Rule 15-18-77-5.7.1 - General1. The treatment facility and pump/dosing chamber shall be designed, constructed and installed so all joints, seams, and component parts preclude infiltration of surface and groundwater, while preventing the escape of wastewater or other liquids. 2. Electrical equipment shall be protected with safety devices (overload interrupting devices, fuses, etc.). Electrical equipment shall comply with appropriate National Electrical Manufacturer's Association (NEMA). Electrical component parts shall be covered by the manufacturer's limited warranty and must be installed in a manner to eliminate potential contact with sewage or effluent, including connections.15 Miss. Code. R. 18-77-5.7.1