A community has a current population of 2800. It is estimated that in 20 years its population will be 38,000. The saturation population is 80,000.the total water consumption at present has been estimated to be 4.0 million gallons perday. the treatment plant has a capacity of 9.3 million gallons per day. Determine how many years from now the consumption will reach its design capacity with current usage rates if the community has a declining growth rate.