{"id":30,"date":"2023-11-15T15:06:08","date_gmt":"2023-11-15T15:06:08","guid":{"rendered":"https:\/\/www.bgs.ac.uk\/groundwater\/data-and-information\/groundwater-levels\/"},"modified":"2025-12-22T13:57:16","modified_gmt":"2025-12-22T13:57:16","slug":"groundwater-levels","status":"publish","type":"page","link":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/","title":{"rendered":"Groundwater level data"},"content":{"rendered":"\t\t\t<section class=\"hero-section hero-section-with-social\">\n\t\t\t\t\t\t\t\t<div class=\"hero-info-wrap\">\n\t\t\t\t\t<div class=\"container\">\n\t\t\t\t\t\t<div class=\"row\">\n\t\t\t\t\t\t\t<div class=\"col-12\">\n\t\t\t\t\t\t\t\t<div class=\"hero-info\">\n\t\t\t\t\t\t\t\t\t<h1>Groundwater level data<\/h1>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n\t\t\t<div class=\"social-wrap social-wrap-inline-them\">\n\t\t\t\t<div class=\"sea-background-f\">\n\t\t\t\t\t<span>Share this article<\/span><a target=\"_blank\"  href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/\"><span class=\"icon-facebook\"><span class=\"hidden\">Facebook<\/span><\/span><\/a><a target=\"_blank\"  href=\"https:\/\/twitter.com\/intent\/tweet?text=Groundwater%20level%20data&#038;url=https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/\"><span class=\"icon-twitter\"><span class=\"hidden\">Twitter<\/span><\/span><\/a><a   onclick=\"javascript:void( (function() {var e=document.createElement('script' );e.setAttribute('type','text\/javascript' );e.setAttribute('charset','UTF-8' );e.setAttribute('src','\/\/assets.pinterest.com\/js\/pinmarklet.js?r='+Math.random()*99999999);document.body.appendChild(e)})());\"  href=\"javascript:void(0);\"><span class=\"icon-pinterest\"><span class=\"hidden\">Pinterest<\/span><\/span><\/a><a target=\"_blank\"  href=\"https:\/\/wa.me?text=https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/\"><span class=\"icon-whatsapp\"><span class=\"hidden\">WhatsApp<\/span><\/span><\/a><a   href=\"mailto:?subject=Groundwater%20level%20data&#038;body=BGS%20collects%20groundwater%20level%20data%20through%20many%20of%20its%20research%20projects%20and%20hosts%20the%20National%20Groundwater%20Level%20Archive.%20(https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/)\"><span class=\"icon-mail\"><span class=\"hidden\">Email<\/span><\/span><\/a><a href=\"#\" data-copy=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/\" class=\"copy-url-on-click\"><span class=\"icon-link\"><span class=\"hidden\">Copy Link<\/span><\/span><\/a><\/div><\/div>\t\t\t\t\t\t\t<\/section>\n\t\t\t\n\n\n<div id=\"mapid\" style=\"width: 100%;height: 50em\"><\/div>\n<link href=\"https:\/\/resources.bgs.ac.uk\/leaflet\/leafletSVG.css\" rel=\"stylesheet\">\n\n<link href=\"https:\/\/resources.bgs.ac.uk\/leaflet\/fullscreen\/leaflet.fullscreenSVG.css\" rel=\"stylesheet\">\n\n   \n\n<link rel=\"stylesheet\" href=\"https:\/\/resources.bgs.ac.uk\/leaflet\/markercluster\/MarkerCluster.css\">\n\n<link rel=\"stylesheet\" href=\"https:\/\/resources.bgs.ac.uk\/leaflet\/markercluster\/MarkerCluster.Default.css\">\n\n<link rel=\"stylesheet\" href=\"https:\/\/resources.bgs.ac.uk\/leaflet\/esri\/esri-leaflet-geocoderSVG.css\">\n\n\n\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/leaflet.js\"><\/script>\n\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/esri\/esri-leaflet.js\"><\/script>\n\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/esri\/esri-leaflet-geocoder.js\"><\/script>\n\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/fullscreen\/leaflet.fullscreen.min.js\"><\/script>\n\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/markercluster\/leaflet.markercluster.js\"><\/script>\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/groundwater\/rsrch-grndwtr-datainfo-lvls-info.js\"><\/script>\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/groundwater\/uk-centre-coords.js\"><\/script>\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/groundwater\/rsrch-grndwtr-datainfo-lvls-map.js\"><\/script>\n\n\n\n<section class=\"wp-block-bgs-blocks-content-container content-section\"><div class=\"container\"><div class=\"row\"><div class=\"col-12\">\n<p class=\"wp-block-paragraph\">BGS collects groundwater level data in many of our research projects and hosts the&nbsp;<a href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/national-groundwater-level-archive\/\">National Groundwater Level Archive<\/a>, which is the UK&#8217;s national repository for groundwater level data. We are currently working to make groundwater level data available via this website. You can access data summaries and hydrographs through the map above, or go to each site via the table.<\/p>\n\n\n\t\t\t<div id=\"wysiwyg-8628-block_e43848c632e396e9ddfa211a67638dc4\" class=\"  \" >\n\t\t\t<p>&nbsp;<\/p>\n<div class=\"col-12 responsive-table\"><table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Location<\/span><\/td>\n<td><span style=\"font-weight: 400;\">WellMaster ID<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Grid ref<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Aquifer<\/span><\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"http:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/alstonefield\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Alstonefield<\/span><\/span><\/a><\/td>\n<td>SK15\/16<\/td>\n<td>4129 3554<\/td>\n<td>Carboniferous limestone<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/ampney-crucis\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Ampney Crucis<\/span><\/span><\/a><\/td>\n<td>SP00\/62<\/td>\n<td>4059 2019<\/td>\n<td>Jurassic limestone<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/ashton-farm\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Ashton Farm<\/span><\/span><\/a><\/td>\n<td>SY68\/34<\/td>\n<td>3661 0880<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/aylesby\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Aylesby<\/span><\/span><\/a><\/td>\n<td>TA10\/63<\/td>\n<td>5194 4071<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/bussels-no-7a\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Bussels No. 7A<\/span><\/span><\/a><\/td>\n<td>SX99\/37B<\/td>\n<td>2952 0987<\/td>\n<td>Permo\u2013Triassic sandstone<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/chilgrove-house\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Chilgrove House<\/span><\/span><\/a><\/td>\n<td>SU81\/1<\/td>\n<td>4835 1143<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/chipstead-gwl-well-house-inn\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Chipstead GWL (Well House Inn)<\/span><\/span><\/a><\/td>\n<td>TQ25\/86<\/td>\n<td>5258 1552<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/clanville-lodge-gate\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Clanville Lodge Gate<\/span><\/span><\/a><\/td>\n<td>SU34\/8D<\/td>\n<td>4322 1490<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/dalton-holme\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Dalton Holme<\/span><\/span><\/a><\/td>\n<td>SE94\/5<\/td>\n<td>4965 4453<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/didmarton-1\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Didmarton 1<\/span><\/span><\/a><\/td>\n<td>ST88\/62A<\/td>\n<td>3827 1874<\/td>\n<td>Inferior Oolite<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/furness-abbey\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Furness Abbey<\/span><\/span><\/a><\/td>\n<td>SD27\/6B<\/td>\n<td>3216 4717<\/td>\n<td>Permo\u2013Triassic sandstone<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/grimes-graves\/\"><span style=\"color: #333333;\">Grimes Graves<\/span><\/a><\/td>\n<td>TL89\/37<\/td>\n<td>5817 2900<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/heathlanes\/\"><span style=\"color: #333333;\">Heathlanes<\/span><\/a><\/td>\n<td>SJ62\/112<\/td>\n<td>3619 3210<\/td>\n<td>Permo\u2013Triassic sandstone<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/hucklow-south\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Hucklow South<\/span><\/span><\/a><\/td>\n<td>SK17\/13<\/td>\n<td>4177 3775<\/td>\n<td>Carboniferous limestone<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/little-bucket-farm\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Little Bucket Farm<\/span><\/span><\/a><\/td>\n<td>TR14\/9<\/td>\n<td>6122 1469<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/llanfair-dyffryn-clwyd\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Llanfair Dyffryn Clwyd<\/span><\/span><\/a><\/td>\n<td>SJ15\/13<\/td>\n<td>3137 3555<\/td>\n<td>Permo\u2013Triassic sandstone<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/lower-barn-cottage\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Lower Barn Cottage<\/span><\/span><\/a><\/td>\n<td>TQ41\/82<\/td>\n<td>5437 1132<\/td>\n<td>Lower Greensand<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/new-red-lion\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">New Red Lion<\/span><\/span><\/a><\/td>\n<td>TF03\/37<\/td>\n<td>5088 3303<\/td>\n<td>Lincolnsire Limestone<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/newbridge\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Newbridge<\/span><\/span><\/a><\/td>\n<td>NX97\/2<\/td>\n<td>2951 5788<\/td>\n<td>Permo\u2013Triassic sandstone<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/rockley\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Rockley<\/span><\/span><\/a><\/td>\n<td>SU17\/57<\/td>\n<td>4165 1717<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/skirwith\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Skirwith<\/span><\/span><\/a><\/td>\n<td>NY63\/2<\/td>\n<td>3613 5325<\/td>\n<td>Permo\u2013Triassic sandstone<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/stonor-park\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Stonor Park<\/span><\/span><\/a><\/td>\n<td>SU78\/45A<\/td>\n<td>4741 1892<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/swan-house\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Swan House<\/span><\/span><\/a><\/td>\n<td>NZ21\/29<\/td>\n<td>4252 5199<\/td>\n<td>Magnesian limestone<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/therfield-rectory\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Therfield Rectory<\/span><\/span><\/a><\/td>\n<td>TL33\/4<\/td>\n<td>5333 2372<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/washpit-farm\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Washpit Farm<\/span><\/span><\/a><\/td>\n<td>TF81\/2A<\/td>\n<td>5813 3196<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/west-dean-no-3\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Westdean No. 3<\/span><\/span><\/a><\/td>\n<td>TV59\/7C<\/td>\n<td>5529 0992<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/west-woodyates-manor\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">West Woodyates Manor<\/span><\/span><\/a><\/td>\n<td>SU01\/5B<\/td>\n<td>4016 1194<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a class=\"bodyLink\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/wetwang\/\"><span style=\"color: #333333;\"><span style=\"color: #333333;\">Wetwang<\/span><\/span><\/a><\/td>\n<td>SE95\/6<\/td>\n<td>4957 4593<\/td>\n<td>Chalk<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/yew-tree-farm\/\">Yew Tree Farm<\/a><\/td>\n<td>SD41\/32<\/td>\n<td>3440 4116<\/td>\n<td>Permo\u2013Triassic sandstone<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n\t\t\t<\/div>\n\t\t\t\n\n\n<h2 class=\"wp-block-heading\">Why monitor groundwater levels?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Measurements of the depth below the ground surface of the water table, or its height above sea level, are a key dataset for understanding groundwater. Groundwater levels depend on aquifer properties, local geological conditions and a complex balance between recharge from rainfall and discharges to rivers or pumped abstraction. The data can be used to quantify resources, to understand the flow of groundwater and to measure the impacts of abstraction.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/groundwater-level-terminology\/\">Groundwater level<\/a>, as measured in an observation borehole, reflects the amount of water in storage in the monitored aquifer. When recharge exceeds natural discharge plus abstraction, groundwater levels rise; conversely, groundwater levels fall when recharge is less than natural discharge plus abstraction.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Comparisons of measured groundwater levels with long-term averages provide an indication of the state of groundwater resources within an aquifer. Observation over several years allows the prediction of aquifer response to current climatic and hydrological conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The data from the archive are used to prepare archive products such as the monthly hydrological summaries, annual summaries and the statistics volume. The data are used for quantitative analyses, for instance of annual recharge, and provide a valuable source of data for the calibration of groundwater models.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/groundwater-level-terminology\/about-bgs-groundwater-level-data\/\">More about BGS&#8217;s groundwater level data<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how\">How are groundwater levels measured?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Groundwater levels are measured manually using a dipper or automatically by a pressure transducer. Automatic readings may be stored in a datalogger that is visited periodically and downloaded by field staff, or sent automatically over the phone network to a database in a data centre (telemetry). However,&nbsp;<a href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/errors-in-groundwater-level-measurement\/\">errors in groundwater level measurement<\/a>&nbsp;can occur.<\/p>\n<\/div><\/div><\/div><\/section>\n\n\n<section class=\"cta-section  sea-background-e \">\n\t<div class=\"container\">\n\t\t<div class=\"row md-row\">\n\t\t\t<div class=\"col-12\">\n\t\t\t\t<h2>Need more information?<\/h2>\t\t\t\t\t\t\t\t<div class=\"btn-wrap\"><a href=\"mailto:enquiries@bgs.ac.uk\"  class=\"button primary-background   \">Contact BGS Enquiries<\/a><\/div>\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\t","protected":false},"excerpt":{"rendered":"<p>BGS collects groundwater level data through many of its research projects and hosts the National Groundwater Level Archive.<\/p>\n","protected":false},"author":3,"featured_media":3572,"parent":23,"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-30","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Groundwater level data - BGS Groundwater<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Groundwater level data - BGS Groundwater\" \/>\n<meta property=\"og:description\" content=\"BGS collects groundwater level data through many of its research projects and hosts the National Groundwater Level Archive.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/groundwater-levels\/\" \/>\n<meta property=\"og:site_name\" content=\"BGS Groundwater\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-22T13:57:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2025\/07\/P895165.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"667\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/data\\\/groundwater-levels\\\/\",\"url\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/data\\\/groundwater-levels\\\/\",\"name\":\"Groundwater level data - BGS Groundwater\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/data\\\/groundwater-levels\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/data\\\/groundwater-levels\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2025\\\/07\\\/P895165.jpg\",\"datePublished\":\"2023-11-15T15:06:08+00:00\",\"dateModified\":\"2025-12-22T13:57:16+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/data\\\/groundwater-levels\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/data\\\/groundwater-levels\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/data\\\/groundwater-levels\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2025\\\/07\\\/P895165.jpg\",\"contentUrl\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2025\\\/07\\\/P895165.jpg\",\"width\":1000,\"height\":667,\"caption\":\"artesian groundwater borehole at the UKCEH campus in Wallingford, Oxfordshire, England. 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