Missouri Septic Hauling Compliance Guide

Missouri septage hauling operates under the Missouri Department of Natural Resources (DNR) through two primary regulations: 10 CSR 20-6.015 for permitting and 10 CSR 20-8 for sludge and septage handling and facility design. Haulers must obtain a state general permit from DNR to conduct septage operations.

While Missouri does not explicitly require per-trip manifests at the state level, the reporting obligation is clear and carries a specific deadline that haulers should mark on their calendar. An annual calendar year report is due January 28, per DNR guidance. This is an unusually specific date compared to the end-of-month or end-of-quarter deadlines found in most states, and missing it puts you out of compliance with the Missouri Clean Water Law (RSMo Chapter 644).

Registration is per-business, and penalties fall under RSMo Chapter 644 with enforcement by Missouri DNR. The five-year record retention period follows the federal default, since state-specific retention is not separately documented.

Grease trap waste does not have a separate state-specific licensing program. FOG compliance is regulated at the municipal level through local POTW pretreatment programs under 40 CFR 403. Land application of grease trap waste is not allowed.