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BOARD OF TRUSTEES <br />Jamas Culbertson. Prea. <br />Patricia E. Vannucci, Secy <br />Anlhonette Van Spronsen <br />Earl Plmentel <br />Fern Bupbea <br />Daniel L. Flores <br />John D. Most. M.D. <br />William J. Wade <br />Mary Anna Love <br />00 <br />41 <br />SAN JOAQUIN LOCAL HEALTH DISTRICT SERVING <br />City of Lodl <br />1601 East Hazelton Avenue, P. 0. Box 2009 San Joaquin County <br />Stockton, California 95201 City -of Escaton <br />City of Manteca <br />209/466-6781 City of Ripon <br />City of Stockton <br />Jafll Khanna. M.D., M.P.H.. Dlatrtct Health officer City of Tracy <br />San Joaquin County <br />San Joaquin County <br />Facility Name I, f---- /'(,, - r <br />Address <br />y <br />Date of Inspection Inspector <br />Tank (s)# , <br />MONITORING ALTERNATIVE #8: Tank Gauging <br />_,,' ualifying status: Governmental agency <br />Small business <br />—_,Written contract for removal or replacement <br />Limited to underground storage tanks where the liquid level in the tank can be measured <br />to an accuracy of 1% of the tank volume or 50 gallons, whichever is less, when the tank <br />is half full. <br />This monitoring alternative shall include: <br />,,. Annual precision testing on tank(s) and piping. <br />--Tank gauging performed as follows: <br />r Tank must be capable of being secured to prevent unauthorized inputs and <br />withdrawals. <br />Tank must have no inputs or withdrawals for a period of 12 hours three times <br />. per week. <br />�Zank must have no inputs or withdrawals for at least a 48 hour period (2 days) <br />at the end of consecutive periods lasting up to 7 days. <br />(For example: Tank in use Monday through Friday, then locked <br />over weekend). <br />Liquid level measurements are taken at the beginning and end of the monitoring <br />periods (12 hours or 48 hours). <br />(For example: Level measured and recorded Friday night before locking <br />and again on Monday morning before opening.) <br />'If liquid level varies more than <br />1% of the tank volume or 50 gallons, which <br />ever is less, between measurements, an unauthorized release shall be assumed <br />to have occurred and shall be reported to the local agency within 24 hours, <br />as per Article 5 Sect. 2652 of the Regulations, and further evaluations shall <br />be performed to verify or disprove the variations. <br />