1712.4 Setbacks — 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) § 1712.4 · Effective January 1, 2026 · Official source: Building Standards Commission

Open-loop ground-heat exchangers shall maintain the following minimum setbacks or at distances specified by the Authority Having Jurisdiction:

(1) Ten feet (3048 mm) horizontally from a pressure-tested sewer lateral into a building.

(2) Twenty feet (6096 mm) horizontally from a non-pressure tested sewer lateral into a building.

(3) Three feet (914 mm) horizontally from buried utilities such as electrical, gas, or water.

(4) Fifty feet (15 240 mm) from a water well.

(5) Fifty feet (15 240 mm) from a septic tank and 100 feet (30 480 mm) from a subsurface sewage leaching field.

(6) One hundred feet (30 480 mm) from a spring.

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

California Mechanical Code (Title 24, Part 4)

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