{"id":516,"date":"2025-07-28T13:53:56","date_gmt":"2025-07-28T12:53:56","guid":{"rendered":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//?page_id=516"},"modified":"2025-07-28T13:53:56","modified_gmt":"2025-07-28T12:53:56","slug":"borehole-drilling-and-deposit-guidance","status":"publish","type":"page","link":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//","title":{"rendered":"Borehole drilling and deposit guidance"},"content":{"rendered":"/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<section class=/ngdc/wp-json/wp/v2/pages/516/"hero-section hero-section-with-social/ngdc/wp-json/wp/v2/pages/516/">/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<div class=/ngdc/wp-json/wp/v2/pages/516/"hero-info-wrap/ngdc/wp-json/wp/v2/pages/516/">/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<div class=/ngdc/wp-json/wp/v2/pages/516/"container/ngdc/wp-json/wp/v2/pages/516/">/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<div class=/ngdc/wp-json/wp/v2/pages/516/"row/ngdc/wp-json/wp/v2/pages/516/">/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<div class=/ngdc/wp-json/wp/v2/pages/516/"col-12/ngdc/wp-json/wp/v2/pages/516/">/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<div class=/ngdc/wp-json/wp/v2/pages/516/"hero-info/ngdc/wp-json/wp/v2/pages/516/">/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<h1>Borehole drilling and deposit guidance</ngdc/wp-json/wp/v2/pages/516//h1>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t</ngdc/wp-json/wp/v2/pages/516//div>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t</ngdc/wp-json/wp/v2/pages/516//div>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t</ngdc/wp-json/wp/v2/pages/516//div>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t</ngdc/wp-json/wp/v2/pages/516//div>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t</ngdc/wp-json/wp/v2/pages/516//div>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<div class=/ngdc/wp-json/wp/v2/pages/516/"social-wrap social-wrap-inline-them/ngdc/wp-json/wp/v2/pages/516/">/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<div class=/ngdc/wp-json/wp/v2/pages/516/"sea-background-f/ngdc/wp-json/wp/v2/pages/516/">/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<span>Share this article</ngdc/wp-json/wp/v2/pages/516//span><a target=/ngdc/wp-json/wp/v2/pages/516/"_blank/ngdc/wp-json/wp/v2/pages/516/"  href=/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.facebook.com/ngdc/wp-json/wp/v2/pages/516//sharer/ngdc/wp-json/wp/v2/pages/516//sharer.php?u=https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"icon-facebook/ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"hidden/ngdc/wp-json/wp/v2/pages/516/">Facebook</ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//a><a target=/ngdc/wp-json/wp/v2/pages/516/"_blank/ngdc/wp-json/wp/v2/pages/516/"  href=/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//twitter.com/ngdc/wp-json/wp/v2/pages/516//intent/ngdc/wp-json/wp/v2/pages/516//tweet?text=Borehole%20drilling%20and%20deposit%20guidance&#038;url=https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"icon-twitter/ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"hidden/ngdc/wp-json/wp/v2/pages/516/">Twitter</ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//a><a   onclick=/ngdc/wp-json/wp/v2/pages/516/"javascript:void( (function() {var e=document.createElement('script' );e.setAttribute('type','text/ngdc/wp-json/wp/v2/pages/516//javascript' );e.setAttribute('charset','UTF-8' );e.setAttribute('src','/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//assets.pinterest.com/ngdc/wp-json/wp/v2/pages/516//js/ngdc/wp-json/wp/v2/pages/516//pinmarklet.js?r='+Math.random()*99999999);document.body.appendChild(e)})());/ngdc/wp-json/wp/v2/pages/516/"  href=/ngdc/wp-json/wp/v2/pages/516/"javascript:void(0);/ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"icon-pinterest/ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"hidden/ngdc/wp-json/wp/v2/pages/516/">Pinterest</ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//a><a target=/ngdc/wp-json/wp/v2/pages/516/"_blank/ngdc/wp-json/wp/v2/pages/516/"  href=/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//wa.me?text=https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"icon-whatsapp/ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"hidden/ngdc/wp-json/wp/v2/pages/516/">WhatsApp</ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//a><a   href=/ngdc/wp-json/wp/v2/pages/516/"mailto:?subject=Borehole%20drilling%20and%20deposit%20guidance&#038;body=%20(https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//)/ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"icon-mail/ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"hidden/ngdc/wp-json/wp/v2/pages/516/">Email</ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//a><a href=/ngdc/wp-json/wp/v2/pages/516/"#/ngdc/wp-json/wp/v2/pages/516/" data-copy=/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/" class=/ngdc/wp-json/wp/v2/pages/516/"copy-url-on-click/ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"icon-link/ngdc/wp-json/wp/v2/pages/516/"><span class=/ngdc/wp-json/wp/v2/pages/516/"hidden/ngdc/wp-json/wp/v2/pages/516/">Copy Link</ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//span></ngdc/wp-json/wp/v2/pages/516//a></ngdc/wp-json/wp/v2/pages/516//div></ngdc/wp-json/wp/v2/pages/516//div>/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<div class=/ngdc/wp-json/wp/v2/pages/516/"img-wrap/ngdc/wp-json/wp/v2/pages/516/">/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t<img decoding=/ngdc/wp-json/wp/v2/pages/516/"async/ngdc/wp-json/wp/v2/pages/516/" src=/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-content/ngdc/wp-json/wp/v2/pages/516//uploads/ngdc/wp-json/wp/v2/pages/516//sites/ngdc/wp-json/wp/v2/pages/516//2/ngdc/wp-json/wp/v2/pages/516//2025/ngdc/wp-json/wp/v2/pages/516//05/ngdc/wp-json/wp/v2/pages/516//P987027-banner.webp/ngdc/wp-json/wp/v2/pages/516/" class=/ngdc/wp-json/wp/v2/pages/516/"lazy-blur hero-img/ngdc/wp-json/wp/v2/pages/516/" alt=/ngdc/wp-json/wp/v2/pages/516/"P987027-banner/ngdc/wp-json/wp/v2/pages/516/" data-src=/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-content/ngdc/wp-json/wp/v2/pages/516//uploads/ngdc/wp-json/wp/v2/pages/516//sites/ngdc/wp-json/wp/v2/pages/516//2/ngdc/wp-json/wp/v2/pages/516//2025/ngdc/wp-json/wp/v2/pages/516//05/ngdc/wp-json/wp/v2/pages/516//P987027-banner.webp/ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t</ngdc/wp-json/wp/v2/pages/516//div>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t</ngdc/wp-json/wp/v2/pages/516//section>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/t/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<section class=/ngdc/wp-json/wp/v2/pages/516/"wp-block-bgs-blocks-content-container content-section/ngdc/wp-json/wp/v2/pages/516/"><div class=/ngdc/wp-json/wp/v2/pages/516/"container/ngdc/wp-json/wp/v2/pages/516/"><div class=/ngdc/wp-json/wp/v2/pages/516/"row/ngdc/wp-json/wp/v2/pages/516/"><div class=/ngdc/wp-json/wp/v2/pages/516/"col-12/ngdc/wp-json/wp/v2/pages/516/">/ngdc/wp-json/wp/v2/pages/516/n<h2 class=/ngdc/wp-json/wp/v2/pages/516/"wp-block-heading/ngdc/wp-json/wp/v2/pages/516/">Water borehole drilling best practice&nbsp;</ngdc/wp-json/wp/v2/pages/516//h2>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<p>Whilst BGS, and by extension the NGDC, is named as the&nbsp;<a href=/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516/">legal place of the deposit for data</ngdc/wp-json/wp/v2/pages/516//a>, from our own extensive knowledge and expertise relating to borehole drilling, we can offer the following advice for general practice;&nbsp;&nbsp;</ngdc/wp-json/wp/v2/pages/516//p>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<p><strong>/ngdc/wp-json/wp/v2/pages/516/u2022 Location:</ngdc/wp-json/wp/v2/pages/516//strong>&nbsp;It is good practice to site a borehole as far away as possible, and preferably upslope, from any potential sources of pollution, including septic or fuel tanks, soakaways, slurry pits and areas of intensive grazing. A minimum distance of 50m between a water borehole and any potentially polluting activity is recommended.&nbsp;&nbsp;</ngdc/wp-json/wp/v2/pages/516//p>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<p>/ngdc/wp-json/wp/v2/pages/516/u2022&nbsp;<strong>Construction:</ngdc/wp-json/wp/v2/pages/516//strong>&nbsp;For boreholes abstracting from the superficial deposits, the top few metres should be cased out (the depth of plain casing depending on the aquifer thickness at the specific site). A borehole abstracting water from a bedrock aquifer should be sealed off through the superficial deposits by installing a length of plain casing to at least 5m below the upper surface of the bedrock. The casing should be grouted effectively in order to minimise the risk of poor-quality surface or shallow groundwater entering the borehole.&nbsp;&nbsp;</ngdc/wp-json/wp/v2/pages/516//p>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<p>/ngdc/wp-json/wp/v2/pages/516/u2022&nbsp;<strong>Water quality</ngdc/wp-json/wp/v2/pages/516//strong>: It is recommended that a water sample, taken during the final stages of the pumping test, is sent for full analysis to a reputable laboratory. They, or if a potable private supply is envisaged the Environmental Health Officer of the local council, should be able to advise on the range of analyses to be undertaken. This would normally include; pathogenic indicator bacteria, iron, manganese and nitrate. An adequate and well-maintained disinfection treatment would be considered advisable for any supply intended for potable use.&nbsp;&nbsp;</ngdc/wp-json/wp/v2/pages/516//p>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<h2 class=/ngdc/wp-json/wp/v2/pages/516/"wp-block-heading/ngdc/wp-json/wp/v2/pages/516/">Further guidance on physical core&nbsp;</ngdc/wp-json/wp/v2/pages/516//h2>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<p>Present-day methods of boring do not produce cores from the majority of boreholes for water. Nevertheless, specimens obtained should be as good as possible, and their depths below the ground surface recorded as accurately as possible. Care should be given to the description of strata recorded in the journal.&nbsp;</ngdc/wp-json/wp/v2/pages/516//p>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<p>Cores, when taken, should be laid out in regular order with marks at intervals showing depths of origin, and gaps in which the cores are absent or imperfect should be marked with an indication of the extent of the missing core and such fragmentary specimens as have been obtained at that depth should be retained in place.&nbsp;&nbsp;</ngdc/wp-json/wp/v2/pages/516//p>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<p>Specimens of the material obtained in well sinking should be laid out in order, and those from each depth should be kept together. If any band encountered contains fossils, all materials from that band should be kept together as those fossils may furnish important evidence of the geological horizon penetrated in the sinking.&nbsp;&nbsp;</ngdc/wp-json/wp/v2/pages/516//p>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<p>Any portions of cores or materials from well sinking or borings of special interest, or liable to disintegrate if exposed to rain and the action of the air, should receive special attention to ensure their preservation. Precautions should be taken to prevent disturbance by members of the public, or by cattle, sheep or other animals.&nbsp;&nbsp;</ngdc/wp-json/wp/v2/pages/516//p>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/n<p>In cases of special interest, it may be desirable for repeated visits to be paid by the officers of the NGDC to a well or borehole under construction and it is requested that, when desired, notification of the progress of work and particularly of any unforeseen developments should be sent to the 51ÁÔÆæ to ensure that no valuable information should be lost. For this purpose, it is hoped that the active co-operation of the contractors undertaking the work will be extended to the officers of the NGDC.&nbsp;</ngdc/wp-json/wp/v2/pages/516//p>/ngdc/wp-json/wp/v2/pages/516/n</ngdc/wp-json/wp/v2/pages/516//div></ngdc/wp-json/wp/v2/pages/516//div></ngdc/wp-json/wp/v2/pages/516//div></ngdc/wp-json/wp/v2/pages/516//section>/ngdc/wp-json/wp/v2/pages/516/n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":0,"parent":514,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"1","_relevanssi_noindex_reason":"","footnotes":""},"tags":[],"class_list":["post-516","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//yoast.com/ngdc/wp-json/wp/v2/pages/516//product/ngdc/wp-json/wp/v2/pages/516//yoast-seo-wordpress/ngdc/wp-json/wp/v2/pages/516// -->/ngdc/wp-json/wp/v2/pages/516/n<title>Borehole drilling and deposit guidance - NGDC</ngdc/wp-json/wp/v2/pages/516//title>/ngdc/wp-json/wp/v2/pages/516/n<meta name=/ngdc/wp-json/wp/v2/pages/516/"robots/ngdc/wp-json/wp/v2/pages/516/" content=/ngdc/wp-json/wp/v2/pages/516/"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1/ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/n<link rel=/ngdc/wp-json/wp/v2/pages/516/"canonical/ngdc/wp-json/wp/v2/pages/516/" href=/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/n<meta property=/ngdc/wp-json/wp/v2/pages/516/"og:locale/ngdc/wp-json/wp/v2/pages/516/" content=/ngdc/wp-json/wp/v2/pages/516/"en_GB/ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/n<meta property=/ngdc/wp-json/wp/v2/pages/516/"og:type/ngdc/wp-json/wp/v2/pages/516/" content=/ngdc/wp-json/wp/v2/pages/516/"article/ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/n<meta property=/ngdc/wp-json/wp/v2/pages/516/"og:title/ngdc/wp-json/wp/v2/pages/516/" content=/ngdc/wp-json/wp/v2/pages/516/"Borehole drilling and deposit guidance - NGDC/ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/n<meta property=/ngdc/wp-json/wp/v2/pages/516/"og:url/ngdc/wp-json/wp/v2/pages/516/" content=/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/n<meta property=/ngdc/wp-json/wp/v2/pages/516/"og:site_name/ngdc/wp-json/wp/v2/pages/516/" content=/ngdc/wp-json/wp/v2/pages/516/"NGDC/ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/n<meta name=/ngdc/wp-json/wp/v2/pages/516/"twitter:card/ngdc/wp-json/wp/v2/pages/516/" content=/ngdc/wp-json/wp/v2/pages/516/"summary_large_image/ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/n<meta name=/ngdc/wp-json/wp/v2/pages/516/"twitter:label1/ngdc/wp-json/wp/v2/pages/516/" content=/ngdc/wp-json/wp/v2/pages/516/"Estimated reading time/ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/n/ngdc/wp-json/wp/v2/pages/516/t<meta name=/ngdc/wp-json/wp/v2/pages/516/"twitter:data1/ngdc/wp-json/wp/v2/pages/516/" content=/ngdc/wp-json/wp/v2/pages/516/"3 minutes/ngdc/wp-json/wp/v2/pages/516/" /ngdc/wp-json/wp/v2/pages/516//>/ngdc/wp-json/wp/v2/pages/516/n<script type=/ngdc/wp-json/wp/v2/pages/516/"application/ngdc/wp-json/wp/v2/pages/516//ld+json/ngdc/wp-json/wp/v2/pages/516/" class=/ngdc/wp-json/wp/v2/pages/516/"yoast-schema-graph/ngdc/wp-json/wp/v2/pages/516/">{/ngdc/wp-json/wp/v2/pages/516/"@context/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//schema.org/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"@graph/ngdc/wp-json/wp/v2/pages/516/":[{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"WebPage/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"@id/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"url/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"name/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"Borehole drilling and deposit guidance - NGDC/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"isPartOf/ngdc/wp-json/wp/v2/pages/516/":{/ngdc/wp-json/wp/v2/pages/516/"@id/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#website/ngdc/wp-json/wp/v2/pages/516/"},/ngdc/wp-json/wp/v2/pages/516/"datePublished/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"2025-07-28T12:53:56+00:00/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"breadcrumb/ngdc/wp-json/wp/v2/pages/516/":{/ngdc/wp-json/wp/v2/pages/516/"@id/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//#breadcrumb/ngdc/wp-json/wp/v2/pages/516/"},/ngdc/wp-json/wp/v2/pages/516/"inLanguage/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"en-GB/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"potentialAction/ngdc/wp-json/wp/v2/pages/516/":[{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"ReadAction/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"target/ngdc/wp-json/wp/v2/pages/516/":[/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/"]}]},{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"BreadcrumbList/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"@id/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//#breadcrumb/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"itemListElement/ngdc/wp-json/wp/v2/pages/516/":[{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"ListItem/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"position/ngdc/wp-json/wp/v2/pages/516/":1,/ngdc/wp-json/wp/v2/pages/516/"name/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"Home/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"item/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/"},{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"ListItem/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"position/ngdc/wp-json/wp/v2/pages/516/":2,/ngdc/wp-json/wp/v2/pages/516/"name/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"Support and guidance/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"item/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/"},{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"ListItem/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"position/ngdc/wp-json/wp/v2/pages/516/":3,/ngdc/wp-json/wp/v2/pages/516/"name/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"Drilling legislation and obligations/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"item/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/"},{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"ListItem/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"position/ngdc/wp-json/wp/v2/pages/516/":4,/ngdc/wp-json/wp/v2/pages/516/"name/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"Borehole drilling and deposit guidance/ngdc/wp-json/wp/v2/pages/516/"}]},{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"WebSite/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"@id/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#website/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"url/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"name/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"NGDC/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"description/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/" Collecting and preserving geoscientific data and information/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"publisher/ngdc/wp-json/wp/v2/pages/516/":{/ngdc/wp-json/wp/v2/pages/516/"@id/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#organization/ngdc/wp-json/wp/v2/pages/516/"},/ngdc/wp-json/wp/v2/pages/516/"potentialAction/ngdc/wp-json/wp/v2/pages/516/":[{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"SearchAction/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"target/ngdc/wp-json/wp/v2/pages/516/":{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"EntryPoint/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"urlTemplate/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//?s={search_term_string}/ngdc/wp-json/wp/v2/pages/516/"},/ngdc/wp-json/wp/v2/pages/516/"query-input/ngdc/wp-json/wp/v2/pages/516/":{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"PropertyValueSpecification/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"valueRequired/ngdc/wp-json/wp/v2/pages/516/":true,/ngdc/wp-json/wp/v2/pages/516/"valueName/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"search_term_string/ngdc/wp-json/wp/v2/pages/516/"}}],/ngdc/wp-json/wp/v2/pages/516/"inLanguage/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"en-GB/ngdc/wp-json/wp/v2/pages/516/"},{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"Organization/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"@id/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#organization/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"name/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"NGDC/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"url/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"logo/ngdc/wp-json/wp/v2/pages/516/":{/ngdc/wp-json/wp/v2/pages/516/"@type/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"ImageObject/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"inLanguage/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"en-GB/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"@id/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#/ngdc/wp-json/wp/v2/pages/516//schema/ngdc/wp-json/wp/v2/pages/516//logo/ngdc/wp-json/wp/v2/pages/516//image/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"url/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-content/ngdc/wp-json/wp/v2/pages/516//uploads/ngdc/wp-json/wp/v2/pages/516//sites/ngdc/wp-json/wp/v2/pages/516//2/ngdc/wp-json/wp/v2/pages/516//2021/ngdc/wp-json/wp/v2/pages/516//04/ngdc/wp-json/wp/v2/pages/516//cropped-BGS_NGDC_pos-2.png/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"contentUrl/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-content/ngdc/wp-json/wp/v2/pages/516//uploads/ngdc/wp-json/wp/v2/pages/516//sites/ngdc/wp-json/wp/v2/pages/516//2/ngdc/wp-json/wp/v2/pages/516//2021/ngdc/wp-json/wp/v2/pages/516//04/ngdc/wp-json/wp/v2/pages/516//cropped-BGS_NGDC_pos-2.png/ngdc/wp-json/wp/v2/pages/516/",/ngdc/wp-json/wp/v2/pages/516/"width/ngdc/wp-json/wp/v2/pages/516/":315,/ngdc/wp-json/wp/v2/pages/516/"height/ngdc/wp-json/wp/v2/pages/516/":98,/ngdc/wp-json/wp/v2/pages/516/"caption/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"NGDC/ngdc/wp-json/wp/v2/pages/516/"},/ngdc/wp-json/wp/v2/pages/516/"image/ngdc/wp-json/wp/v2/pages/516/":{/ngdc/wp-json/wp/v2/pages/516/"@id/ngdc/wp-json/wp/v2/pages/516/":/ngdc/wp-json/wp/v2/pages/516/"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#/ngdc/wp-json/wp/v2/pages/516//schema/ngdc/wp-json/wp/v2/pages/516//logo/ngdc/wp-json/wp/v2/pages/516//image/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516/"}}]}</ngdc/wp-json/wp/v2/pages/516//script>/ngdc/wp-json/wp/v2/pages/516/n<!-- /ngdc/wp-json/wp/v2/pages/516// Yoast SEO plugin. -->","yoast_head_json":{"title":"Borehole drilling and deposit guidance - NGDC","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//","og_locale":"en_GB","og_type":"article","og_title":"Borehole drilling and deposit guidance - NGDC","og_url":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//","og_site_name":"NGDC","twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"3 minutes"},"schema":{"@context":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//schema.org","@graph":[{"@type":"WebPage","@id":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//","url":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//","name":"Borehole drilling and deposit guidance - NGDC","isPartOf":{"@id":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#website"},"datePublished":"2025-07-28T12:53:56+00:00","breadcrumb":{"@id":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//"]}]},{"@type":"BreadcrumbList","@id":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//borehole-drilling-and-deposit-guidance/ngdc/wp-json/wp/v2/pages/516//#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//"},{"@type":"ListItem","position":2,"name":"Support and guidance","item":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//"},{"@type":"ListItem","position":3,"name":"Drilling legislation and obligations","item":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//support-and-guidance/ngdc/wp-json/wp/v2/pages/516//drilling-legislation-and-obligations/ngdc/wp-json/wp/v2/pages/516//"},{"@type":"ListItem","position":4,"name":"Borehole drilling and deposit guidance"}]},{"@type":"WebSite","@id":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#website","url":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//","name":"NGDC","description":" Collecting and preserving geoscientific data and information","publisher":{"@id":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#organization","name":"NGDC","url":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#/ngdc/wp-json/wp/v2/pages/516//schema/ngdc/wp-json/wp/v2/pages/516//logo/ngdc/wp-json/wp/v2/pages/516//image/ngdc/wp-json/wp/v2/pages/516//","url":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-content/ngdc/wp-json/wp/v2/pages/516//uploads/ngdc/wp-json/wp/v2/pages/516//sites/ngdc/wp-json/wp/v2/pages/516//2/ngdc/wp-json/wp/v2/pages/516//2021/ngdc/wp-json/wp/v2/pages/516//04/ngdc/wp-json/wp/v2/pages/516//cropped-BGS_NGDC_pos-2.png","contentUrl":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-content/ngdc/wp-json/wp/v2/pages/516//uploads/ngdc/wp-json/wp/v2/pages/516//sites/ngdc/wp-json/wp/v2/pages/516//2/ngdc/wp-json/wp/v2/pages/516//2021/ngdc/wp-json/wp/v2/pages/516//04/ngdc/wp-json/wp/v2/pages/516//cropped-BGS_NGDC_pos-2.png","width":315,"height":98,"caption":"NGDC"},"image":{"@id":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//#/ngdc/wp-json/wp/v2/pages/516//schema/ngdc/wp-json/wp/v2/pages/516//logo/ngdc/wp-json/wp/v2/pages/516//image/ngdc/wp-json/wp/v2/pages/516//"}}]}},"_links":{"self":[{"href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-json/ngdc/wp-json/wp/v2/pages/516//wp/ngdc/wp-json/wp/v2/pages/516//v2/ngdc/wp-json/wp/v2/pages/516//pages/ngdc/wp-json/wp/v2/pages/516//516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-json/ngdc/wp-json/wp/v2/pages/516//wp/ngdc/wp-json/wp/v2/pages/516//v2/ngdc/wp-json/wp/v2/pages/516//pages"}],"about":[{"href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-json/ngdc/wp-json/wp/v2/pages/516//wp/ngdc/wp-json/wp/v2/pages/516//v2/ngdc/wp-json/wp/v2/pages/516//types/ngdc/wp-json/wp/v2/pages/516//page"}],"author":[{"embeddable":true,"href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-json/ngdc/wp-json/wp/v2/pages/516//wp/ngdc/wp-json/wp/v2/pages/516//v2/ngdc/wp-json/wp/v2/pages/516//users/ngdc/wp-json/wp/v2/pages/516//3"}],"replies":[{"embeddable":true,"href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-json/ngdc/wp-json/wp/v2/pages/516//wp/ngdc/wp-json/wp/v2/pages/516//v2/ngdc/wp-json/wp/v2/pages/516//comments?post=516"}],"version-history":[{"count":5,"href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-json/ngdc/wp-json/wp/v2/pages/516//wp/ngdc/wp-json/wp/v2/pages/516//v2/ngdc/wp-json/wp/v2/pages/516//pages/ngdc/wp-json/wp/v2/pages/516//516/ngdc/wp-json/wp/v2/pages/516//revisions"}],"predecessor-version":[{"id":623,"href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-json/ngdc/wp-json/wp/v2/pages/516//wp/ngdc/wp-json/wp/v2/pages/516//v2/ngdc/wp-json/wp/v2/pages/516//pages/ngdc/wp-json/wp/v2/pages/516//516/ngdc/wp-json/wp/v2/pages/516//revisions/ngdc/wp-json/wp/v2/pages/516//623"}],"up":[{"embeddable":true,"href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-json/ngdc/wp-json/wp/v2/pages/516//wp/ngdc/wp-json/wp/v2/pages/516//v2/ngdc/wp-json/wp/v2/pages/516//pages/ngdc/wp-json/wp/v2/pages/516//514"}],"wp:attachment":[{"href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-json/ngdc/wp-json/wp/v2/pages/516//wp/ngdc/wp-json/wp/v2/pages/516//v2/ngdc/wp-json/wp/v2/pages/516//media?parent=516"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//www.bgs.ac.uk/ngdc/wp-json/wp/v2/pages/516//ngdc/ngdc/wp-json/wp/v2/pages/516//wp-json/ngdc/wp-json/wp/v2/pages/516//wp/ngdc/wp-json/wp/v2/pages/516//v2/ngdc/wp-json/wp/v2/pages/516//tags?post=516"}],"curies":[{"name":"wp","href":"https:/ngdc/wp-json/wp/v2/pages/516///ngdc/wp-json/wp/v2/pages/516//api.w.org/ngdc/wp-json/wp/v2/pages/516//{rel}","templated":true}]}}