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' Boring/Well Construction Log NfI�l��-f-1fA1YfR EAKv4u m AND EHYIADN,IENTAL SERNCFS Boring/Well No MAI-1 B4Po301 w GRANTLINE ROAD ' DRILLING COMPANY Project Name CITY OF TRACY SPECTRUM DRIwNG MMOO(5) DRILL AUGER DRam8 SZE olect Number 10101 HOLLOW STEM -INCH ISOLATION' CASINGFROM TO FF LEVATION AND DATUM ratu OEPTfI NONE NOT MEASURED 21 5 BLANK CASING FROM TO FT DATE STARTED DATE COMPLETED 2-INCH SCH 40 PVC 0 5 10 Lo7 93 10/07/93 PERFORATED CASING F TD FT ' STATIC WATER ELEVAMON 2-INCH PVC, 0 020 SLOT 5 20 95 SIZE AND TYPE OF RLTER PACK FROM To FT LOGGED BY 2x12 LONESTAR 4 20 DENNIS NAKAMOTD SEAL FROM TD Fr SAMPLING METHODS WELL COMPUTON BENTONITE 3 4 ' CALIFORNIA MODIFIED ® SURFACE HOUSING GROUT FROM To FT FLIT SPOON © STAND PIPE FT CEMENT BENTONITE 0 3 SAMPLES SMIPLE OVA PDklR4M DEWH BORING/WELL CONSTMICnONUSCS LUIHOLM SAMPLE DESCRIPTION AND DRIWNG REMARKS NUMBER RESIST CEMENT/ - _ LAWN AREA, BROWN CLAYEY SOIL BENTONITE GROUT BENTONITE 3 PELLETS 770 6 5 5 CL -- �gY - BROWN CLAY, PLASTIC, MOIST, NO PETROLEUM 7 2--INCH T T_ ODORS, OVA = 0 PPM SCH 40 PVC BLANK CASING - - - ' SCH 40 PVC - 4 0 02-INCH SLOT 771 7 10 WELL SCREEN 10 CL - L16Y - BROWN CLAY, PLASTIC, WET TO VERY MOIST NO PETROLEUM ODORS, OVA = 0 PPM, WATER LEVEL AT 8 15 FEET IN AUGER FLIGHT ' 6 LAPIS LUSTRE 772 8 15- 1 C FILTER 15 CL �1�� - BROWN, CLAYEY SILTY, FINE GRAINED 6 PACK SANDY CLAY, WET, NO PETROLEUM ODORS, OVA = 0 PPM -� WATER LEVEL AT 7 4 FEET IN AUGER FLIGHT ' 2 773 9 20 20 SC F SAND - MOTTLED, COARSE GRAINED SANG, SLIGHTLY 29 CLAYEY. SATURATED, NO ODORS, NO SHEENS PVC END CAP OVA = 0 PPM, WATER LEVEL 6 1 FEET IN AUGER FLIGHT ' 25 25 ' 30 30 FIRST OBSERVED GROUNDWATER 35 35 BACKGROUND OVA = 08 PPM AS METHANE MEASURED BY FOXBORO CENTURY 128 SHEET 1 OF 1