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V ` • • R1r. Scott Patten April 5, 191;7 Page -2- 4J The map of yround water mon..itoring sites has bee.a provided. This map does not include the location of the Parshall flume or flow staff yauge, however. Additionally, it will require certifi.%~ation. 5J Flatiron needs to provide a discussion of pas;..ind future rrbnitoring procedures as outlined in she March I8, ]982 memo. D. xydrologic Impacts 1J FZatiron needs to provide a statement of orohab.le hydrologic, consequence for the mine addressiny all real and potential cftesCs the mining and reclamation opera Lion will have on the water required at the mine site and surrounding areas. 13ob Liddle discussed the requirements for this section in detail. The statement should include but not be limited to a discussion of diminution of r.~ater to downsCrean~ users, whether impacts are significant, the duratie,r of impacts,ornl ho,/ the mining operation is mitigating these impacts. 2J Bob Liddle discussed several proposed stipulations. These stipulations may be eliminated by addressing them in the applica t.:on. Sti pula Ci ons included: Che placement of staff gauges showing "%; sediment vcla~mo "in all sediment ponds, a plan to adr)ress the gate prohi c;n in pond TI r: hi ch will meet the requirement of the State Engineers Office and Ch1hRD, and the certification that all sedim~.nt ponds are built as designed by a qualified certified P.E. E. Topsoil 1J Flatiron stated that actual ~edon descriptions i.ere not available. 2J Scott Patten explained the relationship between the soils information in the tables and on the soils man. 3J So11 stripping depths were d~=.termined by Carol 2>a hlke in the rC Vi e~w of the interim permit. 4J Several concerns have surfaced a to the adequacy of the soil nuppi.ng, particularly in the area; whcro saline anrlf~" sodi.c soi)•~ appear. The Division is requiring/ I'Iatiron to resrm•i,lr sni1,5 on ~h~• mine site to further characteri z~• suitable soils 1"or reel arra ti on, -~nr1 unsuitable soils. This will req,ire remappiny, resampling by sni.1 horizons in increments not to exceed 12", and analyze;:, for pli, :dAR, EC, and texture. Soil samples tmm existing stoc{: r~ Lc. ; ;~~i11 be c~•~luired, additionally. Flatiron requested that the Division determine the p L~ce- ment of soil sampling Locations. The Division is ~:illing to do this; however, it was pointed out that the choice of ~.rampling locations ;hnuid be done by the company in cons ul b,tinn wi.Ch the Div i::i on.