As California’s Construction General Permit (CGP) continues to reshape stormwater compliance, professionals across the state are navigating new requirements that directly affect project planning, monitoring, and discharge management. If you work in SWPPP development, site inspections, or stormwater program oversight, staying ahead of these changes isn’t optional — it’s essential.
On Wednesday, August 12, 2026, the Western Chapter of IECA is hosting a timely and highly practical webinar designed to help practitioners understand and apply the latest CGP requirements related to Qualified Precipitation Events (QPEs), dewatering, and passive treatment systems.
Why This Topic Matters Now
The fully implemented 2022 CGP introduces significant updates that impact day‑to‑day field decisions, including:
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How and when dewatering systems must be used
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What qualifies as a QPE — and how to track it
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When passive treatment is allowed to meet NAL requirements
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How weather thresholds influence monitoring and discharge actions
These aren’t theoretical changes. They affect real projects, real timelines, and real compliance outcomes. This webinar gives you the clarity and confidence to apply these rules correctly.
What You’ll Learn
Attendees will walk away with actionable guidance, including how to:
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Track storm forecasts to determine whether a QPE exists — and what actions must follow
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Identify when CGP dewatering requirements apply versus when other discharge permits take precedence
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Understand the criteria for using passive treatment systems under the CGP
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Adapt stormwater management strategies to meet updated regulatory expectations
This session is ideal for intermediate‑level practitioners, SWPPP Developers, QSPs/QSDs, municipal staff, and consultants who need a clear, practical breakdown of the new requirements.
Meet the Presenters
This webinar brings together two respected experts in the field:
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Matthew Renaud, Stormwater Regional Technical Consultant, Terracon
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Melanie Sotello, Director of Environmental Services, CASC Engineering and Consulting
Their combined experience offers both regulatory insight and real‑world application — exactly what stormwater professionals need to navigate the CGP effectively.
Event Details
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Date: Wednesday, August 12, 2026
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Time: 11:45 AM – 1:00 PM PDT
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Format: Live Webinar. Can't attend at that time? Purchase now and watch on demand at your convenience after the event.
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PDH Credits: 1
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Hosted by: IECA Western Chapter
How to Join
Register through IECA’s education portal and watch your email for the link to join the live session: https://ehub.ieca.org/products/understanding-qpe-forecasts-dewatering-and-passive-treatment-under-the-2022-gcp