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TABLE 2 LIST OF LABORATORY ANALYSES AND SAMPLE CONTAINERS US CAN-WELTY ROAD Vernalis,San Joaquin County,California Hold Time Analysis Name Anah'tical Method (days) Preservative Container ('omit Soil TPHe SW-846 Method 8015B 7' None Brass/stainless sleeve;acetate liner:or glass I BTEX SW-846 Method 8260B 14 None Brass/stainless sleeve;acetate liner;or glass I PAHs SW-846 Method 8270C SIM 7' None Brass/stainless sleeve;acetate liner;or glass I Groundwater TPHd SW-846 Method 80I5B 71 None 500 mL amber glass 2 BTEX' SW-846 Method 8260B w/25 mL purge 14 HCL 40 mL VOA glass 3 PAHs'' SW-846 Method 8270C LVI 71 None I L amber glass 2 TDS EPA Method 160.1 7 None 500 mL round plastic 4 Chloride EPA Method 300.0 28 None 1000 mL round plastic 2 Sulfate EPA Method 300.0 28 None 1000 mL round plastic 2 Nitrate as Nitrogen EPA Method 300.0 48 hrs' None 500 mL round plastic 4 Nitrite as Nitrogen EPA Method 300.0 48 his' None 500 mL round plastic 4 Specific Conductance EPA Method 120.1 28 None 500 mL round plastic 4 Kjeldahl Nitrogen(351.3) EPA Method 351.2 28 H2SO41 L round glass 2 Phosphate EPA Method 365.1 28 H2SO4 125 mL glass 2 Ammonia as N(350.2) EPA Method 350.2 28 H2SO, 1000 mL round glass 2 Alkalinity(as CaCO3) SM 20 2320B 14 None 1 L poly 2 Bicarbonate(as CaCO3) SM 20 2320B 14 None included with above included with above Carbonate(as CaCO3) SM 20 2320B 14 None included with above included with above Hardness(as CaCO3)' SM 18 23408 7 HNO3 250 mL poly 2 Boron° EPA Method 200.7 6 months UN03 500 mL poly 2 Sodium' EPA Method 200.7 6 months HNO3 included with above included with above Calcium' EPA Method 200.7 6 months HNO3 included with above included with above Iron' EPA Method 200.7 6 months HNO3 included with above included with above Ma esiurr° EPA Method 200.7 6 months HNO3 included with above included with above Man anesc' EPA Method 200.7 6 months HNO, included with above included with above Potassium' EPA Method 200.7 6 months HNO, included with above included with above Abbreviations: BTEX=Benzene,toluene,ethylbenzene,and total xylenes CaCO3=Calcium carbonate EPA=U.S.Environmental Protection Agency HCL=Hydrochloric acid to pH of 2 UN03=Nitric acid to pH of 2 HIS04=Sulfuric acid to pH of 2 LVI=Large volume injection L=Liter mL=Milliliter PAHs=Polycyclic aromatic hydorcarbons SM=Standard method SW=Solid waste SW-846=EPA publication Test Methods jorEvaluating Solid Waste,Physical/Chemical Methods TDS=Total dissolve solids TPHe=Total petroleum hydrocarbons quantified as crude oil,C 10-C36 TPHd=Total petroleum hydrocarbons quantified as diesel,C ta-C,3 VOA=Volatile Organic Analyte Notes: 1.Because the hold time for Method 8015B and Method 8270C is 7 days,samples most be shipped same day to Lancaster,or delivered to Lancaster's Richmond office by 4:00 p.m.for overnight delivery to Lancaster in Pennsylvania. 2.As indicated above,SAIC will request that Lancaster analyze groundwater samples for BTEX using SW-846 Method 8260B with a 25-mL purge and for PAHs using SW-846 8270C with LVI,to obtain low detection limits. Low detection limits enable use of results in a risk assessment and comparison to the lowest screening levels for delineation 3.As hold time for nitrate-nitrogen and nitrite-nitrogen is 48 hours,groundwater samples must be shipped same day to Lancaster early in week,so samples arrive before Friday. 4.Groundwater samples tested for hardness,boron,calcium,sodium,von,magnesium,manganese,and potassium must be filtered in the field. Page 1 of 1