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Generator Permit good through December 2010 was also on file. Several violations were noted in 2004, including recordkeeping violations, on-site storage of hazardous waste over 180 days, and drum labeling violations. Two UST Unauthorized Release forms were on file, one from 1991 involving crude motor oil and one from 1986 involving petroleum hydrocarbons noted during the removal of a 550-gallon tank; the paperwork from 1991 requests further site assessment to determine the nature and extent of contamination. Records from 1991 indicate that one 10,000-gallon and one 16,500- gallon fuel oil tank were removed or closed in place. Based on Public Health Services correspondence in the file from 1992 and 1993, it appears access to the impacted area was limited. Contaminated soil was left in place at this facility after a leachability test was performed to assess the threat to groundwater quality; the test indicated that the contamination would not become mobile under normal site conditions. The consultant reports on which Public Health Services based its decision were not available for review. Live Oak could not determine the location, nature, or extent of the contaminated soil. Additionally, it is unclear whether all leaking USTs at the facility were addressed by the decision. Live Oak reviewed the EHD's Water Well Data Table dated March 10, 2009 for nearby addresses that have been tested for nitrate and dibromochloropropane (DBCP). One nearby well was identified just over one-quarter mile from the Site. DBCP was detected in the well at a concentration of 1.9 parts per billion (ppb). Nitrate as NO3 was detected in the well at concentration of 74 parts per million (ppm). The Maximum Contaminant Level (MCL) set by the US EPA for nitrate as NO3 is 45 ppm; the MCL for DBCP is 0.2 ppb. 7.3 Office of Emergency Services Databases The San Joaquin County Office of Emergency Services (OES) Hazardous Materials Management Program (HMMP) Compliance Website was searched on March 10, 2011. No records were identified for the Site address. Michelle Halliwell of the OES was interviewed by telephone on March 3, 2011. She indicated at this time that no hazardous materials incident reports are on file in the OES database for the Site address or nearby addresses. 7.4 Agricultural Commissioner's Records The San Joaquin County Agricultural Commissioner's Office was contacted regarding agricultural use of the site. Chemical permit maps were identified for the Site under the names of Dave Paddack (western third), Randy Paddack (central third), and Jerry Paddack (eastern third). These records show the Site to be almonds from 2006 through 2010; it appears the maps were not updated when the trees were removed. Chemical use reports were identified for the western and eastern thirds of the Site only, and only for the year 2006. No violations were identified. LOGE 1109 Page 5