Laserfiche WebLink
, <br /> Mr Chuck Carmel <br /> December 6, 1993 <br /> Page 3 <br /> a GWES and operated periodically from 1956 to 1991 Additional modifications were made <br /> to improve the system in 1991, and it has been operated nearly continuously since June 1991 <br /> Operating Conditions This Quarter During the third quarter of 1993 the submersible pump <br /> was raised from 20 feet below groundwater surface to 10 feet below groundwater surface in <br /> order to capture petroleum hydrocarbons located within the upper portion of the aquifer The <br /> system operated 83 percent of time during the quarter <br /> During operation of the GWES in the third quarter of 1993, a total of 321,622 gallons has <br /> been extracted and discharged The total amount of BTEX and TPH in the extracted <br /> groundwater is shown in Table i The quantity of BTEX and TPH discharged to the sewer <br /> is well within the limits stated in the permit <br /> Please contact Mr Misner or Ms Premzic at (916) 444-0123 if you have any questions about <br /> this report <br /> Sincerely, <br /> BROWN AND CALDWELL <br /> r <br /> Steven Misner Sharon Premzic <br /> Project Manager California Registered Geologist #5296 <br /> SDM SHP mdt <br /> Enclosures <br /> cc Mr Brett L Hunter, Chevron <br /> Ms Mary Meays, San Joaquin County Health Department <br /> Ms Elizabeth Thayer,California Regional Water Quality Control Board, Central Valley <br /> it-'049M\745-TREMRTSURl)93QTR RPT <br /> Q%MFSL'oo <br />