IDEM: Storm Water Permitting: Home

<!doctype html> <html class="no-js" lang="en" aria-label="Storm Water Permitting - Storm Water Permitting" data=" home "> <head> <title>IDEM: Storm Water Permitting: Home</title> <meta charset="utf-8"> <meta name="description" content="" /> <meta name="keywords" content="" /> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="dcterms.title" content="Storm Water Permitting"> <meta name="dcterms.creator" content="Storm Water Permitting"> <meta name="dcterms.created" content="2021-02-11T13:34:03-05:00"> <meta name="dcterms.modified" content="2024-06-03T10:09:58-04:00"> <meta name="dcterms.issued" content="2021-02-19T13:11:48-05:00"> <meta name="dcterms.format" content="HTML"> <meta name="dcterms.identifier" content="https://www.in.gov/idem/stormwater">   <meta name="assetType" content="site" /> <meta name="assetName" content="Storm Water Permitting" />  <meta itemprop="name" content="Home" /> <meta itemprop="description" content="" /> <meta itemprop="image" content="https://www.in.gov" /> <meta name="twitter:card" content="summary" /> <meta name="twitter:title" content="Home" /> <meta name="twitter:description" content="" /> <meta property="og:title" content="Home" /> <meta property="og:description" content="" /> <meta property="og:type" content="website" /> <meta property="og:url" content="https://www.in.gov/idem/stormwater/" /> <meta property="og:site_name" content="Storm Water Permitting" /> <meta property="article:published_time" content="2021-02-19T13:11:48-05:00" /> <meta property="article:modified_time" content="2024-06-03T10:09:58-04:00" /> <meta property="article:tag" content="" /> <link rel="shortcut icon" href="/global/images/favicon.ico" /> <link rel="preconnect" href="https://fonts.googleapis.com"> <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin> <link href="https://fonts.googleapis.com/css2?family=Kanit:ital,wght@0,300;0,400;0,600;0,700;1,300;1,400;1,600;1,700&family=Rethink+Sans:ital,wght@0,400..800;1,400..800&display=swap" rel="stylesheet"> <link type="text/css" rel="stylesheet" media="all" href="/global/css/font-awesome-6.7.1/css/all.min.css" /> <link type="text/css" rel="stylesheet" media="all" href="/global/css/agency-styles-2024.css" /> <script type="text/javascript" src="/global/javascript/jquery-3.5.1.js"></script>  <link href="/idem/includes/custom.css" rel="stylesheet"> <link href="/idem/includes/custom.css" rel="stylesheet"> <link href="/idem/stormwater/includes/custom.css" rel="stylesheet"> <link href="/idem/stormwater/includes/colors_2024.css" rel="stylesheet"> </head> <body id="home" class="beaches marketing show-horizontal-menu "> <header data-sticky-container class=""> <div data-sticky data-margin-top="0" data-sticky-on="small"> <div id="header_sliver" class="row expanded"> <div id="header_sliver_logo_container" class="container_ingovlogo columns"> <a id="header_sliver_logo_link" href="https://www.in.gov/" target="_blank"> <svg id="in-gov-logo-svg" class="in-gov-logo-svg" alrt="IN.gov Logo" data-name="IN.gov Logo" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 120 32.26" height="18" width="68"> <defs> <style> .ingov-logo { fill: #fff; 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The construction stormwater program is intended to reduce pollutants, principally sediment, which are a result of soil erosion and other activities associated with land-disturbing activities.</li><li style="margin-bottom: 1em;">An option for the general public to view projects with permit coverage under the CSGP is available on <a href="https://stormwater.idem.in.gov/nsite" rel="https://stormwater.idem.in.gov/nsite">nSITE Explorer</a>.</li><li style="margin-bottom: 1em;">Applications to obtain permit coverage is available online through the <a href="https://stormwater.idem.in.gov/ncore/external/home">IDEM Regulatory ePortal</a>. Under the new CSGP, online applications are required.</li><li style="margin-bottom: 1em;"><a href="/idem/stormwater/resources/stormwater-program-transition-to-master-general-permits">Stormwater Program Transition to Master General Permits</a></li></ul></li><li style="margin-bottom: 1em;"><strong><a href="/idem/stormwater/industrial-storm-water-permitting" rel="https://www.in.gov/idem/stormwater/2332.htm">Industrial Stormwater Permitting (327 IAC 15-6):</a></strong><ul><li style="margin-bottom: 1em;">IDEM administers a general permit program that targets stormwater run-off associated with industrial activities. Requirements of this rule apply to specific categorical industrial facilities, which are exposed to stormwater.</li></ul></li><li style="margin-bottom: 1em;"><strong><a href="/idem/stormwater/municipal-separate-storm-sewer-systems-ms4" rel="https://www.in.gov/idem/stormwater/2333.htm">Municipal Separate Storm Sewer Systems (MS4):</a></strong><ul><li style="margin-bottom: 1em;">IDEM administers a stormwater program that specifically targets local cities, towns, universities, colleges, correctional facilities, hospitals, conservancy districts, homeowner's associations and military bases located within urbanized areas, as defined by the U.S. Census Bureau. These designated entities' MS4s are required to develop a local stormwater program. Most MS4s in Indiana operate under a general MS4 permit, while several others, based on population, are issued individual permits.</li><li style="margin-bottom: 1em;"><a href="/idem/stormwater/resources/stormwater-program-transition-to-master-general-permits">Stormwater Program Transition to Master General Permits</a></li></ul></li></ul> </section> </article> </main> </div> <section class="agency-prefooter"> <div class="row expanded align-center">  <div class="columns small-12 medium-6 large-expand"> <div class="i-want-to-container"> <h3><span class="fa-regular fa-user"></span> I Want To</h3> <ul><li><a href="/idem/nps/pages/e303d/index.html" rel="http://www.in.gov/idem/nps/pages/e303d/index.html" style="padding: 0px 0px 0.5rem">Find out if my stream is healthy.</a></li><li><a href="/idem/nps/what-is-nonpoint-source-pollution/what-you-can-do-to-reduce-or-stop-nonpoint-source-pollution" rel="http://www.in.gov/idem/nps/2487.htm" style="padding: 0px 0px 0.5rem">Learn about how I can improve water quality.</a></li><li><a href="/idem/contact/file-a-complaint" rel="http://www.in.gov/idem/5274.htm" style="padding: 0px 0px 0.5rem">Report a water quality problem.</a></li><li><a href="/idem/nps/what-is-nonpoint-source-pollution/make-a-real-difference" rel="http://www.in.gov/idem/nps/3360.htm" style="padding: 0px 0px 0.5rem">Read a watershed success story.</a></li><li><a href="/idem/algae" rel="http://www.in.gov/idem/algae/" style="padding: 0px 0px 0.5rem">Learn more about blue-green algae.</a></li><li><a href="/idem/cleanwater/wastewater-permitting" rel="http://in.gov/idem/cleanwater/2339.htm" style="padding: 0px 0px 0.5rem">Find out information on water permits.</a></li><li><a href="/idem/wetlands" rel="http://wetlands.in.gov/" style="padding: 0px 0px 0.5rem">Learn about wetlands.</a></li><li><a href="/idem/health/household-hazardous-wastes" rel="https://www.in.gov/idem/health/2452.htm" style="padding: 0px 0px 0.5rem">Learn about household hazardous 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