Laserfiche WebLink
LK DER <br /> property <br /> BrI9M Feop4.PI9ht SoluWiu <br /> property that reportedly does not receive process wastewater. Sample locations B-5 <br /> ' and B-6 were advanced in the vicinity of the North-Louise Avenue Area. Background <br /> sample B-5 was chosen in an area outside of the Louise Avenue Infiltration Area (east <br /> t side), which reportedly does not receive process wastewater. B-6 was advanced within <br /> the application area on the west side. Borings B-7 and B-8 were advanced in the vicinity <br /> of the South-Louise Avenue Area. Background location B-7 was located outside of the <br /> Louise Avenue Infiltration Area (east side), which reportedly does not receive process <br /> wastewater. B-8 was advanced within the application area on the west side. The <br /> vadose zone sample locations are depicted on Plates 5 and 6. <br /> ' 3.2.1 Collection of Soil Samples <br /> 1 The samples were collected by advancing a stainless steel hand auger to the desired <br /> sampling depth and driving a stainless steel tube into the soil with a slide hammer. The <br /> hand auger and sampling equipment were cleaned between sample locations with a <br /> ' Liquinox® (laboratory grade detergent) and potable water wash followed by a distilled <br /> water rinse. Each sample was individually labeled, capped, and placed in an iced cooler <br /> ' pending transport to the analytical laboratory under chain-of-custody protocols. <br /> 3.2.2 Chemical Analysis of Soil Samples <br /> Each of the 24 soil samples collected for quantitative analysis was submitted under <br /> chain-of-custody control to CLS of Rancho Cordova, California. <br /> CLS is accredited by the State of California Department of Health Services (DHS) for <br /> the requested analyses. Samples were analyzed on a regular laboratory turn-around <br /> ' schedule, requiring approximately 10 working days for receipt of analytical data. <br /> ' The twenty-four (24) soil samples were analyzed for the following: <br /> • pH by EPA Method 9045C <br /> Volatile Solids by EPA Method 160.4 <br /> • Cation Exchange Capacity by EPA Method 9081 <br /> • Nitrate as Nitrogen by EPA Method 300.0 <br /> ' 101486.4/ST011 R242 Page 9 of 17 October 31, 2011 <br /> ' Copyright 2011 Kleinfelder <br />