Laserfiche WebLink
by Airport Way in the east, French Camp Road on the North, <br /> + Interstate 5 in the west, and Lathrop Road on the south. Where <br /> high salinity levels are found, the Health Department has the <br /> authority to seal off upper aquifers to protect upward migration <br /> of saltwater. <br /> There are concerns about the ability of the groundwater source to <br /> continue to meet water quality standards and water supply needs <br /> in future years. A regional water management study was <br /> undertaken by San Joaquin County for the east county area, which <br /> includes Manteca. The study addressed future groundwater basin <br /> response to alternative management plans , including importing <br /> supplemental surface water to be used conjunctively with <br /> groundwater to meet future groundwater demands. <br /> Within the City of Lathrop, there are two areas where <br /> contamination of groundwater by toxic chemicals has occurred. <br /> Chlorinated volatile organics (specifically trichloroethylene <br /> [TCE] ) and arsenic have been found in the groundwater on and <br /> around Sharpe Army Depot on the north end of town. Contamination <br /> on the army depot site extends down to at least 140 feet. TCE <br /> concentrations as high as 1200 ppb (parts per billion) have been <br /> detected onsite. The state action level for TCE is 5 ppb. The <br /> Regional Water Quality Control Board has ordered the drilling of <br /> test wells and a sampling of water to determine the extent of the <br /> contamination. A monitoring program is currently underway. <br /> Significant groundwater contamination has also occurred in the <br /> south of town on the J.R. Simplot property, south of Louise <br /> Avenue and west of Howland Road. Under the former operation and <br /> ownership of Occidental Chemical Corporation, the facility <br /> experienced chronic spills and leaching from waste piles and <br /> various pesticides , herbicides and fumigants manufactured on the <br /> site. The releases resulted in the contamination of the <br /> underlying groundwater which then migrated to the west under the <br /> vacant land targeted for development known as the Crossroads <br /> Industrial Park (aka the Kearny Ventures site. ) A groundwater <br /> remediation effort is currently underway, including the operation <br /> of several groundwater extraction wells and numerous monitoring <br /> wells. <br /> Farmland: <br /> Most of the planning area is potentially prime farmland. <br /> Agriculture continues to constitute a major portion of San <br /> Joaquin County's economic base. Approximately 696 ,160 acres were <br /> in agricultural production in the county during 1984. <br /> Agriculture constitutes the predominant land use in the planning <br /> area with fruit and nut orchards , field crops, vegetable, seed, <br /> and other row crops , vineyards and pasture, the main uses. <br /> Agriculture and agricultural services generate 11. 5 percent of <br /> the city's total employment. Agriculture-related manufacturing <br /> employment , including seasonal jobs , constitutes an additional <br /> 8. 9 percent of the City's total employment (Manteca District <br /> Chamber of Commerce 1985 . ) Approximately 700 acres of prime <br /> 4 <br />