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December 14, 2020 d anc edGeo Project No. 20-6235 AnEmpfoyre-OwnedComp�y Page 7 Other No modifications to the ASTM E1527-13 standard scope-of-services were requested by the user for special circumstances that might be encountered at the subject property. Any additional user requested scope of services are discussed in Section 7.0. Failure to provide the above information could result in a determination that 'all appropriate inquiries' are not complete. Additional items should be collected, if available, and provided to AGI. 3.0. RECORDS REVIEW The purpose of obtaining and reviewing subject property and site vicinity historical, physical setting and regulatory records is to help identify recognized environmental conditions in connection with the subject property. 3.1. HISTORICAL USE INFORMATION The objective of consulting historical sources for a Phase I is to develop a history of previous uses of the property and surrounding area to help identify the likelihood of past uses having led to recognized environmental conditions with respect to the property. All obvious uses shall be identified from the present to the property's first obvious developed use, or back to 1940, whichever is earlier. Review of standard sources at less than five year intervals is not required. 3.1.1. Historical Use Information on Subject Property Subject property history was researched by reviewing historical Sanborn Fire Insurance Maps (no coverage), aerial photographs, topographic maps, telephone directory information, the Building Department records, and the San Joaquin County Assessor's Office records. Based on a review of historical documents, the property was used agriculturally from at least 1937 to the early 2000's. A residence was located on the property during the same time period. The property has since been vacant and undeveloped when all structures were removed. The subject property has been vacant and undeveloped since the early 2000's. In summary, review of the historical documents revealed no features on the subject property of environmental concern. Representative historical records are provided within Appendix B. 3.1.1.1. Sanborn Fire Insurance Maps Sanborn Fire Insurance maps were developed in the late 1800s and early 1900s for use as an assessment tool for fire insurance rates in urbanized areas but are now utilized as a valuable source of historical and environmental risk information. EDR owns the largest collection of Sanborn Fire Insurance Maps. AGI requested EDR to provide any Sanborn Fire Insurance Maps that might cover the subject property. Sanborn map coverage was not available for the subject property.