OR/14/041 Appendix 1 - Summary of the geology and hydrogeology of each borehole

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Lafare, A E A, Hughes, A G, and Peach, D W. 2014. Eden Valley observation boreholes: hydrogeological framework and groundwater level time series analysis. British Geological Survey Internal Report, OR/14/041.

Each borehole is described using a same layout composed of two pages. The composition of the pages is described in the key provided below.

Page 1:

A.  Solid geology. BGS © NERC. River network data from CEH, © NERC. © Crown Copyright
B.  Superficial geology. BGS © NERC
C.  General location map and geographical information. BGS © NERC
D.  Topography. BGS © NERC
E.  Domains map: each domain class is represented by a 3-digits code: x y z
  • x representing the relative permeability of the bedrock:
    1: Low permeability,   2: Intermediate permeability,   3: High permeability
  • y representing the occurrence and permeability of the superficial deposits:
    0: No deposits,   1: Low permeability,   2: High permeability
  • z representing the relative thickness of the superficial deposits:
    1: 0–6.3 m,   2: 6.3–19 m,   3: >19 m
F.  Text: description of the general geographical and geological setting
G.  Geological log

Page 2:

A.  Groundwater level hydrograph, alongside with rainfall and recharge time series associated to the area containing the borehole
B.  Histogram showing the characteristics of the superficial deposits 1000 m and 2000 m from the borehole
  • No : no superficial deposit
  • H : high permeability superficial deposits, with increasing thickness (1–3)
  • L : low permeability superficial deposits, with increasing thickness (1–3)
C.  Time series decomposition between Seasonality, trend and remainder (only daily time series)
D.  Text: interpretation of the hydrograph and the results of the decomposition