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U.S. SILICA COMPANY <br /> Safety Data Sheet <br /> Silica Sand or Ground Silica Page 7 of 9 <br /> 12. ECOLOGICAL INFORMATION <br /> Ecotoxicity: Crystalline silica(quartz) is not known to be ecotoxic. <br /> Persistence and degradability: Silica is not degradable. <br /> Bioaccumulative potential: Silica is not bioaccumulative. <br /> Mobility in soil: Silica is not mobile in soil. <br /> Other adverse effects: No data available <br /> 13. DISPOSAL CONSIDERATIONS <br /> Discard any product,residue, disposable container or liner in full compliance with national regulations. <br /> 14. TRANSPORT INFORMATION <br /> UN number: None <br /> UN proper shipping name: Not regulated <br /> Transport hazard classes(es):None <br /> Packing group,if applicable: None <br /> Environmental hazards: None <br /> Transport in bulk(according to Annex 11 of MARPOL 73/78 and the IBC Code):Not determined <br /> Special precautions:None known. <br /> 15. REGULATORY INFORMATION <br /> UNITED STATES (FEDERAL AND STATE) <br /> TSCA Status: Crystalline silica(quartz)appears on the EPA TSCA inventory under the CAS No. 14808-60-7. <br /> RCRA: This product is not classified as a hazardous waste under the Resource Conservation and Recovery Act, <br /> or its regulations,40 CFR §261 et seq. <br /> CERCLA: Crystalline silica(quartz)is not classified as a hazardous substance under regulations <br /> of the Comprehensive Environmental Response Compensation and Liability Act(CERCLA), 40 <br /> CFR§302. <br /> Emergency Planning and Community Right to Know Act(SARA Title III): This product contains the following <br /> chemicals subject to SARA 302 or SARA 313 reporting: None above the de minimus concentrations. <br /> Clean Air Act: Crystalline silica(quartz)mined and processed by U.S. Silica Company is not <br /> processed with or does not contain any Class I or Class II ozone depleting substances. <br /> FDA: Silica is included in the list of substances that may be included in coatings used in food <br /> contact surfaces, 21 CFR§175.300(b)(3)(xxvi). <br /> California Proposition 65: Crystalline silica(airborne particles of respirable size) is classified as a substance <br /> known to the State of California to be a carcinogen. <br /> California Inhalation Reference Exposure Level(REL): California established a chronic non-cancer effect REL <br /> of 3 ug/m3 for silica(crystalline,respirable).A chronic REL is an airborne level of a substance at or below <br /> Date of preparation/revision: May 4, 2015 <br />