Liquid waste management is collection, treatment and disposal of sewage as well as the protection of the environment from polluted runoff. Largely, the liquid waste in urban areas of Pakistan is processed by sewer systems and individual septic systems, being managed by municipalities, WASAs, WSSCs and Housing Authorities. The non-point source pollution is a major contributor of liquid waste that includes runoff from farming activities, failed septic systems, vehicles and gardening products. Effluent from non-point sources is often not managed by community drainage systems. A liquid waste management plan (LWMP) guides these activities, and is designed specifically to meet the needs of individual areas, based on technical and regulatory requirements, as well as input from the community.