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Waite Concrete Products, LLC <br /> Anti-buoyancy 1500 Gallon 2-Compartment Tank <br /> Minimum Cover-18" <br /> The following is a list of methods that may be used, as additional precautions, to <br /> insure tank submergence in area with high ground water. <br /> 1 . Require a minimum cover of 18" where there is high groundwater. <br /> 2. After setting the tank, pour an additional thickness of concrete over the tank <br /> top 3" minimum extending a minimum of 12" beyond the sides of the tank. <br /> 3. Concrete buoyancy blocks secured with stainless steel cables placed over <br /> tank. <br /> Calculations in feet: Tank: Cover: <br /> Length 10 10 <br /> Width 6.25 6.25 <br /> Height 5.50 1 .50 <br /> Volume 343.75 78.13 <br /> Water Weight (Ib) 21459 <br /> Tank Weight (Ib) 14900 <br /> Weight to Balance (lb) 6559 <br /> Weight to Cover (lb) 6584 <br /> Density: <br /> 62.43 Water (Ib/ft3) <br /> 1 .35 Soil Factor (typical bulk density) <br /> 84.28 Soil (Ib/ft3) <br /> 2.21 Concrete Factor <br /> STATE CERTIFIED <br /> 8.24 Concrete (Ib/ft3) Environmental Health Specialist <br /> </ Eg654O <br /> Robert Goodwin <br /> #03 <br />