Laserfiche WebLink
r r` <br /> r� <br /> The calculations for water were recalculated as a check, and the following estimates <br /> • resulted <br /> Water (capillary)-Contaminant Mass Estimated Remaining <br /> TPHG <br /> Area of 2,700 ft3 x ave soil density 100 lb/ft3 x 0 3 porosity x 0 000042 ppm = 3 4 lb <br /> 3 4— 6 8 lb/gal petroleum product= 0 5 9WIons TPHG <br /> Benzene <br /> Area of 2,700 ft3 x ave soil density 100 lb/ft3 x 0 3 porosity x 0 000003600 ppb = 0 29 <br /> lb <br /> 0 29=6 8 lb/gal petroleum product= 0 042 gallons Benzene <br /> MTBE <br /> Area of 2,700 ft3 x ave soil density 100 lb/ft3 x 0 3 porosity x 0 000000058 ppb = <br /> 0 0046 lb <br /> 0 0046— 6 8 lb/gal petroleum product = 0 0006 gallons MTBE <br /> Water -Contaminant Mass Estimated Removed <br /> TPHG <br /> C = 12,200 gal x 0 000042 ppm = 0 51 gallons TPHG <br /> Benzene <br /> C = 12,200 gal x 0 000003600 = 0 043 gallons Benzene <br /> • MTBE <br /> C = 12,200 gal x 0 000000058 = 0 0007 gallons MTBE <br /> These recalculated estimates show that higher quantities of contaminants were removed, <br /> and higher quantities of contaminants remain The calculations for water show that slightly <br /> higher quantities of dissolved contaminants remain While the calculated estimates have <br /> increased for soil, they are substantially the same for water in our opinion Wright regrets <br /> the calculation error and the reviewing agencies should substitute these recalculated <br /> numbers in our Site Closure Report dated December 12, 2000 <br /> If you have any questions, please call <br /> Sincerely, <br /> Wright Environmental Services, Inc <br /> Nye 1262CV - <br /> J n s <br /> s <br /> John Lynch Christopher M Palmer <br /> Principal CEG 1262 ` r- <br /> cc Ms Margaret Lagono, San Joaquin Public Health <br /> Mr Marry Hartzile, Regional Water Quality Control Board <br /> Page 2 <br />