180-173560-1_BattelleCorp.xls

This file is a laboratory analytical results spreadsheet containing environmental testing data from Battelle Corporation for soil and water samples collected from the Cheesequake Creek East area as part of the jetty rehabilitation project. The testing was conducted between May 8 and June 7, 2024, on two primary soil composite samples (Composites B and C) and one amended water sample, with analysis performed using EPA standard methods including dioxin/furan analysis (Method 1613B), metals analysis (Method 6020B), pesticide analysis (Method 8081B), PCB analysis (Method 8082A), herbicide analysis (Method 8151A), volatile organic compounds (Method 8260D), and semi-volatile organic compounds (Method 8270E).

The results document baseline environmental conditions with detection of various heavy metals including aluminum (2,000-4,400 mg/kg), chromium (17-57 mg/kg), manganese (31-230 mg/kg), lead (8.3-14 mg/kg), and zinc (17-140 mg/kg) at varying concentrations across samples. Dioxin and furan levels were measured with total toxic equivalency values ranging from 0.19 to 0.72 pg/g, and PCB concentrations detected at trace to low levels. Most volatile organic compounds and pesticide analyses returned non-detect or below-detection-limit results, with quality assurance measures including surrogate recoveries and method blanks documented throughout. The data serves as environmental characterization baseline for the Department of the Army Corps of Engineers New York District's Cheesequake Creek East Jetty Rehabilitation project (W912DS26BA031).