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t <br />sontio OF TRUSTEES SAN JOAQUIN LOCAL HEALTH DISTRICT SERVING <br />,James Culbertson. Pres. City of Lodi' <br />Patrkla E. Vannuccl. Secy. '601 East Hazelton Avenue, P. ®. Box 2009 San Joaquin County <br />Anthonetts Van Spronsen City of Eacalon <br />Earl Pimental Stockton, California 95201 City of Manteca <br />Fern Bu®bee 209/466-6781 City of Ripon <br />Daniel L. Flores City of Stockton <br />John O. Mast. M.D. City of Tracy <br />William J. Wads Jo®l Khanna. M.O.. M.P.M.. District Health Officer San Joaquin County <br />Mary Anna Love San Joaquin County <br />1 <br />Facility Name <br />Address <br />l <br />Date of Inspection p / ��' _;k 7 Inspector A.11 . r <br />Tanks )# <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 />r <br />Tank gauging performed as follows: <br />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 time- <br />per week. <br />v --Tank 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 />—411'iquid level measurements are taken at the beginning and end of the monitoring <br />periods ( 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 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 shat <br />be performed to verify or disprove the variations. <br />