Summary
The United States District Court for the Northern District of California addresses Pamela Jarose’s motion to exclude the supplemental expert report of Joseph Niland and her motions in limine in litigation concerning liability for hazardous-waste cleanup costs in Eureka, California. The court grants the motion to exclude the supplemental report and grants the motions in limine in part and denies them in part. The action involves CERCLA, California’s HSAA, contract, nuisance, and equitable-indemnity claims, with the disputed evidence largely concerning groundwater contamination, remediation costs, and the operation of a sump system.
Topics
Practice areas
Questions Presented
- Whether the opinions in Joseph Niland's initial expert report concerning cleanup costs, the conceptual site model, and the sump and storm-drain systems should be excluded under Federal Rule of Evidence 702.
- Whether testimony by a late-disclosed witness should be limited to authentication and whether documents produced after the close of discovery should be excluded under Rules 26 and 37.
- Whether Defendant's untimely allocation and failure-of-due-diligence affirmative defenses should be excluded for inadequate notice and prejudice.
- Whether Niland's supplemental expert report, served after the close of expert discovery, was permissible supplementation under Rule 26(e) or an untimely expansion of his opinions requiring exclusion under Rule 37(c)(1).
Holdings
- The cleanup-cost opinions and related exhibit were not shown to be so speculative, unreliable, or unsupported that exclusion was warranted. An expert may rely on data and assistance from others when the expert substantially participates in the work and the assistants do not exercise professional judgment beyond the expert's expertise.
- The opinions were not excluded because the record contained sufficient indicia of reliability and concrete data, and the identified analytical gaps primarily affected the weight of the testimony rather than its admissibility.
- The parties' agreement limiting John Wellik's testimony to authentication was enforced; any effort to offer testimony beyond authentication would require a specific objection at trial.
- Documents not properly disclosed before the close of discovery were excluded under Rule 37(c)(1). Rule 26(e) creates a duty to correct inaccuracies or fill genuine gaps based on previously unavailable information, not a right to add new evidence, opinions, or analysis after the disclosure deadline.
- The motion to exclude the allocation defense was denied despite Defendant's failure to plead it timely because the defense was closely related to the central dispute over assigning or apportioning cleanup liability and Plaintiff could not establish meaningful prejudice or lack of notice.
- The motion to exclude Defendant's failure-of-due-diligence affirmative defense was granted because the defense was omitted from the Answer, was not sufficiently related to the principal objective of the litigation or the timely asserted defenses, and gave Plaintiff inadequate notice and an inability to conduct relevant discovery.
- The supplemental expert report was excluded under Rule 37(c)(1) because it materially expanded and strengthened the original opinions with new data, testing, theories, and analysis after the close of expert discovery, and the late disclosure was neither substantially justified nor harmless.
Key quotations
“Rule 26(e) creates a duty to supplement, not a right to do so.”
“Vigorous cross-examination, presentation of contrary evidence, and careful instruction on the burden of proof are the traditional and appropriate means of attacking shaky but admissible evidence.”
“The supplementation requirement is only intended to ‘correct[] inaccuracies, or fill[] the interstices of an incomplete report based on information that was not available at the time of the initial disclosure.’”
Factual background
The action concerns PCE and other hazardous-waste contamination near the Humboldt County Civic Center in Eureka, California. The County acquired the contaminated Braun Parcel from John R. Braun in 1993 through inverse condemnation, under a stipulated judgment assigning Braun responsibility for cleanup costs originating on the parcel until specified regulatory certifications were obtained. Subsequent investigation identified possible contamination from other sources, including the County's Sign Yard and a courthouse sump system that discharged groundwater to a storm drain leading to Humboldt Bay. The parties disputed the Estate's contractual and statutory responsibility for groundwater remediation and the extent to which contamination was attributable to the Braun Parcel or other sources.
Procedural history
The parties litigated CERCLA, HSAA, nuisance, breach-of-contract, and equitable-indemnity claims concerning hazardous-waste cleanup liability. Fact and expert discovery closed in January and March 2020. After cross-motions for summary judgment, the court granted Plaintiff summary judgment on all but two of Defendant's claims, leaving only contract-based claims. The court then resolved Plaintiff's motions in limine and motion to exclude the supplemental expert report.