Cal. Health & Safety Code § 25230.6
(a)
(b) The treated wood waste shall be accumulated in a manner that is protected from run-on and runoff, and placed on a surface sufficiently impervious to prevent, to the extent practical, contact with and leaching to soil or water, which may be accomplished by any one of the following:
(1) The treated wood waste may be accumulated when all the following requirements are met:
(2) The treated wood waste may be accumulated in containers no longer than one year from the date the treated wood waste is generated or received from another handler if the containers are all of the following:
(4) The treated wood waste may be accumulated no longer than 180 days from the date the treated wood waste is generated or received from another handler on a containment surface and all the following requirements are met:
(C)
(f) Treated wood waste generated incidental to the maintenance of a household and accumulated by the resident of the household at the site of generation is exempt from the accumulation requirements of this section if both of the following requirements are met:
(g) Treated wood waste generated incidental to the operation of a business accumulated at the site of generation for a period not to exceed 30 days is exempt from the accumulation requirements of this section if both of the following conditions are met: