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Slug Test <br />August 30, 1999 Page 2 <br />n <br />U <br />Table 1 <br /> Well FI-1 Well 00 8-AT-1 <br /> K (gpd/ ) T (gpolft) K (gpd/ ) T (gpd/ft <br />Bouwer & Rice 130 980 .300 1700 <br />Bouwer & Rice (late time) 21 160 - - - - - - <br />Cooper et al. 36 270 110 640 <br />Well FI-2 <br />The well is completed in the Fish Creek alluvium. The well is constructed of 4 inch nominal ID <br />Schedule 40 PVC. The well reportedly has a screened interval of 5-ft. The well was reportedly <br />drilled with a 6-in diameter auger and gravel packed. The measured total depth of the well was <br />10.1 feet below ground surface. At the time the well was drilled, the highest water level <br />measured was 7.0 feet below ground surface. <br />On August 2, 1999, the water level was 10.53 feet below the top of the casing (TOC) or 5.9 feet <br />below ground surface. This left a saturated thickness of 3.1 feet in the well. This was an <br />insufficient thickness to allow for accurately testing the well. <br />We11008-AT-1 <br />Mo geologic or construction log were found for the well. The measured depth of the well is 12.3 <br />feet below ground surtace. The casing at the surface is 2 in nominal ID Schedule 40 PVC. The <br />well was assumed to be completed to total depth with the same diameter casing and screen. <br />• Based upon knowledge of the local geology and construction of other wells the well was <br />determined to be completed in the Trout Creek alluvium and was assumed to have a three foot <br />screened interval. These estimates of well construction will most likely not effect the calculated <br />aquifer properties by more than t 30%. On August 2, 1999, the water level was 9.71 feet below <br />the top of the casing (TOC). On August 3, before starting the slug test, the water level was 9.70 <br />feet below TOC. This indicates that for purposes of the test the water level in the well was <br />stable. <br />The well was tested on August 3, 1999. Arising head slug test was performed by <br />"instantaneously" removing a 1.315 in OD, 2.80-foot long bailer from the well. The water levels <br />were measured using a pressure transducer connected to an electronic data recorder. The data <br />collected is shown on Attachment B. The test was begun at 09:55a and the water level returned <br />to pre-test conditions within 50 minutes. <br />The data was analyzed by using methods developed by Bouwer 8~ Rice (1976) and Cooper et <br />al. (1967). Plots of the data are presented on Figures 4 through 6. The results of the test are <br />summarized on Table 1 <br />Sincerely, ~ _ )~~ <br />~\ ~Jw/ <br />James G. Nalven <br />• Enclosures <br />c~doawus+~u++oez+«-sw9va,a+..a« James G. Nalven Consulting <br />