Ko tētahi o ngā mahi tiaki nui o te pūnaha whakamatao wai mīhini tapahi taiaho ngongo ko te whakakapi i te wai e rere ana. I roto i te tukanga rere o te wai, ka haria e te wai whakamatao ētahi puehu, ētahi matūriki whakarewa rānei ki te whakamatao, ka ārai i roto i te ara wai. Nō reira, he mea nui te whakakapi i te wai whakamatao. E taunakihia ana kia whakakapia ia 3 marama, ā, kia horoia te pūwhakamātao me te tauera puehu i ngā wā katoa kia mau tonu ai te mahi a te pūnaha whakamatao wai.
Mō te hanga, kua whakangaohia e S&A Teyu te neke atu i te kotahi miriona yuan mō ngā taputapu hanga, hei whakarite i te kounga o te raupapa o ngā tukanga mai i ngā wāhanga matua (whakamātao) o te pouaka whakamatao ahumahi ki te whakarewa i te pepa whakarewa; mō te mahi kawe taonga, kua whakatūria e S&A Teyu ngā whare putunga kawe taonga i roto i ngā tāone nui o Haina, ā, kua tino whakaitihia te kino nā te kawe taonga tawhiti, me te whakapai ake i te whai huatanga o te kawe waka; mō te ratonga muri-hoko, e rua tau te wā whakamana.
