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t;ancti� <br /> SCS Engineers <br /> April 28, 1987 <br /> Page 2 <br /> Results <br /> The results of th�ssuryEyycoveragewandnthe efeatures sketch mdefined on eachap that is GPR <br /> This map shows <br /> traverse. Generally, two types of features are observed be pipehe psroriother <br /> The first are isolated subsurface objects that app <br /> utilities. Several approximate alignments that generally trend north-south <br /> and parallel i�ioffet Streearare <br /> biare other e canteicatd. Alsoamhane GPR traversPototed <br /> feat—es that da n a <br /> these h <br /> anccher. Typically, features are less than about three feet eep. <br /> re zones where the subsurface appears disturbed <br /> The second type of feature a <br /> or anomalous with the loteninddnear therGrant ardsM,ffatsStreethintersection. <br /> enclosed map as being ca <br /> Characterized by random and discontinuous radar reflections, these areas may <br /> represent prior excavations and fill material. <br /> res The GPR profiles did not <br /> sudefine <br /> as aany <br /> featHoweveratsincedthe depth be pOfted as <br /> underground structures be the GPR <br /> ' penetration and sursuitais conceiveableythat tanksygreatIernthanvabauio4 oro5 <br /> one site to another, o undetected by the GPR. Therefore, consideration <br /> feet could possibly g <br /> vestigate the anomalous areas defined near the <br /> should he rade to further in <br /> Grant and Moffat Street intersec}ion. <br /> We appreciate the opportunity to provide you with this informaticIt. If you <br /> have any questions, please do not hesitate contacting us. <br /> Yours very truly, <br /> NORCAL GeoRwslcal Consultants <br /> Kenneth G. Blain <br /> Principal Geophysicist, GF'-887 <br /> KGB/wb <br /> Enclosure <br /> 1 <br /> x <br />