081E0169

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ADMINISTRATIVE & TECHNICAL DATA
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Borehole drilled in framework of RESPONSE project for installation of groundwater monitoring well (2 m filter).

GSB ID: 081E0169
RESPONSE ID: ZIL-04
Location: Adjacent to Woods Cemetery, Verbrandemolenstraat, Zillebeke (Ieper)
Date: 05.09.2018
X: 47600.094
Y: 169069.957
Z: +39.467 m
Total depth: 2.90 m
Groundwater level: c. 2.40 m
Describer: Jan Walstra, Geological Survey of Belgium

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LITHOLOGICAL DESCRIPTION
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0.00 – 0.10 m
Light greyish-brown, humic, loamy fine sand

0.10 – 1.20 m
Light brownish-beige loamy very fine sand (with loamy lumps); some orange Fe-oxidation spots; brick fragment at c. 0.40 m

1.20 – 2.80 m
Light beige-grey slightly loamy fine sand (very homogeneous sand); orange Fe-oxidation spots, few dark-brown Mn-oxidation speckles down from 1.50 m

2.80 m
Some silex gravels

2.80 – 2.90 m
Greenish-grey sandy clay

All depths: non-calcareous

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STRATIGRAPHICAL INTERPRETATION
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0.00 – 0.40 m: reworked
0.40 – 2.80 m: Quaternary eolian cover sands
2.80 m: Quaternary base gravel
2.80 – 2.90 m: Tielt Formation

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GROUNDWATER LEVEL
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Measurements sounding device, below ground surface
5.9.2018: -2.40 m
19.12.2018: -2.39 m