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0 0 <br /> The letter additionally stated that an investigation of the property was currently underway. And a <br /> proposed remediation of waste, glass, soil and debris will include the removal and disposal of <br /> waste at a local landfill and a post closure land use plan for potential development of the property <br /> will be prepared for the "effected" land and provided to the LEA. <br /> Trench,,,, o Wronme _ 11, <br /> This file name for this document indicated it was a monitoring well location figure. The Legend on <br /> the figure does not refer to monitoring wells. One monitoring well (Well W-2) is shown to the east <br /> of the figure. <br /> too E. ILouir39O"" 0 . fre ` AERIE, <br /> This email indicates that trench logs need to be provided to indicate the thickness of cover, <br /> sample locations and [depth/location of the] waste/native contact. It was stated that the property <br /> line runs through the Peaker Power plant and Pilkington NA property- but that parcel is part of the <br /> disposal site prior to the Peaker Power Plant. The email stated that the objective is to define the <br /> extents of waste on both the Peaker and Pilkington NA properties. It was stated that the <br /> geophysical study should encompass the historical boundaries of the [waste] disposal area. <br /> Comment: The geophysical survey report was not available for review. <br /> Comments are only for information related to the planned soil vapor well construction in the area of the <br /> glass debris/dust wastes were disposed (glass waste disposal area) since comments are provided <br /> elsewhere in this document related to previously conducted work. This document is an addendum; <br /> however, the initial work plan was not available for review.The work plan stated the following: <br /> At the direction of the SJCO EHD LEA and CalRecycle the following is proposed. The scope of <br /> work includes advancement of soil probe borings for the installation of soil vapor points for the <br /> collection of soil-vapor samples, at the site where former glass debris and dust waste streams <br /> were managed or disposed and/or were surface water features appear to have been comingled <br /> with waste. Soil-vapor probes are proposed be l[ilnstalled within the burial zone of the glass <br /> waste. Depth of the probe will be determined based field drilling conditions and soil/waste <br /> recovery. AGE initially proposes one soil vapor point to detect any contaminates at the center of <br /> the waste handling area (Figure 2 and Figure 3 depict the location and design of the point). <br /> Additional soil-vapor points may be installed as need to evaluate any detections of VOC or <br /> gases from the waste or expand sampling locations. Comments: the wording first says soil vapor <br /> probes will be installed and later that only one soil vapor probe will be installed. Why is a soil <br /> vapor probe being proposed as opposed to a landfill gas well (LFG)? <br /> For collection of soil-vapor samples, a small diameter steel hand auger(three inch) will be used to <br /> establish a boring into the subsurface. The sampling point will be advanced to depths of <br /> approximately 5 feet bsg or within the base of the buried waste and then mico-perforated soil-vapor <br /> tip will be installed and%-inch disposable polyethylene tubing will be attached, which extends to the <br /> Ninyo&Moore 1 500 E.Louise Avenue,Lathrop,San Joaquin County,California 1 104690095 1 August 11,2017 33 <br />