Laserfiche WebLink
Supplemental Site Investigation Scoping Document - <br /> Pittman Elementary School,Stockton,California <br /> January 23,2004 <br /> Page 3 <br /> Table 1 —Summary of PEA Sam In2 and Analyses <br /> Sampling Scheme Location Depth Matrix Number of Samples Analyzed Constituents <br /> 15 Organochlorine Pesticides <br /> 0-0.5 feet bgs soil 15 surface 5 CAM 17 Metals <br /> 4 Arsenic <br /> 1 location per 1-acre(14.5 acres) 4 Hexavalent Chromium <br /> 1—Lawn Area 1 Organochlorine Pesticides <br /> 2-2.5 feet bgs soilIS deep 2 CAM 17 Metals <br /> 2 Arsenic <br /> I Hexavalent Chromium <br /> Background samples 0-0.5 feet bgs soil g surface 8 CAM 17 Metals and Hexavalent Chromium <br /> 8 Houses(4 per building) 0-0.5 feet bgs soil -e 33 33 Lead <br /> 2-2.5 feet bgs soil - 33 10 Lead <br /> 6 Garages/Sheds(4 per building) 0-0.5 feet bgs soil 23 23Lead <br /> 2-2.5 feet bgs soil 23 9 <br /> Lead <br /> Sewage Screening Station 4 0-0.5 and 2-2.5 feet b s soil 4 shallow,4 dee (held) 4 Lead <br /> 0-0.5 feet bgs soil 4 _ 4 Lead - <br /> 2-Structure Driplines Warehouse Buildings(7) 2-2.5 feet bgs soil 4 3 Lead <br /> Paint chip 3 3 Lead <br /> Rehab Center(7) 0-0.5 feet bgs soil 7 7 Lead <br /> 2-2.5 feet bgs soil 7 5 Lead <br /> 0-0.5 feet bgs soil 4 4 <br /> Della Center(4) Lead <br /> 2-2.5 feet bgs soil ; 4 2 Lead <br /> Second Samples 0-0.5 feet bgs soil 2 2 Lead <br /> 2-2.5 feet bgs soil 2 1 Lead <br /> 3—Natural Gas Field I location per 1-acre(14.5 acres) 10 feet bgs soil as 15 15 Methane and Hydroen Sulfide <br /> 20 feet bgs soil as 15 15 Methane and Hydro en Sulfide <br /> 4 Eastern UST Farm 4 borings 5 and 1S feet bgs soil as 8 8 Volatile Organic Compounds OCs <br /> 40 feet bgs oundwater 4 4 <br /> 5—Northern UST Farm 4 borings 5 and 15 feet bgs soil as 8 8 VOCs <br /> (Soil Gas Anomaly) 40 feet bgs groundwater 4 - d4 <br /> 7 PCB 2 locations downgradient on pad per switching 0-0.5 abgs so <br /> nd 2-2.5 feet bil 8 surface(held 8 flee <br /> station 4 stations p) 8 PCBs <br /> 2 locations at PG&E substation 0-0.5 and 2-2.5 feet bgs soil 2 surface held 2 dee ) 2 PCBs <br /> 8—Hydraulic Elevator I hydraulic oil sam le NA roduct 1 1 PCBs <br /> 0 <br /> O <br /> Z _ <br /> O , <br /> 0 <br />