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Determining the Number of Tires- "Jas T' e Enforcement Page 1 of 2 <br /> Waste Tire <br /> Enforceinent <br /> Determining <br /> the Number <br /> of Tires <br /> ............................. <br /> The formulas and tables on this page are intended to assist the inspector in determining the approximate number <br /> of tires at a site. Numbers of whole tires are calculated by volume(in cubic yards). Numbers of altered tires (in <br /> passenger tire equivalents) can be calculated by volume or by weight. Before determining the number of waste <br /> tires, make sure you understand the definitions_of waste and..other tir..e..s. For inspection purposes, only waste <br /> tires are counted toward total number of tires allowed. <br /> >>Calculate by_Cubic_Yards <br /> >> Calculate_by_Weiaht <br /> Calculate by Cubic Yards <br /> Use the following formula based on the length, width, height in feet(obtained by measuring or estimating tire pile <br /> size) and convert to cubic yards of tires: <br /> [Length (feet)x Width (feet) x Height(feet)] _27 =Volume(in cubic yards) <br /> Once you have determined the cubic yards of a tire pile, multiply cubic yards by the tires per cubic yard (tires/cy) <br /> as listed in the conversion tables below for whole or altered tires. <br /> Whole Passenger/Light Truck Tires <br /> Storage Type Height of Tire Pile <br /> (Stored less than 15 years) (<10 feet) (10-15 feet) (>15 feet) <br /> Loose 10 tires/cy 12 tires/cy 14 tires/cy <br /> Barrel 12 tires/cy 14 tires/cy 16 tires/cy <br /> Laced 14 tires/cy 16 tires/cy 18 tires/cy <br /> (Stored 15 years or more) <br /> Loose 12 tires/cy 14 tires/cy 16 tires/cy <br /> Barrel 14 tires/cy 16 tires/cy 18 tires/cy <br /> Laced 16 tires/cy 18 tires/cy 20 tires/cy <br /> Whole Semi-Truck Tires <br /> Storage Type Height of Tire Pile <br /> (Stored less than 15 years) <br /> (<10 feet) (10-15 feet) (>15 feet) <br /> Loose 2.5 tires/cy 2.75 tires/cy 3.0 tires/cy <br /> Barrel 4.2 tires/cy 4.4 tires/cy 4.6 tires/cy <br /> Laced 4.1 tires/cy 4.3 tires/cy 4.5 tires/cy <br /> (Stored 15 years or more) <br /> Loose 3.0 tires/cy 3.5 tires/cy 4.0 tires/cy <br /> Barrel 4.4 tires/cy 4.6 tires/cy 4.8 tires/cy <br /> Laced 4.3 tires/cy 4.5 tires/cy 4.7 tires/cy <br /> Altered Tires <br /> Type Tires/CY Description - <br /> Sidewalls or treads 20 The photo below shows cut out sidewalls and treads. <br /> tires/cy <br /> ttp://www.ciwmb.ca.gov/Tires/Enforcement/Inspections/NumberTires.htm 5/14/200 <br /> 4.11 <br />