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File No. NFS-4342-01 <br /> DATE DRILLED: 3/18/98 DRILLER: Exploration Geoservices <br /> ELEVATION: DRILLING METHOD: Hollow Stem Aucler <br /> BACKFILL METHOD: As Shown DIAMETER OF BORING: 8 in. <br /> LOGGED BY: S. Derrega DEPTH TO GROUNDWATER- 10.5 ft. <br /> ^ p MC O- <br /> z O m n <br /> CL L ; s W Log of Exploratory Boring No. MW-3 06 Water Well <br /> rn 2 in LL a v o) - Level conswcimn <br /> 'o <br /> 0 Descri tion cn <br /> SANDY LEAN CLAY with silt,very dark brown,grades into SILTY <br /> 1 SAND, moist,stiff. <br /> 2 <br /> 3 <br /> 4 <br /> 13 2.5 SANDY LEAN CLAY with silt to SILTY SAND with minor clay, light CL/SM <br /> 5 3-1 olive brown with white carbonate, mica flakes,oxide stain, moist, <br /> stiff. <br /> 6 <br /> 7 <br /> 8 — — — <br /> 9 <br /> 16 NA SILTY SAND, light olive brown mottled with reddish brown,wet, SM <br /> 10 3-2 medium dense. <br /> V <br /> 11 <br /> 12 <br /> 13 <br /> 14 <br /> 12 NA SILTY SAND, light olive brown,abundant mica flakes,wet, medium <br /> 15 3-3 dense. <br /> 16 <br /> 17 <br /> 18 — — — — <br /> t9 SANDY LEAN CLAY with abundant silt, light olive brown to brown, CL <br /> 3-4 10 NA minor mica flakes, moist, stiff. <br /> 20 <br /> 21 <br /> Boring terminated at 20 feet. <br /> 22 Groundwater encountered at 10.5 feet. <br /> P3 Note: Blows/foot count derived from a 3 inch Modified California <br /> Sampler has been converted to Standard Penetration Test Values. <br /> 24 <br /> 25 <br /> Earth Systems Consultants Lathrop Effluent <br /> Percolation Ponds LOG OF EXPLORATORY BORING NO. MW-3 <br /> .� Northern California <br /> Lathrop,California Figure 8 <br />