6-24 hours e. Coliform, Fecal and Total W, DW P,G Cool, 4 C, 0.008% Na 2 S 2 O 3. Fecal Streptococci W P,G Cool, 4 C, 0.

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1 Coliform, Colilert, P, Bottle or Bag Cool, 4 C, 0.008% Na 2 S 2 O 3 d Coliform, Fecal and Total, P,G Cool, 4 C, 0.008% Na 2 S 2 O 3 d Fecal Streptococci P,G Cool, 4 C, 0.008% Na 2 S 2 O 3 d INORGANIC TESTS 6-24 hours e 6-24 hours e 6-24 hours e Acidity P,G Cool, 4 C Alkalinity, P,G Cool, 4 C Ammonia, P,G Cool, 4 C, H 2 SO 4 to ph<2 28 days Biochemical Oxygen Demand (BOD) P,G Cool, 4 C Bromate, P,G 50mg/L EDA, cool to 4 C 28 days Bromide, P,G None Required 28 days Chemical Oxygen Demand (COD) P,G Cool, 4 C, H 2 SO 4 to ph<2 28 days Chloride Method 300.0, P,G None Required 28 days Chloride Method 9056, S P,G Cool, 4 C Analyze immediately Chlorine, Total Residual, P,G None Required 15 minutes Chlorite, P,G 50mg/L EDA, cool to 4 C Chlorophyll-A G Amber Cool, 4 C Analyze immediately Chromium VI Method 7196A P,G Cool, 4 C 24 hours Color, P,G Cool, 4 C Cyanide, Total and Amenable to Chlorination, P,G Cool, 4 C, NaOH to ph>12, plus 0.6 g Ascorbic Acid Cyanide, eak Acid Dissociable P,G Cool, 4 C, NaOH to ph >12 Ferrous Iron, G Amber Cool, 4 C 24 hours Fluoride Method 300.0, P,G None Required 28 days Fluoride Method 9056, S P,G Cool, 4 C Analyze immediately Hardness, P,G HNO 3 to ph<2 6 months Hydrogen Ion (ph),, S P,G None Required Analyze immediately Ignitability G None Required Kjeldahl and Organic Nitrogen P,G Cool, 4 C, H 2 SO 4 to ph<2 28 days Nitrate Method 300.0, P,G Cool, 4 C Nitrate Method 353.2, P,G Cool, 4 C, H 2 SO 4 to ph<2 Nitrate Method 9056, S P,G Cool, 4 C Analyze immediately

2 Nitrate-Nitrite Method 353.2, P,G Cool, 4 C, H 2 SO 4 to ph<2 28 days Nitrite P,G Cool, 4 C Orthophosphate Method 365.3, P,G Cool, 4 C Analyze immediately Oxygen, Dissolved (Probe), G, Bottle and Top None Required Analyze immediately Oxygen, Dissolved (inkler), G, Bottle and Top Fix on Site and Store in Dark 8 hours Perchlorate, P,G Protect from temp. extremes 28 days Phenolics, Total G Only Cool, 4 C, H 2 SO 4 to ph<2 28 days Phosphorus, Elemental G Only Cool, 4 C Phosphorus, Total P,G Cool, 4 C, H 2 SO 4 to ph<2 28 days Residue, Total P,G Cool, 4 C 7 days Residue, Filterable (TDS) P,G Cool, 4 C 7 days Residue, Nonfilterable (TSS) P,G Cool, 4 C 7 days Residue, Settleable P,G Cool, 4 C Residue, Volatile P,G Cool, 4 C 7 days Silica P Only Cool, 4 C 28 days Specific Conductance, P,G Cool, 4 C 28 days Sulfate Method 300.0, P,G Cool, 4 C 28 days Sulfate Method 9056 P,G Cool, 4 C Analyze immediately Sulfide P,G Cool, 4 C, Add Zinc Acetate plus Sodium Hydroxide to ph>9 Sulfite P,G None Required 24 hours Surfactants (MBAS) P,G Cool, 4 C Tannin and Lignin P,G Cool, 4 C 28 days Temperature P,G None Required Analyze immediately Turbidity, P,G Cool, 4 C METALS Metals, except CrVI and Mercury 7 days, P,G HNO 3 to ph<2 6 months S G, Teflon-Lined Cool, 4 C 6 months Chromium VI Method 7195 P,G Cool, 4 C 24 hours Mercury P,G HNO 3 to ph<2 28 days Mercury S P,G Cool, 4 C 28 days

3 BACTERIAL ORGANIC TESTS TESTS Oil and Grease, Hexane Extractable Material (EPA 1664) G, Teflon-Lined Cool, 4 C, H 2 SO 4 to ph<2 28 days Organic Carbon, Total (TOC) P,G Cool, 4 C, H 2 SO 4 to ph<2 28 days Organic Halogens, Total (TOX) G, Teflon-Lined Cool, 4 C, H 2 SO 4 to ph<2, No headspace 28 days Organic Halogens, Absorbable (AOX) G, Teflon-Lined Cool, 4 C, HNO 3 to ph<2 6 months Petroleum Hydrocarbons, Total Recoverable G, Teflon-Lined Cool, 4 C, HCl or H 2 SO 4 to ph<2 28 days Petroleum Hydrocarbons, Total G, Teflon-Lined Cool, 4 C, HCl or H 2 SO 4 to ph<2 Petroleum Hydrocarbons, Total S G, Teflon-Lined Cool, 4 C 7 days until extraction; 40 until extraction; VOLATILE ORGANICS Petroleum Hydrocarbons, Volatile (Gasoline- Range Organics) Petroleum Hydrocarbons, Volatile (Gasoline- Range Organics) Purgeable Halocarbons G, Teflon-Lined Septum Cool, 4 C, HCl to ph<2, No S G, Teflon-Lined Cool, 4 C, Minimize No Residual Chlorine Present: HCl to ph<2, Cool, 4 C, No Residual Chlorine Present: 10% Na 2 S 2 O 3, HCl to ph<2, Cool, 4 Cn No Purgeable Halocarbons S G, Teflon-Lined Cool, 4 C, Minimize Purgeable Halocarbons S Method 5035A, G. Teflon- Lined, Septum Freeze at -20 C on site in vial Frozen in coring tool on site Cool 4 C, freeze at lab within 48 hours Cool 4 C, methanol preserved within Cool 4 C in vial Cool 4 C in coring tool Cool 4 C, Sodium Bisulfate Purgeable Aromatic Hydrocarbons (including BTEX and MTBE) No Residual Chlorine Present: HCl to ph<2, Cool, 4 C, No Residual Chlorine Present: 10% Na 2 S 2 O 3, HCl to ph<2, Cool 4 C

4 BACTERIAL Purgeable Aromatic TESTS Hydrocarbons (including BTEX and MTBE) Purgeable Aromatic Hydrocarbons (including BTEX and MTBE) Acrolein, Acrylonitrile, Acetonitrile S G, Teflon-Lined Cool, 4 C, Minimize EDB and DBCP,S G, Teflon-Lined SEMIVOLATILE ORGANICS S Method 5035A, G. Teflon- Lined, Septum Freeze at -20 C on site in vial Frozen in coring tool on site Cool 4 C, freeze at lab within 48 hours Cool 4 C, methanol preserved within Cool 4 C in vial Cool 4 C in coring tool Cool 4 C, Sodium Bisulfate Adjust ph to 4-5, Cool, 4 C, No Cool, 4 C, 3 mg Na 2 S 2 O 3, No 28 days Dioxins/Furans by 8290/8280 G Amber Cool, 4 C 30 days Dioxins/Furans by 8290/8280 S G Cool, 4 C 30 days, if frozen 1 year Dioxins/Furans by 1613B G Amber Cool, 4 C 1 year Dioxins/Furans by 1613B S G Frozen 1 year Coplanar PCBs by 1668A G Amber Cool, 4 C 1 year Coplanar PCBs by 1668A S G Cool, 4 C 1 year Petroleum Hydrocarbons, Extractable (Diesel- Range Organics),S G, Teflon-Lined Cool, 4 C Alcohols and Glycols,S G, Teflon-Lined Cool, 4 C a Phenols,S G, Teflon-Lined Cool, 4 C a Phthalate Esters,S G, Teflon-Lined Cool, 4 C a Nitrosamines,S G, Teflon-Lined Cool, 4 C Organochlorine Pesticides and PCBs,S G, Teflon-Lined Cool, 4 C

5 Nitroaromatics and Cyclic Ketones,S G, Teflon-Lined Cool, 4 C Polynuclear Aromatic Hydrocarbons,S G, Teflon-Lined Cool, 4 C 40 Haloethers,S G, Teflon-Lined Cool, 4 C a Chlorinated Hydrocarbons,S G, Teflon-Lined Cool, 4 C a 40 Organophosphorus Pesticides,S G, Teflon-Lined Cool, 4 C a Nitrogen- and Phosphorus-Containing Pesticides,S G, Teflon-Lined Cool, 4 C a Carbonyl Compounds (formaldehyde) G, Teflon-Lined Cool, 4 C a 3 days until extraction; 3 Chlorinated Herbicides,S G, Teflon-Lined Cool, 4 C a Chlorinated Phenolics G, Teflon-Lined H 2 SO 4 to ph<2, Cool, 4 C a 30 days until extraction; 30 Resin and Fatty Acids G, Teflon-Lined NaOH to ph >10, Cool, 4 C a 30 days until extraction; 30 DRINKING ATER ORGANICS Purgeable Organics EDB, DBCP, and TCP Carbamates, Carbamoyloximes G, Teflon-Lined Septum Ascorbic Acid, HCl to ph<2, Cool, 4 C, No Cool, 4 C, 3 mg Na 2 S 2 O 3, No 1.8 ml monochloroacetic acid to ph<3; 80 mg/l Na 2 S 2 O 3 if Res.Cl.; Cool, 4 C 28 days Chlorinated Herbicides If Res.Cl, 2mg/40mL NaS; Cool, <6 C until extraction; 21 Chlorinated Pesticides 50 mg/l NaS, HCl to ph< 2; Cool, 4 C until extraction; 30

6 Diquat and Paraquat HDPE, Amber, Teflon- Lined 100 mg/l Na 2 S 2 O 3 if Res.Cl., Cool, 4 C 7days until extraction; 21 Endothall Cool, 4 C 7 days until extraction; 14 Glyphosate 100 mg/l Na 2 S 2 O 3, Cool, 4 C Haloacetic Acids 100 mg/l NH 4 Cl, Cool, 4 C until extraction; 7 Semivolatile Organics 50 mg/l NaS, HCl to ph< 2; Cool, 4 C until extraction; 30 TOXICITY CHARACTERISTIC LEACHING PROCEDURE (TCLP) Mercury H P,G Metals, except Mercury H P,G Volatile Organics H G, Teflon-Lined Semivolatile Organics H G, Teflon-Lined Organochlorine Pesticides H G, Teflon-Lined Chlorinated Herbicides H G, Teflon-Lined TCLP extract: HNO 3 to ph<2 TCLP extract: HNO 3 to ph<2, Minimize TCLP extract: Cool, 4 C, HCl to ph<2, No, Store in Dark a TCLP extract: Cool, 4 C, Store in Dark a TCLP extract: Cool, 4 C TCLP extract: Cool, 4 C 28 days until extraction; days until extraction; 180 until extraction; after extraction to prepare leachate; 7 days to extract to analyze until TCLP ext'n; 7 days until extraction; 40 until TCLP ext'n; 7 days until extraction; 40

7 BACTERIAL CONTRACT LABORATORY TESTS PROGRAM (CLP): (HOLDING TIMES ARE CALCULATED FROM RECEIPT AT LABORATORY) Dioxins/Furans by DLM G Amber Cool, 4 C 1 year Dioxins/Furans by DLM S G Cool, 4 C 1 year Chlorinated Biphenyl Congeners (PCBs) by CBC Chlorinated Biphenyl Congeners (PCBs) by CBC Cyanide, Total and Amenable to Chlorination P,G G Amber Cool, 4 C 1 year S G Cool, 4 C 1 year Cool, 4 C, NaOH to ph 12, plus 0.6 g Ascorbic Acid 12 days Cyanide, Total and Amenable to Chlorination S P,G Cool, 4 C 12 days Mercury P,G HNO 3 to ph<2 26 days Mercury S P,G Cool, 4 C 26 days Metals, except Mercury P,G HNO 3 to ph<2 180 days Metals, except Mercury S P,G Cool, 4 C 180 days Volatile Organics,S G, Teflon-Lined ater - Cool, 4 C, Minimize ; Soil see SOP Semivolatile Organics,S G, Teflon-Lined Cool, 4 C, Store in Dark a extraction; Solids: 10 days until extraction; 40 days ater: 5 days until after extraction 10 days Organochlorine Pesticides and PCBs,S G, Teflon-Lined Cool, 4 C ater: 5 days until extraction; Solids: 10 days until extraction; 40 days after extraction Notes: a. If the water sample contains residual chlorine, 10% sodium thiosulfate is used to dechlorinate b. = Drinking ater; = ater; S = Soil or Sediment; H = Hazardous aste; A = Air c. P = Polyethylene; G = Glass d. For chlorinated water samples e. The maximum holding time is dependent on the geographical proximity of sample source to the laboratory f. Fourteen days until extraction for soil, sediment, and sludge samples