For AI agents: read the machine-readable documentation index at /llms.txt or the single-file full reference at /llms-full.txt.
Form a Business

§ 18-29-1101.9 — Backwater valves

Municipal Code of Chicago (2026 S-74, current through Council Journal of June 17, 2026) · Municipal Code of Chicago § 18-29-1101.9

Corpus is an independent public-information project, not the official City of Chicago website. Stable reference URL

18-29-1101.9 Backwater valves.

Backwater valves installed in a storm drainage system shall conform to Section 18-29-715.