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APPENDIX A:TREE MONITORING RESULTS <br /> APPENDIX A <br /> Results of Year 6(2012)Tree Monitoring-Holt Phytoremediation Site <br /> Average Number Percent <br /> Species Vigor Number of Dead Dead Percent <br /> Area Acronym Common Name Scientific Name Score" of Trees Trees Trees' Survivorship <br /> Area C POFR Fremont cottonwood Populus fremontii ssp. fremontii 1.6 8 2 <br /> SAGO black willow Salix gooddingii 2.1 7 <br /> Total 1.9 15 2 13% 87% <br /> Area D° ACNE box elder Acer negundo var. califomicum 1.7 10 3 <br /> POFR Fremont cottonwood Populus fremontii ssp. fremontii 2.0 14 1 <br /> QULO valley oak Quercus lobata 2.1 12 2 <br /> SAGO black willow Salix gooddingii 1.3 14 5 <br /> Total 1.8 50 11 22% 78% <br /> TOTAL NUMBER OF TREES (ALL SITES) 239 19 <br /> AVERAGE PERCENT TREE SURVIVORSHIP(ALL SITES) 92% <br /> AVERAGE VIGOR SCORE(ALL SITES) 2.2 <br /> a Slight numerical discrepancies in averaged scores are due to rounding. <br /> °Some trees previously presumed dead in Year 5(2011)re-sprouted from rootstock in Year 6(2012) <br /> `Vigor Ranks: High(3)tree has 67 to 100 percent healthy foliage;Medium(2)tree has 34 to 66 percent healthy foliage; Low(1)tree has 0 to 33 percent healthy foliage <br /> A-2 SAC/420307/113570001(YEAR6-2012_HOLTTREE_MONITORING_REPORT-FINAL-V5.DOCX) <br />