Board of Directors & Committees

The 11 individuals who comprise the CASQA Board of Directors are elected by the membership for staggered two-year terms, with a maximum of three consecutive terms. Officers of the Board are: Chair, Vice-Chair, Treasurer, and Secretary. Officers are elected by the Board of Directors and serve two–year terms. The Board meets bi-monthly at various locations throughout California and by conference call the other months. View the current Board of Directors' biographies below, as well as their term timelines. If you are a CASQA member and would like to help lead the direction of CASQA, consider running for the Board (elections occur each Fall).

The Board of Directors creates committees that accomplish the goals of CASQA, each consisting of two or more directors, and other persons that the directors may appoint. Standing Board Committees are: Audit, Awards, Bylaws, Events, Executive Program, Finance, Membership, and Vision. View details on the Board Committees below.


CASQA Organizational Chart (Feb 2019)
2020 Board of Directors Contact Information (Mar 2020)
Board of Directors term timelines (Mar 2020)
List of current and past Chairs of the California Stormwater Quality Task Force (SWQTF) and California Stormwater Quality Association (CASQA)
The Board Resources page can only be viewed by CASQA Board members who have logged into their account. If you are a Board member, log in to view the resources.

Executive Management

Geoff Brosseau, Executive Director: Manages the day-to-day activities of CASQA, serves as the primary liaison with members, government agencies, and other organizations, and helps to set and achieve the vision for the future and growth of CASQA. 

Karen Cowan, Assistant Executive Director: Supports the Executive Director, provides additional resources to help set and achieve the vision, helps to grow CASQA as an organization, and acts in the Executive Director’s stead.

Notice - Nov 12, 2020: Executive Director Transition

With deep appreciation for his years of outstanding leadership, the California Stormwater Quality Association (CASQA) Board of Directors announces that Geoff Brosseau will transition from the role of Executive Director to that of Executive Advisor, and Karen Cowan will assume the role of Executive Director, effective January 1, 2021. 

On behalf of the Board of Directors, please see the press release announcing the Executive Director transition for CASQA.

Board of Directors

Amanda Carr, Chair

Amanda Carr is the Deputy Director of OC Environmental Resources for the County of Orange. The County serves as the lead permittee for the 34 cities of Orange County under municipal NPDES permits issued by the Santa Ana and San Diego Regional Water Quality Control Boards. Amanda has 16 years of experience in water quality and stormwater regulation, with a focus on Total Maximum Daily Loads and municipal NPDES program development through collaborative stakeholder processes. She holds a Masters of Science in Environmental Science and a Masters of Public Affairs in Environmental Policy and Natural Resource Management from the Indiana University School of Public and Environmental Affairs.

Mark Lombos, Vice Chair

Mark is a Principal Engineer with the Los Angeles County Public Works, Stormwater Quality Division. He has over 20 years of experience in the field of water resources and stormwater management, including hydrology, project management, and stormwater quality planning, all with Public Works. In his current role, he manages the County’s compliance with the MS4 Permit and TMDL requirements, which includes collaborating with ot her agencies for the funding and implementation of stormwater programs and projects. Mark received his B.S. degree in Civil and Environmental Engineering from the University of California, Irvine (Zot! Zot!) and is a registered Civil Engineer. 

Richard Boon, Treasurer

Richard Boon is Chief of the Watershed Protection Division, Riverside County Flood Control and Water Conservation District. He has 29 years of experience in water quality protection and management gained in local and national government both in the United Kingdom and United States. Prior to joining the District in 2017, Richard managed the Orange County Stormwater Program. Richard served as CASQA Board Chair in 2012 and 2013.

Jamison Crosby, Secretary

Daniel Apt, Director

Daniel is founder and President of Olaunu, a surface water quality consulting company based in San Clemente, California. He has over 25 years of experience in stormwater management, water quality, and water resources and specializes in LID and Green Infrastructure, stormwater capture and use, watershed and integrated water resources planning, and MS4 permit assistance. Daniel received his Bachelor’s degree from the University of California, Irvine and his Master’s degree from the University of Miami. Daniel is past CASQA Chair, Chair of CASQA’s Vision Committee, project manager for CASQA’s Stormwater Funding Resources website, and is the co-developer and CASQA’s project manager of the California LID-GI website. Daniel also serves as the consultant project manager of the Southern California Stormwater Monitoring Coalition LID Evaluation and Analysis Network (SMC CLEAN).

Brian Currier, Director

Brian holds B.S. and M.S. degrees in Environmental Engineering from the University of California, Davis, and is a California-licensed Professional Engineer. Brian has been involved in stormwater research since 1997. He is currently a research engineer with the Office of Water Programs and occasionally teaches for the Department of Civil Engineering at California State University, Sacramento.

Delyn Ellison-Lloyd, Director

Delyn graduated with a bachelor of science degree with an emphasis in biology from the University of Oregon. She worked for Sacramento County for 11 years, first in the Environmental Management Department as a hazardous materials specialist and then as an environmental compliance specialist in the County’s Business Environmental Resource Center. She returned to school and obtained her masters of science degree in civil engineering from California State University, Sacramento, and worked as a senior engineer with the City of Roseville’s Stormwater Management Program for 14 years. As of March 2019, Ms. Ellison-Lloyd is working for Municipal Consulting Group, a consulting firm based in Citrus Heights, California.

Dalia Fadl, Director

Dalia has a B.S. in Civil & Environmental Engineering from UC Berkeley and over 16 years of experience working as an engineer in the stormwater management and regulatory fields. In her current role, Dalia manages the Stormwater Division in the City of Rancho Cordova’s Public Works Department. Dalia has extensive knowledge and experience with stormwater quality regulations and National Pollutant Discharge Elimination System (NPDES) permit compliance. She is a registered engineer in the State of California. 

Cathleen Garnand, Director

Cathleen manages the County of Santa Barbara’s Project Clean Water program, overseeing the County’s implementation of the NPDES Municipal General Permit. Cathleen has been a part of the County’s Project Clean Water program since 1999, is involved with the CASQA Phase II Subcommittee, and works closely with the Santa Barbara County Association of MS4 Managers and other Central Coast municipal permittees. Cathleen has a B.S. in Environmental Resources Engineering from Humboldt State University.

Kirsten Struve, Director

Dave Tamayo, Director

Dave Tamayo has been with Sacramento County’s Stormwater Program since 1995. In addition to being a CASQA Board member, he is chair of CASQA’s pesticides subcommittee. He’s been involved in many facets of stormwater, but for the last 15 years he’s had a focus on local, state, and federal pesticide and pest management policy. Dave is vice-president of the California Structural Pest Control Board, and an elected official as a Board member of the Sacramento Municipal Utility District.  He has a BA in zoology from UC Berkeley and an MS in entomology from the University of Florida.


Committees of the Board of Directors


Oversees the annual audit of CASQA’s finances and policies and procedures, and preparation of tax returns.

Chair: Amanda Carr


Identifies and recognizes exemplary leadership, outstanding projects, activities, and contributions to the field of stormwater quality management

Chair: Jamison Crosby


Reviews the Bylaws annually and makes recommendations for revisions as necessary to ensure smooth and efficient operation of CASQA.

Chair: Jamison Crosby


Ensures a coordinated approach is used to plan, design, and conduct all CASQA events, including the annual conferences, quarterly General Membership meetings / webcasts, and trainings. Plans the quarterly meetings / webcasts.

Chair: Kirsten Struve

Executive Program

Comprises no more than twenty-seven (27) committee members and directs the technical work of the association through subcommittees.

Chair: Mark Lombos


Manages CASQA’s fiscal resources, including proposing the annual operating budget and overseeing all financial transactions.

Chair: Richard Boon


Retain existing members, outreach to potential new members, and improve membership value.

Chair: Cathleen Garnand


Maintains the CASQA Vision, oversees development and achievement of annual objectives that support the Vision, and manages the relationship of the Vision to other organizations' strategies for stormwater (e.g., Water Boards' STORMS).

Chair: Daniel Apt