Hukumar Kare Muhalli ta Amurka (EPA) ta sanar a ranar 31 ga Maris, 2022 cewa ba ta da niyya ta daidaita perchlorate a cikin ruwan sha, tare da kiyaye hukuncinta na Yuli 2020. EPA ta kammala da cewa shawarar da ta gabata ta dogara ne akan mafi kyawun kimiyya. doguwar hanya tun lokacin da Massachusetts ya zama ɗaya daga cikin jihohi na farko don daidaita perchlorate a cikin ruwan sha a cikin 2006. (Duba wasiƙar Holland & Knight, "Massachusetts na farko ya ba da shawarar 2 ppb ruwan sha da tsarkakewa daidaitattun sinadarai perchlorate.") Abin mamaki, shi ne sauri kuma Matakin da jihohi suka dauka shekaru da suka gabata wanda ya jagoranci EPA zuwa 2020 ya kammala cewa matakan perchlorate a cikin muhalli sun ragu cikin lokaci kuma basu cika ka'idojin Dokar Amintaccen Ruwan Sha ba (SDWA).
Don sake bayyanawa, a cikin Yuni 2020, EPA ta sanar da cewa ta ƙaddara cewa perchlorate bai cika ka'idodin ka'idojin SDWA a matsayin gurɓataccen ruwan sha ba, don haka ya soke shawarar ƙa'ida ta 2011. Perchlorate Decision,” Yuni 23, 2020.) An buga hukuncin ƙarshe na EPA 21 ga Yuli, 2020. Musamman, EPA ta ƙaddara cewa perchlorates ba “sau da yawa kuma akai-akai” matakan damuwa na lafiyar jama'a cikin ma'anar SDWA" da kuma wannan ƙa'idar perchlorate baya "ba da dama mai ma'ana don rage haɗarin kiwon lafiya ga waɗanda ke ba da tsarin ruwan jama'a."
Musamman, 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. Dokar Bayan Shekaru na Bincike, "June 10, 2019.) Sake kimantawa bisa wannan bayanan, EPA ta kammala cewa akwai 15 kayyade samar da ruwan sha na jama'a a 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 da su, fa'idodin kafa ka'idojin ruwan sha na farko na perchlorate na ƙasa ba su tabbatar da farashin da ke tattare da su ba.Lokacin nazarin SDWA da aiwatar da tsarin mulki. , EPA yana buƙatar sanin ko ƙa'idar ta 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.