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December 14, 2020 Project No. 20-6235 Page 11 AdvancedGeo Au Employee-Myned Company 3.3. STANDARD ENVIRONMENTAL RECORD SOURCES A computer search of federal, state and regional regulatory agency databases was performed by Environmental Data Resources Inc. (EDR), a data retrieval company, to identify and locate properties in areas of concern that have been reported as sites known or suspected to contain underground storage tanks, or to have been the scene of hazardous materials spills. Additionally, sites permitted to manufacture, utilize, generate, store, treat or dispose of hazardous materials and/or hazardous wastes are identified and located. A list and description of databases investigated, in compliance with ASTM E1527-13 and USEPA AAI, is included in EDR Report provided in Appendix C. 3.3.1. SUBJECT PROPERTY DATABASE SEARCH The property address 3009 Pock Lane, Stockton, California, was not listed on any governmental databases within the EDR Report. 3.3.2. SITE VICINITY DATABASE SEARCH Sites with recognized environmental conditions surrounding the subject property are typically of concern to the subject property when they are located in an up -gradient direction from the property with respect to the ground water flow direction. Typically, groundwater would represent the migration medium for contaminants over significant distances. Sites located in equi-gradient or down -gradient directions from the subject property are less likely to impact the subject property. AGI retained EDR to provide current regulatory database information compiled by a variety of federal and state regulatory agencies. A copy of the complete database is included in Appendix C. The following information was obtained: Regulatory Agency Appropriate Minimum Number of Sites within Database Search Distance AMSD AMSD RCRA - Non Generators / No 0.25 3 Longer Regulated Leaking Underground Fuel Tank 0.5 5 Report (GEOTRACKER) Hazardous Substance Storage 0.25 3 Container Database "Cortese" Hazardous Waste & 0.5 5 Substances Sites List CERS HAZ WASTE 0.25 1 EnviroStor Database 1 6 Proposition 65 Records 1 1 Hazardous Waste & Substance Site 0.5 4 List AGI's review of the referenced databases also considered the potential or likelihood of contamination from adjoining and nearby sites. To evaluate which of the adjoining and nearby sites identified in the regulatory database report present an environmental risk to the subject property, AGI considered the following: • The type of database on which the site is identified; • The topographic position of the identified site relative to the subject property; • The direction and distance of the identified site from the subject property;