Conference Overview

We look forward to seeing you September 15-17, 2025, at the Pasadena Convention Center in Pasadena, CA for our 21st CASQA Annual Conference!

2025 Conference Theme

Resilient Watersheds, Innovative Solutions

CASQA provides a collaborative space where the preeminent thought leaders in California come together to share knowledge, build community, and advance the future of stormwater management. Our 2025 conference theme, Resilient Watersheds, Innovative Solutions, emphasizes the importance of resilience – not just in the natural environment, but in the people and communities that steward our watersheds. Resilient watersheds are shaped by our ability to adapt, learn from each other, and implement innovative solutions that advance sustainable stormwater management and foster long-term stewardship.

We invite you to join us in Pasadena, where we will learn from each other, share solutions, and work together to shape a more resilient future for our watersheds and communities.

Publications | Conference Agenda

CASQA 2025 Registration Brochure – to be posted July 2025
– Agenda changes after publication are not reflected in the agenda.

CASQA 2025 Conference Program – to be posted late August 2025
– Agenda changes after publication are not reflected in the agenda.
– The print version of the Conference Program is provided to attendees upon check-in at the conference.

2025 Conference Program Information

Spacing: small
  • Highlights
  • Daily Summary
  • Technical Program – Track Descriptions
  • Technical Program – Field Tour Details
  • 20210412 DirectorMarkPetrella Official 5x7 Full

    Plenary Session Keynote Address

    Mark Pestrella, Director, Los Angeles County Public Works

    Mark Pestrella is the Director of Los Angeles County Public Works, the nation’s largest municipal public works agency, with a focus on sustainable infrastructure and equitable service delivery. Public Works’ diverse operations encompass Water Resources, Transportation, Environmental Services, Construction Management, and Municipal Services. With an annual budget of $4.1 billion and a workforce of 4,000 employees, the agency provides vital public infrastructure services to more than 10 million people across a vast 4,000 square-mile service area.

    A native of Southern California, Mr. Pestrella attended California Polytechnic State University, San Luis Obispo, where he earned a Bachelor of Science in Civil Engineering. He is a 37-year veteran of Public Works and a licensed professional engineer.

    Capstone Session

    The Capstone Session is one of the premier conference events, where visionary leaders come together to engage in transformative discussions that impact the future of sustainable stormwater management. This all attendees event will feature an exceptional lineup of thought leaders and promises to be a powerful conclusion to the conference, leaving participants inspired and empowered to drive change.

    Participants: This year’s additional speaker lineup will be shared soon!

    Karen Cowan Executive Director, CASQA