{"id":50008,"date":"2026-11-10T16:45:09","date_gmt":"2026-11-10T19:45:09","guid":{"rendered":"https:\/\/agenciainfra.com\/blog\/?p=50008"},"modified":"2026-11-10T16:45:16","modified_gmt":"2026-11-10T19:45:16","slug":"ana-declara-escassez-hidrica-nos-rios-tacutu-e-mau-em-roraima","status":"publish","type":"post","link":"https:\/\/agenciainfra.com\/blog\/ana-declara-escassez-hidrica-nos-rios-tacutu-e-mau-em-roraima\/","title":{"rendered":"ANA declara escassez h\u00eddrica nos rios Tacutu e Ma\u00fa, em Roraima"},"content":{"rendered":"\n<p class=\"has-text-align-right wp-block-paragraph\"><strong>da Ag\u00eancia iNFRA<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A ANA (Ag\u00eancia Nacional de \u00c1guas e Saneamento B\u00e1sico), por meio da Resolu\u00e7\u00e3o 311\/2026, publicada nesta ter\u00e7a-feira (10) no DOU (Di\u00e1rio Oficial da Uni\u00e3o), declarou, pela primeira vez, situa\u00e7\u00e3o cr\u00edtica de escassez quantitativa de recursos h\u00eddricos nos rios Tacutu e Ma\u00fa (RR), afluentes do rio Branco.<br><br>A medida busca prevenir os impactos da seca sobre os usos dos recursos h\u00eddricos e ficar\u00e1 vigente at\u00e9 30 de abril de 2027. O prazo poder\u00e1 ser prorrogado caso a situa\u00e7\u00e3o cr\u00edtica persista ou encerrado antecipadamente, mediante avalia\u00e7\u00e3o t\u00e9cnica, se houver recupera\u00e7\u00e3o das condi\u00e7\u00f5es hidrometeorol\u00f3gicas e hidrol\u00f3gicas dos rios.<br><br>A declara\u00e7\u00e3o tamb\u00e9m prev\u00ea orientar os usu\u00e1rios dos rios Tacutu e Ma\u00fa a acionar seus planos de conting\u00eancia. Entre as a\u00e7\u00f5es que poder\u00e3o ser adotadas, caso necess\u00e1rio, est\u00e3o restri\u00e7\u00f5es ao uso da \u00e1gua, regras tempor\u00e1rias especiais para a opera\u00e7\u00e3o de reservat\u00f3rios e mecanismos tarif\u00e1rios de conting\u00eancia para prestadores de servi\u00e7os de abastecimento de \u00e1gua.<br><br>Para declarar a situa\u00e7\u00e3o de escassez h\u00eddrica, a ANA considerou as condi\u00e7\u00f5es hidrol\u00f3gicas e climatol\u00f3gicas da bacia do rio Branco, al\u00e9m da perspectiva de agravamento do quadro at\u00e9 meados de abril de 2027, quando come\u00e7a a esta\u00e7\u00e3o chuvosa na regi\u00e3o.<br><br>Na avalia\u00e7\u00e3o da ag\u00eancia, o d\u00e9ficit de precipita\u00e7\u00e3o chegou a 390 mil\u00edmetros nos 12 meses entre outubro de 2025 e setembro de 2026. A falta de chuva contribuiu para que os n\u00edveis dos rios ficassem abaixo da normalidade e atingissem m\u00ednimas hist\u00f3ricas para o per\u00edodo em algumas esta\u00e7\u00f5es fluviom\u00e9tricas de monitoramento.<br><br>Historicamente, o per\u00edodo chuvoso na bacia ocorre entre abril e setembro, enquanto a esta\u00e7\u00e3o seca vai de outubro a mar\u00e7o. Diante desse padr\u00e3o e das proje\u00e7\u00f5es clim\u00e1ticas desfavor\u00e1veis para a regi\u00e3o, a tend\u00eancia \u00e9 de continuidade da queda dos n\u00edveis dos rios.<br><br>Segundo a ANA, esse cen\u00e1rio pode comprometer diferentes usos da \u00e1gua, especialmente as estruturas de capta\u00e7\u00e3o destinadas aos usos consuntivos, que envolvem o consumo de \u00e1gua, e a navega\u00e7\u00e3o.<br><br>As an\u00e1lises hidrol\u00f3gicas tamb\u00e9m apontam queda acentuada e antecipada dos n\u00edveis dos rios Tacutu e Ma\u00fa, do eixo principal do rio Branco e de seus demais afluentes. Dados da RHN (Rede Hidrometeorol\u00f3gica Nacional) indicam cotas abaixo dos registros hist\u00f3ricos em outubro, com previs\u00e3o de agravamento ao longo do per\u00edodo seco.<br><br>Para acompanhar o cen\u00e1rio, identificar poss\u00edveis impactos sobre os usos da \u00e1gua na bacia do rio Branco e propor medidas de preven\u00e7\u00e3o e mitiga\u00e7\u00e3o, a ANA monitorar\u00e1 as condi\u00e7\u00f5es hidrometeorol\u00f3gicas da regi\u00e3o por meio da Sala de Crise da Regi\u00e3o Norte. A pr\u00f3xima reuni\u00e3o est\u00e1 prevista para 4 de dezembro.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>da Ag\u00eancia iNFRA A ANA (Ag\u00eancia Nacional de \u00c1guas e Saneamento B\u00e1sico), por meio da Resolu\u00e7\u00e3o 311\/2026, publicada nesta ter\u00e7a-feira (10) no DOU (Di\u00e1rio Oficial da Uni\u00e3o), declarou, pela primeira vez, situa\u00e7\u00e3o cr\u00edtica de escassez quantitativa de recursos h\u00eddricos nos rios Tacutu e Ma\u00fa (RR), afluentes do rio Branco. A medida busca prevenir os impactos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":50011,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[13576],"tags":[21416,22166,4714,14499,2859,22702,22704,16676,22701,22700,634,22703],"class_list":["post-50008","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-giro-infra","tag-ana-agencia-nacional-de-aguas","tag-dou-diario-oficial-da-uniao","tag-escassez-hidrica","tag-plano-de-contingencia","tag-recursos-hidricos","tag-restricoes-ao-uso-da-agua","tag-rhn-rede-hidrometeorologica-nacional","tag-rio-branco","tag-rio-mau","tag-rio-tacutu","tag-roraima","tag-sala-de-crise-da-regiao-norte"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.4 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>ANA declara escassez h\u00eddrica nos rios Tacutu e Ma\u00fa, em Roraima - Ag\u00eancia iNFRA<\/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:\/\/agenciainfra.com\/blog\/ana-declara-escassez-hidrica-nos-rios-tacutu-e-mau-em-roraima\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ANA declara escassez h\u00eddrica nos rios Tacutu e Ma\u00fa, em Roraima\" \/>\n<meta property=\"og:description\" content=\"da Ag\u00eancia iNFRA A ANA (Ag\u00eancia Nacional de \u00c1guas e Saneamento B\u00e1sico), por meio da Resolu\u00e7\u00e3o 311\/2026, publicada nesta ter\u00e7a-feira (10) no DOU (Di\u00e1rio Oficial da Uni\u00e3o), declarou, pela primeira vez, situa\u00e7\u00e3o cr\u00edtica de escassez quantitativa de recursos h\u00eddricos nos rios Tacutu e Ma\u00fa (RR), afluentes do rio Branco. 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