Don’t Let Compliance Monsters Catch You: Get BMPs in Place by October 1st

15.09.25 02:12 PM

As summer fades and the rainy season creeps in, October 1st marks more than just the start of spooky season, it’s the official kickoff for stormwater compliance in California. Facilities subject to the Industrial General Permit (IGP) need to be ready for the first storm, because compliance isn’t optional, and one dirty sample can haunt your entire reporting year.

Why October 1st Matters

Rain season runs October through May, and regulators don’t wait for you to catch up. By October 1st, every facility should have their BMPs in place before the first rain hits. Once that first storm comes, you’re required to collect stormwater samples, and the results will determine your compliance path for the rest of the year.


A failed first sample can escalate your site to Level 1 or even Level 2 status, creating costly monitoring and corrective action requirements. That’s why October prep is so critical! Your first sample sets the tone for the entire season.

Don’t Let a Dirty Sample Haunt You

BMPs are your frontline defense against exceedances. Whether you’re new to the IGP or a seasoned pro, the checklist is the same:

  • Wattles & Socks: Keep sediment and debris where they belong ... out of storm drains.

  • Drain Filters: Capture pollutants before they flow off-site.

  • Media Socks & Flocculants: Target metals, oils, and fine particulates.

  • Good Housekeeping: Simple steps like sweeping, covering stockpiles, and maintaining equipment reduce risks before stormwater even forms.


When BMPs are in place and functioning before the first rain, you’re protecting your facility from compliance nightmares, and saving money by avoiding costly notices of violation or extra monitoring requirements.

Stock Up Before the Storm Hits

Like Halloween candy, BMPs are best purchased before the rush. Facilities that wait until the rain is falling often find themselves scrambling for last-minute supplies or paying more to expedite shipping. Planning ahead ensures your site is protected and your budget doesn’t get soaked.


To make it easier, Frog offers bulk discounts on BMP essentials.Which means the more you buy, the more you save! Stocking up now means you’ll have what you need for the entire season, without the stress of emergency orders.

The Bottom Line

October 1st isn’t just another date on the calendar, it’s the start of compliance season. The first storm is coming, and the only real trick is being unprepared. With the right BMPs in place, you can treat yourself to clean samples, smooth reporting, and peace of mind all season long.


Prepare your site now, because compliance monsters are much scarier than storm clouds.

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