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Zone 7 Water Agency – Tennis Park Test Well Summary <br />and Production Well Design Recommendations <br /> <br /> <br /> 6 Zone 7 Water Agency <br />December 2025 <br /> <br />A spinner survey was also conducted in the well to measure flow under non-pumping (static) conditions <br />(Appendix A). The results of the static spinner survey show that water flows within the well from the <br />upper three screened interval into the lower three screened intervals under non-pumping conditions. <br />Table 7 summarizes the flow contribution for each screen section in the well under static conditions. <br />Positive values for production and % of flow indicate water is moving into the well structure through <br />screen sections, negative values indicate where water is moving out of the well structure those screened <br />sections. <br />Table 7. Zonal Flow Contribution Static Conditions <br />Screen Interval (feet bgs) Production (gpm) % of Flow <br />195-215 11 35 <br />220-240 10.5 34 <br />300-320 9.7 31 <br />380-420 0.0 0 <br />470-520 0.0 0 <br />560-600 (-2.2) (-7) <br />700-730 (-13.7) (-44) <br />740-760 (-15.3) (-49) <br /> <br />2.6. Well Yield Estimation <br />LSCE used the data derived from the constant rate pumping test, combined with data regarding the range <br />of expected regional groundwater levels, to develop well pumping capacity estimates for the wells <br />constructed at Tennis Park, Del Prado Park, and Hansen Park. The methodology, data, and analysis used <br />to develop pumping capacities for the three sites are detailed in Appendix C. Table 8 summarizes the <br />estimated pumping capacity of well constructed per the design recommendation presented in Section 3 <br />at Tennis Park. <br />Table 8. Summary of Well Pumping Capacity Estimates <br />Well ID <br />Proposed <br />Top of <br />Screen (ft <br />bgs) <br />24-Hr Q/s <br />(gpm/ft) <br />High <br />Available <br />DD (ft) <br />Low <br />Available <br />DD (ft) <br />Assumed <br />Well <br />Efficiency <br />(%) <br />High <br />Pumping <br />Capacity <br />(gpm) <br />Low <br />Pumping <br />Capacity <br />(gpm) <br />Tennis <br />Park 195 57.2 178 120 50 5,100 3,400 <br /> <br />The well capacity estimates provided in Appendix C, and hence the overall project yield, should be <br />considered best estimates at this time based on installation and testing of relatively small diameter test <br />wells. The final full-scale production well yields and overall project yield may vary by several hundred gpm <br />more or less than the test well based estimates provided in this feasibility study. Production well yields <br />will be a function of multiple variables (e.g., specific capacity and well efficiency) that may vary between