{"id":5185,"date":"2024-04-04T15:03:14","date_gmt":"2024-04-04T18:03:14","guid":{"rendered":"https:\/\/grupoep.com.br\/surface-water\/"},"modified":"2026-01-13T08:39:38","modified_gmt":"2026-01-13T11:39:38","slug":"surface-water","status":"publish","type":"page","link":"https:\/\/grupoep.com.br\/en\/services\/environmental-analyses\/surface-water\/","title":{"rendered":"Surface water"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"5185\" class=\"elementor elementor-5185 elementor-864\" wpc-filter-elementor-widget=\"1\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-60546dd e-flex e-con-boxed e-con e-parent\" data-id=\"60546dd\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-cef2a10 e-con-full e-flex e-con e-child\" data-id=\"cef2a10\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c15148d animated-slow elementor-invisible elementor-widget elementor-widget-image\" data-id=\"c15148d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;zoomIn&quot;,&quot;_animation_delay&quot;:5}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"620\" height=\"556\" src=\"https:\/\/grupoep.com.br\/wp-content\/uploads\/2024\/04\/logo-analitica.png\" class=\"attachment-large size-large wp-image-4410\" alt=\"\" srcset=\"https:\/\/grupoep.com.br\/wp-content\/uploads\/2024\/04\/logo-analitica.png 620w, https:\/\/grupoep.com.br\/wp-content\/uploads\/2024\/04\/logo-analitica-600x538.png 600w, https:\/\/grupoep.com.br\/wp-content\/uploads\/2024\/04\/logo-analitica-300x269.png 300w\" sizes=\"(max-width: 620px) 100vw, 620px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d58063b e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"d58063b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeInRight&quot;,&quot;animation_delay&quot;:5}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-09dffe3 elementor-widget elementor-widget-heading\" data-id=\"09dffe3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Surface water<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d4ae761 elementor-widget elementor-widget-text-editor\" data-id=\"d4ae761\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\tEnvironmental Analysis Laboratories Certified\nby ISO17025\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1c21e16 e-flex e-con-boxed e-con e-parent\" data-id=\"1c21e16\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8e1173b pp-buttons-halign-stretch elementor-widget__width-inherit pp-buttons-valign-middle pp-buttons-stack-none elementor-widget elementor-widget-pp-buttons\" data-id=\"8e1173b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"pp-buttons.default\">\n\t\t\t\t\t\t\t<div class=\"pp-buttons-group\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/grupoep.com.br\/services\/environmental-testing\/?lang=en\" class=\"pp-button elementor-button elementor-size-sm elementor-repeater-item-358fc2d \">\n\t\t\t\t\t<div class=\"pp-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"pp-button-content-inner pp-icon-before\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<span class=\"pp-button-title\">\n\t\t\t\t\t\t\t\t\tEnvironmental Analysis\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/grupoep.com.br\/services\/environmental-testing\/potability\/?lang=en\" class=\"pp-button elementor-button elementor-size-sm elementor-repeater-item-d8ce331 \">\n\t\t\t\t\t<div class=\"pp-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"pp-button-content-inner pp-icon-before\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<span class=\"pp-button-title\">\n\t\t\t\t\t\t\t\t\tPotability\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/grupoep.com.br\/services\/environmental-testing\/surface-water\/?lang=en\" class=\"pp-button elementor-button elementor-size-sm elementor-repeater-item-5396bb3 \">\n\t\t\t\t\t<div class=\"pp-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"pp-button-content-inner pp-icon-before\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<span class=\"pp-button-title\">\n\t\t\t\t\t\t\t\t\tSurface water\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/grupoep.com.br\/services\/environmental-testing\/groundwater\/?lang=en\" class=\"pp-button elementor-button elementor-size-sm elementor-repeater-item-137971a \">\n\t\t\t\t\t<div class=\"pp-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"pp-button-content-inner pp-icon-before\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<span class=\"pp-button-title\">\n\t\t\t\t\t\t\t\t\tGroundwater\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f212d61 elementor-widget__width-inherit animated-slow elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"f212d61\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;,&quot;_animation_delay&quot;:10}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Surface water\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-004f9a2 elementor-align-center elementor-widget__width-inherit animated-slow elementor-invisible elementor-widget elementor-widget-button\" data-id=\"004f9a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;slideInUp&quot;,&quot;_animation_delay&quot;:5}\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/grupoep.com.br\/budget\/?lang=en\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get a quote from us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-05a7542 e-con-full e-flex e-con e-child\" data-id=\"05a7542\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7d626b1 elementor-widget elementor-widget-text-editor\" data-id=\"7d626b1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Surface water analysis<\/strong> is an essential process for assessing the quality and health of water bodies such as rivers, lakes and reservoirs. This evaluation makes it possible to identify possible contamination and to monitor the presence of harmful substances, ensuring the safety of the water and protection of the environment.<\/p><p>Surface water analysis is important because surface water plays a vital role in supplying various human activities, such as consumption, agriculture, and industry. Moreover, adequate water quality is essential for the balance and survival of aquatic ecosystems.<\/p><p>Surface water collection sites may vary depending on the purpose and context of surface water analysis. Collections are usually carried out at strategic points along bodies of water such as rivers, lakes, reservoirs, ponds, streams and springs.<\/p><div class=\"wp-container-1 wp-block-buttons\"><ol><li>Ponds<\/li><li>Rivers<\/li><li>Springs<\/li><li>Coastal areas and estuaries<\/li><li>Affluents<\/li><li>Balneability<\/li><\/ol><p><br>It is important to emphasize that the selection of collection points should be based on a careful analysis of the characteristics of the watershed, nearby human activities, and the specific objectives of the surface water analysis. In addition, it is essential to follow proper sample collection protocols to ensure the representativeness and accuracy of the results.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-caeba76 e-con-full e-flex e-con e-child\" data-id=\"caeba76\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eed6f30 elementor-skin-carousel elementor-arrows-yes elementor-widget elementor-widget-media-carousel\" data-id=\"eed6f30\" data-element_type=\"widget\" data-e-type=\"widget\" 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data-widget_type=\"media-carousel.default\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-main-swiper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Slides\">\n\t\t\t\t<div class=\"swiper-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-carousel-image\" role=\"img\" aria-label=\"Surface water analysis\" style=\"background-image: url(&#039;https:\/\/grupoep.com.br\/wp-content\/uploads\/2024\/04\/Analise-de-aguas-superficiais.png&#039;)\">\n\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-carousel-image\" role=\"img\" aria-label=\"Surface water analysis\" style=\"background-image: url(&#039;https:\/\/grupoep.com.br\/wp-content\/uploads\/2024\/04\/Analise-de-aguas-superficiais.jpeg&#039;)\">\n\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\" aria-label=\"Previous\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-left\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M646 125C629 125 613 133 604 142L308 442C296 454 292 471 292 487 292 504 296 521 308 533L604 854C617 867 629 875 646 875 663 875 679 871 692 858 704 846 713 829 713 812 713 796 708 779 692 767L438 487 692 225C700 217 708 204 708 187 708 171 704 154 692 142 675 129 663 125 646 125Z\"><\/path><\/svg>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\" aria-label=\"Next\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-right\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M696 533C708 521 713 504 713 487 713 471 708 454 696 446L400 146C388 133 375 125 354 125 338 125 325 129 313 142 300 154 292 171 292 187 292 204 296 221 308 233L563 492 304 771C292 783 288 800 288 817 288 833 296 850 308 863 321 871 338 875 354 875 371 875 388 867 400 854L696 533Z\"><\/path><\/svg>\t\t\t\t\t\t<\/div>\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\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3dc360d elementor-widget__width-inherit animated-slow elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"3dc360d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;,&quot;_animation_delay&quot;:10}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Type of analyses performed in surface water, within the process:\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-06d8b94 elementor-grid-3 elementor-grid-tablet-2 elementor-grid-mobile-1 pp-info-box-above-title elementor-widget elementor-widget-pp-info-box-carousel\" data-id=\"06d8b94\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;equal_height_boxes&quot;:&quot;yes&quot;}\" data-widget_type=\"pp-info-box-carousel.default\">\n\t\t\t\t\t\t\t<div class=\"pp-info-box-container elementor-grid pp-info-box-equal-height\">\n\t\t\t\n\t\t\t\t\t\t\t<div class=\"pp-info-box elementor-grid-item\">\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<div class=\"pp-info-box-content\">\n\t\t\t\t\t\t\t\t<div class=\"pp-info-box-title-wrap\">\n\t\t\t\t\t\t\t<div class=\"pp-info-box-title-container\">\n\t\t\t\t\t<h4 class=\"pp-info-box-title\">\n\t\t\t\t\t\tPhysico-chemical analysis\t\t\t\t\t<\/h4>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"pp-info-box-description\">\n\t\t\t\t\t\t\t\t<p>They include parameters such as pH, turbidity, electrical conductivity, dissolved oxygen, biochemical oxygen demand (BOD), chemical oxygen demand (COD), nutrients (nitrogen and phosphorus), among others. These parameters help in understanding the physical and chemical characteristics of the water, as well as in identifying possible sources of contamination.<\/p>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"pp-info-box elementor-grid-item\">\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<div class=\"pp-info-box-content\">\n\t\t\t\t\t\t\t\t<div class=\"pp-info-box-title-wrap\">\n\t\t\t\t\t\t\t<div class=\"pp-info-box-title-container\">\n\t\t\t\t\t<h4 class=\"pp-info-box-title\">\n\t\t\t\t\t\tMetal analysis\t\t\t\t\t<\/h4>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"pp-info-box-description\">\n\t\t\t\t\t\t\t\t<p>They involve the detection and quantification of metallic elements present in water, such as lead, mercury, cadmium, copper and zinc, among others. The excessive presence of heavy metals can be harmful to human health and aquatic ecosystems, so their evaluation is essential to ensure water safety.<\/p>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"pp-info-box elementor-grid-item\">\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<div class=\"pp-info-box-content\">\n\t\t\t\t\t\t\t\t<div class=\"pp-info-box-title-wrap\">\n\t\t\t\t\t\t\t<div class=\"pp-info-box-title-container\">\n\t\t\t\t\t<h4 class=\"pp-info-box-title\">\n\t\t\t\t\t\tMicrobiological analysis\t\t\t\t\t<\/h4>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"pp-info-box-description\">\n\t\t\t\t\t\t\t\t<p>They aim to detect the presence of pathogenic organisms such as fecal coliforms, bacteria and viruses, which can indicate fecal contamination and pose risks to public health. In addition, the presence of algae, cyanobacteria, and other microorganisms is also evaluated.<\/p>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9111407 elementor-widget elementor-widget-text-editor\" data-id=\"9111407\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Surface water analysis helps us to take preventive and corrective measures, enabling the implementation of effective environmental management strategies.<\/p><p>CONAMA Resolution No. 357 establishes guidelines and classifies waters into different types, according to their uses and characteristics. The types of water defined are:<\/p><ol><li>Freshwater: Those with low salinity content, used in agriculture, industry, public supply, and even for human consumption, among other uses.<\/li><li>Brackish Water: Those with intermediate salinity levels, generally located in coastal regions or in areas where saline intrusion occurs. They are limited for direct human consumption, but can be used in agricultural and industrial activities.<\/li><li>Saltwater: those with a high salinity content, such as that found in the oceans.<\/li><\/ol><p><br>EP Analytics is the EP Group&#8217;s INMETRO accredited laboratory for environmental analyses. We have been the fastest growing accredited laboratory of environmental analysis in Brazil for 6 years.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-934ebf6 elementor-align-center elementor-widget__width-inherit animated-slow elementor-invisible elementor-widget elementor-widget-button\" data-id=\"934ebf6\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;slideInUp&quot;,&quot;_animation_delay&quot;:5}\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/grupoep.com.br\/budget\/?lang=en\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get a quote from us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Surface water Environmental Analysis Laboratories Certified by ISO17025 Environmental Analysis Potability Surface water Groundwater Surface water Get a quote from us Surface water analysis is an essential process for assessing the quality and health of water bodies such as rivers, lakes and reservoirs. This evaluation makes it possible to identify possible contamination and to monitor [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":5191,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-5185","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Surface water - Grupo EP<\/title>\n<meta name=\"description\" content=\"Surface water analysis is an essential process for assessing the quality and health of water bodies such as rivers, lakes and reservoirs.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/grupoep.com.br\/en\/services\/environmental-analyses\/surface-water\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Surface water\" \/>\n<meta property=\"og:description\" content=\"Surface water analysis is an essential process for assessing the quality and health of water bodies such as rivers, lakes and reservoirs.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/grupoep.com.br\/en\/services\/environmental-analyses\/surface-water\/\" \/>\n<meta property=\"og:site_name\" content=\"Grupo EP\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/epengenharia\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-13T11:39:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/grupoep.com.br\/wp-content\/uploads\/2024\/04\/logo-analitica.png\" \/>\n\t<meta property=\"og:image:width\" content=\"620\" \/>\n\t<meta property=\"og:image:height\" content=\"556\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. 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:\\\/\\\/grupoep.com.br\\\/en\\\/services\\\/environmental-analyses\\\/surface-water\\\/\",\"url\":\"https:\\\/\\\/grupoep.com.br\\\/en\\\/services\\\/environmental-analyses\\\/surface-water\\\/\",\"name\":\"Surface water - 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