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<br />6.2 Hydrochloric Acid <br />8. The potential affects to human health, property, and environment are presented in the <br />MSDS sheet located in Appendix A of this document. <br />9. Hydrochloric acid is. used to adjust the pH of the influent stream in the water <br />treatment facility prior to passing the stream through the nanofiltration membranes. <br />Hydrochloric acid is added in equivalent, or slightly less, than the equivalent amount <br />of sodium hydroxide added in the upstream water treatment step. Therefore, the <br />hydrochloric acid is ultimately corsumed in the water treatment process. <br />10. MSDS (see Appendix A of this document) <br />11. Disposal, decommission, detoxification, and stabilization of hydrochloric acid at the <br />water treatment facility is discussed in detail in the ERP. <br />12. Measures taken to prevent release, including secondary containment, aze presented in <br />the ERP. <br />13. Hydrochloric acid is stored inside the water treatment facility, where the appropriate <br />controls have been engineered into the design of the building to provide for safe <br />handling and storage (see the ERP). <br />14. Potentials to produce acid mine drainage. (see acid generation/neutralization <br />potential tests, humidity cell tests, baseline studies, Exhibits D.6.4.4 and D.3.3, <br />Appendix F, TR-018, and the TR-015 Response Plan) <br />6.3 Lime <br />15. The potential affects to human health, property and environment are described in the <br />MSDS sheets located in Appendix A of this document. <br />16. Lime is used to chemically modify the effluent, or concentrate stream emanating from <br />the nanofiltration membranes. Lime is added primarily to reduce the concentration of <br />sulfate in the concentrate stream in the water treatment processes. Thus, the ultimate <br />fate of the lime is to be partially consumed in the formation of calcium sulfate solids. <br />17. MSDS (see Appendix A of this document) <br />18. Disposal, decommission, detoxification, and stabilization of lime at the water <br />treatment facility is discussed in detail in the ERP. <br />19. The lime used in the water treatment process is stored in a silo located adjacent to the <br />water treatment building and consideration has been given in the engigeering design <br />to eliminate the possibility of lime release from the facility (see the ERP). <br />20. Handling and storage of the lime associated with the operation of the water treatment <br />• facility is described in the ERP. Lime is kept in a lime silo. <br />BaBle Mountain Resources, /nc. Shepherd Miller /nc. <br />p:voosann-vepp_rrp4m mo- K.trd.pp/z/.,tx 6 October 28, 1999 <br />