Noel Reyes-Muñoz, et al. v. Puerto Rico Aqueduct & Sewer Authority

Summary

The United States District Court for the District of Puerto Rico denied without prejudice Plaintiffs’ motion in limine to exclude the expert testimony of environmental engineer José A. Martí-Carvajal under Federal Rule of Evidence 702. The Court held that Martí was qualified and that his methodology and opinions were sufficiently reliable and relevant, while concluding that Plaintiffs’ challenges primarily concerned the weight and credibility of the testimony and could be addressed through cross-examination, contrary evidence, and jury instructions.

Holdings

1. Martí was sufficiently qualified by his education, professional credentials, and decades of experience in wastewater systems, environmental matters, and regulatory compliance to express the proffered expert opinions.
2. The challenged rebuttal testimony satisfied Rule 702 because Martí applied established environmental-engineering principles to the opposing expert's analysis and the court found no impermissible analytical gap between the available data and his opinions.
3. The challenges did not justify exclusion because they primarily concerned the weight and credibility of the testimony and could be tested through cross-examination, contrary expert evidence, and jury instructions.
4. The proposed testimony was proper rebuttal evidence because it addressed the same subject matter as the opposing expert's testimony and was intended to contradict or rebut that testimony.

Questions Presented

1. Whether José A. Martí-Carvajal was qualified under Federal Rule of Evidence 702 to offer the challenged expert opinions.
2. Whether Martí's rebuttal methodology and opinions satisfied Rule 702's requirements of relevance, sufficient factual basis, reliable principles and methods, and reliable application.
3. Whether plaintiffs' challenges to Martí's credentials, methodology, factual foundation, and alleged legal conclusions warranted exclusion of his expert testimony before trial.
4. Whether Martí's testimony was proper rebuttal evidence under Federal Rule of Civil Procedure 26(a)(2)(D)(ii).

Disposition

dismissed