SR2602180 - Laserfiche WebLink

Home Browse Search

August 19, 1999. The USTs, product piping and dispensers are continuously monitored by a Veeder Root In Station Diagnostics (ISD) system. The most recent Secondary Containment Test and Monitoring System Certification were completed on March 4 and June 25, 2025, respectively, which indicated that all UST systems passed the tests. According to California Environmental Protection Agency (CaIEPA) records, there are numerous open violations that were reported during the 2024 inspection. The violations included a lack of a hazardous material business plan, inadequate or missing emergency response procedures, propane and carbon dioxide not identified in CERS [California Environmental Reporting System] documentation, incomplete site map, missing training documentation, incomplete hazardous waste container labeling, no posted modified contingency plan, no accumulation start date on waste gasoline drums, no written response to a 2021 inspection, an unleaded gasoline spill container test failure and lack of an operating permit between January and February 2024. Based on the age of the UST systems (over 26 years), the potential exists that the subsurface has been impacted by releases from the UST systems. According to available documentation from State Water Resources Control Board's (SWRCB) GeoTracker website and San Joaquin County Environmental Health Department (SJCEHD), it does not appear that a subsurface investigation or groundwater sampling has been conducted at the subject property since LUST case closure was granted on February 22, 2011. Therefore, the continued operation of the existing UST system and associated storage of petroleum products on-site in connection with the gas station operation is considered a REC." Based on available information from previous subsurface investigations conducted at the subject property, groundwater beneath the subject property is anticipated to be first encountered at a depth of approximately 8 to 18 feet bgs with inferred flow direction to the east-northeast. The subsurface is expected to consist of a varying combination of clay, silt, and sand from the ground surface to at least 20 feet bgs. Objective The objective of the project will be to evaluate the current impact of petroleum hydrocarbon and volatile organic compounds (VOCs) to soil and/or groundwater as a consequence of a release or releases from the current on-site UST system and associated fuel dispensers. To investigate the identified REC, Partner will conduct a Phase II Subsurface Investigation. The investigation scope will include the advancement of five borings to facilitate the collection and analysis of soil and/or groundwater samples. Refer to the attached map for proposed sample locations. Scope Sampling procedures will generally conform to the requirements of the SJCEHD, the SWRCB, the Department of Toxic Substances Control (DTSC), and/or the United States Environmental Protection Agency (EPA). A state-certified laboratory will analyze the samples and the project will be performed under the responsible charge of a California licensed Professional Geologist(P.G.). Laboratory results will be compared to San Francisco Bay Regional Water Quality Control Board (RWQCB) Environmental Screening Levels (ESLs). Page 2 PARTNER