https://slavyanski.net/sb2020/story.php?title=brief-story-the-fact-about-you-oirn-5 The "UCMR five Laboratory Approval Manual" (USEPA, 2020f) delivers more certain guidance on EPA laboratory approval method and the unique method acceptance standards. EPA does not Start Printed Page 13860expect to conduct extra PT research right after the begin of PWS monitoring nonetheless, laboratory audits will most likely be ongoing in the course of the implementation of UCMR 5. Tue, 20 Sep 2022 22:40:21 UTC en