CASQA is the leading professional association in the stormwater management field. We provide our members with the most current information in our rapidly changing industry, and we are dedicated to maintaining excellence in California stormwater management programs.

Membership Types

There are two types of CASQA memberships:

1. Regular Membership

  • For NPDES stormwater permit holders (Industrial General Permit, Small MS4 (Phase II) General Permit, Construction General Permit)
  • Includes voting rights for the Board of Directors and changes to the CASQA Bylaws

2. Affiliate Membership

  • For those who want to participate, but do not hold NPDES stormwater permits
  • Does not include voting rights

Learn more about the benefits of membership

Learn more about the membership categories and dues


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