Iowa Septic Hauling Compliance Guide

Iowa's septage hauling regulations are administered by the Iowa Department of Natural Resources (DNR) under 567 IAC Chapter 68. Every business must hold a DNR license before cleaning a single septic tank, and the license runs on a fiscal year cycle from July 1 through June 30 with annual renewal required by June 30.

Record-keeping requirements are spelled out in 567 IAC 68.4, which mandates documentation of three key items for every trip: the location of the cleaned system (generator address), the disposal method and site (destination address), and the volume disposed (total gallons). The five-year retention period follows both state practice and the federal standard.

What makes Iowa's structure distinctive is its local enforcement layer. County boards of health provide on-the-ground enforcement alongside the state DNR. This means haulers may face inspections and compliance inquiries from both the state agency and their local county board, each with the authority to take action.

Iowa DNR's public guidance points operators to separate grease trap waste resources rather than treating grease loads as ordinary septic-pumping work. In practice, that means a hauler should treat grease jobs as a separate planning problem and confirm the receiving facility, local pretreatment program, and county expectations before taking the load.