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Subsidence Investigation SDII Project A umber•3023547 Quiros-Martinez Residence-Zephyrhills,Florida � This final report was prepared to summarize the results of the field irivestigation and structural assessment. This report provides conclusions concerning th�e existence of sinkhole activity as defined by Florida Statutes and the cause of the rep��rted damage to the structure. 1.3 De�nitions In 2005 and 2006, the Florida Legislature revised §627 Florida Statutes, including the sections that pertain to sinkhole definitions and investigations. SDII adheres closely to these definitions and protocols when investigating sinkhole claims. Specifically, §627.706 F.;�i. includes the following definitions, which are utilized by SDIi in determining the causes c;f dainage to a structure. According to §627.706 F.S., a "'Sinkhole' means a landform created by subsidence of soil, sediment, or rock as underlying strata are dissolved by groundwater. A sinkholE� may form by collapse into subterranean voids created by dissolution of limestone or dc;�lostone or by subsidence as these strata are dissolved." A "'Sinkhole loss' means structural damage to the building, including the founda.�ion, caused by sinkhole activity." "Sinkhole activity", as defined by §627.706 F.S., "means settlement or systematia; weakening of the earth supporting such property only when such settlement or systematic weakening results from movement or raveling of soils, sediments, or rock materials into subterranean voids created by the effect of water on a limestone or similar rock formation." In a.ddition, §627.7072 F.S. cites procedures to follow in a subsidence investigati�on and Florida Geologica] Survey Special Publication No. 57 (SP 57) lists certain protocols anr� investigation methods that have been found to be useful in identifying the causes of damage r.o structures in Florida. The tasks listed in Section 1.2 of this report were specifically chosen to address the conditions described in §627.706 F.S. and protocols described in SP 57 and Ch. 627.707 F.S.. The results of the tasks are presented below, and the methods are explained iri Appendix A, which also cites appropriate standard methods for the tests. 1.4 Site Reconnaissance Legal Description The legal description of the property as provided by the Pasco County Property Appraiser's website is: ZEPHYR HEIGHTS 1 ST ADDITiON PB 8 PG 21 LOT 13 BLOCK �! OR 5902 PG 669. General Site Observation The structure is a singie-family home iocated at 54l 1 Tangerine Drive in Zephy rhills, Florida (Figure 1). According to information provided by the Pasco County Property Appraiser's 1-2