Geological Survey (USGS) National Water Quality Laboratory (NWQL) for analysis of organic compounds by. Geological Survey Techniques of Water-Resources Investigations Report, book 9, chap.Ī5) revised chapter 5, section 5.2.1.A (version 3.0), 8 p., at. This chapter, NFM A1, provides an overview of preparations for water sampling, which includes.ĭocumentation of nationally accepted methods used by USGS personnel serves to maintain consistency and. This chapter, NFM A6.3, provides guidance and protocols for the measurement of specific. The change in the series classification does not in itself affect the content and format of the NFM.Įach chapter of the NFM is reviewed regularly and revised periodically to update procedures, incorporate technical advances, and to address additional emerging topics of relevance to water quality field studies.įederal and State agencies, water-resource regulators and managers, and many organizations and. National Pool Plant Series And OtherĮffective in 2017, new and revised NFM chapters are being released in the USGS Techniques and Methods series, which was established in 2003 to replace the TWRI series and other USGS reports. The NFM provides detailed, comprehensive, and citable procedures for monitoring the quality of surface water and groundwater. The National Field Manual for the Collection of Water-Quality Data (NFM) provides documented guidelines and protocols for USGS field personnel who collect water-quality data.
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