Is Straight Piping Legal in Indiana After the 2026 Policy Reforms?

No. Straight piping—discharging raw sewage from recreational vehicles (RVs) or boats directly into waterways—violates Indiana’s water quality statutes and federal Clean Water Act provisions. The Indiana Department of Environmental Management (IDEM) enforces strict prohibitions under 327 IAC 2-1.5, aligning with EPA’s 2026 effluent guidelines for point-source pollution. Violations risk fines up to $27,500 per day under the Indiana Water Pollution Control Act, with local health departments empowered to issue cease-and-desist orders.

Key Regulations for Straight Piping in Indiana

  • 327 IAC 2-1.5: Prohibits direct discharge of untreated sewage into state waters, mandating connection to IDEM-approved treatment systems or pump-out facilities.
  • Clean Water Act §402 (NPDES): Requires permits for point-source discharges; straight piping lacks authorization, triggering enforcement by IDEM and U.S. EPA Region 5.
  • Local Ordinances: Municipalities like Indianapolis-Marion County (under 410 IAC 6-2.1) impose additional penalties, including RV park revocation for non-compliance.

IDEM’s 2024–2026 enforcement priorities target high-traffic waterbodies (e.g., Lake Michigan, Wabash River) via targeted inspections. Boaters and RV owners must use IDEM-listed pump-out stations or certified holding tanks; failure to document compliance during inspections constitutes prima facie evidence of violation. Civil penalties escalate for repeat offenders, with potential criminal liability under 16-41-34-10 for knowingly violating discharge standards.