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J. T. Smith <br />Division Engineer <br />SYS Edi <br />0111on PacdII Railroad <br />Missouri Pa dn: Railroad <br />April 23, 1985 <br />State of Cali ornia <br />California Re ional Water Quality Control Board <br />Central Valle Region <br />3201 S Street <br />Sacramento, C 95816-7090 <br />Attention: Mr� Phillip S. Isorena <br />APR 2 4 1985 <br />ENVIROF ENTAL HEALTH <br />F ERMIT/SERVICES <br />File: 353 FUEL <br />Wit reference to your visit of the Union Pacific Railroad Yard <br />at Stockton, alifornia on April 18, 1985, and your subsequent request <br />that we take ecessary measures to check for a possible leak on the <br />diesel fuel pipeline. <br />Onhe morning of April 19, 1985, we uncovered and exposed <br />approximately 125 feet of the pipeline extending through the saturated <br />area and appr ximately 25 feet in each direction beyond the saturation. <br />With the line still exposed, we put maximum pressure on the line and <br />maintained this pressure for a period of two hours. During this time <br />period we fou d one very small pin hole which dripped slowly under <br />maximum pressu e only. This was repaired by use of a full circle repair <br />clamp which to ally stopped the leakage. <br />The <br />watch on the a <br />leakage. <br />cc: <br />xcavation has now been backfilled and we will keep a close <br />ea in question to see if there is any further sign of <br />Mr. James Miller <br />San Joaqu n Co. <br />Local Hea th District <br />P. 0. Box 2009 <br />Stockton, CA 95201 <br />Sincerely, <br />D. D. GOODSELL <br />Water Service Supervisor <br />