He mea nui te keti waikura mō te whakahaere i te taumata wai i roto i ngā hanganga waipēhi pērā i te teihana hiko waipēhi, te puna wai, te waipēhi me te raka kaipuke. Me ruku ki raro i te wai mō te wā roa, me te whakawhiti pinepine i te maroke me te mākū i te wā e whakatuwhera ana, e kati ana, ā, me horoi ki te rere tere o te wai. Ina koa, ka pāngia te raina wai e te wai, te hihi o te rā me ngā mea ora wai, tae atu ki ngā ngaru wai, te paru, te hukapapa me ētahi atu mea e mānu ana, ā, he ngāwari te waikura o te maitai. Ka whakaitihia te kaha o te keti maitai, ā, ka pā kino ki te haumaru o te hangarau waipēhi. Ko ētahi ka tiakina e te paninga, ka pakaru i muri i te 3 ~ 5 tau o te whakamahinga, he iti te mahi pai me te utu tiaki nui.

Ehara i te mea ko te waikura anake te pānga ki te haumaru o te hanganga, engari he nui hoki ngā rauemi tangata, rauemi me ngā rauemi pūtea e pau ana ki te mahi i ngā mahi ārai-waikura. E ai ki ngā tatauranga o ētahi kaupapa keti waikura, ko te whakapaunga ā-tau mō ngā keti ārai-waikura e tata ana ki te haurua o te utu tiaki ā-tau. I taua wā anō, me whakamahi he tokomaha o ngā kaimahi ki te tango i te waikura, te peita, te rehu rānei. Nō reira, kia pai ai te whakahaere i te waikura o te maitai, kia roa ake te ora o te keti maitai, kia mau ai te pono me te haumaru o ngā kaupapa tiaki wai me te hiko wai, kua aro nui te iwi ki te raruraru roa mō te ārai-waikura o te keti maitai.

Te taiao waikura o te keti waikura hanganga maitai me ngā āhuatanga e pā ana ki te waikura:

1. Te taiao waikura o te keti waikura hanganga maitai

Ko ētahi o ngā kēti rino me ngā hanganga rino i roto i ngā kaupapa tiaki wai me te hiko wai ka rumakina ki roto i ngā momo kounga wai (wai moana, wai māori, wai para ahumahi, me ētahi atu) mō te wā roa; ko ētahi ka noho ki roto i te taiao maroke, mākū hoki nā te huringa o te taumata wai, te whakatuwheratanga me te kati o te kēti; ko ētahi ka pāngia e te rere tere o te wai me te waku o te paru, te paru e rere ana me te hukapapa; ko te wāhanga i runga i te mata o te wai, i runga ake rānei i te wai ka pāngia hoki e te hau makuku o te mimiti wai me te kohu wai e tauhiuhi ana; ko ngā hanganga e mahi ana i roto i te hau ka pāngia hoki e te hihi o te rā me te hau. Nā te mea he kino te taiao mahi o te kēti waipēhi, ā, he maha ngā āhuatanga whai mana, me tātari ngā āhuatanga waikura.

2. Ngā āhuatanga waikura

(1) ngā āhuatanga āhuarangi: he ngāwari te waikura o ngā wāhanga wai o te keti waikura hanganga maitai i te rā, te ua me te haumākū.

(2) te āhua o te mata o te hanganga maitai: he nui te pānga o te taratara, te kino ā-mīhini, te pirau, ngā hapa whakarewa, ngā āputa, me ētahi atu ki te waikura.

(3) te ahotea me te whakarerekētanga: ka nui ake te ahotea me te whakarerekētanga, ka kino ake te waikura.

(4) te kounga o te wai: he iti te tote o te wai māori, ā, he rerekē te waikura o te kuaha i runga i tōna hanganga matū me te parahanga; he nui te tote o te wai moana, ā, he pai te kawe hiko. He nui ngā katote hauota kei roto i te wai moana, he tino waikura ki te maitai. He kino ake te waikura o te kuaha maitai i roto i te wai moana i tērā i roto i te wai māori.