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DEPARTMENT OF TOXIC SUBSTANCES CONTROL <br /> PEA Comments <br /> for the <br /> Lockeford Elementary School Expansion Site <br /> GENERAL COMMENT <br /> DTSC concurs with the recommendation for removal of TPH-impacted soil on the site, <br /> particularly, in the vicinity of PEA samples SG-14 and SG-20. Maximum TPH sample <br /> results for these areas are 3,760 mg/kg and 2,850 mg/kg, respectively. <br /> While DTSC recognizes the elevated levels of TPH do not drive a significant health risk <br /> and do not present a fate and transport concern, based on guidance provided by the <br /> DTSC TPH Working Group, DTSC concurs that TPH removal is warranted based on <br /> aesthetic criteria (ie, visual contamination, odor). TPH-impacted soil should be <br /> removed to eliminate the visual contamination that might be encountered during site <br /> development. By removing this impacted soil, it is less likely to generate concerns from <br /> workers, staff, students, and community members <br /> Removal of the TPH-impacted soil is recommended as part of the construction phase of <br /> the project. All soil containing greater than 1,200 mg/kg of TPH should be removed <br /> from the site and disposed off-site pursuant to all applicable waste-disposal regulations. <br /> DTSC COMMENTS ON LOCKEFORD ELEMENTARY SCHOOL EXPANSION <br /> LODI UNIFIED SCHOOL DISTRICT <br /> PEA FOR PUBLIC REVIEW <br />