Carson Harbor Village, Ltd., a Limited Partnership Dba Carson Harbor Village Mobilhome Park, Plaintiff-Counter-Defendant-Appellant v. Unocal Corporation, a Delaware Corporation, Defendant-Cross-Defendant, and City of Carson, Defendant-Cross-Defendant-Cross-Claimant-Appellee Case Brief
Complete case briefs with LSD+
Every LSD.Law brief pairs a full IRAC analysis with opinion summaries at three levels of depth, written by a team of Harvard Law and MIT graduates - a quick synopsis when you are pressed for time, the complete reasoning when you need to go deep.
Adaptive Case Views
Toggle between Flash, Standard, and Expanded. Get what you need, when you need it.
Exam-Ready IRAC Format
We deliver the precise structure professors look for in exam answers.
Complex Cases, Clarified
We break down dense legal reasoning into something digestible, helping you grasp core concepts.
Case Brief Summary & Legal Analysis
tl;dr: A current landowner sued a prior owner for cleanup costs under CERCLA. The court held that the gradual, passive migration of contaminants through soil during the prior owner’s tenure did not constitute a “disposal,” thereby absolving the prior owner of liability as a potentially responsible party.
Legal Significance: This case established the Ninth Circuit’s influential interpretation of “disposal” under CERCLA, holding that the term does not include passive soil migration. This holding narrows the scope of liability for past landowners who did not actively contaminate the property.
Carson Harbor Village, Ltd., a Limited Partnership Dba Carson Harbor Village Mobilhome Park, Plaintiff-Counter-Defendant-Appellant v. Unocal Corporation, a Delaware Corporation, Defendant-Cross-Defendant, and City of Carson, Defendant-Cross-Defendant-Cross-Claimant-Appellee Law School Study Guide
Use this case brief structure for your own legal analysis. Focus on the IRAC methodology to excel in law school exams and cold calls.
Case Facts & Court Holding
Key Facts & Case Background
Carson Harbor Village, Ltd. (“Carson Harbor”) purchased a 70-acre mobile home park in 1983 from the Partnership Defendants, who had owned it since 1977. Prior to and during the Partnership’s ownership, Unocal Corporation operated petroleum production facilities on the site, leaving behind tar-like and slag materials. In 1993, while attempting to refinance, Carson Harbor discovered that these materials, containing lead and total petroleum hydrocarbons (TPH), had contaminated a 17-acre wetlands area on the property. Evidence suggested the contaminants were passively migrating through the soil. Acting under the oversight of the Regional Water Quality Control Board, Carson Harbor excavated the materials and contaminated soil at a cost of approximately $285,000. Carson Harbor then sued the Partnership Defendants under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) to recover these costs, arguing they were liable as owners “at the time of disposal.” The Partnership Defendants contended that no “disposal” occurred during their ownership because the contamination was pre-existing and its subsequent movement was merely passive migration.
Court Holding & Legal Precedent
Issue: Does the gradual, passive migration of pre-existing hazardous substances through soil constitute a “disposal” under CERCLA § 107(a)(2), thereby making a past, non-polluting landowner a potentially responsible party?
No. The court held that the passive migration of contaminants through soil Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercita
IRAC Legal Analysis
About IRAC analysis
IRAC (Issue, Rule, Analysis, Conclusion) is the structure professors expect in exam answers. Each LSD.Law brief states the issue, the governing rule with citations, the court's application of that rule, and the conclusion - the same reasoning pattern you will use on exams and in practice.
Legal Issue
Does the gradual, passive migration of pre-existing hazardous substances through soil constitute a “disposal” under CERCLA § 107(a)(2), thereby making a past, non-polluting landowner a potentially responsible party?
Conclusion
This decision significantly shapes CERCLA liability within the Ninth Circuit by narrowing Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute
Legal Rule
Under CERCLA, the term "disposal," defined by reference to RCRA at 42 Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, c
Legal Analysis
The Ninth Circuit, sitting en banc, undertook a detailed statutory analysis to Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consec
Flash-to-Full Case Opinions
Flash Summary
- A private party’s cleanup costs are “necessary” under CERCLA if there