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Revise/clarify the text. <br /> 26. Page 3-2, Section 3.1.0.4 <br /> State if there have been any San Joaquin County Health <br /> Department (SJCHD) permit violations for the UST currently <br /> in use. <br /> 27 . Page 3-2, Section 3.1.1.1 <br /> State the chemical components of No. 2 fuel oil, diesel fuel <br /> and lubrication oil. <br /> 28 . Page 3-10, Section 3.1.7.5.1.3 <br /> It is stated that only a single boring is planned for UST <br /> No. 27a "due to the likelihood that TCE detected in the <br /> excavation is from a source other than the UST. " State the <br /> basis of this conclusion. Explain which tank this is (the <br /> 250-gallon tank or the 4 , 000-gallon tank) . <br /> 29 . Pages 3-12 and 3-13, Section 3.2. 1. 1. 1 <br /> According to the U. S. Army Toxic and Hazardous Materials <br /> Agency (USATHAMA) report of 1980 (page 32) , some industrial <br /> wastes "may have gone into the sanitary or storm system. <br /> Before the second IWP was dug, there was a small overflow to <br /> the sewage effluent pond from the original IWP. " (The <br /> sanitary ponds are SWMU No. 2 , and the storm drainage lagoon <br /> is SWMU No. 4 . ) The present IWPs now occupy a portion of <br /> the original southernmost sewage pond. These statements, in <br /> addition to the detection of elevated levels of metals and <br /> some pesticides in downgradient wells LM3 and LM15, lead to <br /> a likely conclusion that either leakage into the soils has <br /> occurred in the past from these IWPs and/or from the <br /> attached IWPL (SWMU No. 33) and/or that leakage may be <br /> presently occurring. EPA believes that SWMU No. 3 needs to <br /> be given priority in the field investigations due to the <br /> potential risks to human health and the environment posed by <br /> many of these wastes. (See alsb General Comment No. 11. ) <br /> Propose appropriate investigative action. <br /> 30. Pages 3-14, 3-18 and 3-19, Sections 3 .2 . 1. 1.7 and 3.2 . 1.5. 4 <br /> The cyanides and sulfides, found in the solid and liquid <br /> samples of the IWP's can be expected to be in the soils <br /> also. Propose appropriate sampling. <br /> 31. Page 3-15, Section 3.2 . 1.2 .2 . <br /> In this section for SWMU No. 3 , the contact between the <br /> Shallow Unit and the Upper Horizon is identified as being <br /> located at a depth of approximately 27 feet below grade. In <br /> paragraph 3.2 . 1.2 .3, the text states that the water table in <br /> this area occurs at about 16 feet below grade and that the <br /> aquifer appears to occur under unconfined conditions. Is <br /> this shallow unit of Holocene Age? If the Upper Horizon is <br /> the uppermost water-bearing zone and is unconfined, then the <br /> I-12 <br />