Pengxi County, Suining City o le nofoaga lea o le "Sami Ulaula o Saina". O lo'o fa'aogaina e le fale fa'amama otaota i le lotoifale le matou pH mita, ORP mita, fluorescent dissolved okesene mita, turbidity mita, sludge concentration mita, ultrasonic level mita ma isi faasologa o mita. Sinomeasure mita e maua ai se pea o "mata" mo le suʻeina o taʻiala autu i le faʻagasologa o le faʻaogaina o otaota ma faʻamautinoa e oʻo atu le otaota i tulaga faʻapisinisi.
