Appeals held:
    “‘Continuous and uninterrupted use’ does not, however, require the neighbors to prove
    constant use of the dock. Instead, ‘the claimant need only demonstrate use of the same
    character that a true owner might make of the property considering its nature and
    location.’” Id. (citations and internal quotation marks omitted). In affirming the trial
    31
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    court’s grant of a prescriptive easement, the court noted that the neighbors used the dock
    for recreation just as a true owner would. Although the dock was only used during the
    warm-weather months, that use was also consistent with others’ dock usage on Lake
    Washington. Id. at 185-86. Like Downie, Lee contains no guidance on how much use is
    sufficient to be seasonal versus intermittent.
    Looking at the current Restatement of Property, it too supports Professor
    Stoebuck’s rule statement and suggests that intermittent use ripening into a prescriptive
    easement may have broader application than what Downie suggests.12 According to the
    current Restatement: “Seasonal uses, intermittent uses, and changing uses all may meet
    the continuity requirement so long as they are open or notorious,” and “consistent with
    the character or use of the dominant and servient estates or [consistent] with the normal
    11
    
    88 Wn. App. 176
    , 
    945 P.2d 214
     (1997).
    12
    While the Restatement is not binding, it is persuasive. Secondary authorities are
    particularly persuasive in this area, as evidenced by Washington’s frequent reliance on
    secondary authorities to help it decide easement cases. In Lee, 
    88 Wn. App. 176
    , the
    Court of Appeals relied on the prior version of the Restatement. In Downie, 
    167 Wash. 374
    , the Supreme Court relied on Corpus Juris, Ruling Case Law, and Cyclopedia of Law
    and Procedure. In Washburn v. Esser, 
    9 Wn. App. 169
    , 172, 
    511 P.2d 1387
     (1973), the
    Court of Appeals relied on Thompson’s Real Property, the prior Restatement, Corpus
    Juris Secundum, and American Law Reports. In Northwest Cities Gas Co. v. Western
    Fuel Co, 
    13 Wn.2d 5
    , 83, 
    123 P.2d 771
     (1942), the Supreme Court relied on Herbert
    Thorndike Tiffany’s The Law of Real Property (3d ed.), American Jurisprudence, Corpus
    Juris Secundum, and Clesson S. Kinney’s A Treatise on the Law of Irrigation and Water
    Rights (2d ed.).
    32
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    use that would be made of a servitude of the type claimed.” RESTATEMENT (THIRD) OF
    PROPERTY: SERVITUDES § 2.17 cmt. h. (Am. Law Inst. 2000).
    The PUD relies on comment i in its brief. The Maslonkas urge this court to ignore
    comment i because no Washington case has adopted it and because it is “inconsistent
    with . . . Granite Beach and Downie.” Appellant’s Reply Br. at 10. Contrary to the
    Maslonkas’ position, the rule statement is consistent with the rules set down in Downie,
    Granite Beach, and the rest of the Washington cases discussed below.13
    For seasonal use (not intermittent use), the Restatement provides the following
    examples of cases where seasonal use ripened into a prescriptive easement: Ellison v.
    Fellows, 
    121 N.H. 978
    , 981, 
    437 A.2d 278
     (1981) (annual use of road for hauling hay
    during the haying season sufficient because “characteristic of the kind of road claimed”);
    Epstein v. Rose, 
    101 A.D.2d 646
    , 
    475 N.Y.S.2d 556
     (1984) (seasonal use of road to reach
    wood lot about 100 times per year to remove wood and hunt met continuous
    requirement); Perry v. Williams, 
    84 N.C. App. 527
    , 530, 
    353 S.E.2d 226
     (1987) (annual
    use of road by farm equipment “at all hours of the day during the farming season” was
    continuous); Smith v. Mervis, 
    38 Ill. App. 3d 731
    ,733, 
    348 N.E.2d 463
     (1976) (use of
    13
    We limit our application of comment i to the Restatement’s discussion of what it
    calls the “physical aspect” of the continuous and uninterrupted use element, particularly
    its discussion of seasonal and intermittent uses. We do not adopt the Restatement’s
    discussion of what it calls the “mental aspect” of this element.
    33
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    railroad right-of-way parallel to tracks 100 times per year for 27 years for moving
    farming equipment sufficiently continuous). See RESTATEMENT, § 2.17 cmt. i.
    These cases suggest that use may be considered “seasonal” and not “intermittent”
    if the use is tied to a recurring, predictable time of year (e.g., a particular growing season)
    even if the use is not daily during that season, or where use is so frequent that it occurs
    daily over several months of the year. On summary judgment, the PUD asserted that the
    dam caused excess flooding on the Maslonkas’ property on average of 22 non-
    consecutive days per year, usually (though not always) in the spring, but unpredictable
    nonetheless. This position suggests intermittent as opposed to seasonal use because it
    lacks the same seasonal character as an established growing season, a known hunting
    season, or the summer vacation season.
    (b) Additional Washington Cases Applying the Rule on Continuous and
    Uninterrupted Use
    In addition to establishing that periodic use is sufficient to be continuous and
    uninterrupted, the PUD must also establish the actions that trigger the prescriptive period,
    the boundaries of the prescriptive easement, and the reasonable use of the easement.
    “The seminal case on prescriptive easements is Northwest Cities.” Gamboa, 
    183 Wn.2d at 43
    . Northwest Cities filed suit against Western Fuel, seeking a prescriptive
    easement to use a road across Western Fuel’s property. The suit was prompted when
    Northwest Cities expanded its use of Western Fuel’s property and Western Fuel closed
    34
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    off Northwest’s access. The evidence easily supported the element of 10 years of
    continuous and uninterrupted use by Northwest Cities. Nw. Cities Gas Co., 
    13 Wn.2d 75
    .
    The issue relevant to this case was changing use and the extent of the resulting
    easement. The plaintiff’s present use of the servient estate extended to 48 feet in width,
    but their historical use was only 20 feet in width. Because the plaintiff could only prove
    10 years of continuous use at 20 feet in width, the Supreme Court held that the trial court
    erred in defining the easement based on the current use. 
    Id. at 91-93
    . Relying on Corpus
    Juris Secundum, the Supreme Court held:
    “Where an easement is acquired by prescription, the extent of the right is
    fixed and determined by the user in which it originated, or, as it is
    sometimes expressed, by the claim of the party using the easement and the
    acquiescence of the owner of the servient tenement. While a prescriptive
    right to an extended easement may be acquired by excessive user, . . . yet an
    easement acquired by prescription cannot be extended except by an adverse
    user which has been acquiesced in for the requisite length of time, or by the
    acquisition by some other title of additional rights.”
    
    Id. at 92
     (alteration in original) (quoting 28 C.J.S. Easements § 74, at 751 (1941)).
    The import of this case is that for the PUD to establish its prescriptive easement up
    to 2041 feet, it needed to demonstrate that it had operated the dam at that level
    throughout an entire prescriptive period. The record contains no evidence showing that
    the PUD has operated the dam at this level for 10 consecutive years.
    We know that in 1999, FERC amended the PUD’s license to permit operations up
    to 2041 feet. But, this license amendment does not state when the PUD started operating
    35
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    up to that level or whether that operation has been continuous. The fact that the river has
    reached or exceeded 2041 feet every year of the dam’s existence, except for 5 years, is
    insufficient to support summary judgment on the PUD’s claim. Without additional
    information, we have no way of knowing if that rise in elevation was caused by nature or
    caused by the dam. It could be that the dam’s historical practice has been to lift all the
    gates at 2031 or 2041 feet or somewhere in between. If the dam’s historical practice has
    been to lift the gates prior to 2041 feet, then under Northwest Cities, the trial court would
    have had to set the easement to that lesser level, assuming that historical practice had
    persisted for 10 consecutive years.
    The parties also rely on McInnis. In McInnis, the Supreme Court considered a
    prescriptive easement in favor of a dam operator to flood surrounding lands. The dam
    was a reservoir dam, creating a storage pond for logs floated down the river to a sawmill.
    The evidence established that the dam presently raised waters in the area immediately
    above the dam by more than 29 inches and had for some years. But, the dam operator
    could only prove 10 years of continuous use at an elevation of 29 inches. Because the
    dam operator could not prove 10 years of use at an elevation greater than 29 inches, the
    Supreme Court affirmed the trial court’s setting of the prescriptive easement at 29 inches
    and not at a higher level. McInnis v. Day Lumber Co., 
    102 Wash. 38
    , 39-40, 
    172 P. 844
    (1918).
    36
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    The import of McInnis is the same as Northwest Cities and is highly analogous to
    this case, given that it involved an overflow easement. For the PUD to acquire a
    prescriptive easement up to 2041 feet, it needs evidence of 10 years of continuous and
    uninterrupted use at—not up to—2041 feet for each of those 10 years. If most of the
    PUD’s use during any given year occurs below 2041 feet, reaching 2041 only a few days
    a year, then any easement will be at the highest continuous level of use.
    One of the relevant cases that the parties did not cite is St. Martin which helps us
    determine when a prescriptive period begins to run. St. Martin built a resort around a
    natural hot spring. In 1901, Skamania Boom Company built a splash dam14 on a
    seemingly unconnected nearby river. “For some unknown reason, the flow of the spring
    is so affected by the volume of water in the river that, when the flow of the river is
    obstructed above the spring in the dry summer season, the spring furnishes only a small
    part of its normal supply, and is wholly insufficient to accommodate the plaintiffs’ guests
    and patrons.” St. Martin v. Skamania Boom Co., 
    79 Wash. 393
    , 395, 
    140 P. 355
     (1914).
    St. Martin sued to either enjoin the splash dam’s operation or force the owners to
    reconstruct it downriver from the spring. The dam owner countered that it had acquired a
    14
    Splash dams were used by logging companies to float logs to downstream
    sawmills. If a waterway’s flow was insufficient to carry logs to the mill, the loggers
    would construct a splash dam to impound upstream waters and when enough water built
    up behind the dam, the loggers would release it, and the surging backflow would carry
    the logs to the sawmill. See Berryman v. E. Hoquiam Boom & Logging Co., 
    68 Wash. 657
    , 658, 
    124 P. 130
     (1912).
    37
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    prescriptive easement because the dam had been in operation for approximately 12 years
    prior to St. Martin commencing suit.
    The Supreme Court affirmed the trial court, and held that the dam operator had not
    acquired a prescriptive easement. Although the dam had been in operation for over a
    decade, it had been less than ten years since the dam’s operations first damaged St.
    Martin’s spring. The damage did not begin until some years later when other dams along
    the same river system (also built by Skamania Boom) came into operation, blocking off
    alternative routes for the river’s waters to reach the spring—a change in use. In siding
    with St. Martin, the Supreme Court held: “We think that, both on reason and authority,
    the period of a prescriptive right to an easement to use or damage the lands of another can
    only begin to run from the time when the person suffering the damage first had a cause of
    action arising from the adverse use.” St. Martin, 
    79 Wash. at 399
    .
    Similar to Northwest Cities and McInnis, St. Martin confirms that for the PUD to
    have acquired a prescriptive easement to flood above the level of its express easement,
    we must know when the PUD first began violating the terms of its express easement, in
    other words: when it began causing damage above 2035.5 feet.
    Murphy answers the same question answered in St. Martin, concerning when the
    prescriptive period begins to run. Like this case, Murphy also involved a dam owner’s
    prescriptive easement to flood neighboring property. Murphy v. Calispel Duck Club, 
    163 Wash. 366
    , 
    300 P. 1060
     (1931). In 1907, the Club built a dam on the Calispel River in
    38
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    Pend Oreille County. The dam functioned for over a decade without causing any
    problems for Murphy. In 1926, the Club elevated the dam several feet, which flooded
    roughly 120 acres of Murphy’s farmland. Murphy filed suit less than five years later.
    The Club counter-claimed that it had acquired a prescriptive easement to flood Murphy’s
    property because the dam had been in continuous operation for well over a decade.
    Murphy countered that the prescriptive period did not begin to run until 1926 when the
    modification to the dam caused the first actual damage to his property. Quoting from St.
    Martin, the Supreme Court sided with Murphy and held that the prescriptive period did
    not begin to run until 1926; thus, the Club had not acquired a prescriptive easement.
    Murphy, 
    163 Wash. at 367-68
     (quoting St. Martin, 
    79 Wash. at 399
    ). Murphy confirms
    that the first step in deciding whether the PUD has a prescriptive easement is answering
    when the prescriptive period began to run, as defined by the date the PUD began
    exceeding its express easement to such a degree that a cause of action accrued.
    Finally, assuming the PUD can establish a prescriptive easement to flood the
    Maslonkas’ property up to 2041 feet, there is a question of fact as to whether and to what
    extent the prescriptive easement allows the PUD to damage the Maslonkas’ property. In
    Berryman v. E. Hoquiam Boom & Logging Co., 
    68 Wash. 657
    , 659, 
    124 P. 130
     (1912),
    the defendants operated a splash dam that would flood the plaintiffs’ property when
    waters were released to float logs down the river. The undisputed evidence established
    that this flooding had occurred for more than 10 years under a claim of right, and the
    39
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    defendants had a prescriptive easement to do so. Nevertheless, while the easement itself
    was clearly established, the plaintiffs could still recover damages if the easement had
    been negligently used or unreasonably damaged the plaintiffs’ property. Id. at 660.
    In this case, the Maslonkas contend that even if the PUD establishes a prescriptive
    easement, the easement does not allow the PUD to erode their property permanently. The
    PUD contends that its prescriptive easement is the same as its express easement, allowing
    for erosion. As the court in Northwest Cities noted, the terms of a prescriptive easement
    are set by the use established over the prescriptive period. The terms and boundaries of a
    prescriptive easement are questions of fact, as is whether the easement has been
    negligently used or unreasonably damaged the Maslonkas’ property.
    (c)   Foreign Cases
    Our review of out-of-state cases supports our understanding that Washington law
    on prescriptive easements is in accord with most states.
    The PUD cites Swan15 and Arrien16 in support of its position. Swan concerns
    seasonal flooding and has been cited by our Supreme Court several times. In Swan, five
    upriver property owners sued Munch, the owner of a dam, for flooding their property.
    The Minnesota Supreme Court described the dam as a “sluicing dam,” used for driving
    logs downriver. Swan v. Munch, 65 Minn. at 501, 503. Munch defended on the grounds
    15
    Swan v. Munch, 
    65 Minn. 500
    , 
    67 N.W. 1022
     (1896).
    16
    Arrien v. Levanger, 
    263 Or. 363
    , 
    502 P.2d 573
     (1972).
    40
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    that she had acquired a prescriptive easement to flood the plaintiffs’ properties. The
    plaintiffs argued she failed to prove continuity because she only flooded their lands from
    April–June (the runoff season). The court held that such seasonal use did not disrupt
    continuity because Munch used the plaintiffs’ property “only when her needs and public
    necessity requires her to do so . . . and an omission to use it when not needed would not
    disprove a continuity of use, or defeat her right to an easement by prescription.” Id. at
    503. The court also noted that it is common knowledge that log-driving typically only
    occurs during those months, and that it is not profitable during other months of the year.
    Id.
    Swan supports the PUD’s position that seasonal flooding on an as-needed basis
    will support a finding of continuous and uninterrupted use. Swan fits well within the rule
    adopted in Lee and Howard (Washington’s seasonal use cases). But, it is not at all clear
    that the “run of the river” dam in this case is in any way comparable to the “sluicing
    dam” from Swan. The facts in Swan suggest that while the flooding only occurred for
    three months of the year, it was continuous during those three months. More importantly,
    the facts in Swan were determined after a trial, not at summary judgment.
    Here, the evidence shows that the PUD has for decades caused flooding an
    average of 22 days per year. This is certainly more than the once or twice per year at
    issue in Downie, but it is also far less than the constant use throughout the spring or
    summer months that the old log driving dams were known for. It is also not clear how
    41
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    many consecutive days of flooding above 2035.5 feet was generally caused by Box
    Canyon Dam. It may be that the Maslonkas’ property was flooded for a week or month
    at a time, but only one or two days was caused by the dam.
    The PUD also cites Arrien that concerned seasonal damage to farmland caused by
    a reservoir dam. The defendant had a permit from the state to impound approximately
    1000 acre feet of water, but actually impounded far more than that in order to maximize
    water availability for irrigation; the excess impoundment resulted in flooding on the
    plaintiff’s land. The defendant claimed a prescriptive easement up to the dam’s high
    water mark during “wet” years. The plaintiff countered that continuity had not been
    established because there were several years during the claimed prescriptive period in
    which the water never reached that level, and several other years where the dam caused
    no flooding at all. Arrien, 263 Or. at 367-68.
    The Oregon Supreme Court sided with the defendant dam, but did so under
    reasoning that is incompatible with Washington’s case law. While the court’s holding
    confirmed that intermittent use can ripen into a prescriptive easement, the court went on
    to hold that the boundaries of the easement were established by the dam’s high water
    mark, which was reached in only one-third of the years that flooded. Id. at 369-70. This
    holding is clearly contrary to the precedent established in McInnis and Northwest Cities,
    which limited prescriptive easements to their maximum sustained use over the
    42
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    prescriptive period. It is also contrary to trend in other states discussed below, and
    appears to be an outlier among the states.
    The Maslonkas rely on several Idaho cases to support their position that PUD has
    failed to establish a prescriptive easement. These cases are easily distinguishable because
    Idaho’s common law provided that flooding caused a continuing trespass under tort law
    that could never ripen into a prescriptive easement. See Deffenbaugh v. Wash W. Power
    Co., 
    24 Idaho 514
    , 
    135 P. 247
     (1913), and Lavin v. Panhandle Lumber Co., 
    51 Idaho 1
    , 
    1 P.2d 186
     (1931). This rule effectively prohibited dam operators like the PUD from ever
    acquiring prescriptive rights in Idaho. Not only is this a minority position in the United
    States and incompatible with Washington law, but Idaho enacted a statute abrogating this
    common law rule. See FORMER IDAHO CODE § 5-246 (1991).
    One of the more analogous foreign cases that was not identified by the parties is
    Blasdel v. Montana Power Co., 
    196 Mont. 417
    , 
    640 P.2d 889
     (1982). In Blasdel, a
    farmer successfully brought suit for inverse condemnation stemming from damage
    caused by Kerr Dam.17 The dam impounds the waters of the Flathead River, raising the
    natural levels of Flathead Lake, and uses the lake as its reservoir. Because Seli’š Ksanka
    Qlispe’ Dam is an impound dam, not a ROR dam, it affects upstream lands differently
    than Box Canyon Dam. Instead of increasing the frequency and intensity of periodic
    flooding (like Box), Seli’š Ksanka Qlispe’ raises the surrounding water table,
    43
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    permanently submerging low-lying lands and enlarging existing sloughs. While the
    plaintiffs began complaining of damage to their land in 1941, there were no problems
    during dry years. Following a bench trial, the court found that the problems caused by
    the gradually increasing water table were intermittent and temporary until 1959-1960,
    when they became permanent. Thus, the statute of limitations on the plaintiff’s claim of
    inverse condemnation did not begin to run until the damage became permanent.
    Throughout trial, Montana Power continued to assert that it never invaded the
    plaintiff’s property. It appears that Montana Power raised the defense of prescription for
    the first time on appeal. The Montana Supreme Court rejected this defense, concluding
    that Montana Power failed to prove any of the elements of a prescriptive easement at
    trial.
    The facts in Blasdel are analogous to this case. Here, the PUD submits that its
    evidence shows that the dam has historically caused an average of 22 days annually of
    flooding above its express easement limits. And yet, the PUD does not submit evidence
    to show any particular day when the dam has caused any excess flooding. Instead, the
    PUD argues that its evidence of averages since the dam became operational in 1955 is
    sufficient to show a prescriptive easement. Under Blasdel (and more importantly
    McInnis and Northwest Cities), the dam operator must specifically identify when it
    17
    Kerr Dam was renamed Seli’š Ksanka Qlispe’ Dam in 2015.
    44
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    believes the prescriptive period began to run—i.e., identify the specific year when it first
    caused damage to the plaintiff’s land sufficient to put the landowner on notice—and then
    put forward competent evidence for each subsequent year showing that it (and not natural
    meteorological conditions) continued to so damage the plaintiff’s land. While
    interruptions in use will not necessarily prevent the establishment of an easement, such
    interruptions may impact any easement’s defined limits.
    In Steiner v. County of Marshall, the South Dakota Supreme Court held that the
    prescriptive period for a flooding easement did not begin to run until the first damage
    occurred. 
    1997 S.D. 109
    , 
    568 N.W.2d 627
    , 632 (1997). Steiner is a relatively recent case
    that offers persuasive authority to reinforce the ongoing validity of Washington’s older
    cases holding that the prescriptive period does not begin to run until damage occurs, not
    when the damage becomes a possibility.
    In Buchanan v. Seim, 
    104 Neb. 444
    , 
    177 N.W. 751
    , 752 (1920), the defendant
    built an embankment on his property to hold back flood waters from an adjacent creek.
    When the creek flooded, the embankment caused the plaintiff’s property to flood. The
    plaintiff sued to remove the embankment and the defendant claimed a prescriptive
    easement to flood his neighbor’s property. While acknowledging that the flooding had
    occurred for more than 10 years, it was at “intermittent and widely separated intervals”
    that were insufficient to constitute continuous use sufficient to perfect an easement by
    prescription. 
    Id.
    45
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    Stricker v. Knaub is a case of changing use. Stricker and Knaub were farmers.
    Knaub’s excess irrigation water collected on Stricker’s property. Stricker sought to force
    Knaub to recapture his excess irrigation water, and Knaub claimed a prescriptive
    easement to flood Stricker’s property. 
    215 Neb. 372
    , 
    338 N.W.2d 757
     (1983).
    Nebraska’s Supreme Court rejected the easement because the evidence failed to establish
    the constant minimum level of use over the prescriptive period:
    “The nature and extent or scope of the user must from the beginning be
    clearly established. At the end of the period it must appear in retrospect
    that there has been no material change or variance from the limits or course
    adopted or established at the beginning. A lesser user prevents a right to an
    easement and a greater user is of no importance until the full prescriptive
    period has elapsed from the initiation of the greater use. The law requires
    that the easement must be clearly definable and precisely measured.” We
    conclude the evidence fails to clearly, convincingly, and satisfactorily show
    all of the elements required to establish a prescriptive easement such as
    sought by defendants.
    
    Id. at 377-78
     (quoting Kuhlmann v. Platte Valley Irrigation Dist., 
    166 Neb. 493
    , 
    89 N.W.2d 768
    , 781 (1958) (citations omitted)). While Knaub had discharged water onto
    Stricker’s property for decades, the use kept changing. The discharge did not always
    pool in the same area of Stricker’s property and occurred at different times of the year
    depending on what crop was in rotation. Moreover, the discharge had only become a
    problem in recent years when Knaub drilled more wells, allowing him to continue
    irrigating after the irrigation district had discontinued supplying water, and because
    Knaub’s switch to nitrate fertilizers required more water.
    46
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    Continuing, the court further explained: “The volume of waste water discharged
    has varied from year to year. Consequently, the nature and extent or scope of the user
    over any one 10-year period cannot be determined. Stated another way, the evidence
    fails to establish by the requisite quantum of evidence the lesser user enjoyed by
    defendants during any 10-year period.” Id. at 378. While Knaub probably could have
    acquired a lesser easement, he acquired no easement at all because he could not prove a
    minimum level of sustained use over any 10-year period.
    Under the facts presently before this court, Stricker is instructive and consistent
    with Washington State’s McInnis and Northwest Cities. It is possible that the PUD has
    been causing excess flooding on the Maslonkas’ property for decades. But, the PUD has
    not pointed to a single 10-year period that it claims to have damaged the property in a
    continuous and uninterrupted manner. Nor has it shown that its use has remained
    continuous at a particular level for the prescriptive period.
    Another fact worth noting is that the PUD’s answer to the complaint alleged that
    its prescriptive easement vested “in or about 1965.” CP at 31. Yet, 1955-1965 was not
    the prescriptive period that the PUD argued at summary judgment. At summary
    judgment, the PUD alleged that the easement vested in July 1966 (10 years after starting
    operations) or February 2009 (10 years after the 1999 license amendment). In granting
    summary judgment, the trial court found that the prescriptive easement vested “no later
    than 1999” (yielding a prescriptive period of 1989-1999), but did not explain how it
    47
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    reached that conclusion. The Maslonkas do not appear to have realized this discrepancy
    in the pleadings and have thus waived any claim of error with respect to lack of notice.
    However, the PUD’s failure to specify an exact prescriptive period at summary judgment
    supports the Maslonkas’ claim that genuine issues of material fact exist with respect to
    this issue.
    (d) Application of the Facts to the Law
    As this exhaustive review of cases demonstrate, there is no magic number that
    distinguishes intermittent use from seasonal use or sporadic use. Nor is there a definitive
    legal test to determine when intermittent or seasonal use is sufficient to ripen into a
    prescriptive right. Instead, the answers to these critical questions are highly fact specific.
    On summary judgment, the PUD failed to clearly establish (1) when the 10-year period
    prescriptive period began, (2) that its use during that period was more than an occasional
    tort, and (3) that it consistently caused flooding at 2041 feet sufficient to establish that
    elevation as the boundary of the alleged easement.
    The Washington State Supreme Court was clear in St. Martin and Murphy that the
    prescriptive period does not begin to run whenever a dam is built, thereby creating the
    risk of flooding. The prescriptive period only begins to run when the dam’s operations
    actually causes continuous harm, giving rise to a cause of action for damages.
    The use must be continuous enough that it is more than an occasional tort. As Mr.
    Maslonka noted, when the water is high for a day or two, it has little impact, but, when
    48
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    the water is high for a month or two it has a substantial negative impact on Mr.
    Maslonka’s farming operations. If this is true, the fact-finder may determine that
    infrequent flooding for a day or two does not cause damage (Blasdel) or is insufficient to
    be continuous (Downie). Throughout summary judgment, the PUD has claimed that on
    average, the dam causes flooding to the Maslonkas’ property 22 days per year. But this
    “average” is based on 40 years of data that varies widely as demonstrated by the detailed
    analysis of data between the years of 2015 and 2018. The reliance on vague averages
    without any definite evidence of continuous trespass fails to clearly establish the element
    of continuous use.
    Not only does the PUD’s evidence fail to provide any certainty on when it first
    began damaging the Maslonkas’ property, and how many days the dam has caused
    flooding on the Maslonkas’ property during a 10-year period, but there is no evidence as
    to the extent of the flooding. Again, the question is not whether the Maslonkas’ property
    has flooded, it is whether the flooding was caused by the dam and to what extent.
    Instead, the PUD argues that the dam has been in existence since 1955 and the water has
    exceeded the easement. Under Northwest Cities (what Gamboa called Washington’s
    “seminal case on prescriptive easements”), a prescriptive easement is not defined by the
    highest one-time level of use during the prescriptive period; rather, it is based on the
    highest level of use sustained over the prescriptive period. Thus, the Supreme Court in
    Northwest Cities reduced the prescriptive easement from 48 feet in width down to 20
    49
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    feet. See also McInnis, 
    102 Wash. 38
     (overflow easement set at 29 inches even though
    current use exceeded 29 inches).
    C. INVERSE CONDEMNATION
    1. Subsequent Purchaser Rule
    In their complaint, the Maslonkas included a claim for inverse condemnation,
    alleging that the PUD’s actions of flooding their property above the express easement
    constituted a permanent taking. The superior court dismissed this claim on summary
    judgment after determining that the subsequent purchaser rule barred the claim for inverse
    condemnation. The Maslonkas assign error to this decision. We conclude that the PUD
    failed to meet its burden of proving the subsequent purchaser rule as a matter of law.
    Inverse condemnation occurs when private property is taken or permanently
    reduced in value by a government agency for public use without formal exercise of the
    government’s right of eminent domain. Phillips v. King County, 
    136 Wn.2d 946
    , 957,
    
    968 P.2d 871
     (1998). The PUD contends that even if its flooding of the Maslonka’s
    property constitutes a taking, this taking occurred before the Maslonkas purchased their
    property. Damages owed, if any, would have been payable to the Maslonkas’
    predecessors, but not the Maslonkas.
    “Because the right to damages for an injury to property is a personal right
    belonging to the property owner, the right does not pass to a subsequent purchaser unless
    expressly conveyed.” Hoover v. Pierce County, 
    79 Wn. App. 427
    , 433-34, 
    903 P.2d 464
    50
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    (1995). Accordingly, “a grantee or purchaser cannot sue for a taking or injury occurring
    prior to his acquisition of title, but he may sue for any new taking or injury.” State v.
    Sherrill, 
    13 Wn. App. 250
    , 257 n.1, 
    534 P.2d 598
     (1975). Thus, the determinative
    question is whether the PUD’s excess use constituted a permanent taking and if so, when
    the taking was completed. See Hoover, 79 Wn. App. at 434 (“Thus, the determinative
    question in this case is whether the floodings which occurred in 1990 and 1991, after the
    Hoovers purchased the property, gave rise to new causes of action.”).
    Because the subsequent purchaser rule is a defense, it was the PUD’s burden before
    the superior court to prove that it permanently reduced the value of the Maslonkas’
    property before the Maslonkas purchased the land in 1993. The PUD failed to carry this
    burden on summary judgment. The PUD’s primary evidence in support of the subsequent
    purchaser rule is Mr. Maslonka’s deposition testimony admitting that he knew prior to
    purchasing it that the property flooded periodically. But this testimony is too nonspecific
    to prove anything. Mr. Maslonka was not asked at what water mark he knew the property
    flooded to and was not asked if he knew the source of the flooding. The inverse
    condemnation claim is based on flooding above the express easement limit, and without
    deposition testimony tailored to distinguishing between flooding above or below the
    easement limit, the PUD cannot prove its defense. In other words, when taking the
    evidence in the light most favorable to the Maslonkas, Mr. Maslonka’s deposition
    51
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    testimony only proves that he was aware of periodic flooding up to the recorded easement
    limits.
    In addition to Mr. Maslonka’s testimony, the PUD also relies on the fact that the
    dam has been in constant operation since before the Maslonkas purchased their property.
    This fact is also meaningless when presented on its own. In order to receive the benefit
    of the subsequent purchaser rule, the PUD must show that its operations began causing
    flooding above 2035.5 feet prior to 1993.
    Moreover, “[a] new taking cause of action accrues with each measurable or
    provable decline in market value of the property.” Hoover, 79 Wn. App. at 434 (citing
    Highline Sch. Dist. 401 v. Port of Seattle, 
    87 Wn.2d 6
    , 15, 
    548 P.2d 1085
     (1976)). Thus,
    if the PUD can only prove that it caused flooding up to for example 2037 feet (instead of
    2041) prior to 1993, then the Maslonkas will still have a new takings cause of action for
    damage above 2037 feet.
    In addition to elevation, there is also a question of degree. Flooding another’s
    property once or twice a year might be relevant to proving the prescriptive easement claim,
    but it has little bearing on application of the subsequent purchaser rule. Flooding once or
    twice a year is unlikely to have any damaging effect on much of the Maslonkas’ property.
    The distinction between mere excess use and excess use that results in damages is
    important because a taking only occurs when injury occurs. See Blasdel, 
    196 Mont. 417
    .
    52
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    We also note that the PUD has received significant license amendments at least
    twice since the Maslonkas purchased the property. It is not inconceivable to think that
    the PUD altered or expanded its operations as a result of those amendments in such a way
    as to cause new damage to the Maslonkas’ property.
    While the Maslonkas are ultimately responsible for proving new damage during
    their tenure, it is the PUD’s burden to prove damage prior to the Maslonkas’ tenure if the
    PUD is to receive the benefit of the subsequent purchaser rule. The current record is
    insufficient to make these determinations. Accordingly, the dismissal of inverse
    condemnation claims must be reversed.
    2. Inverse Condemnation does not Subsume Other Torts
    The PUD also argues that the trespass and nuisance claims should be dismissed
    because they are subsumed by the inverse condemnation claims. According to the PUD,
    if the inverse condemnation claims are dismissed then the trespass and nuisance claims
    must also be dismissed. For support, the PUD relies on two cases: Ackerman v. Port of
    Seattle, 
    52 Wn.2d 903
    , 
    329 P.2d 210
     (1958) and Highline School Dist. No. 401, 
    87 Wn.2d at 17, 18
    .
    In Ackerman, the Supreme Court stated that when a taking occurs, the government
    acts in its sovereign capacity and “goes not as a trespasser.” Ackerman, 52 Wn.2d at 218
    (citation omitted). “It is apparent that acts of a municipal corporation or its agents in the
    prosecution of a public work or use, which, if done by a private individual, would
    53
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    constitute a trespass, are deemed a constitutional taking or damaging rather than a
    trespass.” Id. at 218-19 (alteration in original). Because the Supreme Court was
    remanding for a trial on the plaintiff’s inverse condemnation claim, it was able to
    “dispose of the trespass theory briefly and quickly.” Id. at 218. This opinion appears to
    suggest that when inverse condemnation is pleaded, then a trespass claim cannot be
    pleaded and must be dismissed.
    In a subsequent appeal in the same case, the court clarified: “If the complaint is
    sustainable on the theory of constitutional taking, the trial court’s order sustaining the
    Port’s demurrer must be reversed, and any discussion of the common law concepts of
    trespass or nuisance is unnecessary.” Ackerman, 55 Wn.2d at 404. This latter opinion
    suggests that trespass and nuisance are merely mooted when there is a viable cause of
    action for inverse condemnation, not that they are incompatible with each other. If there
    had been no viable cause of action for inverse condemnation, then it would have been
    “necessary” for the court to address those torts. The rule stated in the latter Ackerman
    opinion appears to be more so a rule of judicial economy, than a rule against mutually
    exclusive causes of action.
    In Highline (the other case relied on by the PUD), the Supreme Court explained:
    “In this jurisdiction the evolution of inverse condemnation actions in the airport cases[18]
    18
    The airport cases were a nationwide movement during the mid-20th century that
    grew out of the United States Supreme Court’s expansion of takings to compensate
    54
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    has made reliance on traditional tort theories unnecessary when, as here, the airport is
    owned and operated by a governmental entity and the recovery sought is only for loss of
    property rights, not personal or other injuries.” Highline, 
    87 Wn.2d at 17
    . Thus,
    In circumstances where the inverse condemnation theory is available,
    potential plaintiffs are not disadvantaged if they are denied recourse to a
    nuisance cause of action. Of course, where a plaintiff seeks to recover
    damages for other than loss of property rights or where the defendant is not
    an entity to which eminent domain principles apply, the nuisance remedy is
    still available.
    
    Id. at 17-18
     (footnote omitted).
    The characterization of “traditional tort theories” as “unnecessary” and that tort
    recovery is possible alongside condemnation damages where different types of damages
    are sought confirms that the tort causes of action are not fully subsumed by inverse
    condemnation. In Ackerman and Highline, it was only unnecessary to address the torts
    because the plaintiffs had viable inverse condemnation claims. Both cases imply that if
    the condemnation claims failed, that the tort claims would still exist as backup theories of
    recovery.
    nuisances (non-trespassory invasions to real-property) for property value lost as a result of
    noise from aircraft landing and taking off. Traditionally, activity legislatively authorized
    by government could never be a nuisance because such activity was undertaken for the
    public good. The airport cases created an exception to this common law defense. See
    generally United States v. Causby, 
    328 U.S. 256
    , 
    66 S. Ct. 1062
    , 
    90 L. Ed. 1206
     (1946),
    and its progeny.
    55
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    Notably, subsequent cases of inverse condemnation, have not followed the PUD’s
    interpretation of Ackerman and Highline. For example, in Lakey the Supreme Court
    addressed the merits of the plaintiffs’ nuisance claim alongside the merits of their inverse
    condemnation claim. See generally Lakey v. Puget Sound Energy, Inc., 
    176 Wn.2d 909
    ,
    
    296 P.3d 860
     (2013). Despite relying on Highline as authority, the Lakey court did not
    mention any rule against pursuing a nuisance action alongside a condemnation action.
    In Pacific Highway Park, an unpublished case relied on by the Maslonkas,
    Division Two of this court rejected an argument similar to the one raised here by the
    PUD that inverse condemnation subsumes trespass. Pac. Hwy. Park v. Dep’t of Trans.,
    No. 44198-5-II at 6 (Wash. Ct. App. June 3, 2014) (unpublished), www.courts.wa.gov
    /opinions/pdf/D2%2044198-5-II%20Unpublished%20Opinion.pdf. The court also ruled
    that even if inverse trespass could subsume trespass, that dismissal of the trespass claim
    was not appropriate because there was no inverse condemnation claim to subsume it into
    because of application of the subsequent purchaser rule. 
    Id.
    In this case, the trial court erred by dismissing the inverse condemnation claims
    under the subsequent purchaser rule. The evidence submitted by the PUD is insufficient
    to prove as a matter of law that any and all takings occurred prior to the Maslonkas’
    purchase in 1993.
    56
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    D. PARCEL ONE CAUSES OF ACTION
    The PUD argues that if we reverse dismissal of the Maslonkas’ claims, we should
    affirm dismissal of those claims related to Parcel 1 (inland parcel) on the alternative
    ground that the Maslonkas failed to make out a prima facie claim that the PUD
    proximately caused injury to Parcel 1. We agree with the PUD’s argument.
    Although the trial court did not reach this argument, this court may affirm the trial
    court on any ground supported by the record. RAP 2.5(a). “Summary judgment . . . may
    be brought in one of two ways. The defendant can attempt to establish through affidavits
    that no material factual issue exists or, alternatively, the defendant can inform the trial
    court that the plaintiff lacks competent evidence to support an essential element of her
    case. In this latter situation, the moving party need not support its summary judgment
    motion with affidavits.” Boyer v. Morimoto, 10 Wn. App. 2d 506, 519, 
    449 P.3d 285
    (2019) (citations omitted). Here, the PUD has established both: no genuine issue of
    material fact exists as to Parcel 1 and that the Maslonkas lack competent evidence to
    support an essential element of each of their Parcel 1 causes of action.
    The Maslonkas claim that liability for damage to Parcel 1 stems from the PUD’s
    failure to maintain the diking improvements at Perkins Slough, but their analysis never
    moves beyond conclusory allegations. In his deposition, Mr. Maslonka was clear that he
    could only offer speculation on the cause of the flooding on Parcel 1:
    57
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    I have really no opinion on whose—whose responsibility it is. I don’t
    know what’s actually causing the problem. I don’t know if it’s the culvert
    where the gate and culvert meet, or the gate itself. I can’t specify. I really
    have no opinion on whose responsibility it is or where the damage, leaks
    are coming from.
    CP at 175. The Maslonkas’ expert also did not opine on what caused the flooding on
    Parcel 1.
    To support their position on appeal, the Maslonkas offer a string of citations to the
    clerk’s papers, but conspicuously fail to analyze the parts of the record they cite to.
    Appellant’s Reply Br. at 24 (citing CP 1353-55, 1363, 1366, 1368, 1370, 1372, 1374-
    1379, 1390, 1396). A review of these citations shows that they do not support the
    Maslonkas’ position.
    The only evidence as to what might be causing the flooding on Parcel 1 came from
    evidence supplied by the PUD during discovery. The PUD’s employees determined at
    least as far back as 2006 that the culvert was leaking water out through the dike and that
    the dike itself had several leaks, but that the gate was intact. A 2016 report by
    engineering firm McMillen Jacobs, commissioned by the PUD, revealed significant
    corrosion in the culvert. Distinguishing amongst the dike, culvert, gate, and pump is
    important because different contracts delineate who is responsible for each of these
    structures.
    In 1963, and again in 2008, the PUD signed contracts with the Diking District
    obligating the PUD to operate and maintain the gate and pump. Neither contract contains
    58
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    an agreement to maintain the culvert or the dike (i.e., railroad embankment). The 2008
    contract expressly disclaimed any PUD responsibility for “replacement or repair to the
    culvert.” CP at 324. Considering that Mr. Maslonka was a signatory to that 2008
    contract (in his capacity as Diking District Commissioner), it would be disingenuous for
    him to now argue that the contract obligated the PUD to assume legal responsibility for
    the culvert. Instead, the Maslonkas ignore the contracts altogether.
    The only evidence in the record concerning a responsibility to maintain the culvert
    and dike (as opposed to the gate and pump) is in the railroad’s 1909 contract with the
    Diking District. This contract gave the Diking District a license to use the railroad
    embankment as a dike. It also gave the Diking District permission to operate flood gates
    at the ends of the culvert, with the gates to be constructed by the railroad at the Diking
    District’s expense. Finally, the contract allocated responsibility for maintenance and
    improvement of the culvert: requiring the railroad to pay for any changes intended to
    benefit the railroad and for the Diking District to pay for any changes intended to benefit
    the Diking District.
    When considering the contracts and the Maslonkas’ citations to the record as a
    whole, the record supports a finding that the culvert and dike are defective and that the
    same cannot be said of the gate or pump. The record supports a finding that the PUD is
    legally responsible for the gate and pump, but not the defective culvert and dike. While
    the record shows that in 2006/2007 the PUD participated in discussions to replace the
    59
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    culvert, those discussions were instigated by a request from Mr. Maslonka and also
    included the Port and Diking District. Furthermore, the 2008 contract with the Diking
    District expressly disclaims any legal duty by the PUD to maintain or replace the culvert.
    Thus, as to Parcel 1, the record potentially supported a prima facie case against the Port
    (as the railroad’s successor in interest), but not the PUD.
    At oral argument, the Maslonkas’ counsel suggested that the PUD is legally
    responsible for the flooding to Parcel 1 simply because Box Canyon elevates the river
    above its natural high water mark. But, the Maslonkas’ first amended complaint only
    alleges that it is the failure of the diking improvements that causes the flooding to Parcel
    1. The complaint does not allege that the PUD has any fault for flooding Parcel 1
    independent of any duty it has to maintain the diking improvements. Because we affirm
    dismissal of all claims pertaining to Parcel 1 on the alternative ground of failure to
    present a genuine issue of material fact as to duty and causation, we do not address the
    trial court’s orders dismissing the tort and taking claims against Parcel 1 under various
    defenses.
    E. CLAIM OF NEGLIGENCE—PARCEL 2
    The final cause of action dismissed by the trial court was the Maslonkas’ claim of
    negligence related to Parcel 2. The trial court initially denied the PUD’s motion to
    dismiss the trespass, nuisance, and negligence claims under the statute of limitations. On
    reconsideration, the court granted the motion for summary judgment as to the negligence
    60
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    claim on Parcel 2 only, but did not specify that it was doing so on statute of limitations
    grounds. This court can infer that the court granted reconsideration under the statute of
    limitations because that was the only argument raised by the PUD in its motion for
    reconsideration. The judge specifically limited the order to Parcel 2 because the PUD did
    not argue Parcel 1 in its motion for reconsideration.
    On appeal, the Maslonkas do not assign error to the order on reconsideration and
    did not raise the order in their opening brief. The PUD claims that review of the issue is
    barred and that dismissal of the negligence claim as to Parcel 2 must be affirmed. The
    PUD is correct. While the Maslonkas included a copy of the order in their notice of
    appeal, they did not include it in their assignments of error and did not argue it in their
    opening brief.
    This court typically does not review issues that fail to meet the briefing
    requirements of RAP 10.3(a)(4), (6). E.g. Holland v. City of Tacoma, 
    90 Wn. App. 533
    ,
    538, 
    954 P.2d 290
     (1998) (“Passing treatment of an issue or lack of reasoned argument is
    insufficient to merit judicial consideration.”). While the Maslonkas argue the issue in
    their reply brief, such argument is too late to merit review. “[A] contention presented for
    the first time in the reply brief will not receive consideration on appeal.” Fosbre v. State,
    
    70 Wn.2d 578
    , 583, 
    424 P.2d 901
     (1967).
    61
    No. 37747-4-III
    Maslonka, et al v. PUD No. 1, et al
    F. CONCLUSION
    The superior court dismissed all of the Maslonkas’ claims against the PUD on
    summary judgment. We affirm dismissal of all claims related to Parcel 1 for failure to
    raise a genuine issue of material fact. We also affirm summary judgment dismissal of the
    negligence claim for Parcel 2 because the Maslonkas did not assign error to that order.
    We reverse dismissal of the claims for inverse condemnation, trespass, and nuisance as to
    Parcel 2, and remand for further proceedings.
    _________________________________
    Staab, J.
    WE CONCUR:
    _________________________________
    Fearing, J.
    _________________________________
    Lawrence-Berrey, J.
    62