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A <br /> * Virgil Chavez Land Surveying <br /> 3I2 Georgia Street, Suite 200 <br /> VaUejo, Cast fornta 94590-5907 January 17, 2000 <br /> (707)553-2476 - Fax(707)553-8698 Pro 3 e c t No. 1703-05 <br /> Matt Gafney <br /> Cambria Environmental <br /> 1144 65th Street, Suite C <br /> Oakland, Ca. 94608 <br /> Subaect: Monitoring Well Survey <br /> Shell Service Station <br /> 341 East Main Street <br /> Ripon, Ca. <br /> Dear Matt: <br /> This is to confirm that we have proceeded at your request to <br /> survey the monitoring wells located at the above referenced <br /> location. The survey was performed on January 8, 2000. The <br /> elevations for the survey are assumed, and are based on the <br /> same datum as our previous survey. The station and offset <br /> data is for top of casing locations, using the southerly face <br /> of the existing station building as reference line. <br /> Rim TOC i <br /> Well No. Elevation Elevation Station Offset <br /> MW - 4A 64. 12' 63. 77' 0+12 . 37 84.20(Rt. ) <br /> MW - 4B 64. 18' 63. 77, 0+07 .80 83. 10 (Rt. ) <br /> MW - 5A 65. 50' 65 .08 ' 0+91.09 21.00(Rt. ) <br /> M-W - 5B if 64. 99' 0+91. 11 21.41(Rt. ) <br /> MW - 6A 63.43' 62. 97, 2+70 . 91 187.50(Rt. ) <br /> MW - 6B it 63 .05, 2+70 . 86 187.90(Rt. ) <br /> SW Bldg Cor 0+00 --- <br /> SE Bldg Cor 0+56 . 41 --- <br /> Measurements taken at approximate north side of top of box.,. <br /> top of casings were marked at location of measurements. <br /> Sincerely, <br /> E323 , <br /> t . J <br /> Virgil Chavez, PLS 6 23 <br />