Spill Tackle passed CA Leach Test!!! The test calls for oil saturated absorbent to be placed in an aquarium with Fathead minnows and the minnows stay alive. Our minnows are still kicken!! We knew spill tackle prevented leaching on roadways and shoulders but didnt have proof that Spill Tackle locked in hydrocarbons when washed into storm drains... now we do. Go to www.spilltackle.com to see all our testing and certificatiosn or call us at 228-206-1449 with questions.