50cdcbae-bc14-628b-e054-002128a47908 English dataset British Geological Survey +44 115 936 3100 Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk pointOfContact 2026-05-24 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13607161 Arc 1960 / UTM zone 37S (EPSG::21037) Results of two sampling campaigns conducted in Kwale County Kenya in March and June 2016 by GHS/UPC as part of the Gro for GooD project (NERC grant NE/M008894/1) 2015-02-01 creation http://data.bgs.ac.uk/id/dataHolding/13607161 Results of two sampling campaigns conducted in Kwale County Kenya in March and June 2016 by GHS/UPC as part of the Gro for GooD project. Water samples from over 79 groundwater and 6 surface water (SW) locations were analysed for major ions, stable isotopes, selected trace constituents, electrical conductivity, nitrates, ammonia, pH, DO (Dissolved Oxygen), Eh (oxidation / reduction potential), Temperature, TOC (Total Organic Carbon) and field alkalinity. Most locations were sampled in both March (dry season) and June (wet season). Geology at each location recorded as follows: P - Pliocene Sands, Pls - Pleistocene Sands, Plc - Pleistocene corals. Reference: First step to understand the importance of new deep aquifer pumping regime in groundwater system in a developing country, Kwale, Kenya; Ferrer et al, Geophysical Research Abstracts, Vol. 18, EGU2016-16969, 2016; http://meetingorganizer.copernicus.org/EGU2016/EGU2016-16969.pdf; https://upgro.files.wordpress.com/2015/09/egu16_groforgood_v1.pdf UPC - The Departement of Civil Enginyering de la Universitat Politecnica de Catalunya GHS - Grupo de Hidrologia Subterranea Dr R A Hope University of Oxford School of Geography and the Environment Oxford OX1 3QY not available principalInvestigator Nancy Gladstone University of Oxford Smith School of Enterprise and the Environment Oxford OX1 3QY not available pointOfContact Núria Ferrer Universitat Politècnica de Catalunya not available originator Albert Folch Universitat Politècnica de Catalunya not available originator Emilio Custodio Universitat Politècnica de Catalunya 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/50cdcbae-bc14-628b-e054-002128a47908.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Sampling Water sampling Water chemistry Geology Surface waters Water analysis Groundwater BGS Thesaurus of Geosciences 2022 revision NGDC Deposited Data dataCentre NERC_DDC otherRestrictions restricted The dataset has been formally approved by BGS for access by external clients under a BGS Digital Data Licence, issued via BGS's IPR Section. The dataset must not be provided to, or be accessible by, an external client until the IPR Section confirms that signed licence documentation is in place. Refer to the IPR Section (DigitalLE@bgs.ac.) if further advice is required. 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. Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk) for advice, should the position not be clear. English geoscientificInformation ISO 3166_1 alpha-2 2009 revision KE ISO 3166_1 alpha-3 2009 revision KEN British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation KENYA [id=687000] 38.4500 39.7000 -4.6700 -3.5500 2015-02-01 2019-01-31 NERC grant NE/M008894/1 Enquiries British Geological Survey United Kingdom not available distributor http://meetingorganizer.copernicus.org/EGU2016/EGU2016-16969.pdf WWW:DOWNLOAD-1.0-http--download information https://upgro.files.wordpress.com/2015/09/egu16_groforgood_v1.pdf WWW:DOWNLOAD-1.0-http--download First step to understand the importance of new deep aquifer pumping regime in groundwater system in a developing country, Kwale, Kenya download https://upgro.org/consortium/gro-for-good/ WWW:LINK-1.0-http--link Gro for GooD: Groundwater Risk Management for Growth and Development information https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item76389 WWW:DOWNLOAD-1.0-http--download Data download http://reshare.ukdataservice.ac.uk/853667/ information dataset 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 Three casing volumes of groundwater removed from each handpump or well prior to sampling using electric pump when water column sufficient. Temp, pH, EC25, DO, eH measured by YSI Professional Plus probe with cell flux to avoid air contact (automatic temp compensation for pH and EC25). pH calibrated against pH 7.00 and 4.04 standard solutions 3x/wk. EC25 calibrated against 1413µS/cm standard solution 3x/wk prior to fieldwork. Probes washed in distilled water before and after use; kept in distilled water. Ammonium conc.(mg/l NH4-N, mg/l NH4+) measured by field colorimeter test (colour card - Merck Millipore). Alkalinity measured in situ after filtering sample (0.2µm filters; field titration using digital tritator (Merck Millipore). Samples for cation, anion and trace element analysis filtered with 0.2µm GNWP (Millipore) nylon membrane in 15 mL polypropylene bottles (new membrane at each point). After filtering, cation and trace elements samples acidified with a few drops of 70% HNO3. Water isotopes collected in (2mL) special crystal chromatography tubes with septum cups without headspace. TOC crystal bottles muffled before sampling, filled without headspace, acidified with a few drops of HCl 2N. Samples kept at 4°C in dark coolbox then stored at 4°C until transport to lab in temp-controlled boxes. Labs: Cations, trace metals and TOC - Institute of Environmental Assessment and Water Research (IDAEA) by ICP-AES, ICP-MS and by infrared detector using the NPOC method (Shimatzu TOC-Vcsh); Anions - - Catalan Institute of Water Research (ICRA) using ionic chromatography except phosphates (analysed by spectrophotometry); Br - Grup de tècniques de separació (GTS), Autonomous University of Barcelona by ICP-MS; Environmental isotopes (dD, d18O) - Centro de Hidrogeología de la Universidad de Málaga (CEHIUMA) by Picarro equipment. Quality of chemical analysis checked by performing an ionic mass balance.