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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Join us at the CASQA Annual Conference

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CASQA 2026 Annual Conference - Oct 26-28

Thank you for joining us for the 2025 conference in Pasadena! We look forward to seeing you at our CASQA 2026 Annual Conference to be held October 26-28 at the SAFE Credit Union Convention Center in Sacramento, California.

Key Dates for 2026

Attendee Registration
Early registration opens: Wednesday, May 20, 2026
Early registration ends: Tuesday, September 15, 2026
Registration Closes: Friday, Oct 16, 2026, at 5pm Pacific

Sponsorship
Some sponsorships have limited availability so act quickly!
Purchase opens: Wednesday, May 20, 2026 at 9am Pacific
Purchase Deadline: pending

Exhibit Space
Highlight the goods and services sought by over 1100 stormwater professionals!
Registration Opens: May 2026
Registration Deadline: pending

Call for Abstracts
Submittal Open: March 23, 2026
Submittal Deadline: May 4, 2026

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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Mar 10 2026 - 10:30AM to 12:00PM

Engagement and Education Subcommittee Meeting

Mar 10 2026 - 1:00PM to 2:00PM

Construction Subcommittee Meeting

Mar 10 2026 - 3:00PM to 4:30PM

Policy and Permitting Subcommittee Meeting

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