scholarly journals Constraints on Hydraulic Anisotropy from Periodic Pumping Tests using a Double‐Packer System

2021 ◽  
Author(s):  
Y. Cheng ◽  
J. Renner
Keyword(s):  
Pumping Tests ◽  
Hydraulic Anisotropy

scholarly journals Groundwater level and electrical conductivity datasets acquired within pumping tests on Ilovik Island in Croatia

Data in Brief ◽  
2021 ◽  
pp. 107180
Author(s):  
Josip TERZIĆ ◽  
Marina FILIPOVIĆ ◽  
Ivana BOLJAT ◽  
Ana SELAK ◽  
Jasmina LUKAČ REBERSKI
Keyword(s):  
Electrical Conductivity ◽  
Groundwater Level ◽  
Pumping Tests

scholarly journals Assessing Stream-Aquifer Connectivity in a Coastal California Watershed

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 416
Author(s):  
Bwalya Malama ◽  
Devin Pritchard-Peterson ◽  
John J. Jasbinsek ◽  
Christopher Surfleet
Keyword(s):  
Time Series ◽  
Spectral Analysis ◽  
Water Level ◽  
Time Series Data ◽  
Series Data ◽  
Low Permeability ◽  
Pumping Tests ◽  
Stream Flows ◽  
The Impact

We report the results of field and laboratory investigations of stream-aquifer interactions in a watershed along the California coast to assess the impact of groundwater pumping for irrigation on stream flows. The methods used include subsurface sediment sampling using direct-push drilling, laboratory permeability and particle size analyses of sediment, piezometer installation and instrumentation, stream discharge and stage monitoring, pumping tests for aquifer characterization, resistivity surveys, and long-term passive monitoring of stream stage and groundwater levels. Spectral analysis of long-term water level data was used to assess correlation between stream and groundwater level time series data. The investigations revealed the presence of a thin low permeability silt-clay aquitard unit between the main aquifer and the stream. This suggested a three layer conceptual model of the subsurface comprising unconfined and confined aquifers separated by an aquitard layer. This was broadly confirmed by resistivity surveys and pumping tests, the latter of which indicated the occurrence of leakage across the aquitard. The aquitard was determined to be 2–3 orders of magnitude less permeable than the aquifer, which is indicative of weak stream-aquifer connectivity and was confirmed by spectral analysis of stream-aquifer water level time series. The results illustrate the importance of site-specific investigations and suggest that even in systems where the stream is not in direct hydraulic contact with the producing aquifer, long-term stream depletion can occur due to leakage across low permeability units. This has implications for management of stream flows, groundwater abstraction, and water resources management during prolonged periods of drought.

scholarly journals How to find aquifer statistics utilizing pumping tests? Two field studies using welltestpy

Ground Water ◽  
2021 ◽  
Author(s):  
Sebastian Muller ◽  
Carsten Leven ◽  
Peter Dietrich ◽  
Sabine Attinger ◽  
Alraune Zech
Keyword(s):  
Field Studies ◽  
Pumping Tests

New graphical methods for estimating aquifer hydraulic parameters using pumping tests with exponentially decreasing rates

2019 ◽  
Vol 33 (17) ◽  
pp. 2314-2322 ◽  
Author(s):  
Chao Zhuang ◽  
Zhifang Zhou ◽  
Hongbin Zhan ◽  
Jinguo Wang ◽  
Yabing Li ◽  
...  
Keyword(s):  
Graphical Methods ◽  
Hydraulic Parameters ◽  
Pumping Tests

scholarly journals Estimation of hydraulic parameters from pumping tests in a multiaquifer system

2020 ◽  
Vol 5 (3) ◽  
pp. 210-222 ◽  
Author(s):  
Da Ha ◽  
Gang Zheng ◽  
Haizuo Zhou ◽  
Chaofeng Zeng ◽  
Huihui Zhang
Keyword(s):  
Hydraulic Parameters ◽  
Pumping Tests
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