Dave was the Seattle Office’s Managing Principal from 2017 to 2023. He focuses his practice on environmental litigation and compliance counseling, including air and water quality regulation, hazardous waste handling and remediation, and contaminated site cleanups under federal and state laws.

A cornerstone of Dave's practice is advising clients on national air quality and climate change issues. He represents businesses in connection with enforcement proceedings, agency rulemakings, and permitting issues under the Clean Air Act and similar state air laws and regulations. His work has included a wide range of CAA compliance issues, including Title V, NSR/PSD, NSPS, and NESHAP/MACT projects. He also has significant experience in matters related to the regulation of mobile and off-road sources, such as California’s off-road diesel and large spark-ignition regulations.

Dave also devotes a significant portion of his practice to handling complex environmental remediation and restoration projects. He has extensive experience in successfully and efficiently prosecuting and defending cost recovery and natural resource damages claims under CERCLA and state Superfund laws.