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1386 EAST BEADIER STREET <br /> � J <br /> ��`OODLAND,CA 95776-6003 <br /> GE0-E i'G TE,ERS r� <br /> 668-5200 <br /> CA-LrF. Co'.-TP�CTG 4513F57 FAX 1530)652-:27.3 <br /> REGISTERED CE;LGG:yT'S <br /> R°e5e�}c::7_net <br /> Mr. Richard Stiffler May I5, 2005 <br /> Environmental Control Section, Department of Municipal Utilities <br /> City of Stockton <br /> 2500 Navy Drive <br /> Stockton, CA 95206-1191 <br /> (209) 937-8740 Fax (209) 937-8708 <br /> RE: April 2005 sewer discharge report for 1876 Country Club Blvd., Stockton, CA. <br /> Dear Mr. Stiffler: <br /> The following is the required monthly report documenting sewer discharge activities <br /> from 1876 County Club Blvd., Stockton, California. Prior to initiating discharge, a water <br /> sample was obtained of the treated water, stored in a drum on April 1, 2005. All sewer <br /> discharge requirements were nnet. Treated groundwater discharge to sewer commenced <br /> on April 8, 2005. Upon receipt of the April 29, 2005 analytical results the system was <br /> shut down due to the presence of TBA in the effluent stream at 7.1 ug/L. A total of <br /> 230,314 gallons of treated groundwater had been discharged to the sanitary sewer clean- <br /> out at the site. The number one carbon unit was removed from the system and to new <br /> carbon units were added (number 4 and number 5 positions). A sample of the effluent <br /> was obtained on May 12, 2005 with no further discharge to sewer. It is anticipated that <br /> continuous discharge will commence upon receipt of sample results showing that <br /> compliance with permit conditions has been met, see Table and Laboratory Reports <br /> attached to this report. <br /> During this time period the LEL sensor has been replaced. The initial sensor was <br /> sensitive to water vapor and showed high LEL responses (4-7%). Upon replacing the <br /> sensor, normal LEL readings have been achieved (1%). <br /> I certify under penalty of law that this document and all attachments were prepared under <br /> my direction or supervision in accordance with a system designed to assure that qualified <br /> personnel properly gather and evaluate the information submitted. Based on my inquiry <br /> of the person or persons who manage the system, or those persons directly responsible for <br /> gathering the information, the information submitted is to the best of my knowledge and <br /> belief, true, accurate, and complete. I am aware that there are significant penalties for <br /> submitting false information, including the possibility of fine and imprisonment for <br /> knowing v tions. <br /> George Converse, Vice President Operations date <br />