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Methods for evaluating temporal groundwater quality data and results of decadal-scale changes in chloride, dissolved solids, and nitrate ... 1988-2010: USGS Scientific Report 2012-5049
Bruce D. Lindsey
Paperback. BiblioGov 2013-03-07.
ISBN 9781288851690
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Förlagets beskrivning
Decadal-scale changes in groundwater quality were evaluated by the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program. Samples of groundwater collected from wells during 1988-2000-a first sampling event representing the decade ending the 20th century-were compared on a pair-wise basis to samples from the same wells collected during 2001-2010-a second sampling event representing the decade beginning the 21st century. The data set consists of samples from 1, 235 wells in 56 well networks, representing major aquifers and urban and agricultural land-use areas, with analytical results for chloride, dissolved solids, and nitrate. Statistical analysis was done on a network basis rather than by individual wells. Although spanning slightly more or less than a 10-year period, the two-sample comparison between the first and second sampling events is referred to as an analysis of decadal-scale change based on a step-trend analysis
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Methods for evaluating temporal groundwater quality data and results of decadal-scale changes in chloride, dissolved solids, and nitrate ... 1988-2010: USGS Scientific Report 2012-5049
Bokrecensioner » Methods for evaluating temporal groundwater quality data and results of decadal-scale changes in chloride, dissolved solids, and nitrate ... 1988-2010: USGS Scientific Report 2012-5049
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