{"id":1027,"date":"2026-08-10T10:21:00","date_gmt":"2026-08-10T10:21:00","guid":{"rendered":"https:\/\/pressure.mobi\/blog\/?p=1027"},"modified":"2026-08-10T10:21:00","modified_gmt":"2026-08-10T10:21:00","slug":"storm-drain-rules-pressure-washing","status":"publish","type":"post","link":"https:\/\/pressure.mobi\/blog\/storm-drain-rules-pressure-washing\/","title":{"rendered":"Wash water, storm drains and what the rules actually say"},"content":{"rendered":"<p>The short version: storm drains lead to waterways, not treatment plants, and wash water carrying grease, oil or detergent generally may not enter them. It is the regulatory edge of <a href=\"\/commercial-pressure-washing\/\">commercial pressure washing services<\/a>, and the operator you hire should know it better than you need to.<\/p>\n<h2>Why storm drains are different<\/h2>\n<p>Sanitary sewers route to treatment; storm drains typically discharge to creeks and rivers untreated. That single fact drives everything: what goes down a storm drain arrives in the watershed as-is.<\/p>\n<p>The federal Clean Water Act framework prohibits non-stormwater discharges to storm systems, and municipalities implement it with local rules that vary in detail but agree on the principle. Clean rinse water off a residential driveway is rarely the concern; commercial wash water carrying contaminants is.<\/p>\n<h2>Where it bites in practice<\/h2>\n<p>Dumpster pads and grease-bearing surfaces are the classic case \u2014 that wash water needs managing, not sending to the gutter. Fuelling areas, oil-stained lots and industrial surfaces sit in the same category.<\/p>\n<p>Management options run from simple to involved: directing water to landscaped ground where it infiltrates, blocking the drain and collecting water for proper disposal, or reclaim equipment on bigger jobs. Which applies depends on the surface, the volume and the municipality.<\/p>\n<h2>What to expect from a professional<\/h2>\n<p>An operator quoting grease-surface work should ask where your site drains before they ask anything else, and their method statement should account for it. If a franchisor or property manager hands you documented requirements, a competent contractor quotes against them without complaint.<\/p>\n<p>The liability logic is simple: discharges trace back to the property. Hiring someone who handles water properly is cheaper than being the address on a violation.<\/p>\n<p><em>We walk the site and plan the water before we quote. Send us your requirements if you have them in writing.<\/em> <a href=\"\/commercial-pressure-washing\/\">Read more about commercial pressure washing services &rarr;<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The short version: storm drains lead to waterways, not treatment plants, and wash water carrying grease, oil or detergent generally may not enter them. It is the regulatory edge of commercial pressure washing services, and the operator you hire should know it better than you need to.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pagelayer_contact_templates":[],"_pagelayer_content":"","footnotes":""},"categories":[4],"tags":[],"class_list":["post-1027","post","type-post","status-publish","format-standard","hentry","category-commercial"],"_links":{"self":[{"href":"https:\/\/pressure.mobi\/blog\/wp-json\/wp\/v2\/posts\/1027","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressure.mobi\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pressure.mobi\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pressure.mobi\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pressure.mobi\/blog\/wp-json\/wp\/v2\/comments?post=1027"}],"version-history":[{"count":1,"href":"https:\/\/pressure.mobi\/blog\/wp-json\/wp\/v2\/posts\/1027\/revisions"}],"predecessor-version":[{"id":1084,"href":"https:\/\/pressure.mobi\/blog\/wp-json\/wp\/v2\/posts\/1027\/revisions\/1084"}],"wp:attachment":[{"href":"https:\/\/pressure.mobi\/blog\/wp-json\/wp\/v2\/media?parent=1027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pressure.mobi\/blog\/wp-json\/wp\/v2\/categories?post=1027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pressure.mobi\/blog\/wp-json\/wp\/v2\/tags?post=1027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}