ARCHIVED REPORTS_2021 CURRENT CONDITIONS RPT

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apparent from the air photos and exposure of glass and minor debris, currently observed at the surface of the Property. Based on the shape of the potential waste disposal, which images as a light color in the air photos and dark color of vegetation apparent in the air photos, no waste of significant quantities apparently reside under the former gas fired power plant footprint or area. Air photos from 1963 to 2012 are included in Attachment B. General Plant Operations The San Joaquin Cogen power plant operated as a simple cycle power plant producing electricity and ancillary services for dispatch and sale. The Property consisted of the 48-megawatt gas fired power plant which was enclosed by a berm and chain link fence and adjoining or adjacent to vacant land. The generation facility operation started around 1990 and used a natural gas-fed combustion turbine to provide electrical power to the region during peak usage periods. When the SJC Facility was operational, several locations on the Property were used for operations. Drinking water for the Property was delivered in bottles. Water for the plant was supplied to the SJC Facility by the City of Lathrop and wastewater was piped into a vault, tested prior to discharge, and then pumped into the municipal sewer system. Solid waste generated by the SJC Facility on the Property was removed by contracted carriers. Storm water that fell on the Property was channeled to a collection pond located on the south edge of the operating portion of the Property. An abandoned injection well location was located at the southeast corner of the operations area and was believed abandoned by previous owner. On January 1, 2013, the SJC Facility went into Reserve Shutdown (“RS”). This is an event where a unit is available for load but is not synchronized due to lack of demand. This type of event is sometimes referred to as an economy outage or economy shutdown. While the unit was on RS, maintenance work was performed. The SJC Facility was never operated after it was declared in RS status. From the July 10, 2007 acquisition date to the date of RS, the Property was used consistent with power generation operations and there were no recordable spills involving chemicals or petroleum products at the Property. In addition, all chemicals and petroleum products that were maintained and used at the Property were consistent with power generation operations. No equipment suspected of containing polychlorinated biphenyls (“PCBs”) has been used on the Property. The Property was not used as an on-site landfill and any solid and liquid wastes produced through business operations were disposed of in accordance with permits and laws. In the southern portion of the Property in the open field, there is aged, weathered, broken glass, which can be viewed from both aerial and satellite photography. This material was present when the Property was acquired in 2007. When HPH acquired the Property in 2007, it had no direct or observable knowledge of how the Property was used, if any, by Libby Owens Ford/Pilkington North America (LOF), the company that had previously owned the glass manufacturing facility on an adjacent property. However, it is noted in the B&V Phase I ESA report that an employee of LOF was interviewed and had confirmed that wastewater from the LOF facility was discharged on the Property under a wastewater permit with the State Water Resources Control Board. In addition,