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Mr. Anthony Saara <br /> Page 2 <br /> April 14, 1988 <br /> Why will it take thirty days for the field investigation when you <br /> anticipate 3 to 4 days in the field? <br /> 3 . Figures 2 and 5. Site maps must be accurate, with dimensions <br /> and a scale. <br /> 4 . Page 3 , section 2 . 1. 1 . What were the amounts of sulfuric <br /> acid and zinc that were released in the two leakage events? How <br /> were materials brought on site? If stored on-site before use, <br /> where and how. <br /> 5 . Page 5, section 2 . 1. 2 . Include in reports or submit before <br /> completing reports; the raw data, including, but not limited to, <br /> well and boring logs, and laboratory analysis data. <br /> Is the well log mentioned the only one available for the area? <br /> Include a copy of the Spring 1987 water well elevation contour <br /> map mentioned in the Workplan. <br /> 6 . Page 6, section 2 . 1. 3 . There is a private residence at one <br /> corner of the block that the site is on that is not mentioned. <br /> Environmentally sensitive receptors could include, but not be <br /> limited to, the people that live adjacent to the site. The <br /> potential migration pathways should be identified at this point, <br /> such as the location and configuration of storm drainage systems <br /> and most likely surface runoff pathways. <br /> 7 . Page 9 , Section 2 . 2 . We require that blind duplicates of <br /> soil and water samples be taken for at least (not approximately) <br /> 5% of samples taken or one per daily batch, which ever is <br /> greater. We will require one composite sample equipment blank <br /> for each sampling day. <br /> 8 . Page 10, section 2 . 2 . 1. It is unclear whether consideration <br /> has been given to the size of the drill rig that is to be used. <br /> Because drilling problems have been encountered at the site in <br /> the past, we hope that the drill rig used will be adequate for <br /> the job so that time will not be wasted scheduling a larger rig <br /> to complete the borings. <br /> What length of soil sampler will be used? <br /> 9 . Page 10 ; section 2 . 2 . 1 (a) , last paragraph. I am unable to <br /> understand this paragraph, be more specific. I was not able to <br /> find an example of a boring log form in Attachment C. <br /> 10. Page 11, section 2 . 2 . 1 (a) and page 14 . section 2 . 2 . 1 (b) , <br /> Include date, time, preservative indication, analysis required, <br /> and use some type of closure seal as proof that the containers <br /> were not opened before arriving at the laboratory. <br />