Pengxi County, Suining City o le nofoaga 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 oxygen 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 lapisi i tulaga faʻapisinisi.
