Hukumar Kare Muhalli ta Amurka (EPA) ta sanar a ranar 31 ga Maris, 2022 cewa ba ta da niyyar daidaita perchlorate a cikin ruwan sha, tana mai riƙe da shawararta na Yuli 2020. EPA ta kammala cewa shawarar da ta gabata ta dogara ne akan mafi kyawun kimiyyar da ake samu. Ya kasance hanya mai tsayi tun lokacin da Massachusetts ta zama ɗaya daga cikin jihohi na farko da suka tsara perchlorate a cikin ruwan sha na Knight 60. "Massachusetts ya fara ba da shawarar 2 ppb ruwan sha da tsarkakewa daidaitattun sinadarai perchlorate.") Abin mamaki, shine gaggawa da yanke hukunci da jihohi suka dauka shekaru da suka wuce wanda ya jagoranci EPA zuwa 2020 ya kammala cewa matakan perchlorate a cikin muhalli sun ragu akan lokaci kuma basu cika ka'idodin Dokar Amintaccen Ruwa ba (SDWA).
Don sake ɗauka, a cikin Yuni 2020, EPA ta sanar da cewa ta ƙaddara cewa perchlorate bai dace da ka'idodin tsarin SDWA a matsayin gurɓataccen ruwan sha ba, don haka ya soke shawarar ƙa'ida ta 2011. 2020. Musamman, EPA ta ƙaddara cewa perchlorates ba "sau da yawa kuma akai-akai" matakan damuwa na lafiyar jama'a a cikin ma'anar SDWA" da kuma cewa ka'idojin perchlorate ba ya "ba da dama mai ma'ana don rage haɗarin kiwon lafiya ga waɗanda ke hidima ga tsarin ruwa na jama'a."
Musamman ma, EPA ta sake yin la'akari da yanke shawara na 2011 kuma ta gudanar da bincike da yawa a cikin shekaru da yawa da ke kimanta abubuwan da suka faru da aka tattara daga Dokar Kulawa da Ƙira (UCMR) da sauran kulawa a Massachusetts da California. cewa akwai tsarin samar da ruwan sha na jama'a 15 kawai a cikin Amurka Tsarin zai ma wuce ƙimar da aka ba da shawarar (18 µg / L).Saboda haka, bisa ga Sashe na SDWA 1412 (b) (4) (C), EPA ta ƙaddara cewa, bisa ga bayanan da ake samu, fa'idodin kafa ƙa'idodin perchlorate na ƙasa na ƙasa na ƙa'idodin ruwan sha na farko ba su tabbatar da ƙayyadaddun ƙayyadaddun tsarin ruwa na EPA ba. tsari yana ba da dama mai ma'ana don rage haɗarin kiwon lafiya da tsarin ruwan jama'a ke bayarwa kafin daidaitawa.
Nan take hukumar kare albarkatun kasa ta fitar da wata sanarwa inda ta yi Allah wadai da matakin.Bisa karar da ta shigar a baya na kalubalantar hukuncin 2020, abin jira a gani ko da gaske ne wannan matakin ya kare.