Welcome to the

Serving the groundwater industry since 1948.

Join us

Our members include water well drilling contractors, pump contractors, geologists, hydrologists, engineers, government employees, manufacturers and suppliers, CGA programs and others interested in the groundwater and CGA programs.

Joining CGA shows your commitment to high industry standards, wise use and protection of groundwater and your support of programs that benefit industry professionals.

Apply for membership online or click here for a downloadable form.

Benefits of CGA membership

  • Savings on conventions and seminars
  • Group insurance discounts
  • New industry contacts
  • Recognition as a groundwater professional

Membership types

CGA has four member types:

  1. Technical — geologists, hydrologists, engineers and other scientific professionals
  2. Manufacturers and suppliers — companies providing groundwater equipment and services
  3. Contractors — water well drillers and pump specialists
  4. Government — employees and officials of federal, state, county and local government entities.

Membership rates

Individual Business Government Affiliate


$425 business
$50 for additional employees

$85 individual
$425 agency


    Items to note

    Membership is on a calendar year and valid from January 1 to December 31. No automatic renewals.

    Company membership: All employees of company become members — additional employee rate/option covers expense of mailing and other such contact for that member.

    Individual membership: Only the individual joining is a member.

    Warning: browser cookies disabled. Please enable them to use this website.

    Select membership level

    * Mandatory fields
    * Membership level
    1017 L Street, PMB #312, Sacramento, CA 95814-3805
    P: 916.231.2134 | E: info@groundh2o.org
    Powered by Wild Apricot Membership Software