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i AL1 1vu S HPV 1Zs`J4 / "J=47 NO .UU:D r .U1 `F ,paned Kerma Todd. Con Engineers. Inc. HYDROLOGIC SUP-VEY IF 1Stockton Party. Unit 1904 West Charter Way P.U_ Box .907 Stockton, CA 95201 ' Size: approximately 5 acres ` Owner: Leo Vol:pi 'l Water Su ply Sources The City of Stockton supplies water throughla municipal distribution j system from wells .located in and around the cit The Stockton p'a're► Unit E uses city water as do all of the surrounding indastrles. Topography. The front half of the property is smoothly graded, but the back half is not and has several areas where pudkes develop after rainstorms. The highest point is located at the northeast corner and is approximately 5 feet higher than the loosest points along the rad. The topography is shown on Figure 1. � Ground Surface Condition. The front half of the property has been graveled and oiled, but coverage is not uniform with somalspots wal—covered and some almost bare. The hack half of the property has been smoothed, butno gravel or .oil has been applied. 't !,f SbiL:.TVpe.----Silty 10ama Ib E Infiltration. Infiltration takes place thr;6ughout most of the South half of the farm unit where no gravel and oil has been applied. In the front half of the property: some Infiltration also takes place but at a much slower rate. Ib Most of the farm unit's infiltration probably takes place through the unlined ditch located at the south end of the farm units west side. Runoff from about 95 percent; of the farm unit flows to ,phis unlined ditch. i I3raii�a ee. The. drainage pattern is illustrated on Figure 1. Two con- nected ditches drain approximately 95 percent ot; the farm unit. The remaining C 5 percent drains off the property. J t The evaporation ditch constructed along, the southern thirst of the propertyts west side collects water from moot of the farm Urnit. It connects with the ditch that was guilt diagonally across the property to protect the main building floor from flooding. r i .t f