Rule 15-18-77-5.6.5 - Treatment1. Wastewater effluent must meet the requirement established by American National Standards Institute/National Sanitation Foundation (ANSI/NSF) International Standard Number 40 testing protocol, as set forth in Regulations Governing Residential Individual Onsite Wastewater Disposal Systems: Certification. The type of treatment must also conform to drip tubing manufacturers' specifications.2. The treatment and dosing chamber shall be designed, constructed and installed so all joints, seams, and component parts shall preclude infiltration of groundwater, and prevent escape of wastewater or liquids.15 Miss. Code. R. 18-77-5.6.5