The Storm Water utility is a separate and distinct fund, found in Chapter 1046 of the Codified Ordinances of Trenton.  The most recent rate ordinance for Storm Water was Ord. 17-2014, passed on November 20, 2014.

The City of Trenton is included in the Butler County Storm Water District which makes an annual payment to the Ohio EPA on behalf of all City of Trenton property owners.  The County compiles the annual report for the City of Trenton which fulfills the requirements of the National Pollutant Discharge Elimination System (NPDES) Phase 2 Permit, and the General Plan of Drainage: Tier 1.  This report as well as the Butler County Storm Water District Water Management Plan are available on the Butler County Storm Water District webpage.