The US Environmental Protection Agency (EPA) yakazivisa munaKurume 31, 2022 kuti haina chinangwa chekudzora perchlorate mumvura yekunwa, ichichengeta sarudzo yaChikunguru 2020. EPA yakagumisa kuti sarudzo yapfuura yakavakirwa pasainzi yakanakisa iripo. mugwagwa wakareba kubva Massachusetts yakava imwe yenyika dzekutanga kutonga perchlorate mumvura yekunwa muna 2006. (Ona Holland & Knight newsletter, "Massachusetts first proposes 2 ppb mvura yekunwa uye kucheneswa chiyero chemakemikari perchlorate.") Zvinoshamisa kuti, yakanga iri kukurumidza uye danho rakasimba rakatorwa nenyika makore apfuura izvo zvakatungamira EPA kusvika 2020 yakagumisa kuti mazinga eperchlorate munharaunda akadzikira nekufamba kwenguva uye haana kuzadzisa zvimiro zveSafe Drinking Water Act (SDWA).
Kuti tidzokorore, muna Chikumi 2020, EPA yakazivisa kuti yakanga yaona kuti perchlorate haina kuzadzisa zviga zveSDWA sechinhu chinosvibisa mvura yekunwa, nokudaro ichibvisa mutongo wekutonga wa2011. (Ona Holland & Knight's Energy and Natural Resources Blog, "EPA Inopedzisa Zvayo Perchlorate Sarudzo, Chikumi 23, 2020.) Sarudzo yekupedzisira yeEPA yakaburitswa Chikunguru 21, 2020. perchlorate "haipa mikana ine musoro yekudzikisa njodzi dzehutano kune avo vanoshandira veruzhinji masisitimu emvura."
Kunyanya, EPA yakaongorora zvakare sarudzo ye2011 yekutonga ikaita ongororo yakawanda mumakore apfuura ichiongorora chiitiko chechiitiko chakaunganidzwa kubva kuUnregulated Contaminant Monitoring Rule (UCMR) uye kumwe kutarisisa muMassachusetts neCalifornia. (Ona Holland & Knight Alert, "EPA Inokurudzira Perchlorate Rule After Years of Researching, "Chikumi 10, 2019.) Kuongororazve zvichibva pane iyi data, EPA inogumisa kuti kune gumi neshanu chete inodzorwa yemvura inopihwa neveruzhinji muUS. , maererano neSDWA Section 1412(b)(4)(C), EPA yakaronga kuti, zvichibva paruzivo rwuripo, mabhenefiti ekutanga mutemo wenyika weperchlorate primary water regulation haukodzeri mutengo wakabatana nawo.Pakati peSDWA assessment and rulemaking process. , EPA inoda kuona kana mutemo unopa mukana une musoro wekudzikisa njodzi dzehutano dzinopihwa nehurongwa hwemvura yeruzhinji isati yadzora.
The Natural Resources Defense Council yakabva yangoburitsa chiziviso ichishoropodza chiitiko ichi.Nekuda kwemhosva yayakambomhan'arira yaipikisa mutongo wa2020, zvicharamba zvichionekwa kuti sarudzo iyi iri kupera kwenzira here.garai makatarisa.