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__. --... - y.JLY K...;. a-,_ 2S L". Rule 6.4.20 (9) (a): The applicant is required to indicate the existing and reasonably potential future ground water uses on and within 2 miles down-gradient of the t~ected lands. The application does state that no' use is being made of ground water encountered within the diatreme nor is any use expected in the future because of the drainage of ground warerfrom the diatreme by the various drainage tunnels, T'he application, however, makes no attempt to identify the appannt existing and reasonably potential future ground water uses outside the diatreme but still within 2 miles down•gradient of the erected lands. Drawing G-! shows numerous, presumably domestic or industrial, welts to the host granite surrounding the diatreme as wadi as along various natural drainages where they may possibl y be completed in associated colluviat-alluvial bodies. Response: As°discussed In Amendment No. 8, grwnd water that has the potenaial to be affmted by CCBcV's operations is limited to the fracture controlled ground water system within the diatreme. As stated in the text, no uses are ]mown for ground water within the diatreme. As has been established by CC& V and concurred by the OMLR based on past submittals and approvals (e.g. Amendment No. ~, there is no ground water cottnection between the diatreme and the surrounding granodiorite w breccia. Therefore, no information on ground water uses outride of the diatreme was provided since there is no potential for impacts. A review of Drawing Gi shows that noire of the ground water wells outside the permit area ere influenced by drainage fsota the diatreme area, b,rc, instead, receive recharge, if they in fact exist and are used, tiom other areas. The ground water wells outside the permit area are designated by the State Engineer's Office as used for "household uses;' domestic uses," and "monitoring," Further as discussed in previous responses, the sballow alluvial and colluv[al sediments within the stream chatutels in the diatreme do not provide continuous flow and generally oNy are rechazged in the event of heavy precipitation. The systems which have wells installed apparently within or adjacent ro the stream channel are not is areas which could he impacted by CC&V's operation. This is particularly true since all of the ground wader flaws within the CC&V affected sees are expected to flow internally into the diatreme and exit, if at all, through the Carlton Tunnel along with waters from other areas collected by this tunnel. The OMLR has previously reviewed numerous reports an the ground water flow within the diatreme and has concurred with this conelueloa F. Rule 6.4.20 (9) (b): The applicant is required to submit, at a tntnlmum, ground water data collected during 5 successive calendar quarters or as spec'if'ied 6y the Division as necessary ro adequaeety describe baseline conditions. The application refers to the existence of S successive quarters of data for a number of wedds proposed as future ground water tnonttorfng sitesfor Amendment If Adequate ground water gualiry data, however, has not been supplied far the proposed new wells located in Yoverry Gulch and-Squaw Gulch or the area of the new ADR processing pond CC&V should fatly satisiv the reaffll6n1B7trs o f rl+is Rute ar indicate in the absence aiadeounte data •how tNe regulrements of rhi-s Rule will 6e satisfietC Respattse: CC&V has installed wells in the Poverty Gulch and Squaw Gulch areas and wdl be installing a new weA downgradient of the Phase I, II, and III External Pond. Three of these wells (SGMW-4A, PGMW-lA and FSPMW-1) will be compliatce wells in addition to Ure three existing compliance wells (WCMw-6, GVM'W-8A, and CRMW-3B) under Amendmert No, ~. Upon completion of the five quarters of data collection. CCTV will provide the data to the ONII.R. and, for those wells to be used for compliance purposes (except for ESPMW-1), will work with the OMLR to develop appropriate