According to Cypher Environmental, EarthZyme and Dust Stop products have been very successful in pilot operation at a major coal mine in Colombia. Mining nearly 2 million mtpy of coal with a sterile ratio of 6 to 1, this mine mobilizes approximately 15 million m3/y using Caterpillar 793 and 777 trucks on double truck lanes, normally creating a large amount of hazardous dust. These trucks have traveled on the EarthZyme road for approximately 22 hours a day, with the 793s maintaining a five-minute frequency and the 777s cycling 1.3 times per five minute period. So effective was the product that any dust evident during haulage came from the material in the trucks. Which is where Dust Stop comes in: a coating with this product prevents dispersion of hazardous particulate matter from these loads. The stability of the new surface can dramatically reduce maintenance costs as well as make huge savings in lost man hours.