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Ambient conditions on Trout Creek at site 301 are: 18.7 ton/day 8.78 = 47~ increase in salt loading to Trout Creek 18.7 l~° ~° ~ ~^~''`' a ,~\ review of the PHC's for Foidel Creek and Eckman Park indicate that this calculated loading is in excess of what is currently predicted. Therefore, the Division requires TCC (or CYCC) to do the following: i. Submit a technical revision to the Foidel Creek Mine permit to establish an alluvial well and adjacent surface water monitoring site on Trout Creek below the Fish Creek confluence. This site should be located and established during the 1993 field season. CYCC Response As discussed, TCC is working toward the permitting of the required site. Installation of the site will be completed at such time as approval is granted for the appropriate permitting items, ground conditions allowing. DMG Concern 2. Submit a technical revision to both the and the Eckman Park permit updating the consequences section at each permit predictions based on available data throu calculations, data referenced, maps, revisions. CYCC Response Foidel Creek permit probable hydrologic to reflect future gh 1992. Include all etc., with these As discussed, TCC will submit the required PHC update in conjunction with work being done for Permit Revision #3 (Eastern Mining District). CYCC will submit an update~to the PHC in 1994, in conjunction with work being done with the TCC permit, due to the overlap of a number of sites. While the Division's calculation indicates that there is an increase in TDS levels below the confluence of Fish and Trout Creeks, TCC questions the Division statement that the increase in TDS presently constitutes a threat to irrigation waters. Does the Division in fact feel that there is an existing threat, or rather that there is a potential concern being stated? TCC assumes it to be the latter, with the Division stating a possible concern.