Documents

Electronic technical memoranda released by the NWQL from 1992 to present, and other supporting documents. To access technical memoranda, filter Type by "Technical Memos" below.

Filter Total Items: 146

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December 9, 1997

TM98-04 Changes in Minimum Reporting Levels for Solids Analyses at the NWQL (Lab Codes 159, 165, 27, 229, and 85) and Request for Information on the Need to Develop Lower Level Methods

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December 8, 1997

TM98-02 Reporting Changes for Selected Organochlorine Constituents from Schedule 1325 and Schedule 1335 - Minimum Reporting Levels, Qualified Data, Surrogates, and Elimination of Two Constituents

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November 10, 1997

TM98-01 Change in Ammonia plus Organic Nitrogen Minimum Reporting Level

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August 8, 1997

TM97-12 Implementation of Method-O-7100-96 Determination of Nonpurgeable Suspended Organic Carbon by Wet-chemical Oxidation and Infrared Spectrometry

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July 28, 1997

TM97-11 New Approved Method for VOCs

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June 20, 1997

TM97-10 Change in Ammonia Minimum Reporting Limit

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June 11, 1997

TM97-09 Replacement or Elimination of NWQL Procedures

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April 7, 1997

TM97-04S Collection, processing, and analysis of ground-water samples for tritium/helium-3 dating;

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April 7, 1997

TM97-04 Tritium/helium dating of ground-water samples available through contract with Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York

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April 1, 1997

Documents

TM98-04 Changes in Minimum Reporting Levels for Solids Analyses at the NWQL (Lab Codes 159, 165, 27, 229, and 85) and Request for Information on the Need to Develop Lower Level Methods

TM98-02 Reporting Changes for Selected Organochlorine Constituents from Schedule 1325 and Schedule 1335 - Minimum Reporting Levels, Qualified Data, Surrogates, and Elimination of Two Constituents

TM98-01 Change in Ammonia plus Organic Nitrogen Minimum Reporting Level

TM97-12 Implementation of Method-O-7100-96 Determination of Nonpurgeable Suspended Organic Carbon by Wet-chemical Oxidation and Infrared Spectrometry

TM97-11 New Approved Method for VOCs

TM97-10 Change in Ammonia Minimum Reporting Limit

TM97-09 Replacement or Elimination of NWQL Procedures

TM97-04S Collection, processing, and analysis of ground-water samples for tritium/helium-3 dating;

TM97-04 Tritium/helium dating of ground-water samples available through contract with Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York

TM97-08 Changes to the NWQL's Data Formatting and Transmittal Software

U.S. Geological Survey

U.S. Department of the Interior