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Appendix C - Biological Resources Supporting Information COMBINED
City of Pleasanton
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BOARDS AND COMMISSIONS
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PLANNING
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AGENDA PACKETS
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2020 - PRESENT
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2025
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12-10
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ITEM 5 EXHIBIT A
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Appendix C - Biological Resources Supporting Information COMBINED
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Table 4: Es�mated Popula�on Impacts and Conserva�on of Congdon’s Tarplant on the Lester Property Project Site Based on <br />Surveys Conducted in 2014. 2016, 2017, 2019, and 2023 by Acreage and Individuals*. <br /> <br />Impact Area within Grading Footprint <br />Pop <br />ID <br />Area m2 (acres) Popula�on # <br />2014 2016 2017 2019 2023 2014 2016 2017 2019 2023 <br />1 1,335 (0.330) 0 (0) 0 (0) 862 (0.213) 1122.2 (0.28) 57,405 0 0 862 78554 <br />2* 221 (0.055) 134 (0.033) 140 (0.034) 174 (0.043) - 7,204 205 92 1,392 - <br />3 177 (0.044) 0 (0) 0 (0) 0 (0) 272.3 (0.07) 200 0 0 0 545 <br />4 6,220 (1.537) 943 (0.233) 1 (0.001)* 3,237 (0.800) 5,658.2 (1.40) 9,952 4,769 1 16,185 8832 <br />6* 26 (0.006) 40 (0.010) 0 (0) 8 (0.002) - 30 9 0 4 - <br />10* 23 (0.006) 0 (0) 26 (0.006) 0 (0) - 100 0 86 0 - <br />11 180 (0.044) 0 (0) 3 (0.001) 0 (0) 40.2 (0.01) 100 0 3 0 26 <br />12 13 (0.003) 0 (0) 0 (0) 0 (0) 0 20 0 0 0 0 <br />Total: 8,195 (2.025) 1,117 (0.276) 170 (0.042) 8,555 (1.058) 7,092.9 (1.75) 75,011 4,983 182 18,443 87,957 <br />Conservation Area <br />1 948 (0.234) 81(0.020) 0 (0) 178 (0.044) 1608.9 <br />(0.4) 40,764 159 0 178 112623 <br /> <br />2* - - - - 667.1 (0.17) - - - - 1334 <br />4 143 (0.035) 106(0.026) 0 (0) 271 (0.067) 1434.8 (0.36) 228 575 0 1,355 1435 <br />5 54 (0.013) 0 (0) 0 (0) 0 (0) 0 100 0 0 0 0 <br />7 113 (0.028) 132 (0.033) 0 (0) 154 (0.038) 180.1 (0.05) 300 175 0 1,386 308 <br />8 120 (0.030) 53 (0.013) 0 (0) 77 (0.019) 25.8(0.01) 300 75 0 770 267 <br />9 6,426 (1.588) 4,408 (1.089) 945 (0.234) 6,928(1.7) 8084.2 (2.0) 32,800 31,809 3,119 62,352 676515.00 <br />10 - - - - 149.3 (0.04) - - - - 351 <br />11 - - - - 58 (0.02) - - - - 22 <br />13 - - - - 20.8 (0.005) - - - - 4 <br />14 - - - - 3.2 (.001) - - - - 5 <br />15 - - - - 26.4 (0.007) - - - - 17 <br />16 - - - - 1105.4 (0.349) - - - - 38689 <br />Total: 7,804 (1.928) 4,780 (1.181) 945 (0.234) 7,608 (1.880) 13,364 (3.30) 74,492 32,793 3,119 66,041 831,570 <br />Conserva�on <br />Loss Ra�o*** 1:1 4:1 6:1 2:1 2:1 1:1 7:1 17:1 4:1 9:1 <br />*Areas impacted and conserved are based on the grading site plans provided at the �me of surveys. Site plans have changed over the years and each survey year accounts for <br />the most recent site plans provided. Popula�ons 2, 6, and 10 are within the conserva�on area as of Oct. 2023 site plans** Popula�ons 13-16 were new popula�ons iden�fied <br />in 2023. *** Conserva�on loss ra�o measures the total area or individuals within conserva�on area in rela�on to the total area or total individuals within the development <br />impact footprint (e.g., acres conserved/areas impacted; conserved individuals/impacted individuals) <br />
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