{"id":23469,"date":"2023-08-15T14:25:33","date_gmt":"2023-08-15T02:25:33","guid":{"rendered":"https:\/\/atlan.co.nz\/?p=23469"},"modified":"2026-01-23T07:33:21","modified_gmt":"2026-01-23T07:33:21","slug":"sqidep-myth-hydraulics-and-treatment-flowrates","status":"publish","type":"post","link":"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/","title":{"rendered":"SQIDEP Myth: Are Hydraulic &#038; Treatment Flowrates Part of the Assessment?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"23469\" class=\"elementor elementor-23469\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-18e6591 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"18e6591\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b4a364d\" data-id=\"b4a364d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-203b024 elementor-alert-info elementor-widget elementor-widget-alert\" data-id=\"203b024\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"alert.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-alert\" role=\"alert\">\n\n\t\t\t\t\t\t<span class=\"elementor-alert-title\">SQIDEP Myth: Hydraulics &amp; Treatment Flowrates Are Not Part of the Assessment<\/span>\n\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-alert-description\">Myth Claim: Hydraulic and treatment flowrates are not reported in SQIDEP's assessment process.<\/span>\n\t\t\t\n\t\t\t\t\t\t<button type=\"button\" class=\"elementor-alert-dismiss\" aria-label=\"Dismiss this alert.\">\n\t\t\t\t\t\t\t\t\t<span aria-hidden=\"true\">&times;<\/span>\n\t\t\t\t\t\t\t<\/button>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ea07064 elementor-widget elementor-widget-text-editor\" data-id=\"ea07064\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>This claim is incorrect and hydraulics &amp; treatment flowrates are key criteria in SQIDEP&#8217;s assessment requirements.<\/p><p>SQIDEP (<a href=\"https:\/\/www.stormwater.asn.au\/images\/SQIDEP\/SQIDEP_report_v1.3.pdf\">Page 32, Table 3 \u2014 Minimum data and qualifying event requirements for assessment<\/a>) states that at least 2 events should exceed 75% of the design water quality volume\/TFR and 1 event must exceed 100% of the TFR. Flowrates (hydrographs) must be submitted to satisfy this requirement.<\/p>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>SQIDEP Myth: Hydraulics &amp; Treatment Flowrates Are Not Part of the Assessment Myth Claim: Hydraulic and treatment flowrates are not reported in SQIDEP&#8217;s assessment process. \u00d7 Dismiss this alert. This claim is incorrect and hydraulics &amp; treatment flowrates are key criteria in SQIDEP&#8217;s assessment requirements. SQIDEP (Page 32, Table 3 \u2014 Minimum data and qualifying [&hellip;]<\/p>\n","protected":false},"author":1028,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[12,13],"tags":[],"class_list":["post-23469","post","type-post","status-publish","format-standard","hentry","category-faq","category-sqidep-faq"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SQIDEP Myth: Hydraulic &amp; Treatment Flowrates<\/title>\n<meta name=\"description\" content=\"Clarifying the SQIDEP myth on hydraulic and treatment flowrates, explaining how flow measurements are used in assessing stormwater device performance and compliance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQIDEP Myth: Hydraulic &amp; Treatment Flowrates\" \/>\n<meta property=\"og:description\" content=\"Clarifying the SQIDEP myth on hydraulic and treatment flowrates, explaining how flow measurements are used in assessing stormwater device performance and compliance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/\" \/>\n<meta property=\"og:site_name\" content=\"Atlan Stormwater New Zealand\" \/>\n<meta property=\"article:published_time\" content=\"2023-08-15T02:25:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-23T07:33:21+00:00\" \/>\n<meta name=\"author\" content=\"creative@shellgraphix.com.au\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"creative@shellgraphix.com.au\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/sqidep-myth-hydraulics-and-treatment-flowrates\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/sqidep-myth-hydraulics-and-treatment-flowrates\\\/\"},\"author\":{\"name\":\"creative@shellgraphix.com.au\",\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/#\\\/schema\\\/person\\\/d90b282df636c4a0a32bd5b0b48d5216\"},\"headline\":\"SQIDEP Myth: Are Hydraulic &#038; Treatment Flowrates Part of the Assessment?\",\"datePublished\":\"2023-08-15T02:25:33+00:00\",\"dateModified\":\"2026-01-23T07:33:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/sqidep-myth-hydraulics-and-treatment-flowrates\\\/\"},\"wordCount\":97,\"publisher\":{\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/#organization\"},\"articleSection\":[\"FAQ\",\"SQIDEP FAQ\"],\"inLanguage\":\"en-NZ\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/sqidep-myth-hydraulics-and-treatment-flowrates\\\/\",\"url\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/sqidep-myth-hydraulics-and-treatment-flowrates\\\/\",\"name\":\"SQIDEP Myth: Hydraulic & Treatment Flowrates\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/#website\"},\"datePublished\":\"2023-08-15T02:25:33+00:00\",\"dateModified\":\"2026-01-23T07:33:21+00:00\",\"description\":\"Clarifying the SQIDEP myth on hydraulic and treatment flowrates, explaining how flow measurements are used in assessing stormwater device performance and compliance.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/sqidep-myth-hydraulics-and-treatment-flowrates\\\/#breadcrumb\"},\"inLanguage\":\"en-NZ\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/sqidep-myth-hydraulics-and-treatment-flowrates\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/sqidep-myth-hydraulics-and-treatment-flowrates\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"SQIDEP Myth: Are Hydraulic &#038; Treatment Flowrates Part of the Assessment?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/#website\",\"url\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/\",\"name\":\"Atlan Stormwater New Zealand\",\"description\":\"Water quality improvement solutions\",\"publisher\":{\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-NZ\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/#organization\",\"name\":\"Atlan Stormwater New Zealand\",\"url\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-NZ\",\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/wp-content\\\/uploads\\\/sites\\\/3\\\/2025\\\/01\\\/Atlan-Stormwater-Logo-RGBBlue.png\",\"contentUrl\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/wp-content\\\/uploads\\\/sites\\\/3\\\/2025\\\/01\\\/Atlan-Stormwater-Logo-RGBBlue.png\",\"width\":3543,\"height\":1603,\"caption\":\"Atlan Stormwater New Zealand\"},\"image\":{\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/#\\\/schema\\\/person\\\/d90b282df636c4a0a32bd5b0b48d5216\",\"name\":\"creative@shellgraphix.com.au\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-NZ\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/a9edcb95de6ae87f616a84a66cdd62f9230fbca76f4d2197b16137abe10fbe43?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/a9edcb95de6ae87f616a84a66cdd62f9230fbca76f4d2197b16137abe10fbe43?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/a9edcb95de6ae87f616a84a66cdd62f9230fbca76f4d2197b16137abe10fbe43?s=96&d=mm&r=g\",\"caption\":\"creative@shellgraphix.com.au\"},\"sameAs\":[\"https:\\\/\\\/atlanstormwater.com\\\/nz\"],\"url\":\"https:\\\/\\\/atlanstormwater.com\\\/nz\\\/author\\\/creativeshellgraphix-com-au\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"SQIDEP Myth: Hydraulic & Treatment Flowrates","description":"Clarifying the SQIDEP myth on hydraulic and treatment flowrates, explaining how flow measurements are used in assessing stormwater device performance and compliance.","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:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/","og_locale":"en_US","og_type":"article","og_title":"SQIDEP Myth: Hydraulic & Treatment Flowrates","og_description":"Clarifying the SQIDEP myth on hydraulic and treatment flowrates, explaining how flow measurements are used in assessing stormwater device performance and compliance.","og_url":"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/","og_site_name":"Atlan Stormwater New Zealand","article_published_time":"2023-08-15T02:25:33+00:00","article_modified_time":"2026-01-23T07:33:21+00:00","author":"creative@shellgraphix.com.au","twitter_card":"summary_large_image","twitter_misc":{"Written by":"creative@shellgraphix.com.au","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/#article","isPartOf":{"@id":"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/"},"author":{"name":"creative@shellgraphix.com.au","@id":"https:\/\/atlanstormwater.com\/nz\/#\/schema\/person\/d90b282df636c4a0a32bd5b0b48d5216"},"headline":"SQIDEP Myth: Are Hydraulic &#038; Treatment Flowrates Part of the Assessment?","datePublished":"2023-08-15T02:25:33+00:00","dateModified":"2026-01-23T07:33:21+00:00","mainEntityOfPage":{"@id":"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/"},"wordCount":97,"publisher":{"@id":"https:\/\/atlanstormwater.com\/nz\/#organization"},"articleSection":["FAQ","SQIDEP FAQ"],"inLanguage":"en-NZ"},{"@type":"WebPage","@id":"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/","url":"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/","name":"SQIDEP Myth: Hydraulic & Treatment Flowrates","isPartOf":{"@id":"https:\/\/atlanstormwater.com\/nz\/#website"},"datePublished":"2023-08-15T02:25:33+00:00","dateModified":"2026-01-23T07:33:21+00:00","description":"Clarifying the SQIDEP myth on hydraulic and treatment flowrates, explaining how flow measurements are used in assessing stormwater device performance and compliance.","breadcrumb":{"@id":"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/#breadcrumb"},"inLanguage":"en-NZ","potentialAction":[{"@type":"ReadAction","target":["https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/atlanstormwater.com\/nz\/sqidep-myth-hydraulics-and-treatment-flowrates\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/atlanstormwater.com\/nz\/"},{"@type":"ListItem","position":2,"name":"SQIDEP Myth: Are Hydraulic &#038; Treatment Flowrates Part of the Assessment?"}]},{"@type":"WebSite","@id":"https:\/\/atlanstormwater.com\/nz\/#website","url":"https:\/\/atlanstormwater.com\/nz\/","name":"Atlan Stormwater New Zealand","description":"Water quality improvement solutions","publisher":{"@id":"https:\/\/atlanstormwater.com\/nz\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/atlanstormwater.com\/nz\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-NZ"},{"@type":"Organization","@id":"https:\/\/atlanstormwater.com\/nz\/#organization","name":"Atlan Stormwater New Zealand","url":"https:\/\/atlanstormwater.com\/nz\/","logo":{"@type":"ImageObject","inLanguage":"en-NZ","@id":"https:\/\/atlanstormwater.com\/nz\/#\/schema\/logo\/image\/","url":"https:\/\/atlanstormwater.com\/nz\/wp-content\/uploads\/sites\/3\/2025\/01\/Atlan-Stormwater-Logo-RGBBlue.png","contentUrl":"https:\/\/atlanstormwater.com\/nz\/wp-content\/uploads\/sites\/3\/2025\/01\/Atlan-Stormwater-Logo-RGBBlue.png","width":3543,"height":1603,"caption":"Atlan Stormwater New Zealand"},"image":{"@id":"https:\/\/atlanstormwater.com\/nz\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/atlanstormwater.com\/nz\/#\/schema\/person\/d90b282df636c4a0a32bd5b0b48d5216","name":"creative@shellgraphix.com.au","image":{"@type":"ImageObject","inLanguage":"en-NZ","@id":"https:\/\/secure.gravatar.com\/avatar\/a9edcb95de6ae87f616a84a66cdd62f9230fbca76f4d2197b16137abe10fbe43?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/a9edcb95de6ae87f616a84a66cdd62f9230fbca76f4d2197b16137abe10fbe43?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/a9edcb95de6ae87f616a84a66cdd62f9230fbca76f4d2197b16137abe10fbe43?s=96&d=mm&r=g","caption":"creative@shellgraphix.com.au"},"sameAs":["https:\/\/atlanstormwater.com\/nz"],"url":"https:\/\/atlanstormwater.com\/nz\/author\/creativeshellgraphix-com-au\/"}]}},"_links":{"self":[{"href":"https:\/\/atlanstormwater.com\/nz\/wp-json\/wp\/v2\/posts\/23469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/atlanstormwater.com\/nz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/atlanstormwater.com\/nz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/atlanstormwater.com\/nz\/wp-json\/wp\/v2\/users\/1028"}],"replies":[{"embeddable":true,"href":"https:\/\/atlanstormwater.com\/nz\/wp-json\/wp\/v2\/comments?post=23469"}],"version-history":[{"count":1,"href":"https:\/\/atlanstormwater.com\/nz\/wp-json\/wp\/v2\/posts\/23469\/revisions"}],"predecessor-version":[{"id":27258,"href":"https:\/\/atlanstormwater.com\/nz\/wp-json\/wp\/v2\/posts\/23469\/revisions\/27258"}],"wp:attachment":[{"href":"https:\/\/atlanstormwater.com\/nz\/wp-json\/wp\/v2\/media?parent=23469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/atlanstormwater.com\/nz\/wp-json\/wp\/v2\/categories?post=23469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/atlanstormwater.com\/nz\/wp-json\/wp\/v2\/tags?post=23469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}