Drainage, in accordance with the Ontario Drainage Act is to oversee the maintenance and construction of all municipal drains throughout the municipality. A municipal drain is simply a drainage system that channels water off of agricultural land or removes excess water that collects on properties. Most municipal drains are either open ditches or closed tile systems in the ground. Structures that are considered part of municipal drains are grassed waterways, storm water retention ponds, culverts and bridges. Certain creeks and small rivers are also considered to be municipal drains. Municipal drains are created under the authority of the Drainage Act. The basic responsibility of Nagar Palika Parishad towards Sewerage maintenance in its area is to construct efficient and smooth sewage system in the area. For this purpose, it manages and maintains the central sewerage and drainage lines under all major / arterial roads that transports sewage from the inhabitant areas of the Nagar Palika Parishad towards sewage treatment plant that prevents outbreak of various diseases and help in maintenance of adequate public health. Ceratinly its main functions are: Put sewage pipes in the inhabitant areas under all major and arterial roads. Collect sewage from houses and streets and transfer it to sewage treatment plants. Time to time cleaning nd maintenance of sewage pipelines such that no issues like sewage-clogging and sewage pipe breakage could cause insanitation in its municipal area.