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Bio-2020-

by Odessa Studos | Feb 13, 2026

Bio-2020-

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Craig Benson

International Erosion Control Association Board of Directors

"Dirt-Time TV's new erosion & sediment control educational program is a crowning achievement of one of the world's practice-based masters. Technically solid, imminently practical, and always entertaining, John McCullah's online BMP Toolbox is a must for your inbox."

Ghislain Losier

Senior Civil Engineer

"I just completed this online course and obtained the certificate without issue. The updates made in the last few days have made a big difference in the quality. Overall it cannot be overlooked that the quality of the content, cinematography, video editing, and audio are excellent. This is hands down the best online course I have come across to date on the subject. Just thought I would share this in light of the few glitches initially pointed out to the team."

Robin Tully

PE, QSD, - President, Tully Consulting Group

“John is very knowledgeable in this field and is considered an expert in erosion and sediment control. His enthusiasm and passion for finding the best erosion control solutions is evident which also made the class fun and exciting. It has been the best class for our inspectors and SWPPP writers.” … "We have attended the BMP Summit along with several of our employees and plan to have staff attend yearly. The hands on training is invaluable. It helps our staff get a better understanding of how BMPs should be installed for the best performance. You get to learn about the right types of erosion and sediment control for the application and then see, touch and even install some of them directly. It combines a classroom workshop with field training."

Graham Tait

Erosion Specialist, Calgary

"Congratulations, John, Kevin, and Team!
I love the content – it’s engaging, well laid out, and thorough! It really ‘hits the nail (or the wood stake) on the head’ for everything industry personnel need to know about ESC best practices. It is essential and informative training for beginners to experts alike! And I like that people will be able to refer back to the videos and supplementary materials such as drawings and notes once they have signed up. Superb work!”

Bob Shults

President, Verux, Inc.

“John McCullah and other presenters at the Summit covered a wide range of topics from seeding mixes to slope stabilization methods, stormwater and non-stormwater management, sediment and erosion control techniques, and much more. They transitioned smoothly from very informative lecture style presentations to the hands-on practical application in the field to explain the correct applications of the variety of BMPs covered in our discussions. John and his team challenged us to think outside of the box in the selection and application of BMPs in both traditional and unique scenarios that we can continue to apply in our work today."

Bryon Green

CPESS, Arizona

“I've had my CPSWQ cert, and QSD/QSP for almost 3.5 years now, and your video course is probably the best informational course on storm water management that I've seen.”

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DirtTime provides practical, real-world training and resources for engineers, contractors, and environmental professionals focused on sustainable erosion control and site stabilization.

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Bio-2020-

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Craig Benson

International Erosion Control Association Board of Directors

Ghislain Losier

Senior Civil Engineer

Robin Tully

PE, QSD, - President, Tully Consulting Group

Graham Tait

Erosion Specialist, Calgary

Bob Shults

President, Verux, Inc.

Bryon Green

CPESS, Arizona

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