Laserfiche WebLink
L & M OPERABLE UNIT- FIRST QUARTER 2012 SITE STATUS, REMEDIAL SUMMARY, <br />AND GROUNDWATER MONITORING REPORT <br />Groundwater Monitoring and Sampling <br />April 30, 2012 <br />I:\Tidewater\TW Stockton (P2A)\QMRs\2012\1Q12\1Q12 QSSR QRSR QMR Stockton_FINAL.doc 2.10 <br />2.4.2.3 Volatile Organic Compounds <br />VOCs with concentrations at or above the MRLs are summarized below. <br />Constituents <br />Number of <br />Detections <br />above the <br />MRL <br />Number <br />of B-Zone <br />Wells <br />Analyzed <br />Minimum Detected <br />Concentration in <br />mg/L (Well ID) <br />Maximum <br />Detected <br />Concentration in <br />mg/L (Well ID) <br />n-butyl benzene 1 15 -- 0.0022 (MW-58) <br />tert-butyl benzene 2 15 0.00057 (MW-58) 0.00081 (MW-29) <br />sec-butyl benzene 2 15 0.0012 (MW-59) 0.0038 (MW-58) <br />Isopropyl benzene 3 15 0.0017 (MW-59) 0.022 (MW-58) <br />p-isopropyl toluene 1 15 -- 0.00052 (MW-58) <br />n-propyl benzene 3 15 0.0011 (MW-42) 0.014 (MW-58) <br />1,3,5-tri-methyl benzene 1 15 -- 0.001 (MW-58) <br />Definitions: <br />ID = Identification <br />mg/L = Milligrams per liter <br />MRL = Method reporting limit <br />-- = Not applicable <br />2.4.2.4 Semi-volatile Organic Compounds <br />There were no SVOCs with concentrations at or above the MRLs in the 15 B-Zone wells <br />sampled during 1Q12. <br />2.4.2.5 Dissolved Metals <br />Dissolved metals with concentrations detected at or above the MRLs are summarized below. <br />Constituents <br />Number of <br />Detections <br />above the <br />MRL <br />Number <br />of B-Zone <br />Wells <br />Analyzed <br />Minimum <br />Detected <br />Concentration in <br />mg/L (Well ID) <br />Maximum <br />Detected <br />Concentration in <br />mg/L (Well ID) <br />Arsenic 12 15 0.0066 (MW-35) 0.087 (MW-59) <br />Nickel 1 15 -- 0.0050 (MW-60) <br />Zinc 3 15 0.012 (MW-57) 0.11 (MW-24) <br />Definitions: <br />ID = Identification <br />mg/L = Milligrams per Liter <br />MRL = Method Reporting Limit <br />-- = Not Applicable