Maxey-Eakin Methods for Estimating Groundwater Recharge in the Fenner Watershed, Southeastern California

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Description

Recent review comments by the US Geological Survey, Water Resources Division on the Cadiz Groundwater Storage and Dry-Year Supply program Draft Environmental Planning Report were accompanied by an independent recharge estimate to the Fenner Basin based on a Maxey-Eakin method. The following report has analyzed WRD's recharge estimates and concludes that those results greatly underestimate annual recharge and lack credibility. Among the reasons outlined are (1) WRD's lack of geographic scale and context when analyzing precipitation-elevation data, (2) WRD's use of an uncalibrated Maxey-eakin model, and (3) WRD's lack of direct observational experience in the eastern Mojave-Fenner Basin region. This ... continued below

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407 Kilobytes pages

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Davisson, M.L. & Rose, T.P. May 15, 2000.

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Description

Recent review comments by the US Geological Survey, Water Resources Division on the Cadiz Groundwater Storage and Dry-Year Supply program Draft Environmental Planning Report were accompanied by an independent recharge estimate to the Fenner Basin based on a Maxey-Eakin method. The following report has analyzed WRD's recharge estimates and concludes that those results greatly underestimate annual recharge and lack credibility. Among the reasons outlined are (1) WRD's lack of geographic scale and context when analyzing precipitation-elevation data, (2) WRD's use of an uncalibrated Maxey-eakin model, and (3) WRD's lack of direct observational experience in the eastern Mojave-Fenner Basin region. This report presents a more exhaustive analysis of data, supported by direct field observations, and estimates recharge using a calibrated Maxey-Eakin model. This report concludes that the possible range in annual groundwater replenishment rates to the Fenner Basin are between 7864 acre-ft and 29,185 acre-ft. The lower limit is a worst-case-scenario. This range is consistent with original recharge estimates calculated and presented in the Cadiz Groundwater Storage and Dry-Year Supply Program Draft Environmental Planning Report.

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407 Kilobytes pages

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  • Other Information: PBD: 15 May 2000

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  • Report No.: UCRL-ID-139027
  • Grant Number: W-7405-Eng-48
  • DOI: 10.2172/793860 | External Link
  • Office of Scientific & Technical Information Report Number: 793860
  • Archival Resource Key: ark:/67531/metadc743205

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  • May 15, 2000

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  • Oct. 19, 2015, 7:39 p.m.

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  • May 6, 2016, 4 p.m.

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Davisson, M.L. & Rose, T.P. Maxey-Eakin Methods for Estimating Groundwater Recharge in the Fenner Watershed, Southeastern California, report, May 15, 2000; California. (digital.library.unt.edu/ark:/67531/metadc743205/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.