Built by a practicing environmental engineer who passed on the first try with fewer than 80 hours of focused study.
Affordable, topic-specific study guides and flashcard decks — designed to complement your prep plan, not replace it.
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Most PE prep courses are built for completeness — 800 pages and $1,500+ covering everything, whether you need it or not.
The author of Confluence PE Prep passed the Environmental PE exam on his first try with fewer than 80 hours of focused study. These materials are built from that experience: targeted guides and flashcard decks that hit the content that actually matters on exam day.
Study what you need. Skip what you don't.
One topic per guide. No filler, no padding.
Built by someone who passed in under 80 hours.
Built to the April 2026 NCEES Environmental exam spec.
Topic-specific study guides, matching flashcard decks, and free resources to get you started.
Matt Bentley, PhD, PE is an environmental engineer and Technical Director at a water treatment chemical company in Colorado. He teaches in the environmental engineering program at CU Boulder and passed the Environmental PE exam in February 2026.
Confluence PE Prep materials are built from real-world practice — not just exam theory. The "Field Notes" sidebars in every guide contain the kind of practitioner knowledge that textbooks leave out.
These are the study materials he wished existed when he was preparing — built from the ones he made while studying.
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