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BOARD OF TRUSTEES <br />James culbenson, Pre$. <br />Patricia E. Vannuccl, Secy <br />Anlhonalle Van Spronaen <br />Earl Pimentel <br />Fern eugbae <br />Daniel L. Floras <br />John 0. Mast, M.D. <br />William J. Wads <br />Mary Anna Lova <br />Facility Name <br />Address <br />Date of <br />SAN 510AOUIN LOCAL HEALTH DISTRICT <br />I <br />1601 East Hazelton Avenue, P. O. Box 2009 <br />Stockton, California 95201 <br />209/466-6761 <br />Jopl Khanna, M.D., M.P.M., District Health 011lcer <br />A - <br />SERVING <br />City of Lodi <br />Sen Joaquin County <br />City of Escalon <br />City of Manteca <br />City of Ripon <br />City of Stockton <br />City of Tracy <br />San Joaquin County <br />San Joaquin County <br />MONITORING ALTERNATIVE N7 �-TA,4,) �-15 -" :3 a,,,J q <br />Limited to underclround storage tanks which have infrequent inputs and withdrawals and <br />where the ligtlit: level in the tank can be measured to an accuracy of +5 gallons or less <br />when the tank is half full. <br />This monitoring alternative shall include: <br />1,-�Annual precision test on tank and piping. <br />V --,Tank gauging performed as follows: <br />• —2—�Tank must be capable of being secured to prevent unauthorized inputs and <br />withdrawals. <br />_Tank must have no inputs or withdrawals for at least a 48 hour period <br />(2 days) 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 <br />monitoring period (lasting at least 48 hours). <br />(For example: level measured and recorded Friday night before <br />locking and again on Monday morning before opening.) <br />_1Z1f liquid level varies more than 1% of the tank volume or 5 gallons, which <br />ever is less, between measurements, an unauthorized release shall be <br />assumed to have occurred and shall be reported to the local agency within <br />24 hours, as per Article 5, Sect. 2652 of the regulations and further <br />evaluations shall be performed to verify or disprove the variations. <br />Implementation of the monitoring alternative requires that the following circled items be <br />completed by the dates specified. <br />�i Precision test(s) must be performed by n results submitted to this <br />office within 30 days of the test. <br />20 Tank gauging must be started immediately. (See instructions above). <br />If the above compliance dates cannot be met, contact this office prior to the specified <br />date. <br />4/86 UGT 3 <br />