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1959 Selva Marina Dr Arborist Letter 7.31.25 - 1 tree -::-TR 11 BL1, NIS 5525 St Augustine Rd. (904) 731-9100 SURPEONi=- Jacksonville, FL 32207 BushorsTree@gmail.com Mrs. Carol Rose 7/24/2025 1959 Selva Marina Drive Atlantic Beach, FL 32233 Mrs. Rose, Please find below my Tree Risk Assessment report for your codominant stem Hickory. REPORT SUMMARY I assessed the risk of the codominant stem Hickory in the front of your property using a Level 3 Tree Risk Assessment as described by the International Society of Arboriculture. This assessment was done due to your concern of one stem being dead. Upon inspection, I confirmed one of the two codominant stems to be dead due to a wood boring insect which can introduce fungi, causing hickory wilt. During my inspection of the second stem, I found a cavity in at the root flare, indicating a hollowed area in the base. This area of concern warranted further testing using an IML Resistograph to determine if the decay was in the main stem or only under the root flare. The test results showed an approximate 6" of hollowed wood at the test site. Multiple targets including vehicle and pedestrian traffic were considered targets of potential limb and/or whole tree failure causing significant damage/injury during the 3 year timeframe of this assessment. The likelihood of failure and the consequences of failure resulted in a HIGH risk rating. In my professional opinion, the 2 stems should be removed due to this risk and being unable, through reasonable mitigation, to get the risk below a MODERATE risk rating while preserving a viable canopy. ASSIGNMENT My assignment was to provide a tree health evaluation for a codominant stem Hickory with concerns due to browning leaves. The tree is located on the property of 1959 Selva Marina Drive Atlantic Beach, FL 32233 at the front of the property, in the center of the driveway. I conducted my initial inspection on July 22, 2025 and the follow up for Resistograph testing on July 24,2025. This report contains proprietary information and is for the exclusive use of Mrs. Rose. This report can be shared with the City of Atlantic Beach to comply with tree protection regulations. METHODOLOGY I performed a Level 3 Tree Risk Assessment based on the ANSI A-300 Tree Risk Assessment standard and used methodology defined in the International Society of Arboriculture's Best Management Practices for Tree Risk Assessment. I used a probe, rubber mallet, and an IML Resistograph to test for internal decay based on wood resistance. I considered the vehicle and pedestrian traffic on Selva Marina Drive as likely to be impacted if the tree failed. I used a 3-year time frame for this assessment. OBSERVATIONS ❑ Subject tree -The tree is a codominant stem Pignut Hickory(Carya glabra) (19" & 19" d.b.h.)that is approximately 65 feet tall with an approximate 25-foot spread (each). The tree is located in the front of the house in the center of the driveway growing over the street. ❑ Tree Health -This tree is a mature tree that has one dead stem and one stem in good health on a scale of poor, fair, good, and excellent. Trees with heartwood decay will oftentimes still have a canopy in good health but lack the structural integrity to support it. ❑ Defects and areas of concern -A visual examination of the tree reveals one stem is dead with necrotic leaves and evidence of wood bores at the base of the trunk. The second stem has phototropic growth (lean) over the street. There is a wound on the trunk at approximately 15'with signs of brown rot and also a cavity at the root flare indicating decay/hollowness. An internal decay test, done at approximately 12" above ground level determined the trunk has a significant amount of heartwood decay. The main concern is the load (weight)of the lean on this defect (heartwood and trunk flare decay). The phototropic growth also leans in the direction of prevailing seabreeze winds. ANALYSIS ❑ Primary Concern -The primary concern for this tree is dead limb failure on the dead stem. Given the location and size of the tree/limbs and the frequency of passing vehicles and pedestrians this tree is categorized as a HIGH risk of failure creating potential significant damage/injury. ❑ Additional Concern -Additionally, the load on the decayed trunk and trunk flare due to the phototropic growth poses a HIGH risk of whole tree failure. RISK RATINGS EXPLAINED What does HIGH RISK for the vehicles and pedestrian traffic mean? Risk ratings are composed of three parts. My assessment determined that within the 3 year time frame: 1. The likelihood of failure is probable. 2. The likelihood of hitting a target is high. 3. The consequences or damage of failure would be significant. RISK TOLERANCE Risk tolerance is the amount of risk you are willing to accept. Different people have different levels of risk they are willing to accept. You will have to decide your own risk tolerance and decide on a course of action for this tree. RISK MITIGATION OPTIONS There are a few options that can be considered for mitigation: 1. Use reduction (preferred)or heading cut to remove 50% of the leaning tree. This would require 50% of the main leader to be removed to reduce the overall length and weight of the canopy. With this pruning, the residual risk rating would become MODERATE. 2. Complete tree removal will mitigate to a level of NO RISK. 3. Do nothing and continue to monitor the tree with regular inspections. REINSPECTION If this tree is not removed, it should be re-inspected every 6 months unless you have additional health or safety concerns that warrant more frequent attention. The tree inspection service should be performed by an ISA Tree Risk Qualified (TRAQ) arborist skilled in the science of tree risk assessment. I can perform this service if needed. ASSUMPTIONS AND LIMITING CONDITIONS My inspection was a ground-based visual inspection with the use of an IML Resistograph, rubber mallet, and probe. The inspection is limited to what can be observed from the ground. There may be defects below ground or in the canopy that were not visible from this perspective. These hidden defects may result in failure of branches, trunks, or roots. No other trees were inspected other than the one addressed in this report. Respectfully, Brad Bushor ISA Certified Arborist, FL-5743A Tree Risk Qualified Prescription Pruning Qualified TM ♦ Eugene Bushor SO-0588A♦ Brian Bushor FL-5239A♦ Brad Bushor FL-5743A T.R.A.Q. ._��/µms' 'xr;�a-yu a. „�•,•�T.�' - R. ;� � - .. � � A, a i f Aq le - ;Ci�moi.^ �•�. .��� u t r: 3 . � S • r ry = jk JTI PI Al r+ or Yr