1101.3 Storm Water Drainage to Sanitary Sewer Pro-hibited — 2025 California Plumbing Code
California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-09-25 · California
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Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Plumbing Code (Title 24, Part 5) § 1101.3 · Effective January 1, 2026 · Official source: Building Standards Commission
hibited. Storm water shall not be drained into sewers intended for sanitary drainage.
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