Laserfiche WebLink
1.0 Background Information <br /> Ina letter dated August 26,2004,the Central Valley Regional Water Quality Control Board(Board) <br /> required that the owners of Chinchiolo Stemilt California, LLC and Sierra Hills Packing, Inc. <br /> (CSC/SHPI)comply with an"Order for Technical Reports"(Order).The Order required that a <br /> workplan for the installation and testing of monitoring wells be prepared"to investigate existing <br /> groundwater quality both up-gradient and down-gradient of the land application area and <br /> wastewater pond."Neil O.Anderson&Associates,Inc. (NOA)has been retained by CSC/SHPT to <br /> assist with meeting these requirements. <br /> A"Ground Water Quality Investigation Workplan"with amendments and a "Sampling and <br /> Analysis Plan"were submitted in early October and were approved by the Board on October 19, <br /> 2004. Together,those documents constituent the"Workplan"for well installation and sampling <br /> activities. The Workplan specified that 4 monitoring wells would be installed and sampled,and a <br /> report of well installation would be prepared which documents as-built conditions and initial <br /> • sampling results. This document is intended to meet the requirements for a well installation report. <br /> 2.0 General Information and Anticipated Hydrogeology <br /> The facility is located immediately northwest of the intersection between Jack Tone Road and <br /> Fairchild Road, in San Joaquin County,California. Figure 1 shows the topography of the area as <br /> depicted on the Waterloo,Ca. USGS 7.5 Minute Topographic Quadrangle. The local topography is <br /> indicated to slope to the west-southwest at approximately 0.00 125 ft/ft(—6 feet per mile). <br /> According to a preliminary geologic map of the Bellota 15-Minute Quadrangle published by the <br /> USGS,the facility is underlain by foothill derived alluvial silt, clay, and minor sand deposited <br /> during the late Pliestocene. <br /> Based on information acquired from the San Joaquin County Flood Control and Water Conservation <br /> District,ground-water occurs at between 107 to 127 feet below ground level (BGL), and the <br /> direction of groundwater flow beneath the facility can vary significantly based upon the <br /> • configuration of a groundwater divide in the area. The direction of groundwater flow <br /> 3 <br />