1701.3 Site Survey — 2025 California Mechanical Code

California Mechanical Code (Title 24, Part 4) · 2025 edition · updated 2026-09-25 · California

CBSC: official editions, supplements and errata

Italicized text is a California amendment to the model code, as printed in the official publication.

Cite as: 2025 California Mechanical Code (Title 24, Part 4) § 1701.3 · Effective January 1, 2026 · Official source: Building Standards Commission

A site survey shall be conducted prior to designing the geothermal system. The requirements for construction documents shall be defined by the Authority Having Jurisdiction. Where no guidance is provided, the following information shall be provided:

CHAPTER 17

GEOTHERMAL ENERGY SYSTEMS AND AMBIENT TEMPERATURE LOOPS

(1) Ground-heat exchanger dimensions.

(2) Grout or sealing specifications, as applicable.

(3) Dimensions from building to water well, ground-heat exchanger, or submerged heat exchanger.

(4) Operating temperatures and pressures.

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▸Contents — California Mechanical Code (Title 24, Part 4)

California Mechanical Code (Title 24, Part 4)

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