Ukuqhekeza Yindlela yokutsala irhasi yendalo evela fracturing fracturing. Imalunga nokukwazi ukukhupha irhasi okanye ioyile ngendlela eyakhelwe ngaphambili, enamacala kunye nesamente kakuhle apho enye okanye ngaphezulu kwamajelo eveliswa apho kufakwa khona uxinzelelo oluphezulu lwamanzi. Uxinzelelo apho amanzi afakwe khona kufuneka lube lukhulu kunokumelana neliwa ukuze kuvulwe ukuqhekeka kukhuphe ihydrocarbon.
Ewe, I-Arhente yokuKhuselwa kokusiNgqongileyo (i-EPA) I-US iye yalumkisa ukuba ukusetyenziswa kwe-fracking ukukhupha ioyile kunye negesi kunokuchaphazela kakubi unikezelo lwamanzi okusela.
Ngexesha lokukhupha irhasi usebenzisa ubuchule bokuqhekeza, kunokwenzeka ukuba Ungcolisa amadama amanzi okusela aphantsi komhlaba ekubonelelwa ngayo ngabemi. I-arhente yomanyano ikulumkisile oku kuba inokuvelisa ukuchitheka kweekhemikhali ezisetyenziswe ngexesha lokuqhekeka kwe-hydraulic ukugcina ukwahlukana. Inokuchaphazela neendawo apho amanzi okusela mancinci afumanekayo kwaye ancitshiswa lungcoliseko.
Nangona kunjalo, kuphando olwenziwe yi-EPA ngo-2010 ayinakho ukunika iimpikiswano ezaneleyo Ukuze kuvavanywe ngokupheleleyo iimpembelelo ezinokubakho zokuthi ukuntywila kukwenza kwimithombo yamanzi okusela kwinqanaba lengingqi nelikazwelonke.
Ingxoxo ngako konke oku ivela kwinto yokuba amaqhekeza ajongene nezinto ezimbini ezibalulekileyo: ezoqoqosho kunye nokubonelelwa ngamanzi okusela. Impembelelo yokusingqongileyo yokuqhekeka ichaphazela kakubi izibonelelo ezifunyenwe ukusukela oko yayinjalo injini yamandla okugqibela "boom" e-US ide iyeke ukuba yinzuzo ngenxa yokuhla kwamaxabiso eoyile okubangelwe kukunyuka kwemveliso yeoyile kumazwe amaninzi.
Kungenxa yoko le nto namhlanje i-EPA isilumkisa nge imo iyatshintsha ubutyebi bamanzi buya kuncipha kwaye bunokuba semngciphekweni ngokusetyenziswa kwamaqhekeza okukhupha irhasi okanye ioyile.