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July 28, 2020 Irerracon <br /> Ms, Marina Nunez <br /> Kitchell CEM Inc. <br /> 5151 Pacific Avenue RECEIVED <br /> Stockton, California 95207 <br /> Phone: (209) 954-5741 JUL 3120 <br /> Email: mnunezCcDkitchell.com ENV1R0NMENiALMEALTH <br /> DEPARTMENT <br /> Re: Groundwater Measurements <br /> Manteca Farm Improvements, APN: 197-040-06 <br /> 5298 E. Brunswick Road <br /> Manteca, San Joaquin County, California <br /> Terracon Project No. NA197073 <br /> Dear Ms. Nunez, <br /> Per your request, this letter includes the groundwater measurements recorded for the subject <br /> property (site). The following groundwater levels were recorded using a 300 foot Heron <br /> Instruments Skinny Dipper Water Level Meter. <br /> Date Time Depth to TApproximate Stick up Corrected <br /> groundwater height Depth <br /> - --- -I!—---- -- (feet) (feet) - (feet) bgs --- <br /> July 27, 2020 9-:00-to 9:15 AM 37.50 1.16 _ 36.34 <br /> July 28, 2020 11:00 to 11:30 AM 37.95 1.16 { 36.79 <br /> Based on a review of our Soil Suitability Study and Nitrate Loading Study (SSNLS) dated October <br /> 19, 2019 (Terracon Project No. NA197073) and a Geotechnical Engineering Investigation <br /> Proposed Delta Farm Improvements dated April 26, 2019 prepared by Krazan &Associates Inc. <br /> (Krazan) Project No. 072-19013, groundwater was encountered in geotechnical borings at <br /> approximately 34.5 below grade surface (bgs). Therefore, groundwater below the site has been <br /> measured between approximatley 34.5 feet bgs in the Spring of 2019 and 36.79 feet bgs in the <br /> summer of 2020. <br /> The groundwater flow direction and the depth to shallow, unconfined groundwater, if present, <br /> would likely vary depending upon seasonal variations in rainfall and other hydrogeological <br /> features. Without the benefit of on-site groundwater monitoring wells surveyed to a datum, <br /> groundwater depth and flow direction beneath the site cannot be directly ascertained. <br /> Terracon Consultants Inc. 902 Industrial Way Lodi, CA 95240-3106 <br /> P 209-367-3701 F 209.333-8303 terracon.com <br />