February 2026 Technical Meeting

February 12, 2026
11:30 AM - 1:00 PM
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Renaissance Hotel - The Fig & The Judge
515 Madison St.
Seattle, WA 98104
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The Presentation Title : Rainwater harvesting and new type of water storage (FRP Panel Tank)
Presented by : Dave Stark, Rainwater Management System (RMS) and Harry Hasebe,  Mitsubishi Chemical America Inc. (MCA)

Rainwater Harvesting Systems
•    The Case for Capturing Rainwater in Seattle
•    Process for Capturing Rainwater - The Importance of Prefiltration
•    System Integration with Multiple Disciplines – The Importance of Tank Sizing
•    Storage Approaches and Considerations
•    Codes and Changes
•    Case Studies of Rainwater Harvesting

FRP Panel Tank
•    Installation location flexibility 
•    Site preparation is easy 
•    No confined space work 
•    Format Choices, Variety of plan layouts and vertical volume options
•    Installation process:  Simple assembly, Common tools, No heavy equipment requirement, No skilled labor costs
•    Full-range of accessory components:  inlets, outlets, drainage bases,  ladders, etc.
•    No Maintenance, Anti-algal and corrosion-resistant composition
•    Total installed cost savings

Dave Stark:RMS, Biography
Dave Stark is a Design and Sales Specialist for Rainwater Management Solutions.  Dave’s role at RMS includes integrating rainwater, stormwater and graywater harvesting techniques for residential, industrial and commercial applications. Dave has worked on interdisciplinary teams to design large scale rainwater harvesting systems at multiple scales.  Dave participated in the first ARCSA/ASPE standard 63 code committee and is currently on the ARCSA/ASPE standard 73 committee. Dave holds an M.S. in Water Resource Sciences from the University of Minnesota and prior to joining RMS owned and operated Stark Rainwater Harvesting where he designed and installed systems throughout the upper Midwest.     Dave currently oversees projects in the Columbia Hydronics territory in Seattle and the west coast.  

Harry Hasebe: MCA, Biography 
Harry Hasebe is native of Japan,  after 911, he naturalized to USA in 2001, working at Mitsubishi Chemical America in many different divisions and responsibilities mostly in Business Development and Product Management from 2008. He oversees Hishitank FRP Panel Tank product management from 2019. AWWA D121 Above Grand Panel Type Tank Standard Committee member from 2020 and D120-D121 voting member from 2024. 
Harry had graduated from University of Nebraska Medical Center as MS in Biomedical Science and holds Ph.D from the Ohio State University in viral infection. He is Doctor of Veterinary Medicine and practice license in Japan. 

Harry Hasebe with Mitsubishi Chemical Group

Meal Selections:

VEGAN COBB SALAD - Spring Mix, Cucumbers, Cherry Tomatoes, Crispy Garbanzo beans, Red Onions, Sweet Potato, Avocado, Pepitas, Shaved Cauliflower, Toasted Cumin Vinaigrette.

GARDEN FRESH RIGATONI (V) - Zucchini, yellow squash, red onion, garlic, mixed bell pepper, cherry tomato, spinach, basil.

QUESADILLAS - Cheddar jack, bell peppers, pickled onions, guacamole, salsa, sour cream, cilantro, Nacho Chips.

GRILLED CHICKEN SANDWICH - Arugula, Mama Lil’s, grilled squash, Basil aioli, Swiss, Mama Lil peppers served with Fries.

WAGYU BURGER - Cheddar, bacon, lettuce, tomato, onion, kosher pickle, special sauce, brioche bun served with Fries.

Parking: Validated at reduced rate of $17.00 in lobby for Renaissance Hotel Parking Garage

Tickets

$40.00 Member Registration (credit card)

$45.00 Non-Member Registration (credit card)