I roto i te rerewē, te huarahi tere, me te hiko waikeri kauhanga, he mea nui te whakahaere i te puehu me te wiri. Ko teYT28e tautoko ana i ngā pūnaha keri mākū e whakaiti ana i ngā matūriki puehu, e waihanga ana hoki i tētahi āhuarangi mahi haumaru ake.

Mā tōna auau pānga maeneene ka āwhina i te pupuri i te tika o te keri, kia tika ai ngā koki o te poka pahū, kia pai ake ai te āhua o te mata o te kauhanga. Ka whakaitihia te pakaru nui me tengā utu whakapuru raima iti ihoi muri mai i te hanganga.

I runga i tēnei turanga, ka whakauruhia e te keri toka YT28 tētahi tauira hou mō te whai huatanga o te keri i raro i te whenua me te oranga o te kaiwhakahaere. Ko tētahi o ngā arotahi matua o te hangarau ko te whakaiti i te tuku wiri kino ki te kaiwhakahaere. Mā tēnei hoahoa wiri iti ka whakaiti tika i te mōrearea o te Ringa-Ringa Wiri (HAVS), he whara mahi noa, ā, ka whakarei ake i te hauora o ngā kaimahi mō te wā roa me te whakaiti i te ngenge o ngā taputapu. Hei tāpiri, ehara i te mea he kōwhiringa noa te whakaurunga o te keri mākū engari he āhuatanga matua. Mā te werohanga tika i te wai mā roto i te maitai keri, ka pehia e te pūnaha te puehu silica i tōna pūtake. He ārai nui tēnei ki te silicosis, ka whakarite kia pai ake te kounga o te hau i roto i te wāhi kuiti o te kauhanga, ā, ka mārama ake te tirohanga a te kapa keri.

Ka horapa atu ngā painga ki tua atu i te taiao mahi tata tonu, tae atu ki te ōhanga whānui me te wātaka o te kaupapa. Mā te pumau tino pai o te keri i te wā e mahi ana ka taea e ngā kaiwhakahaere te whakatutuki me te pupuri i te tūnga tino tika o te poka pupuhi me te tika tonu. Ka puta tika mai tēnei tika ki tētahi kōtaha kauhanga ma, he mārama ake i muri i ia pupuhi. Ko te mutunga mai he whakaiti nui i te pakaru nui - te keri i te toka i tua atu i te rārangi hoahoa e whakaarohia ana. Mā te iti o te pakaru nui, he iti ake te shotcrete me te raima e hiahiatia ana mō ngā kaupapa, ka hua ake he penapena nui i ngā utu rauemi me te mahi. E ai ki ngā kaihoko ehara i te mea he wāhi mahi haumaru ake, he pai ake te tutuki, engari he tere ake hoki te tere o mua, ka waiho te YT28 hei haumitanga atamai e whai hua ana i te haumaru me te hua.