Matilla v. NorthWestern Company

CourtDistrict Court, D. Montana
DecidedApril 8, 2025
Docket2:23-cv-00079
StatusUnknown

This text of Matilla v. NorthWestern Company (Matilla v. NorthWestern Company) is published on Counsel Stack Legal Research, covering District Court, D. Montana primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Matilla v. NorthWestern Company, (D. Mont. 2025).

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF MONTANA BUTTE DIVISION

BAMBI MATTILA, Plaintiff, CV 23-79-BU-SPW Vs. ORDER ON MOTION TO STRIKE SUMMARY JUDGMENT EVIDENCE NORTHWESTERN COMPANY, dba NORTHWESTERN ENERGY Defendant.

On February 7, 2025, NorthWestern Energy (“North Western”) filed a motion for summary judgment. (Doc. 35). On March 3, 2025, Bambi Mattila (“Mattila”) filed a motion to strike NorthWestern’s summary judgment evidence. (Doc. 47). Mattila moves to strike five affidavits in support of North Western’s motion because they were submitted by previously undisclosed witnesses. (Doc. 48 at 8). In addition, Mattila moved to strike the affidavits of two previously disclosed witnesses because the statements in their affidavits lack a proper foundation, contain inadmissible hearsay, and are comprised of conclusory statements. (Jd). North Western filed a response on March 14, 2025. (Doc. 50).

The motion to strike has been fully briefed and is ripe for review. (See Docs. 48 and 50). For the following reasons, the Court grants in part and denies in part Mattila’s motion. I. Background Bambi Mattila began working as a Real Time Scheduler for NorthWestern Energy in 2008. (Doc. 4 at JJ 8-9). As a Real Time Scheduler, Mattila’s role primarily involved trading energy in the hourly market. (/d. at 10). Throughout 2022, Mattila began to believe that male employees in similarly situated roles were receiving a higher salary, given larger raises, and receiving additional training. □□□□ at 22-26). Based on this belief, Mattila filed a Charge of Discrimination with the Montana Human Rights Bureau (“MHRB”) and the federal Equal Employment Opportunity Commission (“EEOC”) on January 10, 2023. (Ud. at | 28). On August 7, 2023, the MHRB concluded their investigation, finding no reasonable cause to believe unlawful discrimination occurred as alleged in Mattila’s complaint. (Doc. 50-1 at 7). On the same day, the EEOC adopted the findings of the MHRB and did not determine the merits of Mattila’s claims. (Doc. 37-9). The EEOC issued a Notice of Right to Sue letter to Mattila. (/d.). Mattila now alleges claims under the Equal Pay Act (Count J) and claims based on discrimination under Title VII (Counts II and V). (Doc. 4; Doc. 30). Mattila alleges that her salary and advancement have been artificially stifled to

allow less experienced male employees to “catch up” to her higher salary. (Doc. 42

at 2). Mattila claims that NorthWestern intentionally gave male employees better training and assignment opportunities so that males would advance more quickly in the company and receive higher pay raises. (Doc. 42 at 2.) Discovery in this matter ended on January 31, 2025. (See Doc. 29). Following the close of discovery, NorthWestern filed a motion for summary judgment and brief in support. (Docs. 35, 36.) As part of North Western’s motion for summary judgment, it submitted five affidavits from previously undisclosed witnesses: Doug Peoples, Lisa Barkell, Alex Murphy, Chris Benski, and Robert Stagnoli. (Docs. 37-1; 37-2; 37-4; 37-5; 37-6). NorthWestern also submitted affidavits from two previously disclosed witnesses, Jeremy Clemens and Chris Forbeck. (Docs. 37-2; 37-3). II. Discussion In response to NorthWestern’s motion for summary judgment, Mattila filed a motion to strike its summary judgment evidence. (Doc. 47). Mattila argues that under Federal Rules of Civil Procedure 26 and 37, NorthWestern should be precluded from using the affidavits of the untimely disclosed witnesses. (Doc. 48 at 14). In addition, Mattila contends that the affidavits of Clemens and Forbeck should be excluded from consideration because they contain inadmissible hearsay,

conclusory statements, and evidence that lacks foundation or personal knowledge of either affiant. (Doc. 47 at 20, 25). The Court will first evaluate whether the affidavits of the five previously undisclosed witnesses violated the timing requirements of Rule 26 and if they should be excluded under Rule 37. Then the Court will determine whether the affidavits of the timely disclosed witnesses, Clemens and Forbeck, should be excluded. A. Late Disclosed Witness Affidavits NorthWestern’s motion for summary judgment partially relies on affidavits from five previously undisclosed witnesses: Doug Peoples, Lisa Barkell, Alex Murphy, Chris Benski, and Robert Stagnoli. (Doc. 48 at 8). Mattila argues that NorthWestern had a duty to disclose these fact witnesses under Rule 26 and in response to Mattila’s discovery requests. (Doc. 48 at 9). Mattila contends that under Rule 37, the late disclosure requires striking any evidence the previously undisclosed witnesses provided. (/d. at 15). In response, NorthWestern argues that sanctions are inappropriate because the affidavits were provided by fact witnesses who were fully known to Mattila and disclosed by her as individuals with relevant discoverable information. (Doc. 50 at 6-7). Rule 26 requires parties to disclose the names of individuals likely to have discoverable information that the disclosing party may use to support its claims or defenses. Fed. R. Civ. P. 26(a)(1). “Ifa party fails to provide information or identify

a witness as required by Rule 26(a) or (e), the party is not allowed to use that information or witness to supply evidence on a motion, at a hearing, or at a trial, unless the failure was substantially justified or is harmless.” Fed. R. Civ. P. 37(c)(1) Rule 26(e) requires parties to supplement their disclosures in a “timely manner,” but that phrase is not defined in the rule and depends on the facts and circumstances of the case. Markson v. CRST Int'l, Inc., 2021 WL 5969519 at *1 (C.D. Cal. Nov. 23, 2021). Supplemental disclosures served after the close of discovery are presumptively untimely. Wong v. Regents Univ. of California, 410 F.3d 1052, 1062 (9th Cir. 2005). Witness disclosures must be made sufficiently before the close of discovery for the party-opponent to have a reasonable opportunity to pursue discovery of these witnesses. Id. When a party fails to timely supplement their disclosures, a court may impose sanctions under Rule 37 by evaluating the following factors: “(1) prejudice or surprise to the party against whom the evidence is offered; (2) the ability of that party to cure the prejudice; (3) the likelihood of disruption of trial; and (4) bad faith or willfulness in not timely disclosing the evidence.” Liberty Ins. Corp. v. Brodeur, 41 F.4th 1185, 1192 (9th Cir. 2022). “The party facing sanctions bears the burden of proving that its failure to disclose the required information was substantially justified or is harmless.” R & R Sails, Inc. v. Ins. Co. of Pa., 673 F.3d 1240, 1246 (9th Cir. 2012).

Discovery in this matter closed on January 31, 2025. (Doc. 29 at 2). The affidavits of the five previously undisclosed witnesses were not provided until February 7, 2025, as support for NorthWestern’s motion for summary judgment. (See Doc. 37). Because the disclosures were made after the end of discovery, they are untimely. However, Rule 37 sanctions are unnecessary because the late disclosures were harmless. As NorthWestern demonstrates in their response, Mattila knew these individuals had discoverable information relevant to her claims based on her discovery responses.

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Matilla v. NorthWestern Company, Counsel Stack Legal Research, https://law.counselstack.com/opinion/matilla-v-northwestern-company-mtd-2025.