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Revised Work Plan – Mitigation of Trash and Debris from Private Property Site <br />Private Property – 19133 East Liberty Road, Clements, California May 26, 2023 (Rev June 27, 2023) <br />Project No. 21-899 <br /> <br /> <br />1 <br /> <br />1.0 INTRODUCTION <br /> <br />This Revised Work Plan discusses the mitigation actions that are considered necessary <br />for the removal of trash and construction/demolition debris described in the Site <br />Characterization Report (Sharp Environmental, 2021). Specifically, this Revised Work <br />Plan describes the procedures for the excavation, screening, confirmation sampling, <br />stockpiling, loading, transportation and disposal of trash and debris at the Private <br />Property located at 19133 East Liberty Road, Clements, California (the Site). <br /> <br />Initially, a Work Plan dated August 31, 2022 was prepared in response to comments from <br />the San Joaquin County Environmental Health Department (EHD) in their November 12, <br />2021 inspection report (Appendix A) following their review of the Phase II Subsurface <br />Soil Investigation. The EHD noted Hayward Environmental plans to remove the site <br />debris including documentation of debris disposal. The inspection report states after the <br />Area of Concern (AC) is mitigated, the EHD will remove the AC comment in future <br />inspection reports. The intent of the work proposed in the Work Plan was to close the Site <br />and request the EHD to change the property (Mulhair Disposal Site) status as an <br />unpermitted solid waste disposal site, remove the Site from the Solid Waste Information <br />System (SWIS) database and restore the Site to an unrestricted land use scenario with a <br />clean closure. <br /> <br />The EHD and the Central Valley Regional Water Quality Board (CVRWQCB) reviewed <br />the Work Plan dated August 31, 2022. In letters dated March 14, 2023 and April 4, 2023, <br />the EHD provided comments and additional requirements for the Work Plan. <br />Additionally, in a letter dated March 13, 2023, the CVRWQCB provided comments and <br />additional requirements for the Work Plan. This Revised Work Plan addresses the <br />comments provided by the EHD and the CVRWQCB. Copies of the above-described <br />EHD and CVRWQCB letters are provided in Appendix A. <br /> <br />1.1 SITE LOCATION AND BACKGROUND <br /> <br />The Site is located at 19133 East Liberty Road, Clements, California. The Site is bounded <br />on the north by residential property 19155 East Liberty Road, on the east by residential <br />properties 19199 and 19211 East Liberty Road, and on the south by East Liberty Road. <br />On the south side of Liberty Road is residential property 19412 East Liberty Road. Along <br />the western side of the property is residential property 19019 East Liberty Road and <br />undeveloped land to the west of the Site’s mid to northern west side. Currently there is <br />one residential house on the property and a groundwater well. The Mokelumne River <br />channel is approximately 3,000 feet southeast of the Site. Figure 1 presents a site location <br />map of the subject area. <br /> <br />A Phase I Environmental Site Assessment (ESA) dated July 10, 2020 and prepared by <br />Hayward Environmental Consulting indicated that the property had been previously <br />undeveloped land except for a small structure from approximately 1909 to approximately <br />1936. The current residential structure was built in the late 1970s. A permit for a