BETTER BILLY BUNKER The Sustainable Bunker Method Why Bunkers Fail Washouts ▪ Sand’s pore capacity becomes full causing the sand to slide down the bunker’s face ▪ Results in contamination of sand and having to shovel sand back onto faces after rain events How It Works ▪ 2” gravel layer allows drainage throughout the entire bunker ▪ Drainage on the bunker face prevents washouts ▪ Sand stays in place resulting in no contamination and playable bunkers after rain events ▪ Prevents rock migration Durability ▪ Safe for use with mechanical bunker rakes ▪ Flexibility is key to longevity ▪ 10 Year Warranty Fastest Draining ▪ Drains at over 1800” per hour ▪ No chance for standing water ▪ Eliminates mid slope washouts Ease of Installation ▪ No heavy equipment needed for installation Regular Turf Equipment ▪ Easy Two Step process ▪ No covering ▪ No waiting ▪ Ready for sand the next day! Ways to Construct ▪ Full floor – clay, silt or loam soils Ways to Construct ▪ Recessed Drain lines – Fine sands on clay, silt or loam soils

Deeper sand depth over drain lines lowers perched water table Ways to Construct ▪ Open Bottom – Fine sands on a sandy soil base ▪ Bottom left open or covered in fabric ▪ All gravel bonded with polymer ▪ Perched water table lowered by eliminating gravel under sand ▪ BBB ends in termination strip or over drain tile End Results ▪ Tremendous maintenance savings End Results ▪ Playable bunkers after rain events A Few Courses Using BBB: ▪ Aronimink Club: 2018 BMW Championship / 2027 PGA Championship ▪ Baltusrol Golf Club: US Opens (7) / PGA Championships (2) ▪ (Black): 2002/2009 US Open / 2019 PGA Championship ▪ Congressional Country Club: US Open (3) / PGA Championship (1) ▪ Crooked Stick Golf Club: 1991 PGA 2012 / 2016 BMW Championship ▪ Gleneagles PGA Centenary Course: 2014 ▪ Hazeltine National: 2016 / 2028 Ryder Cup ▪ (East): 1934 / 1950 / 1971 / 1981 / 2013 US Open ▪ Oakland Hills CC: US Open (6) / PGA Championship (2) / Ryder Cup (1) ▪ Poppy Hills : Multiple PGA Tour events ▪ Robert Trent Jones Golf Club: Multiple President’s Cup ▪ Shoal Creek Golf & Country Club: 2018 US Women’s Open ▪ Southern Hills Country Club: Multiple US Opens / PGA Championships ▪ TPC Harding Park: 2015 Cadillac , 2020 PGA Championship ▪ TPC : PGA Tour Valero Open ▪ TPC Scottsdale: PGA Tour Waste Management Open ▪ Trump National Bedminster: 2017 US Women’s Open, 2022 PGA Championship ▪ : 1996/ 2000/ 2014 PGA Championship, ▪ : 1929/ 1959/ 1974/ 1984/ 2006 2020 US Open ▪ : 2004 / 2010 / 2015 PGA Championship, 2020 Ryder Cup

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