The basis of the fuel surcharge is the Department of Energy price index for California U.S. On-Highway Diesel Fuel Prices and can be found at: Fuel Surcharge Rates We at Westside Materials appreciate you business and understand that high fuel costs effect your business in many negative ways. We have avoided passing these increased costs onto you, our customer, but at these new record highs we are unable to absorb these costs any longer. We appreciate your understanding of this matter and stand ready to assist you on your project in any way we can. Sincerely Yours, Herb Burton Vice President – General Manager Your One Stop Concrete Building Supply Shop Find a Location Near You