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Stantec <br /> Further Assessment Work Plan <br /> Stockton Charter Way Commingled Plume <br /> February 15, 2011 <br /> chemical parameters as recommended in the SCM (Stantec, 2011) and as required by the <br /> RWQCB-CVR General Waste Discharge Requirements for in-situ groundwater remediation. <br /> The chemical analytical data will provide baseline parameters and help evaluate the feasibility of <br /> remedial alternatives for the Stockton Charter Way Commingled Plume. The following table <br /> summarizes the additional groundwater analyses and laboratory methods. <br /> Table 2.3.2: List of additional groundwater analytes and method <br /> Constituent Method <br /> Total Dissolved Solids SM 2540C <br /> Total Organic Carbon SM 5310D <br /> Orthophosphate SM 4500P <br /> Anion Scana EPA 300.0 <br /> Ammonia as Nitrogen SM 4500-NH3 <br /> Chemical Oxygen Demand SM 5220D <br /> Biochemical Oxygen Demand SM 5210B <br /> Alkalinity SM 2320B <br /> pH EPA 9040B <br /> Hexavalent Chromium EPA 7199 <br /> Total Mercury EPA 7470A <br /> Ferrous Iron SM 3500-FeD <br /> ICP Metals - TAL 23b EPA 200.7 <br /> Aerobic Heterotrophic Plate Counts SM 9215B(M) <br /> Oxidation Reduction Potential Field meter <br /> Dissolved Oxygen (no headspace) Field meter <br /> Notes: <br /> a=bromide,chloride, nitrate, nitrite,orthophosphorus,and sulfate <br /> b = aluminum (Al), antimony (Sb), arsenic (As), barium (Ba), berylium (Be), boron (B), cadmium (Cd), calcium (Ca), chromium <br /> [Cr(t)],cobalt(Co),copper(Cu), iron(Fe), lead(Pb),magnesium (Mg), manganese(Mn), molybdenum(Mo), nickel (Ni), phosphorus <br /> (P), potassium (K),selenium (Se), silicon (Si),strontium (Sr),silver(Ag), sodium(Na),tin(Sn),titanium(Ti),thallium (TI),vanadium <br /> (V),zinc(Zn) <br /> 3.0 WELL DECOMMISSIONING <br /> 3.1 Site-Specific Health and Safety Plan <br /> As required by the Occupational Health and Safety Administration (OSHA) "Hazardous Waste <br /> Operations and Emergency Response" guidelines (29 CFR 1910.120) and by California <br /> Occupational Health and Safety Administration (Cal-OSHA) "Hazardous Waste Operations and <br /> Emergency Response" guidelines (CCR Title 8, Section 5192), the contractor will prepare a site- <br /> specific Health and Safety Plan (HASP). At a minimum, the HASP will define the proposed <br /> subsurface investigation activities, describe physical and chemical hazards that may be <br /> associated with the work, provide a map to the nearest emergency medical facility, and include <br /> material safety data sheets for hazardous chemicals that will be used or produced during the <br /> Stockton Charter Way Commingled Plume Further Assessment Work Plan.doc 6 <br />