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SOP No. 11.0 Sample Management <br />Table 1 <br />CHEMICAL ANALYSES <br /> Estimated <br /> Number of LAB <br /> QC Sam pies b Estimated Number of FIELD QC Sam pies Number of <br /> Analytical MSD Container(s)) <br /> Method Sample or Trip Field Rinsate Minimum Volume Sample Hold Time <br />Analytical Parameter (a) Matrix MS DUP Field Du Blank Blank Blank c Preservation (d) (from collection) <br />Total Metals except SW-846 Water 1 per 20 1 per 20 NA 0 1 per 20 pH < 2 with HN03 I I -liter poly 180 days <br />Mercury 6020/601OB samples samples samples <br />Total Metals except SW-846 Sed/soil 1 per 20 1 per 20 NA 0 I per 20 Cool to 4 °C 116-oz poly or glass 180 days <br />Mercury 6020/601OB samples samples samples <br />Total Metals except SW-846 Biota 1 per 20 See SOP (e) NA 0 l per 20 On ice See SOP (e) 180 days <br />Mercury 6020/601 OB samples samples <br />Total Mercury SW-846 7470A Water 1 per 20 1 per 20 NA 0 1 per 20 pH < 2 with HN03 1 500-m1 poly 28 days <br /> samples samples samples <br />Total Mercury SW-846 Sed/soil I per 20 1 per 20 NA 0 1 per 20 Cool to 4 °C 116-oz poly or glass 28 days <br /> 7471A samples samples samples <br />Total Mercury SW-846 7471 A Biota 1 per 20 See SOP (e) NA 0 1 per 20 On ice See SOP (e) 28 days <br /> samples samples <br />Diss. Metals except SW-846 Water 1 per 20 1 per 20 NA 0 1 per 20 pH < 2 with HN03 1 I-liter poly 180 days <br />Mercury 6020/601OB samples samples samples <br />Diss. Mercury SW-846 7470A Water 1 per 20 1 per 20 NA 0 1 per 20 pH < 2 with HN03 1 500-m1 poly 28 days <br /> samples samples samples <br />Anions SW-846 0056 or Water 1 per 20 1 per 20 NA 0 1 per 20 Cool to 4°C 1 250-m1 poly 28 days <br />(Sulfate, Chloride) EPA 300.0 samples samples samples <br />Anions SW-846 0056 or Sed/soil I per 20 1 per 20 NA 0 1 per 20 Cool to 4°C 1 16-oz glass 28 days <br />(Sulfate, Chloride) EPA 300.0 samples samples samples <br />Fluoride 340.2 Water I per 20 l per 20 NA 0 1 per 20 Cool to 4°C 1 - 250 ml poly 28 days <br /> samples samples samples <br />Fluoride 340.2 Sediment 1 per 20 1 per 20 NA 0 1 per 20 Cool to 4°C l - 16 oz glass 28 days <br /> samples samples samples <br />Ammonia as N EPA 350.1 Water 1 per 20 1 per 20 NA 0 1 per 20 pH < 2 H2SO4 1- 500 ml poly 28 days <br /> samples samples samples <br />Nitrate/Nitrite as N EPA 353.1 Water 1 per 20 1 per 20 NA 0 I per 20 pH < 2 H2SO4 1- 250 ml poly 28 days <br /> samples samples samples <br />Nitrite as N EPA 354.1 Water 1 per 20 1 per 20 NA 0 1 per 20 Cool to 4°C I - 250 ml poly 48 hours <br /> samples samples samples <br />Hexavalent Chromium SW-846 7106A Water 1 per 20 1 per 20 NA 0 1 per 20 Cool to 4°C I - 250 ml poly 24 hours <br /> samples samples samples <br />4/23/07 Page 10 of 19 R Squared Inc.