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Interpretation of groundwater data in the vicinity of a long established sandstone quarry

Lookup NU author(s): Professor Rick Brassington


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The Pilkington Quarry is located on the west-facing lower slopes of Winter Hill north of Horwich near Bolton andworks the Pennine Lower Coal Measures (PLCM) Ousel Nest Grit. The quarry’s history dates from the second half of the 19th century hardly changing in size from the 1890s to recent years. The present owners have successfully applied to extend the working area southwards and also wish to infill the quarry with non-hazardous wastes. As part of the environmental assessments for these applications a series of piezometers were installed to allow the water table to be monitored. This paper is based on the geological and groundwater level data obtained from these boreholes.Groundwater levels have been recorded monthly for some three years from which the water table elevations have been determined that define both the groundwater flow system and seasonal fluctuations. The impact of the quarry on the local groundwater conditions is evident from the modifications to the groundwater elevations and the seasonal amplitudes above and below the quarry void.The paper discusses how these impacts have been caused and their significance; and also discusses the assessment of environmental impacts in the context of current Environment Agency requirements.

Publication metadata

Author(s): Brassington FC

Editor(s): Hunger, E., Brown, T. J. and Lucas, G. (Eds.)

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 17th Extractive Industry Geology Conference

Year of Conference: 2014

Pages: 108-117

ISSN: 2055-3250

Publisher: Extractive Industry Geology Conferences Ltd