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S. Page 1-16, Section 1.4.2.7.1 <br /> The sentence should read "A risk assessment will be required <br /> to evaluate the potential threat to human health and the <br /> environment should a no action scenario exist. " <br /> 5. Page 1-16, Section 1.4.2.7.2 <br /> The sentence should read "In case . . . pose a threat to human <br /> health and the environment . . . cleanup levels for the <br /> Chemicals of Concern. " <br /> 6. Page 2-1, Section 2. 1.1.2 <br /> Give a percentage as to which areas are unpaved. . State what <br /> percentage of the unpaved area is covered with gravel. <br /> State if it has been documented that there has been no <br /> contamination released to the air in the unpaved areas <br /> covered with gravel (since gravel does not constitute a <br /> seal) . <br /> 7 . Page 2-2, Section 2. 1.2 .2 . 1 <br /> The text states that previous investigations at the DDRW- <br /> Tracy have focused on the upper 200 feet, "primarily because <br /> site-related contaminants are not thought to have penetrated <br /> to greater depths. " There has been no data produced which <br /> can support this assumption. Revise this statement. <br /> 8 . Page 2-7, Section 2 .1. 3.2 <br /> DDRW-Tracy begins this section (2 . 1.3.2 . 1) by stating that <br /> the "relevant hydrogeology of the depot concerns the <br /> groundwater in the Upper Tulare Zone. " Once again there is <br /> no data to support the assumption that the Lower Tulare has <br /> not been impacted. Possible pathways for migration to the <br /> Lower Tulare exist in the onsite water wells and off-site <br /> agricultural and domestic wells, several of which are <br /> perforated in both the Upper and Lower Tulare. <br /> Investigation of the possible impact of the Lower Tulare has <br /> not been done. Revise this text. <br /> 9 . Page 2-11, Section 2 . 1.4. 1 <br /> The solvents stored in drums are heated by the sun. Explain <br /> if they potentially release contaminants into the air. <br /> 10 . Page 2-11, Section 2 . 1.5. 1 <br /> State if the San Joaquin River or any of its tributaries are <br /> used for recreational activities and if this is a potential <br /> exposure pathway. <br /> This section describes the surface water runoff system on <br /> the depot. Surface runoff is collected in an unlined storm <br /> drain holding pond. If capacity is exceeded, then the <br /> excess is pumped to a local drainage ditch draining into the <br /> San Joaquin River. The surface runoff in route to this <br /> unlined holding area and drainage ditch flows over surfaces <br /> I-9 <br />