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COLLOID ENVIRONMENTAL TECHNOLOGIES COMPANY Groundwater Division <br />' TECHNICAL DATA SHEET <br />Colloid Environmental Technologies Company <br />PureGold° Product Line <br />Colloid EnvironmentalTechnologies Company (CETCO) has specifically engineered the PureGold® <br />product line to meet the strict regulatory requirements of the groundwater monitoring industry. <br />PureGold°products are produced from the highest quality bentonite clays. Each product consists <br />' of a blend of pure, dried bentonite clay without polymers or organic additives. PureGold°products <br />are formulated under strict quality control standards. The products have been analyzed for <br />inorganics using the TCLP Test Method, and for organic priority pollutants using U.S. EPA CLP <br />procedures. The analytical results were below TCLP maximum concentration limits for inorganics <br />and below CLP detection limits for organics. <br /> Product Name Application and Use <br />' PureGold®Gel A 90 bbl. yield, polymer free drilling fluid. Used for maintaining - <br />borehole integrity in unstable <br />ic formations <br />eolo <br /> g <br />g <br />. <br />' PureGold° Grout A contaminant resistant high solids bentonite grout. Used in place <br /> of cement for sealing the annulus of groundwater monitoring wells <br /> and abandoned boreholes. <br />' m <br /> PureGold <br />Tablets Bentonite tablets available in 1/2", 3/8" and 1/4" diameters. Used <br />' for sealing the annulus of groundwater monitoring wells. <br /> PureGold®Doughnut A bentonite cylinder. Used for sealing the annulus of groundwater <br />' monitoring wells. <br /> PureGold° Chips Bentonite chips ranging from: 1/4" to 3/8" in size. Used for sealing <br />' abandoned wells and boreholes. <br /> PureGold®Lube A bentonite based tool joint lubricant. For use in environmental <br />drilling where petroleum based lubricants are not allowed <br /> . <br /> Marsh Funnel & Cup Test equipment for measurement of drilling fluids and grout. <br /> Mud Balance <br /> 1500 W. Shure Drive • Arlington Heights, Illinois 60004-7803 • (708) 392-5800 • Telex ITT 4330321 FAX (708) 506-6150 <br />' A wholly owned subsidiary of American Colloid Company <br /> The informaton and data contained h erein are believed to be accurate and reliable. CETCO makes no warranty of arty kind and accepts no <br /> responsibility for the results obtained through application of this information. <br />