{"id":6393,"date":"2025-05-26T15:56:07","date_gmt":"2025-05-26T05:56:07","guid":{"rendered":"https:\/\/idealgeotech.com.au\/test\/?p=6393"},"modified":"2025-05-26T15:56:36","modified_gmt":"2025-05-26T05:56:36","slug":"double-ring-infiltrometer-testing-accurate-reliable-infiltration-permeability-insights","status":"publish","type":"post","link":"https:\/\/idealgeotech.com.au\/test\/double-ring-infiltrometer-testing-accurate-reliable-infiltration-permeability-insights\/","title":{"rendered":"Double Ring Infiltrometer Testing: Accurate, Reliable Infiltration &#038; Permeability Insights"},"content":{"rendered":"<p data-start=\"393\" data-end=\"655\">\n<p data-start=\"393\" data-end=\"655\">When planning drainage infrastructure, onsite detention (OSD), or sustainable water solutions, the critical question isn\u2019t just <em data-start=\"521\" data-end=\"546\">where will the water go<\/em> \u2014 it\u2019s <em data-start=\"554\" data-end=\"593\">how fast will it soak into the ground<\/em>? That\u2019s where <strong data-start=\"608\" data-end=\"645\">Double Ring Infiltrometer Testing<\/strong> comes in.<\/p>\n<p data-start=\"657\" data-end=\"990\">At <strong data-start=\"660\" data-end=\"677\">Ideal Geotech<\/strong>, we deliver fast, precise, and council-compliant <strong data-start=\"727\" data-end=\"770\">Double Ring Infiltrometer (DRI) Testing<\/strong> across NSW, QLD, and the ACT. This advanced <strong data-start=\"815\" data-end=\"846\">infiltration testing method<\/strong> gives you trustworthy data on how your site handles water under saturated soil conditions \u2014 essential for effective stormwater and WSUD design.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Outline<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/idealgeotech.com.au\/test\/double-ring-infiltrometer-testing-accurate-reliable-infiltration-permeability-insights\/#1_What_Is_Double_Ring_Infiltrometer_Testing\" >1. What Is Double Ring Infiltrometer Testing?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/idealgeotech.com.au\/test\/double-ring-infiltrometer-testing-accurate-reliable-infiltration-permeability-insights\/#%F0%9F%93%8F_Key_Measurements_Include\" >\ud83d\udccf Key Measurements Include:<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/idealgeotech.com.au\/test\/double-ring-infiltrometer-testing-accurate-reliable-infiltration-permeability-insights\/#2_Why_Use_Double_Ring_Infiltrometer_Testing\" >2. Why Use Double Ring Infiltrometer Testing?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/idealgeotech.com.au\/test\/double-ring-infiltrometer-testing-accurate-reliable-infiltration-permeability-insights\/#3_How_Ideal_Geotech_Performs_DRI_Testing\" >3. How Ideal Geotech Performs DRI Testing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/idealgeotech.com.au\/test\/double-ring-infiltrometer-testing-accurate-reliable-infiltration-permeability-insights\/#4_When_Do_You_Need_Double_Ring_Infiltrometer_Testing\" >4. When Do You Need Double Ring Infiltrometer Testing?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/idealgeotech.com.au\/test\/double-ring-infiltrometer-testing-accurate-reliable-infiltration-permeability-insights\/#5_Why_Engineers_and_Builders_Choose_Ideal_Geotech\" >5. Why Engineers and Builders Choose Ideal Geotech<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/idealgeotech.com.au\/test\/double-ring-infiltrometer-testing-accurate-reliable-infiltration-permeability-insights\/#6_Book_Your_Double_Ring_Infiltration_Test_Today\" >6. Book Your Double Ring Infiltration Test Today<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h4 data-start=\"997\" data-end=\"1042\"><span class=\"ez-toc-section\" id=\"1_What_Is_Double_Ring_Infiltrometer_Testing\"><\/span>1. What Is Double Ring Infiltrometer Testing?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p data-start=\"1044\" data-end=\"1373\"><strong data-start=\"1044\" data-end=\"1081\">Double Ring Infiltrometer Testing<\/strong> is a field-based method for measuring the <strong data-start=\"1124\" data-end=\"1154\">vertical infiltration rate<\/strong> of water into soil. The test uses two concentric metal rings \u2014 an inner and outer ring \u2014 to control the movement of water and <strong data-start=\"1281\" data-end=\"1306\">minimise lateral flow<\/strong>, resulting in a more accurate representation of soil permeability.<\/p>\n<h3 data-start=\"1375\" data-end=\"1407\"><span class=\"ez-toc-section\" id=\"%F0%9F%93%8F_Key_Measurements_Include\"><\/span>\ud83d\udccf Key Measurements Include:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-start=\"1409\" data-end=\"1612\">\n<li data-start=\"1409\" data-end=\"1442\">\n<p data-start=\"1411\" data-end=\"1442\"><strong data-start=\"1411\" data-end=\"1432\">Infiltration rate<\/strong> (mm\/hr)<\/p>\n<\/li>\n<li data-start=\"1443\" data-end=\"1501\">\n<p data-start=\"1445\" data-end=\"1501\"><strong data-start=\"1445\" data-end=\"1466\">Soil permeability<\/strong> under saturated field conditions<\/p>\n<\/li>\n<li data-start=\"1502\" data-end=\"1612\">\n<p data-start=\"1504\" data-end=\"1612\"><strong data-start=\"1504\" data-end=\"1519\">Suitability<\/strong> for infiltration-based systems such as bioretention basins, rain gardens, or trench drains<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1614\" data-end=\"1790\">Due to its <strong data-start=\"1625\" data-end=\"1655\">accuracy and repeatability<\/strong>, the DRI method is often <strong data-start=\"1681\" data-end=\"1739\">required by councils, engineers, and water authorities<\/strong> for new developments and infrastructure approvals.<\/p>\n<h4 data-start=\"1797\" data-end=\"1842\"><span class=\"ez-toc-section\" id=\"2_Why_Use_Double_Ring_Infiltrometer_Testing\"><\/span>2. Why Use Double Ring Infiltrometer Testing?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p data-start=\"1844\" data-end=\"2044\">Compared to single-ring or constant head methods, <strong data-start=\"1894\" data-end=\"1917\">Double Ring Testing<\/strong> offers more reliable results \u2014 particularly in <strong data-start=\"1965\" data-end=\"1993\">clayey or variable soils<\/strong> where lateral water movement can distort readings.<\/p>\n<p data-start=\"2046\" data-end=\"2061\">It\u2019s ideal for:<\/p>\n<ul data-start=\"2063\" data-end=\"2318\">\n<li data-start=\"2063\" data-end=\"2113\">\n<p data-start=\"2065\" data-end=\"2113\">Projects involving <strong data-start=\"2084\" data-end=\"2111\">stormwater infiltration<\/strong><\/p>\n<\/li>\n<li data-start=\"2114\" data-end=\"2171\">\n<p data-start=\"2116\" data-end=\"2171\">Sites requiring <strong data-start=\"2132\" data-end=\"2169\">in-situ permeability verification<\/strong><\/p>\n<\/li>\n<li data-start=\"2172\" data-end=\"2226\">\n<p data-start=\"2174\" data-end=\"2226\"><strong data-start=\"2174\" data-end=\"2213\">WSUD (Water Sensitive Urban Design)<\/strong> strategies<\/p>\n<\/li>\n<li data-start=\"2227\" data-end=\"2318\">\n<p data-start=\"2229\" data-end=\"2318\">Complex or <strong data-start=\"2240\" data-end=\"2271\">heterogeneous soil profiles<\/strong> where accurate infiltration data is critical<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2320\" data-end=\"2456\">With councils increasingly mandating DRI testing for development approval, using this method helps you stay <strong data-start=\"2428\" data-end=\"2455\">compliant and confident<\/strong>.<\/p>\n<h4 data-start=\"2463\" data-end=\"2504\"><span class=\"ez-toc-section\" id=\"3_How_Ideal_Geotech_Performs_DRI_Testing\"><\/span>3. How Ideal Geotech Performs DRI Testing<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p data-start=\"2506\" data-end=\"2611\">We follow a <strong data-start=\"2518\" data-end=\"2550\">standards-compliant protocol<\/strong> designed for accuracy, consistency, and regulatory approval:<\/p>\n<p data-start=\"2613\" data-end=\"2638\">\u2705 Site Preparation<\/p>\n<p data-start=\"2640\" data-end=\"2765\">Our engineers identify representative test locations based on <strong data-start=\"2702\" data-end=\"2717\">site layout<\/strong>, <strong data-start=\"2719\" data-end=\"2733\">topography<\/strong>, and <strong data-start=\"2739\" data-end=\"2764\">development footprint<\/strong>.<\/p>\n<p data-start=\"2767\" data-end=\"2793\">\u2705Ring Installation<\/p>\n<ul data-start=\"2795\" data-end=\"3000\">\n<li data-start=\"2795\" data-end=\"2887\">\n<p data-start=\"2797\" data-end=\"2887\">Inner ring (typically 150mm) and outer ring (typically 300mm) are embedded into the soil<\/p>\n<\/li>\n<li data-start=\"2888\" data-end=\"3000\">\n<p data-start=\"2890\" data-end=\"3000\">Water is introduced to <strong data-start=\"2913\" data-end=\"2942\">both rings simultaneously<\/strong> to establish saturation and reduce lateral flow effects<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3002\" data-end=\"3025\">\u2705 Timed Readings<\/p>\n<ul data-start=\"3027\" data-end=\"3203\">\n<li data-start=\"3027\" data-end=\"3122\">\n<p data-start=\"3029\" data-end=\"3122\">Infiltration rates are calculated by monitoring <strong data-start=\"3077\" data-end=\"3098\">water level drops<\/strong> at set time intervals<\/p>\n<\/li>\n<li data-start=\"3123\" data-end=\"3203\">\n<p data-start=\"3125\" data-end=\"3203\">Steady-state flow is used to determine the <strong data-start=\"3168\" data-end=\"3203\">true vertical infiltration rate<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3205\" data-end=\"3234\">\u2705 Analysis &amp; Reporting<\/p>\n<ul data-start=\"3236\" data-end=\"3438\">\n<li data-start=\"3236\" data-end=\"3327\">\n<p data-start=\"3238\" data-end=\"3327\">Results are adjusted for <strong data-start=\"3263\" data-end=\"3276\">soil type<\/strong>, <strong data-start=\"3278\" data-end=\"3299\">groundwater depth<\/strong>, and <strong data-start=\"3305\" data-end=\"3325\">moisture content<\/strong><\/p>\n<\/li>\n<li data-start=\"3328\" data-end=\"3438\">\n<p data-start=\"3330\" data-end=\"3438\">A council-ready report is prepared with clear explanations, <strong data-start=\"3390\" data-end=\"3407\">design values<\/strong>, and <strong data-start=\"3413\" data-end=\"3438\">compliance references<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3440\" data-end=\"3524\">Most reports are delivered within 5<strong data-start=\"3474\" data-end=\"3495\">\u20137 business days<\/strong>, depending on project scale.<\/p>\n<h4 data-start=\"3531\" data-end=\"3585\"><span class=\"ez-toc-section\" id=\"4_When_Do_You_Need_Double_Ring_Infiltrometer_Testing\"><\/span>4. When Do You Need Double Ring Infiltrometer Testing?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p data-start=\"3587\" data-end=\"3629\">You\u2019ll typically need <strong data-start=\"3609\" data-end=\"3624\">DRI testing<\/strong> for:<\/p>\n<ul data-start=\"3631\" data-end=\"3980\">\n<li data-start=\"3631\" data-end=\"3722\">\n<p data-start=\"3633\" data-end=\"3722\"><strong data-start=\"3633\" data-end=\"3666\">Development Applications (DA)<\/strong> involving <strong data-start=\"3677\" data-end=\"3701\">stormwater discharge<\/strong> or <strong data-start=\"3705\" data-end=\"3720\">OSD systems<\/strong><\/p>\n<\/li>\n<li data-start=\"3723\" data-end=\"3806\">\n<p data-start=\"3725\" data-end=\"3806\">Designing <strong data-start=\"3735\" data-end=\"3758\">bioretention basins<\/strong>, <strong data-start=\"3760\" data-end=\"3774\">soak wells<\/strong>, or <strong data-start=\"3779\" data-end=\"3804\">infiltration trenches<\/strong><\/p>\n<\/li>\n<li data-start=\"3807\" data-end=\"3891\">\n<p data-start=\"3809\" data-end=\"3891\">Demonstrating compliance with <strong data-start=\"3839\" data-end=\"3889\">council stormwater or erosion control policies<\/strong><\/p>\n<\/li>\n<li data-start=\"3892\" data-end=\"3980\">\n<p data-start=\"3894\" data-end=\"3980\">Projects involving <strong data-start=\"3913\" data-end=\"3925\">rezoning<\/strong>, <strong data-start=\"3927\" data-end=\"3942\">subdivision<\/strong>, or <strong data-start=\"3947\" data-end=\"3980\">major infrastructure planning<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3982\" data-end=\"4110\">If your project involves managing runoff or integrating sustainable drainage solutions, <strong data-start=\"4070\" data-end=\"4109\">DRI testing is often non-negotiable<\/strong>.<\/p>\n<h4 data-start=\"4117\" data-end=\"4167\"><span class=\"ez-toc-section\" id=\"5_Why_Engineers_and_Builders_Choose_Ideal_Geotech\"><\/span>5. Why Engineers and Builders Choose Ideal Geotech<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p data-start=\"4169\" data-end=\"4567\">\u2714\ufe0f <strong data-start=\"4172\" data-end=\"4192\">Quick turnaround<\/strong> \u2013 Reports delivered in as little as 3\u20137 business days<br data-start=\"4246\" data-end=\"4249\" \/>\u2714\ufe0f <strong data-start=\"4252\" data-end=\"4275\">Trusted methodology<\/strong> \u2013 Widely accepted by councils, engineers, and certifiers<br data-start=\"4332\" data-end=\"4335\" \/>\u2714\ufe0f <strong data-start=\"4338\" data-end=\"4370\">Accurate, repeatable results<\/strong> for confident decision-making<br data-start=\"4400\" data-end=\"4403\" \/>\u2714\ufe0f <strong data-start=\"4406\" data-end=\"4425\">Fully compliant<\/strong> with Australian Standards and local stormwater guidelines<br data-start=\"4483\" data-end=\"4486\" \/>\u2714\ufe0f <strong data-start=\"4489\" data-end=\"4512\">Clear documentation<\/strong> \u2013 Council-friendly language and actionable design data<\/p>\n<p data-start=\"4569\" data-end=\"4674\">We don&#8217;t just provide numbers \u2014 we deliver insight, clarity, and compliance for your stormwater strategy.<\/p>\n<h4 data-start=\"4681\" data-end=\"4729\"><span class=\"ez-toc-section\" id=\"6_Book_Your_Double_Ring_Infiltration_Test_Today\"><\/span>6. Book Your Double Ring Infiltration Test Today<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p data-start=\"4731\" data-end=\"4875\">Need to meet <strong data-start=\"4744\" data-end=\"4768\">council requirements<\/strong>, size your <strong data-start=\"4780\" data-end=\"4794\">OSD system<\/strong>, or support your <strong data-start=\"4812\" data-end=\"4842\">stormwater management plan<\/strong> with reliable permeability data?<\/p>\n<p data-start=\"4877\" data-end=\"5024\">\ud83d\udcde <strong data-start=\"4880\" data-end=\"4895\">Call us now<\/strong> \u2014 <strong data-start=\"4900\" data-end=\"4908\">NSW:<\/strong> (02) 9725 5522 | <strong data-start=\"4926\" data-end=\"4934\">QLD:<\/strong> (07) 5537 8167<br data-start=\"4949\" data-end=\"4952\" \/>\ud83d\udce7 Or <a class=\"\" href=\"https:\/\/idealgeotech.com.au\/test\/contact\/\" target=\"_new\" rel=\"noopener\" data-start=\"4958\" data-end=\"5024\">submit your testing request online<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When planning drainage infrastructure, onsite detention (OSD), or sustainable water solutions, the critical question isn\u2019t just where will the water go \u2014 it\u2019s how fast<\/p>\n","protected":false},"author":115,"featured_media":6394,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6393","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-insight"],"acf":[],"_links":{"self":[{"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/posts\/6393","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/users\/115"}],"replies":[{"embeddable":true,"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/comments?post=6393"}],"version-history":[{"count":2,"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/posts\/6393\/revisions"}],"predecessor-version":[{"id":6396,"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/posts\/6393\/revisions\/6396"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/media\/6394"}],"wp:attachment":[{"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/media?parent=6393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/categories?post=6393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idealgeotech.com.au\/test\/wp-json\/wp\/v2\/tags?post=6393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}