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Appendix A <br />Development of the Phase 2 Task 43.2 Aquifer Properties Data Set <br />"Trans" and "K" were not null. B was calculated as <br />''Trans'' / 7.48/'' K" . <br />2. "B" (sand thickness) values were estimated for all HydroBase <br />pumping test and specific capacity tests, which were not excluded as <br />identified in the steps above, where "B" was null and for all Task 37 <br />pumping and specific capacity tests. B was obtained from the <br />geophysical data in HydroBase as the primary source when permit <br />numbers and suffixes could be matched. If no matching record was <br />found in the geophysical data then a B value was extracted from the <br />Phase 2 Task 42 Aquifer Configuration grids. For specific capacity <br />tests, if the B value was extracted from the Task 42 grid, it was <br />corrected for partial penetration. A total aquifer thickness was <br />extracted for each test location from the Phase 2 Task 42 <br />Configuration grids. The total perforated interval was divided by the <br />total thickness and multiplied by the grid's total sand thickness value <br />to obtain the corrected B value for a partial penetrating well. If the <br />total perforated interval was greater than the B value then the B value <br />was used and no correction was applied. <br />3. "B" (sand thickness) values were estimated for all HydroBase <br />pumping tests, which were not excluded as identified in the steps <br />above, where the "Comment" field value was'B=BPERF-TPERF <br />(used to calc. K)'. B was obtained from the geophysical data in <br />HydroBase as the primary source when permit numbers and suffixes <br />could be matched. If no matching record was found in the <br />geophysical data then a B value was extracted from the Phase 2 Task <br />42 Aquifer Configuration grids. <br />4. "K" values were calculated for all wells where a new B was <br />estimated by "Trans' divided by 7.48 divided by "B" to obtain "K" in <br />ft/ d. <br />D. Final Data Set <br />After all exclusions were made and all data processed as indicated in items B and <br />C, the final data set was used to complete the Phase 2 Task 42.3 TM data analysis. <br />SPDSS Task 43.2 TM- Final A-3 <br />02/13/06 <br />