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i <br /> Virgil Chavez Land Surveying <br /> 312 Georgia Street, Suite 200 <br /> Vallejo. California 94590-5907 January 17, 2000 <br /> (707) 553-2476 a Fax(707) 553-8698 Project No. 1703-05 <br /> Matt Gafney <br /> Cambria Environmental <br /> 1144 65th Street, Suite C <br /> Oakland, Ca. 94608 <br /> Subject: Monitoring Well Survey <br /> Shell Service Station <br /> 341 East Main Street <br /> Ripon, Ca. <br /> Dear Matt , <br /> i <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 <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 ' 63 771 0+07 . 80 83 . 10 (Rt. ) <br /> MW - 5A 65 . 50 ' 65 .08 ' 0+91 . 09 21 . 00 (Rt. ) <br /> MW - 5B " 64 . 99 ' 0+91 . 11 21. 41 (Rt. ) <br /> MW - 6A 63 . 43 ' 62 . 97 ' 2+70 . 91 187 . 50(Rt ) <br /> MW - 6B " 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 /> 'Z ' <br /> 1� <br /> l, Y tJa E3? �� <br /> M ,/ Virgil Chavez , PLS 6 23 <br /> CAL 4rs�'� <br /> i <br />