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CGA’s Standard Practice Series bridges the uncertainties in California State Standards by clearly defining prudent and standard operating procedures, as practiced in the general groundwater industry. Articles are written to fill gaps in the current regulatory scheme and clarify relevant applications and interpretations of regulations. The Series describes accepted responsibilities of competent, licensed groundwater contractors and is not intended as an instruction manual for an untrained person. 

To see a specific standard, click on the standard practice title below:

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License Terms

Contractor - A Contractor implies an individual or firm who holds a valid California Contractor's license in the classifications of either C-57 or C61/D21. Any contractor member of CGA must be so licensed.

C-57 Contractor - A California Contractor licensed to install and repair water wells and pumps by boring, drilling, excavating, casing, cementing, and cleaning to provide a supply of uncontaminated water.

C-61/D21 - A California Contractor licensed to install and repair water pumps and Contractor - appurtenant materials.