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Cover image for Summary of the U.S. Geological Survey National Field Quality Assurance Program from 1979 through 1997

Summary of the U.S. Geological Survey National Field Quality Assurance Program from 1979 through 1997

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Joyner - Microforms B300 I 19.76:98-392 ✔ Available
Cover image for USGS tracks acid rain

USGS tracks acid rain

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Cover image for A guide to the design of surface-water-quality studies

A guide to the design of surface-water-quality studies

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Joyner - Microforms B300 I 19.76:93-105 ✔ Available
Cover image for Guidelines for preparing a quality assurance plan for district offices of the U.S. Geological Survey

Guidelines for preparing a quality assurance plan for district offices of the U.S. Geological Survey

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Joyner - Microforms B300 I 19.76:92-136 ✔ Available
Cover image for Summary of the National Atmospheric Deposition Program/National Trends Network intersite-comparison program, November 1978-November 1989

Summary of the National Atmospheric Deposition Program/National Trends Network intersite-comparison program, November 1978-November 1989

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Cover image for External quality-assurance results for the National Atmospheric Deposition Program and the National Trends Network during 1987

External quality-assurance results for the National Atmospheric Deposition Program and the National Trends Network during 1987

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Cover image for Stability of nitrate-ion concentrations in simulated deposition samples used for quality-assurance activities by the U.S. Geological Survey

Stability of nitrate-ion concentrations in simulated deposition samples used for quality-assurance activities by the U.S. Geological Survey

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Cover image for External quality-assurance results for the National Atmospheric Deposition Program and the National Trends Network during 1986

External quality-assurance results for the National Atmospheric Deposition Program and the National Trends Network during 1986

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Cover image for Results of external quality-assurance program for the National Atmospheric Deposition Program and National Trends Network during 1985

Results of external quality-assurance program for the National Atmospheric Deposition Program and National Trends Network during 1985

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Cover image for Bias and precision of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network, 1984

Bias and precision of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network, 1984

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