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Nationwide Insurance,- Center for Radiation Oncology, 7315 Green Slope Drive, Zephyrhills, FL Lab No.. 190442 Page 15 under the direction and supervision of both a Professional Engineer licensed in the State of Florida whose field of expertise is geotechnical engineering and a Professional Geologist licensed in the State of Florida who has geological experience and expertise in the identification of sinkhole activity. Both the engineer's and geologist's signatures and seals with Florida Registration Numbers appear on the report. We certifY that it is our professional opinion, based on the data generated by this investigation, that there is evidence of sinkhole activity occurring under the property and that it cannot be eliminated as a possible cause of damage. The analysis conducted, in our opinion, was of sufficient scope to identifY sinkhole activity as a possible cause of the damage described within a reasonable professional probability. Limitations The geotechnical investigation and report deals only with the soil zones and strata located within the area represented from the ground surface to the termination depth of the boring. It is not intended to predict or accept responsibility for sinkhole development, but rather, to define the soil profile consistent with determining if sinkhole related activity is present under the property. This determination of activity cannot construct a time frame to past action or predict a time period to future activity. Generally accepted soil mechanics and foundation engineering practices were utilized in the preparation of this report; and no other warranty, either expressed or implied is made as to the recommendations provided. This report is for the exclusive use of our client and may not contain sufficient information for other uses, such as quantity take-offs, or for interpretation by other parties for bidding purposes. In the event others make conclusions and/or recommendations based on our data, such conclusions and/or recommendations are not our responsibility unless we have been given an opportunity to review and concur with them. If borings were not staked by a registered land surveyor but were located by our drill crews, the following method was used: Distances are generally measured using a 200 foot tape measure with right angle approximation used to turn comers. Scaling from prints or surveys with reference points shown on the plan or geographical references will produce a degree of accuracy that is typically + 5% for length and + 10 degrees for angles. Soil strata delineations are estimated in the field by color changes, texture differences and penetration resistance values. These may be more gradual transitions than those shown on the boring log representations of strata delineations. The ground water depth determination shown on the left side of the boring log was measured in the borehole at the time of drilling, unless noted otherwise. This depth does not reflect seasonal high water levels and would fluctuate as expected with variations in rainfall or other factors not present at the time of our soils investigation. Central Florida Testing Laboratories, Inc. 12625 - 40th Street North, Clearwater, FL 33762