Laserfiche WebLink
<br /> <br />Current Conditions Report <br />Former SAN JOAQUIN COGENERATION <br />17200 Murphy Parkway, Lathrop, San Joaquin County, California <br />(APN 198-120-05) <br /> <br /> <br />EXECUTIVE SUMMARY <br /> <br />The former San Joaquin County Cogeneration property is located at 17200 Murphy <br />Parkway, Lathrop, California (Site or subject property). The location of the Site, <br />surrounding properties and general setting is illustrated on the Lathrop topographic map <br />(7.5 Minute United States Geological Survey (USGS) Topographic Series, California). <br />The map shows the property located at an elevation of approximately 15 feet above mean <br />sea level in an area of low topographic relief. The site consists of a 10.01-acre parcel <br />identified as San Joaquin County Assessor Parcel Number (APN) 198-120-050. <br /> <br />The Site is zoned for general industrial use (IG). Between 1990 and 2013, a gas fired <br />power plant operated in the northern portion of the Site. The power plant was shut down <br />in 2013 and did not operate again before it was demolished in 2017. According to San <br />Joaquin County Assessor information, the property is currently owned by San Joaquin <br />Cogen, LLC ETAL. <br /> <br />The subject property was previously owned by Libby Owens Ford/Pilkington North <br />America (LOF/PNA) that operated a plant to the north of the Site at 500 East Louise <br />Avenue. The LOF/PNA facility utilized the property immediately east of the Site, at 17100 <br />Murphy Parkway, and the subject property, to manage/handle and dispose of solid waste <br />generated at the LOF/PNA plant. The solid wastes comprised largely of waste glass <br />materials including glass cullet and glass processing waste. In the 1980s, the parcel was <br />divided creating the 10-acre subject property parcel and the cogeneration facility was <br />constructed in 1989. <br /> <br />The former LOF/PNA facility contained unpermitted landfill cells that resulted in discharge <br />of wastes, including dioxin/furan compounds (dioxins), polychlorinated biphenyls (PCBs), <br />and total petroleum hydrocarbons (TPH) to soil. The only PCB congener detected was <br />PCB Aroclor 1254. These chemicals are considered the constituents of concern (COC) <br />at the Site. Two primary waste cells reported as the North Waste Cell and South Waste <br />Cell were assessed and remediated up to what was thought to be the boundary of the <br />cogeneration parcel. Investigations performed at the subject property in 2019 and 2020 <br />determined that both waste cells continued onto the subject property (Waste Cell No. 1 <br />and 1A), to the south of the former power plant. Additionally, the investigations identified <br />two distinct waste cells (Waste Cell No. 2 and 2A), and isolated areas of waste, beneath <br />the central and southern areas of the former power plant. The waste cells are composed <br />of glass processing waste, and not glass cullet, disposed on the subject property by the <br />former LOF/PNA facility. <br /> <br />There are two Areas of Concern (AOCs) at the Site: 1) the area along the eastern property <br />boundary, south of the former power plant (East Property Boundary or AOC1); and 2) the