_REVISION - M1980244 (31) - Laserfiche WebLink

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29 parameter values. CC&V is proposing the PGMW-I A, SGMW-4A and ESPMW-1 be used for compliance purposes along with existing wells GVMW-8A, WCMW-6, and CRMW-3B. The compliance values for ESPMW-1 are suggested to he pH between 6.0 and 9.0 and WAD cyanide of 0.2 mgll. VIN-tA, VlN-18, and WCMW-2 will he used as additional matutoring wells. d. Rule 6.4.20 (12)r The applicant is regairod, where necessary to demonstrate that the Futvironmental Protection Plan regairements are being met, to propose a water qualiry monitoring plan for both surface and ground water. In company with Drawing 10.1, the application does propose a ground water monitoring plan applicable forAmendtnent 8. However, this plan, as described in the application, eliminates most of the current ground water monitoring wellsRocations appearing on Figure 9-! together with all existing ground water permit conditions and points of compliance. The Cresson Project clearly has the potential to adversely affect the qualiry of ground water i» its area where ground waist has net been classified by the WgCC. Rules 3.1.7 (2). (3) and (6) require, in such case, that permit conditions protective of the existing and reasonably potential future uses of the ground water char may be ~rcred by rush an operation be established, included in a permit mod~eation such ar Amendment 8 and that points of compliance shall ako be set, It is, therefore, the Division's position that if the mare limited ground water monitoring plan proposed is to be accepted in conjunction with the proposed expansion of the operation, then the existing permit conditions and points of compliance for the Grassy Valley, Wilson Creek and Arequa Gulch locations should be retained In addition, (f the Division determines that the ground water qualiry jusr(fs'es it, permit conditions should be established and points of compliance set for Poverty Gulch, Squaw Gulch, the Vindicator Valley and the area of the new A1~R processing pond Re9poase: As previously indicated, CC&V will continue to monitor the existing compliance wells, WCMW-6, GVMW-8A and CRMW-3E, in accordance with the limits established is Amendment No. 7. CC&V proposes PGMW-l A, SGMW-4A, and ESPMW-1 for compliance purposes. The compliance limits for PGMW-lA and SGMW-4A will be established once five quarters of haseline data have lrEn collected. The new well to be oonstruotod doang<adieat of the Phase I, II, and III Fsternal Pond (ESPMW-t) will be used to monitor the External Pond CC&V proposes that the compliance iimiu fot~ this well be a pH in the range of 6,0 to 9,0 and WAD cyanido levels of 0.2 mg/l. CRMW-3B lies downgrndient of this area and will contirne w serve as the full suite compliance well. CC&V is not proposing addition of a compliance well in the Vindicator Valley. However, VIN-lA, VIN-18 and WCMW-2 will be usod as motritoiing wells. H. In the event the area is hit with a 6.0, or greater, magnitude earthquake, it could adversely t~ect the VLF roe berm. !f the epicenter is located within 700 miles from the VLF, CC&V should crommii to having the toe berm inspected by a register prgfessional engineer. Any damage to the toe berm must be documented and a proposal for remedtation of the damage ({f any) must be submitted to the Division within 30 days. Response: CC& V is in agreement with these conditons based on the need to ensure structural and operational atahiliry. area o£the newADR nroces~in~ nand