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r <br /> Fuel Consumption of RSI <br /> (S)pray (A)eration (V)acuum (E)xtracti.on <br /> S.A.V.E. Natural Lias i Propane <br /> December 26, 1990 - cont'd <br /> of energy is derived from the contamination, a proportionate amount of alternative <br /> fuel would be reduced accordingly. <br /> 2 Per Southern California Gas, natural gas is sold as follows: <br /> January through June (six months) : first 20 therms @ 0.3948 <br /> after 20 therms @ 0.7501 <br /> July through December (six months) : first 75 therms @ 0.3948 <br /> after 75 therms @ 0.7501 <br /> Calculations: <br /> Total therms used monthly 614.15 <br /> January - June: over 20 therms $ 445.69 <br /> first 20 therms $ 7.90 <br /> One month cost $ 453.59 <br /> Six months cost $2,721.52 <br /> July - December: over 75 therms S 404.43 <br /> r 1 first 7S therms S 29.61 <br /> One month cost S 434.04 <br /> Six month cost $2,604.26 <br /> One year cost $5,325.78 <br /> Average cost per therm $ 0.72 <br /> 3 Per Liquid Energy Corp. , propane is sold by the gallon. Price is dependent upon <br /> storage capacity available, quantity to be used, and location of project. The <br /> site used for this. summary is located in Long Beach, California, has a 500 gallon <br /> storage, and uses approximately 300 gallons or propane per month. Our current <br /> quoted price is 0.90 per gallon. <br />