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Hitch Rack Ranch Quarry Waste Stockpile Stability Analyses/591-6 <br /> NORWEST March 13,2 <br /> Pagee 7 7 <br /> COR PORAT ION <br /> 7. RECOMMENDATIONS <br /> A list of recommendations is provided below to mitigate risks and supplement the ongoing slope stability <br /> compliance during operation. <br /> • Site specific investigation, such as test pits, should be completed at the footprint of F1 to confirm <br /> overburden thickness, material characteristics, and groundwater conditions. <br /> • Samples of the overburden and topsoil stockpiled should be collected and tested for strength to <br /> determine their actual parameters. <br /> • Samples should be collected from the fines stockpiled material and analyzed to determine their <br /> actual strength parameters. <br /> • The engineering designs should be reviewed using the site-specific data and revised if needed prior <br /> to construction. <br /> • The upstream surface water run-on above the stockpile should be managed to limit infiltration <br /> and erosion. <br /> • Once the final site conditions, construction design,,placement method, and monitoring plans are <br /> in place,the stability should be reviewed with the updated information to evaluate the difference <br /> in parameters and determine any adjustment to stability analyses is needed. <br />