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FIGURE 5. TYPi�AL SUBSURFACE GEOLOGY AND ..ELL CONSTRUCTION <br /> FIELD AVENUE SITE <br /> Date: March 18, 1986 Elevation. {4. 38 <br /> WELL DESIGN <br /> DEPTH I m ta a PERE. DESCRIPTION <br /> IN = r_ o = RES IS. 03 SAND <br /> FEET N � o 6 / FT. 0. 028 SLOT <br /> Existing Ground Surface <br /> Dark brown wet medium stiff, plastic <br /> 1silty clay (CL ). <br /> 2 4- 1 9 - <br /> 3 Gold brown, wet, stiff, slightly plastic, <br /> 4 silty clay (CL >. - <br /> 6 4-2 23 Presence of very fine-grained sands - <br /> 7 - <br /> 8 - <br /> 9 - <br /> 10 ! !; Brown, wet, medium-dense, tine- to 10 <br /> _ medium-grained, silty sand (SM ) <br /> 11 4-3 . :j:j: 19 with minor clay binder. - <br /> 13 - <br /> i••:i•:r:i•:i <br /> 14 - <br /> 15 .i•.i. 15 <br /> 16 4-4 33 Mottled grey brown, saturated, very - <br /> 17 stiff to hard, plastic, silty clay (CL ) - <br /> with minor amounts of fine-grained <br /> 18 sand. - <br /> 19 :i :j :j Light grey brown, saturated, dense, silty <br /> 4-5 !' ! ! 31 sand (SM ) with minor cloy binder. <br /> 20 20 <br /> 21 Boring terminated at 20 feet - <br /> — 22 - <br /> 23 - <br /> - 24 - <br /> 2 23 24 - <br /> 25 25- <br /> 26 - <br /> 27 - <br /> Figure - Test Boring Log No. LB-4 <br /> - Monitoring Well No . MW-4 Woodward-Clyde Consulter <br />