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<br />Part (2) <br /> <br />" <br /> <br />When t + t = (150 + 216) days = 366 days, <br />-p -i <br /> <br />.' <br /> <br />(t + t.) T / a'iJ S = 1. 53. <br />-p -1 - - - <br /> <br />From Figure 2: by interpolation, 1/B; 0.10. <br /> <br />From Figure 3, by interpolation, <br /> <br />/ a - <br />vT Qa S = 0.32. <br />- -- <br /> <br />Compare results using Table 1 and method of superposition (see <br /> <br />Table 2) with the estimates by interpolation. <br /> <br />i ) <br />\Ep + E1 '!.l~ <br />1.53 <br /> <br />q /Q <br />-I) - <br />a: 568 <br /> <br />y.p!/Bl S <br />-0.560 <br /> <br />t. T / a'iJ S <br />-~- - - <br />'0.90 <br /> <br />~/g" <br />0:-456 <br /> <br />~ i T}9!.'iJ '2 <br />0.233 <br /> <br />~p - 3Y3. <br />0.11 <br /> <br />(v - vi) !./Qa'iJ_s <br />-p -- <br />0.33 <br /> <br />The results by interpolation in Figures 2 and 3 are very close <br /> <br />to those using Table 1. <br /> <br />216 days after pumping ceased, j,/!l. = 0.11 and <br />v = (0.33) (Qa'iJS/T) = 0.33 (1.1 acre-ft/day) (239 days) = 87 ac~e-ft. <br />--- <br /> <br />The additional volume of stream depletion during the 216-day <br /> <br />period = (87-31) acre-ft = 56 acre-ft. <br /> <br />.' <br /> <br />-1'0.>- <br />.r <br /> <br />3:l <br />