The Water Pollution geographic information system built this year, both the concept of watershed management, and the EPA overall business structure is an integrated GIS system.This year completed initial inter-ministerial, inter-unit data aggregation, integration and calibration.These data include the Water Resources Agency, the Construction and Planning Agency Ministry of the Interior, the Council of Agriculture. By utilizing the “WPGIS” and “EMS” for comparison to the deviation in the longitude and altitude of the location to the entrance of the enlisted regulating enterprise, the deviations reveal those with coordinate data error tally to 3,389 enterprises, those with coordinate data anomaly tally to 1,762 enterprises. And upon deducting the repetitive data of redundant enterprise data, a total of 4850 enterprises’ entrance location coordinates need to be recalibrated. The erroneous coordinate list data have also had the coordinate data verified and amended by county/city environmental protection bureaus and pertinent units, and have also been declared with competent government authorities for revalidation. The current year’s application systems development work has been completed, which includes 11 focused river/stream tributary’s water quality concentration layer change, enlisted water-regulating enterprises’ baseline information check, river/stream water quality monitoring stations’ monitoring data and RPI value calculation, river/stream water areas’ water body classification check, dam water quality monitoring stations’ monitoring data and Carlson Index calculation, water quality purification processing site’s basic data and the nearest measurement statement calculation, accountability method, enterprise water body path check, upstream probable pollution source check, pollution collecting area’s enlisted regulating enterprises’ total pollution volume statistical analysis, graphic tendency data check, verification data simple graphic printout and the like.

Water Pollution、Geographic Information Systems