Columbia Combined sewers ordinance (§ 22-215.4)
Chapter 22: Public Works and Improvements · Article VI. Sewers and Sewage Disposal
In short: Combined sewers, which carry stormwater and sewage together in one pipe, are prohibited.
Our plain-English summary, not the official text or legal advice. The ordinance below is what counts.
Combined sewers shall be prohibited.
Official source: City of Columbia official Code of Ordinances (online): look up Sec. 22-215.4
Text from Supplement 139 (September 3, 2026).
Last checked November 1, 2026. The city's official copy controls; this page is a reading copy, not legal advice.