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LID O N APPROXIMATE I LEGEND: J SITE BOUNDARY I APPROXIMATE Ld EXISTING OUIK STOP PLANTER TACO BELL I MW-10 . GROUNDWATER MONITORING WELL -j MARKET SITE BOUNDARY OF LOCAL UPPER SCREENED ZONE z,� _ I ! I MW-9 GROUNDWATER MONITORING WELL -5.55 OF LOCAL LOWER SCREENED ZONE z b -5.50 / / I —5.70 GROUNDWATER ELEVATION CONTOUR + wI LINE OF LOCAL LOWER AQUIFER IN —5.60 I FEET BELOW MEAN SEA LEVEL 5 / -5 MW-4 r (MSL) Lu -5.70 GROUNDWATER ELEVATION OF ASPHALT ASPHALT LOCAL LOWER AQUIFER IN FEET Z -5.65 BELOW MSL. MEASURED ON 03/13/06, _ ¢ I oMW-3 B OUTLINE --5.63 I / GROUNDWATER FLOW DIRECTION OF EXISTING I GRADIENT � 0.001 ft/ft Q -5.47 CANOPY MW-1R RAMP / MW-6 -5.70 I NOTES: + / •"� P P PUMP m � I 1, CONTOURS ARE BASED ON INTERPRETATION APPROXIMATE __ MW-5! o CF AVAILABLE DATA, AND ARE NOT LOCATION OF I �_ I INTENDED TO IMPLY CERTAINTY. UNDERGROUND h-o STORAGE TANKS —— EXISTING I PUMP PUM TACO BELL MW-7 r s PLANTER I -MW—2 5.61 ii A ORKING -..•� 3n —� . / I I LOT I -5.90 PLANTER I MW-9 MW-10 I` SIDEWALK I W I ! E j SCALE i 30 0 30 FEET GROUNDWATER ELEVATION CONTOUR MAP 5 — --- T --- - — — — -- -- --- — -- LOWER ZONE WELLS (MW-IR, MW-2, C� W E S T H M M E R L A N E MW-3, MW-4, MW-8 AND MW-9) (03/06) HISTORIC GROUNDWATER FLOW 1st QUARTER 2006 DIRECTIONS AND GRADIENTS QUIK STOP MARKET 132 BEGINNING 2/97 3555 WEST HAMMER LANE SOURCE: 517E SURVEY BY PON ARCHER, STOCKTON, CALIFORNIA CIVIL ENGINEER, INC.. ^✓ DATED DECEMBER 14, 1992 PREPARED FOR WELL MW-8 SURVEYED BY QUIK STOP MARKETS, INC. DATED 12/9/99EEftING, INC, FREMONT, CALIFORNIA ©a.�o4/as'swco rov ocroRr rc sa sa -5.70 � 5,7 ASSOCIATES INC. No. DATE I ISSUE / REv1510N " er Ka VO'D av DATE: 05 OS 46 FIGURE Q PROJECT NUMBER SCALE: AS SHOWN 62503.3205 l