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Hazardous Materials Program Inspection report from 2022 indicated only recordkeeping violations. A Small Quantity Hazardous Waste Generator Inspection Report from 2022 indicated that several empty plastic drums had not been labeled "empty;" Return to Compliance documentation was on file. A complaint from 2021 alleged the presence of "abandoned tractors, oil containers, pesticides containers leaking everywhere"; the complaint had a status of "unable to verify complaint." A Masterfile Record Information Form from 2009 indicated that three aboveground storage tanks/containers were maintained at the Site, a 500 -gallon diesel tank, a 500 -gallon gasoline tank, and 55 -gallons of waste oil. A similar document from 2022 indicated five tanks/containers; no details were provided. These records have been included in Appendix 5 of this report. Well & Septic Permits Live Oak reviewed the San Joaquin County Environmental Health Department well and septic permit files for the Site addresses of 22770, 22844, and 23050 South Frederick Avenue, Ripon. Six permits were identified: • February 1990 permit for new septic system at mobile home. The system utilized a 1,200 -gallon tank and three 80 -foot leach lines. • April 1975 permit for new domestic well at southern house. The grout seal was reportedly placed at 50 feet. • November 1975 permit for new residential septic system at southern house. The system utilized a 1,600 -gallon tank and two filter beds. • February 2012 permit for new replacement domestic well at southern house. The proposed depth was 240 feet, and the grout seal was placed at 100 feet. • July 2014 permit for pump replacement at domestic well at southern house. The standing water level was listed as 30 feet. • October 2015 permit for pump replacement at domestic well. The standing water level was listed as 30 feet. The attached notes discussed the lack of a concrete platform around the wellhead and the lack of a sampling tap. These permits have been included in Appendix 4 of this report. 7.0 GOVERNMENT AGENCY RESEARCH 7.1 EPA Databases The California Environmental Protection Agency (EPA) manages contaminated sites through two sub -agencies: the State Water Resources Control Board (SWRCB) and the Department of Toxic Substances Control (DTSC). The SWRCB's GeoTracker database includes underground storage tank (UST) sites, leaking underground storage tank (LUST) sites, cleanup program sites, and land LOGE 2232 7