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ENERGY <br />I_/1!- ',ORA1 ORIE:S <br />www.energylab.com <br />Analytical Excellence Una 1952 <br />CLIENT: Cotter Corporation <br />Project: Schwartz Monitoring Program 7/5/2012 S26552 <br />Sample Delivery Group: C12070208 <br />Helena, MT 877- 472 -0711 • Billings, MT 800- 135 -4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 -686 -7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 888 - 690 -2218 <br />Report Date: 08/13/12 <br />CASE NARRATIVE <br />NITRATE +NITRITE ANALYSIS COMMENTS <br />The Nitrate +Nitrite analysis was performed from an unpreserved bottle. This was due to the sulfuric preserved bottle <br />possibly being contaminated with nitric acid. <br />BRANCH LABORATORY SUBCONTRACT ANALYSIS <br />Tests associated with analyst identified as ELI -B were subcontracted to Energy Laboratories, 1120 S. 27th St., Billings, MT, <br />EPA Number MT00005. <br />Page 2 of 21 <br />