95087060-b453-5bf3-e054-002128a47908 English nonGeographicDataset non geographic dataset British Geological Survey +44 115 936 3100 Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk pointOfContact 2026-05-26 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13607536 16S rRNA Gene Sequencing of Filtered Groundwater from 8 Boreholes in Cambodia (NERC grant NE/P01304X/1) 2019-09-26 creation http://data.bgs.ac.uk/id/dataHolding/13607536 This dataset represents the raw reads from sequencing the V4 hyper-variable region of the 16S rRNA gene on an Illumina MiSeq platform. The samples are filtered groundwater samples from 8 boreholes from a sandy-dominated site and a clay-dominated site in Cambodia that show arsenic concentrations above the WHO recommended limit, and were collected in May 2019. Prof Jonathan Lloyd University of Manchester School of Earth and Environmental Sciences Manchester M13 9PL not available principalInvestigator Dr Naji Bassil University of Manchester School of Earth and Environmental Sciences Williamson Building Manchester M13 9PL not available originator Enquiries British Geological Survey United Kingdom not available distributor Enquiries British Geological Survey United Kingdom not available pointOfContact notApplicable https://resources.bgs.ac.uk/images/geonetworkThumbs/95087060-b453-5bf3-e054-002128a47908.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Groundwater Arsenic BGS Thesaurus of Geosciences 2022 revision NGDC Deposited Data dataCentre NERC_DDC otherRestrictions licenceOGL Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]" otherRestrictions The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused. Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]" English geoscientificInformation British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation KAMPUCHEA [id=548000] British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation KANDAL [id=548780] 2019-05-06 2019-05-12 FASTQ witheld Enquiries British Geological Survey United Kingdom not available distributor https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item130306 WWW:DOWNLOAD-1.0-http--download Data download nonGeographicDataset non geographic dataset INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology 2011 publication See the referenced specification false Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF false Groundwater (500 mL) was collected in sterile plastic bottles (Corning), and filtered through a sterile 0.2 um nitrocellulose filter (Whatman). The filters were placed in DNA/RNA Shield Collection and Lysis Tubes (ZymoResearch) and homogenised using a Terralyzer (ZymoResearch) and transported to the UK. DNA was extracted from the samples, along with 3 negative controls, using the ZymoBIOMICS DNA Kit (ZymoResearch), according to the manufacturer's recommendations. A small volume (2 uL) from the extracted DNA was used to amplify the V4 hyper-variable region of the 16S rRNA gene by PCR, using a barcoded 515F and 806R primers, and the FastStart High Fidelity PCR System (Roche Diagnostics). The barcoded PCR products were purified and normalised to ~20 ng each, using the SequalPrep Normalization Kit (Fisher Scientific), pooled and sequenced on an Illumina MiSeq platform using V2 chemistry.