The main pollution sources of Taiwan rivers are from living sewage, industrialdrainage and pasturage drainage. For the last decade, the plans of enhancing industrialdrainage pollution control positively advanced by EPA (Environmental ProtectionAdministration) have gradually decreased the pollution condition of industrial andpasturage drainage. In opposite, owing to the population concentration caused byurban renovation, under the circumstances of low popularization of drainage systemin Taiwan, the problems of living sewage have thus become more serious and havealready become the main pollution source of water pollution in Taiwan. Therefore, in order to heighten the deduction ratio of living sewage, besidesenhancing constructing drainage system, we should fulfill policy of living sewagededuction. In addition, we should enhance the establishment of building drainagemanaging facilities as well as to put the regular clearing up and normal operation intoacts, which are regarded as a great help to living sewage pollution deduction. The major content of task of this plan contains (1) to study and decide thepracticing management of pro-casting building of drainage handling and its examiningoperation system, (2) the establishing of guiding control information system of regulardrainage system and community drainage system, (3) to advance the regular clearingup system of building drainage handling facilities, (4) to plan to advance thededuction of living sewage pollution plan. (5) to guide and improve the defects of thecommunity drainage system to a normal operation, and (6) to conduct the tasks ofliving sewage prevention propaganda. In respect of the practicing management ofpre-castmg building of drainagehandling and its examining operation system, in addition to assisting to study and decide “the management measures of pro-casting building of drainage handling andits examining operation system

pro-casting