Laserfiche WebLink
Frontier Transportation,Inc. <br /> 425 Larch Road <br /> Page 2 of 2 <br /> An additional approved modification to the work plan includes the use of two-inch <br /> diameter casings rather than the originally proposed four-inch diameter casings for each <br /> of the four proposed monitoring wells. This was agreed to during a telephone <br /> conversation between Vicki McCartney at EHD and Hiram Garcia at BEII on <br /> 29 December 2003. <br /> It appears that porosity was inadvertently omitted from the plume volume calculation <br /> submitted in Site Conceptual Model. EHD would like clarification concerning the <br /> calculation. <br /> Laboratory analytical results are still not being electronically submitted to GeoTracker— <br /> the State Water Resources Control Board database program. Water Code Section 13196, <br /> commonly referred to as AB 2886,requires this. Electronic transmission of laboratory <br /> analytical results to GeoTracker must be initiated immediately. <br /> Please analyze soil and groundwater samples collected in the fixture for tertiary butyl <br /> alcohol (TBA), di-isopropyl ether (DIPE), ethyl tertiary butyl ether (ETBE), tertiary amyl <br /> methyl ether (TAME), 1,2-dichloroethane (1,2-DCA), and 1,2-dibromoethane (EDB), in <br /> addition to the proposed analyses: total petroleum hydrocarbons as gasoline (TPHg), <br /> benzene, toluene, ethyl benzene, total xylenes (BTEX), and methyl tertiary-butyl ether <br /> (MTBE). 1,2-DCA should be reported at 0.5 micrograms per liter (µg/L), if possible, in <br /> future groundwater samples collected at this site. <br /> Please submit a drilling permit application for four monitoring wells with the $89.00 fee <br /> to EHD and notify EHD at least 72 hours prior to commencing the fieldwork. If you <br /> have any questions,please contact Vicki McCartney at(209)468-3456. <br /> Donna Heran,REHS,Director <br /> Environmental Health Department <br /> Vicki McCartney,EHS Nuel C.Henderson,Jr.,RG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> cc: David Blakely,BEII <br /> James L.L.Barton, CVRWQCB <br />