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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />of 6th Street consist of interlayed and intermixed sand, silt, clay <br />and some sand/gravel mixtures. The log of existing Well No. 29389 <br />shows similar soil profile. <br /> <br />In the southern part of Town, the presence of organic clay at and <br />near the surface indicates that swampy conditions have likely <br />existed there for a long period of time. The number of artesian <br />well s south of Gaspar Street are probably contributing factors to <br />the swampy conditions. <br /> <br />Initially and throughout the duration of the study, there were no <br />reports of water in basements or crawl spaces. Our readings <br />indicate that the depth to water in the northeast area varied from <br />2' to 12.5' with the shallowest depths occurring in mid July for <br />most wells. Through interviews with local residents and the SCS, we <br />project that the groundwater levels in 1986 and 1987 were <br />approximately 3 to 4 feet higher than the 1988 levels. <br /> <br />,.----= ~ <br /> <br />The p roj ect Scope of Work called for a pumpi ng test to be performed <br />to determine the transmissivity and the storage coefficient for the <br />water bearing strata. Well No. 10 was cased with a 4" PVC pipe so <br />that it could be pump tested. However, upon insertion of a <br />submersible pump the well was pumped dry within three minutes. WRC <br />concluded that the well would need to be developed (a considerable <br />expense) before a successful pumping test could be performed. WRC <br />made arrangements with Valley Pump of Monte Vista to test Well No. <br />29389 on Amos Bernal's property at 907 Salazar Street as an <br />alternative. <br /> <br />On July 18, 1988, Valley Pump installed a pump approximately 43 feet <br />below surface in the 55 foot deep, 6" cased well. After adjusting <br />pump, meter and discharge hose, testing began at approximately 8:30 <br />a.m. Test Wells No.3 (265' south of well) and No. 10 (450' south <br />of well) were used as monitoring wells. After 8 minutes of pumping <br />at 12 gpm both test wells were drawn down 0.2 feet. No additional <br />d rawdown was present after one hour of pumpi ng. WRC checked test <br />Well No. 2 (700' NW of well) for 15 minutes and observed no <br /> <br />-14- <br />