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1 <br /> ' GEOLOGIC & GEOMORPHIC PROVINCE: <br /> The site is located in the southern portion of what is referred <br /> to as the Sacramento Valley, which is within the geomorphic <br /> Province called the Great Valley of California. This large <br /> basin, which contains in excess of 25,000 feet of sediments. <br /> extends from Red Dluff on the north to the Transverse ranges on <br /> ' the south. The sediments have been derived primarily from <br /> erosion of the Sierra Nevada Batholith to the east, which have <br /> been periodically reworked and redeposited b/ the many rivers anc <br /> streams. <br /> ' The Calaveras river is about 1 mile to the north of therope�- <br /> ty <br /> and the Smith Canal is a short distance to the south. They bothy <br /> ' empty into the Stockton Deep dater Channel which is to the west <br /> and south. Regional slope is generally towards the west; the <br /> gradient is very flat, less than 5 feet per male. Refer to Plate <br /> ' ZZ for more details. <br /> SOIL CLASSIFICATION: <br /> According to the publication issued by the University of Calif . , <br /> Berkley, in 1952, The surface soils consist of Stockton Adobe <br /> Clay and Honcut Clav over Capay & Stockton. These soils are <br /> t derived from alluvial fans & floodplain deposits; they have good <br /> surface and intermediate subsoil drainage, with a Storie indeh of <br /> 56. Plate ZZZ is a portion of the soil profile map from that <br /> publication. <br /> DEPTH TO GROUNDWATER, SPRING 1986: <br /> According to semi-annual maps Published by the San Joaquin County <br /> Flood Control District , groundwater was about 15 feet below <br /> ground level , (bgl , ) in the Spring of 1983 & 1986, the highest <br /> levels recorded in the past ten years; (Plate Ztlel The latest <br /> County map available at the time of this report is for the Spring <br /> of 1992; the water table was recorded at approximately 40 feet <br /> b9l - Recent communication from the County EHD revealed that <br /> monitoring wells in the area have recently measured groundwater <br /> in the range of 32 to 40 ' b91 , which agrees closely with the <br /> County maps. Because of the heavier than normal rainiali which <br /> has been occurring, it is possible that water levels may be <br /> higher than recorded. <br /> LOCATION OF NEARBY WELLS: <br /> Plate V indicates the locations of water wells used for measuring <br /> the water table in the County. Although there do not appear to <br /> 2 <br />