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1 ~_.~ <br />;.~ <br />' COLLOID ENVIRONMENTAL TECHNOLOGIES COMPANY <br />Groundwater Division <br />' TECHNICAL DATA SHEET <br />PureGold® Grout "sF <br />CERTIFIED <br />'. Description: PureGold® Grout is an easy mixing, single component, organic free, <br />high solids bentonite clay grout. It was engineered to form acon- <br />taminantresistant seal without affecting groundwater chemistry. <br />PureGold® Grout is a technically superior replacement for tradi- <br />tional cement grouts. It will form a low permeable flexible clay seal <br />which impedes interaquifer fluid movement and the infiltration of <br />surface contaminants into the borehole. <br />Recommended Use: PureGold® Grout should be used in the sealing of boreholes or the <br />annular space of monitoring wells to control contaminant infiltration <br />and preserve ambient groundwater quality. <br />Characteristics: o Contaminant free, all 116 priority pollutants tested for were below <br />CLP detection limits. <br />' o Chemically stable, results from TCLP Metals Analysis are below <br />'..- RCRA limits for hazardous constituents. <br />o pH range from 5-6 standard units. <br />` ~ o Low permeability, laboratory test results range from lx 10-' to <br />', 1x109 cm/sec against permeants ranging from a pH of 2 to12. <br />o Will not damage well casing, no heat generated during mixing or <br />curing. <br />'- o Low formation loss, minimum flow through highly permeable <br />soils. <br />o Remains flexible, maintains putty-like consistency over time and <br />will re-hydrate. <br />Mixing and PureGoldm Grout should be mixed with a grout mixer or a mud <br />Application: rotary recirculation system and tremied with a positive displacement <br />l pump. It can be mixed in a slurry up to 30% solids, remains <br />placeable for up to two hours and sets in eight hours. <br />. To achieve a 30% solids slurry, add one SO lb. bag of powered grout <br />to 14 gallons of fresh water. This mixing ratio will yield approxi- <br />' mately 2.2 cu. ft. of grout. Prior to placement, the grout should have <br />_ a mud balance density reading of approximately 10 lbs./gal. Grout- <br />' ing is complete once the same mud balance reading is achieved from <br />grout purged from the borehole. This simple quality control test will <br />ensure proper grouting and eliminate inconsistencies in the field. <br />' `~ Packaging: PureGold° Grout is packaged in SO lb. multi-wall, weather resistant <br />bags, shipped 48/50 lb. bags per pallet, and stretch-wrapped. <br />' 1500 W. Shure Drive • Arlington Heights, Illinois 60004-7803 (708) 392-5800 Telex ITT 4330321 FAX (708) 506-6750 <br />A wholly owned subsidiary of American Colloid Company <br />The information and data contained herein are believed to be accurate and reliable. CETCO makes no warranty of any kind and accepts no <br />responsibility for the results obtained Through application of this information <br />