1. (a) The space between the casing and the carrier pipe has a full grout seal, unless otherwise precluded by federal regulations.
2. (b) Full concrete encasement of the buried casing pipe designed for applicable wheel load requirements on the primary and secondary roads.
3. (c) Mortar-coated steel pipe without cathodic protection may be used only in benign soil environments. A soil corrosivity analysis shall be submitted by the applicant.
4. (d) Non-metallic casing pipe with concrete encasement is used.

The Department has determined that cathodic protection to buried steel casing pipe is NOT a preferred method of corrosion control. If cathodic protection is required, it shall be provided by sacrificial magnesium anodes. The Department may waive cathodic protection to casing pipe if:

Note: Authority cited: Section 12899.9, Water Code. Reference: Sections 12899, 12899.1(a), 12899.1(c) and 12899.2, Water Code.

History

1. New section filed 4-22-2015; operative 7-1-2015 (Register 2015, No. 17).