The California Stormwater Quality Association (CASQA) is a professional member association that advances sustainable stormwater management protective of California water resources.

Strategic Plan & Vision

Programs & Initiatives

Stormwater quality management involves a large and diverse range of challenges, needs, and information. Find ready access to the most pertinent topics and up-to-date resources for the stormwater quality practitioner.

Our training programs provide the steps to QSD/QSP and QISP qualification and renewal, as well as information for the CGP and IGP Trainer of Record (ToR) qualification process and course options.

CASQA is the leading professional association in the stormwater management field and is dedicated to excellence in California by working together. Membership provides significant value and multiple exclusive benefits.

CASQA members have exclusive access to publications and work products to stay current on legislation and regulatory initiatives, as well as event updates, and position opportunities with member organizations.

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CASQA 2025 Annual Conference

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

Call for Abstracts
Will open in Spring 2025

Attendee Registration (general attendees, speakers, panelists, poster presenters)
Will open in Spring 2025
Early registration ends Mon Aug 4, 2025 Pacific – late fees in effect Tue Aug 5, 2025
Registration Closes: Friday Sep 5, 2025 at 5pm Pacific

Sponsorship
Review our many sponsorship opportunities – some have limited availability so act quick to secure the one you want!
Purchase Deadline: Friday Aug 15, 2025 at 5pm Pacific

Exhibit Space
An opportunity to highlight the types of goods and services sought by over 1000 stormwater professionals!
Purchase Deadline: Friday Aug 1, 2025 at 5pm Pacific

Resources

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CASQA develops and publishes Best Management Practices (BMP) Handbooks for use by organizations to be in compliance with stormwater permits. Online subscriptions, including SWPPP templates, are available for the Construction, Development, and Industrial & Commercial BMP Handbooks.

Water Quality Priorities

Four clear statewide water quality priorities have been identified: Pathogen Indicators (e.g., Bacteria), Biological Integrity / Biostimulatory Substances; Current Use Pesticides, and Trash. CASQA has prioritized developing solutions for each of these water quality priorities.

Our Water, Our World (OWOW)

This award-winning partnership is an excellent opportunity to educate the public and reduce toxicity in waterways from current use pesticides. Several municipalities utilize OWOW as a cost-efficient way to meet permit requirements.

Upcoming Events

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Jan 07 2025 - 10:00AM to 11:00AM

Funding Subcommittee Meeting

Jan 08 2025 - 9:00AM to 10:00AM

Industrial Subcommittee Meeting

Jan 10 2025 - 10:30AM to 12:00PM

Conference Subcommittee Meeting

Get Involved

Become a Board Member

Join a Subcommittee

Learn More About Us

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