{"id":3901,"date":"2025-08-05T09:49:12","date_gmt":"2025-08-05T08:49:12","guid":{"rendered":"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline\/baseline-chemistry-uk-aquifers\/baseline-reports\/"},"modified":"2026-06-03T15:38:47","modified_gmt":"2026-06-03T14:38:47","slug":"baseline-reports","status":"publish","type":"page","link":"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/","title":{"rendered":"Baseline reports"},"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>Baseline reports<\/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\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/\"><span class=\"icon-facebook\"><span class=\"hidden\">Facebook<\/span><\/span><\/a><a target=\"_blank\"  href=\"https:\/\/twitter.com\/intent\/tweet?text=Baseline%20reports&#038;url=https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/\"><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\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/\"><span class=\"icon-whatsapp\"><span class=\"hidden\">WhatsApp<\/span><\/span><\/a><a   href=\"mailto:?subject=Baseline%20reports&#038;body=%20(https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/)\"><span class=\"icon-mail\"><span class=\"hidden\">Email<\/span><\/span><\/a><a href=\"#\" data-copy=\"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/\" 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<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 has an established programme of research on the baseline chemistry of groundwater from aquifers in England, Wales and Scotland. Each baseline report provides a summary of the inorganic chemical status of groundwaters in each study area or aquifer, and the key pressures on regional water quality. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Download the reports<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Our UK baseline reports are listed by region on the following pages, or click on a region on the map.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline\/england-and-wales\/\">England and Wales<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline\/scotland-reports\/\">Scotland<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><\/h2>\n<\/div><\/div><\/div><\/section>\n\n\n\n<link href=\"https:\/\/resources.bgs.ac.uk\/leaflet\/leafletSVG.css\" rel=\"stylesheet\">\n<link href=\"https:\/\/resources.bgs.ac.uk\/leaflet\/fullscreen\/leaflet.fullscreenSVG.css\" rel=\"stylesheet\">\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/leaflet.js\"><\/script>\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/bgs-sites\/uk-centre-coords.js\"><\/script>\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/fullscreen\/leaflet.fullscreen.min.js\"><\/script>\n<div id=\"map\" style=\"width: 100%;height: 45em\"><\/div>\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/groundwater\/quality\/Baseline.GeoJSON\"><\/script>\n<script src=\"https:\/\/resources.bgs.ac.uk\/leaflet\/groundwater\/quality\/map.js\"><\/script>\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=\"https:\/\/www.bgs.ac.uk\/contact-the-person\/?employee=smedley-pauline\"  class=\"button primary-background   \">Contact Pauline Smedley<\/a><\/div>\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\t\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":7,"featured_media":0,"parent":1995,"menu_order":1,"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-3901","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Baseline reports - 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\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Baseline reports - BGS Groundwater\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/\" \/>\n<meta property=\"og:site_name\" content=\"BGS Groundwater\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-03T14:38:47+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/quality\\\/baseline-chemistry-uk-aquifers\\\/baseline-reports\\\/\",\"url\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/quality\\\/baseline-chemistry-uk-aquifers\\\/baseline-reports\\\/\",\"name\":\"Baseline reports - BGS Groundwater\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/#website\"},\"datePublished\":\"2025-08-05T08:49:12+00:00\",\"dateModified\":\"2026-06-03T14:38:47+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/quality\\\/baseline-chemistry-uk-aquifers\\\/baseline-reports\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/quality\\\/baseline-chemistry-uk-aquifers\\\/baseline-reports\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/quality\\\/baseline-chemistry-uk-aquifers\\\/baseline-reports\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Quality\",\"item\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/quality\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Baseline chemistry of groundwater in UK aquifers\",\"item\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/quality\\\/baseline-chemistry-uk-aquifers\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Baseline reports\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/#website\",\"url\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/\",\"name\":\"BGS Groundwater\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/#organization\",\"name\":\"BGS Groundwater\",\"url\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2026\\\/05\\\/BGS_Groundwater_pos-object-text-clip.svg\",\"contentUrl\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2026\\\/05\\\/BGS_Groundwater_pos-object-text-clip.svg\",\"width\":472,\"height\":98,\"caption\":\"BGS Groundwater\"},\"image\":{\"@id\":\"https:\\\/\\\/www.bgs.ac.uk\\\/groundwater\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Baseline reports - BGS Groundwater","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:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/","og_locale":"en_GB","og_type":"article","og_title":"Baseline reports - BGS Groundwater","og_url":"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/","og_site_name":"BGS Groundwater","article_modified_time":"2026-06-03T14:38:47+00:00","twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/","url":"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/","name":"Baseline reports - BGS Groundwater","isPartOf":{"@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#website"},"datePublished":"2025-08-05T08:49:12+00:00","dateModified":"2026-06-03T14:38:47+00:00","breadcrumb":{"@id":"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/baseline-reports\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.bgs.ac.uk\/groundwater\/"},{"@type":"ListItem","position":2,"name":"Quality","item":"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/"},{"@type":"ListItem","position":3,"name":"Baseline chemistry of groundwater in UK aquifers","item":"https:\/\/www.bgs.ac.uk\/groundwater\/quality\/baseline-chemistry-uk-aquifers\/"},{"@type":"ListItem","position":4,"name":"Baseline reports"}]},{"@type":"WebSite","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#website","url":"https:\/\/www.bgs.ac.uk\/groundwater\/","name":"BGS Groundwater","description":"","publisher":{"@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.bgs.ac.uk\/groundwater\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#organization","name":"BGS Groundwater","url":"https:\/\/www.bgs.ac.uk\/groundwater\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#\/schema\/logo\/image\/","url":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2026\/05\/BGS_Groundwater_pos-object-text-clip.svg","contentUrl":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2026\/05\/BGS_Groundwater_pos-object-text-clip.svg","width":472,"height":98,"caption":"BGS Groundwater"},"image":{"@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/pages\/3901","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/comments?post=3901"}],"version-history":[{"count":11,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/pages\/3901\/revisions"}],"predecessor-version":[{"id":8426,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/pages\/3901\/revisions\/8426"}],"up":[{"embeddable":true,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/pages\/1995"}],"wp:attachment":[{"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/media?parent=3901"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/tags?post=3901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}