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Quick Guide To Drinking Water Sample Collection - Second ...

United States Region 8 Laboratory September 2016 Environmental 16194 W. 45th Dr. Protection Agency Golden, CO 80403 Quick Guide To Drinking Water Sample Collection Second Edition, Update 2 Disclaimer This document provides a general summary of techniques used by EPA Region 8 Laboratory staff for the Collection of chemistry samples for Drinking Water analysis. Other approaches to Sample Collection may be acceptable or desirable under given conditions. This document is intended as a refresher for those already trained in Sample Collection .

Cool to < 10 °C (< 50 °F) for source water and groundwater samples (recommended for drinking water as well) but do not allow samples to freeze . Holding Times Holding times are generally very short - 8 hours for source water compliance samples, 30 hours for drinking water samples, 48 hours for coliphage samples. Deliver samples to

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