EPA Identification of New Iodinated Disinfection Byproducts

Iodinated contrast media (ICM) are nonmutagenic agents administered for X-ray imaging of soft tissues. ICM can reach μg/L levels in surface waters because they are administered in high doses, excreted largely unmetabolized, and poorly removed by wastewater treatment. One new iodomethane (trichloroiodomethane), three new iodoacids (dichloroiodoacetic acid, chlorodiiodoacetic acid, bromochloroiodoacetic acid), and two new nitrogenous I-DBPs (iodoacetonitrile and chloroiodoacetonitrile) were identified in this study. https://pubs.acs.org/doi/10.1021/acs.est.8b04625

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Revised Small Laboratory Handbook Published

TNI has released the 2016 version of the Small Laboratory Handbook. This document is intended to help explain the requirements of the 2016 Standard and to provide environmental laboratories, especially small laboratories, with clear, simple guidance on how to develop the policies and procedures that will allow them to become accredited to the TNI Standard. The revised handbook includes much more “How to” information. and also contains a discussion of the accreditation process and several appendices with useful information, including common findings, SOP templates, and answers to standard interpretation requests. https://nelac-institute.org/content/NELAP/howto.php

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EPA Approves 100 Methods for Drinking Water

EPA has approved 100 analytical methods for determining contaminant concentrations in drinking water samples. This rule is effective October 12, 2018. Regulated entities required to monitor drinking water may use either the testing methods already established in the existing drinking water regulations or these alternative methods. The new methods include a revision to EPA method 900.0 for gross alpha and beta, 89 updated methods in Standard Methods, 5 ASTM methods, and 2 Hach methods. A reformatted and edited version of this rule (and the Method 900.0, revision 1.0) is available from Catalyst on request. (10/12/2018, 83 FR 51636) https://www.gpo.gov/fdsys/pkg/FR-2018-10-12/pdf/2018-22162.pdf

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DOD/DOE Releases Draft Version of Version 5.2 of their Quality Systems Manual

The Department of Defense Environmental Data Quality Workgroup (EDQW) and the Department of Energy Data Quality Workgroup (DQW) released a draft QSM Version 5.2 for review and comment.  In addition to the gray boxes containing ISO 17025:2017 requirements that are different or more stringent than ISO 17025:2005 there are other changes in the document which are highlighted in yellow. Please submit all comments no later than Wednesday October 31, 2018 to Mr. Mathew Lloyd at mlloyd@dandp.com. To see a copy of this document, contact Catalyst.

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