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<br />EXPLANATION
<br />A m 1. TIME -DISTANCE GRAPHS AT TOP OF FIGURE REPRESENT
<br />m m !!' I ry SEISMIC REFRACTION SURVEY DATA; DOTS ON BOTTOM LINE
<br />m n 3 OF GRAPHS REPRESENT GEOPHONE LOCATIONS, X'S REPRE-
<br />n SENT SHOT POINT LOCATIONS.
<br />G 0 tR n- VERTICAL SCALE: 1"- 20 MILLISECONDS
<br />• ``► Z HORIZONTAL SCALE: 1"- 50 FEET
<br />N _ N 2 2. SUBSURFACE VELOCITY PROFILES AT BOTTOM OF FIGURE
<br />O REPRESENT INTERPRETATIONS OF SEISMIC REFRACTION
<br />tt: N DATA AND ARE INTENDED FOR DESIGN PURPOSES ONLY.
<br />`'I HVERTICAL AND HORIZONTAL SCALE: 1" = 5d FEET
<br />3. LOCATION OF SEISMIC LINES SHOWN ON FIGURE NO.iSI I
<br />0 0 ® S o 0 0 0 0
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<br />PortolaGeophysics
<br />21 Santa Maria Avenue PortolaI
<br />SEISMIC REFRACTION SURVEY
<br />DATA AND INTERPRETED SUBSURFACE VELOCITY PROFILES
<br />COVNT`( OF S4kN 70AQ%JlW
<br />HAw.wr_y LAME 3N+11AP-y UANDFIu &0%.ACEMENT SME.
<br />SArJ 'TOAQUIRi CUNT/ I CAL111OR.NIA
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