Laserfiche WebLink
4 ���� .Yh1STIfnBii <br /> IL <br /> V <br /> 2.6 Estimates of liquid quantity and composition leaked: <br /> No estimate of the quantity of fuel leaked can be determined <br /> rq from existing information. Based on analytical results, the <br /> soil contamination appears to be derived from gasoline fuel. <br /> k 2.7 Topography, geology, hydrology <br /> The project site is situated on level terrain at the <br /> ii southern end of the Sacramento Valley, part of the large <br /> northwest trending sedimentary trough termed the Central <br /> �..n Valley of California. The Sacramento Valley contains a <br /> + i thick sequence of sediments which reach a depth of 10 miles <br /> in some places. These sediments range in geologic age from <br /> Jurassic to Holocene and include both marine and continental <br /> deposits. Near surface deposits are derived from flood and <br /> overbank river deposits consisting of irregularly <br /> interbedded and discontinuous layers of fine to coarse <br /> grained unconsolidated sediments. <br /> The closest surface water to the site is the Mokelumne <br /> s � River, approximately one-half mile to the northeast. The <br /> i river in this location flows generally to the northwest and <br /> is subject to periodic flooding. The regional groundwater <br /> flow is generally towards the t•'okelumne River to the north. <br /> Groundwater beneath the site is expected to occur at a depth <br /> I:a of approximately 10 feet below grade and flow generally <br /> west, based on data obtained from a site located <br /> approximately 1/4 mile to the east. <br /> 2.8 Proximity of private, municipal and irrigation wells: <br /> A survey of all water wells within a one half mile radius of <br /> [Y the site was conducted based on information received from <br /> the California Department of Water Resources. The closest <br /> " wells to the site are domestic wells approximately 80 feet <br /> in depth, 800 feet north of the site. Numerous monitoring <br /> and industrial wells of variou•3 depths exist at several <br /> � h local canneries along the Southern Pacific Railroad tracks, <br /> § approximately 1000 feet east of the site. The approximate <br /> locations of known water wells are plotted on Figure 3. <br /> 2.9 Locations of nearby septic tanks and underground utilities: <br /> The location of the septic tank and leach line in the <br /> vicinity of underground tank and product line are plotted in <br /> Figure 2. No underground utilities have been located on- <br /> site. The location of the septic tank and leach line are <br /> approximate, based on verbal communication from Bruno Maury <br /> � of the Thornton Fire Department. <br /> 2.10 Distance to adjacent buildings and their utility laterals: <br /> t The nearest building and utility laterals around the product <br /> line and tank area are indicated on Fiqure 2. <br /> E <br /> T <br /> 2 <br />