{"id":30795,"date":"2026-01-29T11:47:58","date_gmt":"2026-01-29T10:47:58","guid":{"rendered":"https:\/\/www.revistanuclear.es\/?p=30795"},"modified":"2026-01-29T11:48:13","modified_gmt":"2026-01-29T10:48:13","slug":"twenty-thousand-leagues-of-journey-for-scrap-clearance-at-almaraz-npp","status":"publish","type":"post","link":"https:\/\/www.revistanuclear.es\/en\/climate-and-environment\/twenty-thousand-leagues-of-journey-for-scrap-clearance-at-almaraz-npp\/","title":{"rendered":"Twenty thousand leagues of journey for scrap clearance (at Almaraz NPP)"},"content":{"rendered":"<p style=\"text-align: justify;\"><div class=\"rn-icon-panel__wrap\" style=\"display:flex;justify-content:flex-start;\"><a class=\"rn-icon-panel descargar\" href=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Desclasificacion-de-chatarras.pdf\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" style=\"--rn-bg:#8baf31;--rn-color:#ffffff;--rn-border:0px solid;--rn-shadow:0px 0px 0px;--rn-rounded:12px;--rn-padding:14px;--rn-gap:10px;--rn-icon-size:30px;\"><span class=\"rn-icon-panel__icon\" aria-hidden=\"true\"><img src=\"https:\/\/revistanuclear.es\/wp-content\/uploads\/2022\/12\/click.png\" alt=\"\" loading=\"lazy\" decoding=\"async\" \/><\/span><span class=\"rn-icon-panel__text\">SEE FULL VERSION<\/span><\/a><br><\/div><span class=\"su-dropcap su-dropcap-style-simple\" style=\"font-size:2.5em\">D<\/span><span style=\"font-weight: 400;\">uring the operation of the <strong>Almaraz Nuclear Power Plant<\/strong>, metallic scrap was generated as a result of <strong>design modifications, equipment replacement<\/strong>, and other activities. These materials were stored in <strong>ten 35 m\u00b3 containers in ATRSR-2<\/strong> warehouse. After analyzing the <strong>preliminary information<\/strong>, it was determined that approximately <strong>33% of the scrap<\/strong>\u2014around 25 tonnes\u2014showed sufficiently low surface contamination and dose rate to be considered <strong>eligible for clearance<\/strong>.<\/span><\/p>\n<h5><b>Regulatory framework for declassification in Spain<\/b><\/h5>\n<p><span style=\"font-weight: 400;\">In 2017, the process to obtain <strong>clearance authorization<\/strong> began. That same year, <strong>Order ETU\/1185\/2017<\/strong> was published, establishing for the first time in Spain a specific regulatory framework for the clearance of residual materials from nuclear facilities. This regulation replaced the previous case-by-case authorization system and allowed <strong>licensees to carry out clearance directly<\/strong>, provided that the established <strong>reference levels were met<\/strong>.<\/span><\/p>\n<h5><b>Test Plan and equipment validation<\/b><\/h5>\n<p><span style=\"font-weight: 400;\">Under this regulatory framework, the plant was required to submit to the <strong>Nuclear Safety Council (CSN)<\/strong> a schedule for implementing the <strong>Radiological Characterization Test Plan<\/strong>. The main tasks included, among others, the development of procedures, the execution of commissioning tests for the equipment, and the development of a methodology to determine hard-to-measure radionuclides.<\/span><\/p>\n<figure id=\"attachment_30870\" aria-describedby=\"caption-attachment-30870\" style=\"width: 646px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer.jpg\"><img loading=\"lazy\" decoding=\"async\" loading=\"lazy\" class=\" wp-image-30870\" src=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-1024x640.jpg\" alt=\"Dise\u00f1o de la geometr\u00eda con geometry composer.\" width=\"646\" height=\"404\" srcset=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-1024x640.jpg 1024w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-300x188.jpg 300w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-770x481.jpg 770w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-500x313.jpg 500w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-293x183.jpg 293w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer.jpg 1280w\" sizes=\"auto, (max-width: 646px) 100vw, 646px\" \/><figcaption id=\"caption-attachment-30870\" class=\"wp-caption-text\"><noscript><img fetchpriority=\"high\" decoding=\"async\" class=\" wp-image-30870\" src=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-1024x640.jpg\" alt=\"Dise\u00f1o de la geometr\u00eda con geometry composer.\" width=\"646\" height=\"404\" srcset=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-1024x640.jpg 1024w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-300x188.jpg 300w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-770x481.jpg 770w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-500x313.jpg 500w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer-293x183.jpg 293w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Diseno-con-geometry-composer.jpg 1280w\" sizes=\"(max-width: 646px) 100vw, 646px\" \/><\/noscript><\/a> <em>Geometry design using Geometry Composer.<\/em><\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">The commissioning tests aimed to validate the <strong>gamma-spectrometry equipment<\/strong> (in this case ISOCS) for different geometries and waste configurations, ensuring their suitability as radiological characterization tools for material clearance. <strong>More than 500 tests<\/strong> were performed with varying fill levels, densities, measurement times, source distributions, and activity levels. The results demonstrated that both systems were adequate.<\/span><\/p>\n<h5><b>Hard-to-measure radionuclides and final authorization<\/b><\/h5>\n<p><span style=\"font-weight: 400;\">Regarding <strong>hard-to-measure radionuclides<\/strong>\u2014mainly alpha and beta emitters\u2014the plant needed to develop its own scaling factors, as the existing ones were not applicable. <strong>Between 2017 and 2023<\/strong>, <strong>43 samples<\/strong> were analyzed. Due to the <strong>low activity of key radionuclides<\/strong>, it was decided to assign an activity concentration (CdA) to each radionuclide based on geometric means and conservative values. Additionally, <strong>an annual verification procedure<\/strong> was established <strong>for future waste<\/strong>.<\/span><\/p>\n<figure id=\"attachment_30866\" aria-describedby=\"caption-attachment-30866\" style=\"width: 654px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN.png\"><img loading=\"lazy\" decoding=\"async\" loading=\"lazy\" class=\" wp-image-30866\" src=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN.png\" alt=\"Apreciaci\u00f3n favorable del CSN\" width=\"654\" height=\"334\" srcset=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN.png 979w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN-300x153.png 300w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN-770x393.png 770w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN-500x255.png 500w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN-293x150.png 293w\" sizes=\"auto, (max-width: 654px) 100vw, 654px\" \/><figcaption id=\"caption-attachment-30866\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\" wp-image-30866\" src=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN.png\" alt=\"Apreciaci\u00f3n favorable del CSN\" width=\"654\" height=\"334\" srcset=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN.png 979w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN-300x153.png 300w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN-770x393.png 770w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN-500x255.png 500w, https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/CSN-293x150.png 293w\" sizes=\"(max-width: 654px) 100vw, 654px\" \/><\/noscript><\/a> <em>Favorable assessment by the CSN.<\/em><\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">The documentation process included criteria for forming <strong>assessment units (UV)<\/strong>, verification of clearance criteria, rejection management, quality control, and transfer to the Environmental Department.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The <strong>Test Plan<\/strong>, carried out in September 2024 in the presence of the CSN, verified all phases of the process.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Finally, on <strong>6 November 2025<\/strong>, the CSN granted <strong>authorization for the clearance of scrap metal<\/strong>, limited to CMT containers under specific conditions of density, composition, filling level, measurement method, and isotopic type.<\/span><\/p>\n<p class=\"p1\"><div class=\"rn-icon-panel__wrap\" style=\"display:flex;justify-content:flex-start;\"><a class=\"rn-icon-panel\" href=\"https:\/\/www.revistanuclear.es\/wp-content\/uploads\/2026\/01\/Desclasificacion-de-chatarras.pdf\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" style=\"--rn-bg:#8baf31;--rn-color:#ffffff;--rn-border:0px solid;--rn-shadow:0px 0px 0px;--rn-rounded:12px;--rn-padding:14px;--rn-gap:10px;--rn-icon-size:0px;\"><span class=\"rn-icon-panel__icon\" aria-hidden=\"true\"><img src=\"https:\/\/revistanuclear.es\/wp-content\/uploads\/2022\/12\/click.png\" alt=\"\" loading=\"lazy\" decoding=\"async\" \/><\/span><span class=\"rn-icon-panel__text\">SEE FULL VERSION<\/span><\/a><br><\/div>\n","protected":false},"excerpt":{"rendered":"<p>uring the operation of the Almaraz Nuclear Power Plant, metallic scrap was generated as a result of design modifications, equipment replacement, and other activities. These materials were stored in ten 35 m\u00b3 containers in ATRSR-2 warehouse. After analyzing the preliminary information, it was determined that approximately 33% of the scrap\u2014around 25 tonnes\u2014showed sufficiently low surface contamination and dose rate to be considered eligible for clearance. Regulatory framework for declassification in Spain In 2017, the process to obtain clearance authorization began. [&hellip;]<\/p>\n","protected":false},"author":1632,"featured_media":30804,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"mc4wp_mailchimp_campaign":[],"footnotes":""},"categories":[83],"tags":[4152,1709,3146],"coauthors":[3594,4154,4156,4158],"class_list":["post-30795","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-climate-and-environment","tag-almaraz-nuclear-power-plant","tag-declassification","tag-waste-management"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Twenty thousand leagues of journey for scrap clearance (at Almaraz NPP) - Climate and Environment<\/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.revistanuclear.es\/en\/climate-and-environment\/twenty-thousand-leagues-of-journey-for-scrap-clearance-at-almaraz-npp\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Twenty thousand leagues of journey for scrap clearance (at Almaraz NPP) - Climate and Environment\" \/>\n<meta property=\"og:description\" content=\"uring the operation of the Almaraz Nuclear Power Plant, metallic scrap was generated as a result of design modifications, equipment replacement, and other activities. These materials were stored in ten 35 m\u00b3 containers in ATRSR-2 warehouse. After analyzing the preliminary information, it was determined that approximately 33% of the scrap\u2014around 25 tonnes\u2014showed sufficiently low surface contamination and dose rate to be considered eligible for clearance. Regulatory framework for declassification in Spain In 2017, the process to obtain clearance authorization began. 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These materials were stored in ten 35 m\u00b3 containers in ATRSR-2 warehouse. After analyzing the preliminary information, it was determined that approximately 33% of the scrap\u2014around 25 tonnes\u2014showed sufficiently low surface contamination and dose rate to be considered eligible for clearance. Regulatory framework for declassification in Spain In 2017, the process to obtain clearance authorization began. 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