{"id":2220,"date":"2018-07-10T15:54:27","date_gmt":"2018-07-11T01:54:27","guid":{"rendered":"https:\/\/www.service-public.pf\/diren\/?page_id=2220"},"modified":"2025-04-16T09:44:07","modified_gmt":"2025-04-16T19:44:07","slug":"eaux-usees","status":"publish","type":"page","link":"https:\/\/www.service-public.pf\/diren\/eaux-usees\/","title":{"rendered":"Les eaux us\u00e9es"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-title title fusion-title-1 fusion-title-text fusion-title-size-one\" style=\"--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:20px;--awb-margin-left-small:0px;\"><h1 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">L&rsquo;assainissement des eaux us\u00e9es<\/h1><span class=\"awb-title-spacer\"><\/span><div class=\"title-sep-container\"><div class=\"title-sep sep-double sep-solid\" style=\"border-color:#e0dede;\"><\/div><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_2 1_2 fusion-one-half fusion-column-first\" style=\"--awb-bg-size:cover;width:50%;width:calc(50% - ( ( 4% ) * 0.5 ) );margin-right: 4%;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-image-element in-legacy-container\" style=\"--awb-bottom-shadow-color:rgba(0,0,0,0.4);--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><div class=\"awb-image-frame awb-image-frame-1 awb-bottomshadow\"><span class=\" fusion-imageframe imageframe-bottomshadow imageframe-1 hover-type-none\" style=\"border:1px solid #545454;\"><img decoding=\"async\" src=\"https:\/\/www.service-public.pf\/diren\/wp-content\/uploads\/sites\/17\/2018\/06\/assainissement-eau-1024x768.jpg\" alt class=\"img-responsive\"\/><\/span><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.1\" width=\"100%\" viewBox=\"0 0 600 28\" preserveAspectRatio=\"none\"><g clip-path=\"url(#a)\"><mask id=\"b\" style=\"mask-type:luminance\" maskUnits=\"userSpaceOnUse\" x=\"0\" y=\"0\" width=\"600\" height=\"28\"><path d=\"M0 0h600v28H0V0Z\" fill=\"#fff\"\/><\/mask><g filter=\"url(#c)\" mask=\"url(#b)\"><path d=\"M16.439-18.667h567.123v30.8S438.961-8.4 300-8.4C161.04-8.4 16.438 12.133 16.438 12.133v-30.8Z\" fill=\"#000\"\/><\/g><\/g><defs><clipPath id=\"a\"><path fill=\"#fff\" d=\"M0 0h600v28H0z\"\/><\/clipPath><filter id=\"c\" x=\"5.438\" y=\"-29.667\" width=\"589.123\" height=\"52.8\" filterUnits=\"userSpaceOnUse\" color-interpolation-filters=\"sRGB\"><feFlood flood-opacity=\"0\" result=\"BackgroundImageFix\"\/><feBlend in=\"SourceGraphic\" in2=\"BackgroundImageFix\" result=\"shape\"\/><feGaussianBlur stdDeviation=\"5.5\" result=\"effect1_foregroundBlur_3983_183\"\/><\/filter><\/defs><\/svg><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_2 1_2 fusion-one-half fusion-column-last\" style=\"--awb-bg-size:cover;width:50%;width:calc(50% - ( ( 4% ) * 0.5 ) );\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-reading-box-container reading-box-container-1\" style=\"--awb-title-color:#333333;--awb-margin-top:0px;--awb-margin-bottom:10px;\"><div class=\"reading-box\" style=\"background-color:rgba(255,255,255,0.7);border-width:0px;border-color:#8bc34a;border-left-width:3px;border-left-color:var(--primary_color);border-style:solid;\"><div class=\"reading-box-additional\">\n<h3>L\u2019assainissement des eaux us\u00e9es est un enjeu essentiel pour :<\/h3>\n<h3>&#8211; la pr\u00e9servation de l\u2019environnement ;<\/h3>\n<h3>&#8211; la salubrit\u00e9 publique et la sant\u00e9 des populations ;<\/h3>\n<h3>&#8211; les activit\u00e9s li\u00e9es \u00e0 l\u2019eau et leur d\u00e9veloppement (tourisme, pisciculture, <em>etc.<\/em>).<\/h3>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-text fusion-text-1\"><p><span class=\"cap coloured-invert\">L<\/span>e rejet des eaux us\u00e9es dans le milieu naturel constitue une menace pour ce dernier et les \u00eatres vivants, car elles sont de nature polluante.<\/p>\n<p>L\u2019assainissement des eaux us\u00e9es est donc une n\u00e9cessit\u00e9 car les rejets d\u2019eaux us\u00e9es non trait\u00e9es peuvent porter atteinte \u00e0 l\u2019environnement, aux ressources en eau douce et \u00e0 la sant\u00e9. En effet, elles peuvent renfermer toutes sortes de polluants et contaminer ainsi les r\u00e9servoirs naturels d\u2019eaux douces dans lesquels nous puisons pour nous alimenter en eau. Il peut alors y avoir des risques de p\u00e9nurie si nous surexploitons les ressources en eaux mais \u00e9galement si elles deviennent pollu\u00e9es et impropres \u00e0 la consommation.<\/p>\n<p><span class=\"cap coloured-invert\">A<\/span>ussi, les eaux us\u00e9es doivent \u00eatre \u00e9vacu\u00e9es rapidement hors des habitations et subir un traitement agr\u00e9\u00e9 par l\u2019administration avant d&rsquo;\u00eatre rejet\u00e9 dans le milieu naturel.<\/p>\n<p><span class=\"cap coloured-invert\">L<\/span>e choix du type d\u2019assainissement est conditionn\u00e9 par plusieurs facteurs et notamment par la densit\u00e9 de population, la nature des sols et leurs aptitudes \u00e0 assurer l\u2019\u00e9puration des eaux us\u00e9es, la pr\u00e9sence de nappes phr\u00e9atiques, l\u2019existence d\u2019un syst\u00e8me d\u2019assainissement collectif public, l\u2019espace disponible, <em>etc.<\/em> mais \u00e9galement par les orientations choisies en mati\u00e8re d\u2019am\u00e9nagement par la collectivit\u00e9\u00a0(\u00e9laboration d\u2019un sch\u00e9ma directeur d\u2019assainissement et sa mise en \u0153uvre).<\/p>\n<\/div><div class=\"accordian fusion-accordian\" style=\"--awb-border-size:1px;--awb-icon-size:13px;--awb-content-font-size:13px;--awb-icon-alignment:left;--awb-hover-color:#f9f9f9;--awb-border-color:#cccccc;--awb-background-color:#ffffff;--awb-divider-color:#e0dede;--awb-divider-hover-color:#e0dede;--awb-icon-color:#ffffff;--awb-title-color:#333333;--awb-content-color:#747474;--awb-icon-box-color:#333333;--awb-toggle-hover-accent-color:#a0ce4e;--awb-title-font-family:&quot;Oswald&quot;;--awb-title-font-weight:400;--awb-title-font-style:normal;--awb-title-font-size:13px;--awb-title-line-height:1.5;--awb-content-font-family:&quot;Roboto&quot;;--awb-content-font-style:normal;--awb-content-font-weight:400;\"><div class=\"panel-group fusion-toggle-icon-boxed\" id=\"accordion-2220-1\"><div class=\"fusion-panel panel-default panel-0062ad27083fa093a fusion-toggle-has-divider\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_0062ad27083fa093a\"><a aria-expanded=\"false\" aria-controls=\"0062ad27083fa093a\" role=\"button\" data-toggle=\"collapse\" data-target=\"#0062ad27083fa093a\" href=\"#0062ad27083fa093a\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">l\u2019assainissement individuel autonome<\/span><\/a><\/h4><\/div><div id=\"0062ad27083fa093a\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_0062ad27083fa093a\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p class=\"rteindent1\">L\u2019assainissement individuel est\u00a0 mis en place dans des zones d\u2019habitats dispers\u00e9s ou \u00e0 faibles densit\u00e9s de population.<\/p>\n<p class=\"rteindent1\">Il concerne les habitations individuelles.<\/p>\n<p class=\"rteindent1\">Il peut \u00eatre envisag\u00e9 si les surfaces disponibles sont suffisantes pour permettre une \u00e9puration des eaux us\u00e9es par le sol\u00a0; et si la nature du sol est adapt\u00e9e (absence de nappes phr\u00e9atiques par exemple). Il est r\u00e9alis\u00e9 avec un dispositif de fosse septique et puisard par exemple.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-7885e19687beaf950 fusion-toggle-has-divider\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_7885e19687beaf950\"><a aria-expanded=\"false\" aria-controls=\"7885e19687beaf950\" role=\"button\" data-toggle=\"collapse\" data-target=\"#7885e19687beaf950\" href=\"#7885e19687beaf950\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">l\u2019assainissement collectif autonome<\/span><\/a><\/h4><\/div><div id=\"7885e19687beaf950\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_7885e19687beaf950\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p class=\"rteindent1\">Interm\u00e9diaire entre le syst\u00e8me individuel autonome et collectif public.<\/p>\n<p class=\"rteindent1\">Il est r\u00e9alis\u00e9 avec un dispositif de mini stations d\u2019\u00e9puration, qui concerne des groupes d\u2019habitations ou toute construction \u00e9quivalente (lotissements par exemple).<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-97949c58f5c1a7fb4 fusion-toggle-has-divider\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_97949c58f5c1a7fb4\"><a aria-expanded=\"false\" aria-controls=\"97949c58f5c1a7fb4\" role=\"button\" data-toggle=\"collapse\" data-target=\"#97949c58f5c1a7fb4\" href=\"#97949c58f5c1a7fb4\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">l\u2019assainissement collectif public<\/span><\/a><\/h4><\/div><div id=\"97949c58f5c1a7fb4\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_97949c58f5c1a7fb4\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p class=\"rteindent1\">L\u2019assainissement collectif est mis en place dans les zones \u00e0 forte densit\u00e9 de population et\/ou forte concentration d\u2019activit\u00e9s.<\/p>\n<p class=\"rteindent1\">Il doit \u00eatre envisag\u00e9 lorsque la nappe phr\u00e9atique est tr\u00e8s peu profonde, ce qui est le cas pour l\u2019habitat en plaine et \u00e0 proximit\u00e9 du lagon\u00a0; mais aussi dans les zones o\u00f9 le tourisme a un r\u00f4le \u00e9conomique primordial et o\u00f9 pr\u00e9server l\u2019environnement est un enjeu incontournable.<\/p>\n<p class=\"rteindent1\">Il est r\u00e9alis\u00e9 avec un dispositif constitu\u00e9 par un r\u00e9seau d\u2019\u00e9gout permettant le transfert des eaux us\u00e9es vers station d\u2019\u00e9puration puis un exutoire de rejet.<\/p>\n<p><span class=\"cap coloured-invert\">A<\/span> l\u2019heure actuelle, Bora Bora, Punaauia, Moorea (zone de Haapiti) et Papeete sont les seules communes \u00e0 disposer d\u2019un assainissement collectif public en service.<\/p>\n<p>L\u2019orientation de la politique en mati\u00e8re d\u2019assainissement vise \u00e0 g\u00e9n\u00e9raliser ce type de traitement, toutes les communes ayant l\u2019obligation d\u2019assurer un service de l\u2019assainissement avant le 31 d\u00e9cembre 2020 (CGCT).<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-5d8db127f4ea91892 fusion-toggle-has-divider\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_5d8db127f4ea91892\"><a aria-expanded=\"false\" aria-controls=\"5d8db127f4ea91892\" role=\"button\" data-toggle=\"collapse\" data-target=\"#5d8db127f4ea91892\" href=\"#5d8db127f4ea91892\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">Les chiffres cl\u00e9s de l'assainissement en Polyn\u00e9sie fran\u00e7aise<\/span><\/a><\/h4><\/div><div id=\"5d8db127f4ea91892\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_5d8db127f4ea91892\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<table border=\"1\" width=\"510\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Assainissement<\/td>\n<td>\n<p align=\"center\"><strong>Source<\/strong><\/p>\n<\/td>\n<td>\n<p align=\"center\"><strong>1995<\/strong><\/p>\n<\/td>\n<td>\n<p align=\"center\"><strong>2005<\/strong><\/p>\n<\/td>\n<td>\n<p align=\"center\"><strong>2013<\/strong><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Nombre de mini stations d\u2019\u00e9puration<\/td>\n<td>\n<p align=\"center\">CHSP<\/p>\n<\/td>\n<td>\n<p align=\"center\">120<\/p>\n<\/td>\n<td>\n<p align=\"center\">201 (<em>2002)<\/em><\/p>\n<\/td>\n<td>\n<p align=\"center\">242<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Nombre de stations collectives publiques<\/td>\n<td>\n<p align=\"center\">\n<\/td>\n<td>\n<p align=\"center\">1<\/p>\n<\/td>\n<td>\n<p align=\"center\">4<\/p>\n<\/td>\n<td>\n<p align=\"center\">4<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Pourcentage de la population raccord\u00e9e \u00e0 un r\u00e9seau public<\/td>\n<td rowspan=\"3\">\n<p align=\"center\">DIREN<\/p>\n<\/td>\n<td>\n<p align=\"center\">\n<\/td>\n<td>\n<p align=\"center\">5%<\/p>\n<\/td>\n<td>\n<p align=\"center\">8%<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Evolution du nombre d\u2019\u00e9quivalent-habitants trait\u00e9s<\/td>\n<td>\n<p align=\"center\">\n<\/td>\n<td>\n<p align=\"center\">13 000<\/p>\n<\/td>\n<td>\n<p align=\"center\">22 900<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Evolution des d\u00e9penses du Pays pour l\u2019assainissement (millions de F CFP)<\/td>\n<td>\n<p align=\"center\">1.4<\/p>\n<\/td>\n<td>\n<p align=\"center\">4.2<\/p>\n<p align=\"center\">(2002-2006)<\/p>\n<\/td>\n<td>\n<p align=\"center\">3.69<\/p>\n<p align=\"center\">(2007-2013)<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div><\/div>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-text fusion-text-2\"><p><span style=\"color: #ffffff\">3<\/span><\/p>\n<p><strong>RESSOURCES A DESTINATION DES COMMUNES<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.service-public.pf\/diren\/wp-content\/uploads\/sites\/17\/2019\/01\/Mod\u00e8le-cahier-des-charges_SDAEU_DIREN_V-26_10_-2018-1.docx\">Mod\u00e8le de cahier des charges pour l&rsquo;\u00e9tude de d\u00e9finition du sch\u00e9ma directeur d&rsquo;assainissement des eaux us\u00e9es<\/a><\/li>\n<li><a href=\"https:\/\/www.service-public.pf\/diren\/wp-content\/uploads\/sites\/17\/2025\/04\/Elements-de-communication-sur-les-consequences-de-la-mauvaise-gestion-des-eaux-usees-domestiques.pdf\">\u00c9l\u00e9ments de communication sur les cons\u00e9quences de la mauvaise gestion des eaux us\u00e9es domestiques et des mati\u00e8res de vidange (boues et graisses)<\/a><\/li>\n<\/ul>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-margin-top:0px;--awb-margin-bottom:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_2_3 2_3 fusion-two-third fusion-column-first\" style=\"--awb-bg-size:cover;width:66.666666666667%;width:calc(66.666666666667% - ( ( 4% ) * 0.66666666666667 ) );margin-right: 4%;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-5 fusion_builder_column_1_3 1_3 fusion-one-third fusion-column-last\" style=\"--awb-bg-size:cover;width:33.333333333333%;width:calc(33.333333333333% - ( ( 4% ) * 0.33333333333333 ) );\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-sharing-box fusion-sharing-box-1 has-taglines layout-floated layout-medium-floated layout-small-floated\" style=\"background-color:#f6f6f6;--awb-layout:row;--awb-alignment-small:space-between;\" data-title=\"Les eaux us\u00e9es\" data-description=\"L&#039;assainissement des eaux us\u00e9es  \r\nL\u2019assainissement des eaux us\u00e9es est un enjeu essentiel pour :\r\n- la pr\u00e9servation de l\u2019environnement ;\r\n- la salubrit\u00e9 publique et la sant\u00e9 des populations ;\r\n- les activit\u00e9s li\u00e9es \u00e0 l\u2019eau et leur d\u00e9veloppement (tourisme, pisciculture, etc.). \r\n\r\nLe rejet des eaux us\u00e9es dans le milieu naturel constitue une\" 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