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• <br />LOrenciry Canyon Mine - Sur(°ce Warer Technical Revort <br />TABLE SW-I (continued) <br />LORENCITO CANYON MINE <br />SAMPLE PARAMETERS, CONTAINERS, AND PRESERVATIVES <br />Parameter Sample Preservation Sample Holding <br /> Container Technique Transport Time (days) <br />Solids <br />Dissolved Plastic Refrigeration Cool to 4° C 7 <br />Suspended Plastic Refrigeration Cool to 4° C 7 <br />Total Plastic Refrigeration Cool to 4° C 7 <br />Volatile Plastic Refrigeration Cool [0 4° C 7 <br />Sulfate Plastic, Glass Refrigeration Cool to 4° C 28 <br />Sulfide (as HZS) Plastic, Glass Zinc Aceta[e Cool to 4° C 7 <br />Suspended Sediments Plastic, Glass None Required Cool to 4° C 7 <br />Zinc Plastic, Glass HNO to H s 2 Cool to 4° C 180 <br />Each sample collected was preserved by the appropriate method (or filtered), and then place into <br />a cooler and maintain at 4° C for shipment to ACZ laboratories in Steamboat Springs, Colorado. <br />All shipments were via UPS or Federal Express overnight services and had appropriate chain-of- <br />custody documentation. Upon receipt at the laboratory, each cooler was opened and inspected for <br />proper temperature and to see if containers were intact. Analytical methodologies for the samples <br />• varied according to the constituents being analyzed for. Specific methodologies aze listed in Table <br />SW-2. <br />• <br />TABLE SW-2 <br />LORENCITO CANYON MINE <br />SURFACE AND SPRING WATER ANALYSES <br />Parameter Method Detection Limit (mg/L) <br />pH EPA 150.1 0.01 (units) <br />Alkalinity (incl Bicarb. Carb.) EPA 310.1 2 <br />Conductivity EPA 120.1 I (umhos) <br />TDS (incl. TDS Ratio & Calc.) EPA 160.1 l0 <br />TSS EPA 160.2 5 <br />Chloride EPA 325.2 I <br />Sulfate EPA 375.3 10 <br />Hardness, SAR Calculations n/a <br />Nitrogen, Nitri[e EPA 353.2 0.02 <br />Nitrogen, Nitrate EPA 353.2 0.02 <br />Nitrate/Nitri[e EPA 353.2 0.02 <br />Nitrogen, Ammonia EPA 350.1 0.05 <br />Boron, Dissolved' EPA200.7, ICP O.OI <br />Calcium, Dissolved EPA 200.7 ICP 0.2 <br />Magnesium, Dissolved EPA 200.7 ICP 0.3 <br />Porassium. Dissolved EPA 200.7 ICP 0.3 <br />sw 475\December 9. 1946 <br />