2006-10-15_REVISION - M1983102 - Laserfiche WebLink

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Mr. Larry Thompson Adequacy Review, Amendmert AM-02 Pemti[ Application No. M-1983-I02 November 15, 2006 9, 2006 revealed several structures that were not identified on the maps of Exhibit C. These structwes include several power poles along the north permit boundary; a small shed located west of the Mirabito residence; Mirabito's water well; and a red barn east of the Mirabito residence. Please revise the Maps of Exhibit C to identify the individual structures and include the omitted structures listed above. Rule 6.4.6 Exhibit F -Reclamation Plan Man 5. Two Reclamation Plan Maps, Map Exhibit F and Figure F-1, were submitted with the application; however, Figure F- 1 shows the storm water detention pond remaining after reclamation while Exhibit F does not. Please clarify if the storm water detention pond will remain after reclamation, and if so, please modify each map accordingly. Rule 6.4.7 Exhibit G -Water Information 6. In exhibit G -Water Information, the applicant indicates that the proposed expansion of the existing mining operation will not impact the ground water system because the ground water table is fifty-five to sixty-five feet deep and that mining will be confined to the upper forty feet of the gravel. The ground water information was obtained from a hydrological assessment report for the subject mining operation prepazed by ERO Resource Corp. (ERO). However, the Division's review of this report revealed that the most recent ground water data provided by ERO is seven years old while the oldest data is twenty years old. Therefore, the Division requests that the operator provide at least five quarters of current ground water data to establish a baseline for the elevation of the ground water table at the mine site, as well as a ground water monitoring plan during mining operations to monitor any impacts to the ground water table. The plan should inc]ude mitigation measures for impacts to the ground water table and trigger points to determine when mitigation must be implemented. In addition, the plan should include mitigation measures in the event ground water is exposed during mining and the time frame for implementing corrective action. 7. In accordance with Rule 6.4.7(3), please provide an estimate of the project water requirements including flow rates and annual volumes for the development, mining and reclamation phases of the project. 8. Itt accordance with Rule 6.4.7(4), please indicate the projected amount from each of the sources of water to supply the project water requirements for the mining operation and reclamation. Rule 6.4.17 Exhibit O - Proof of Mailine of Notices to Boazd of Countv Commissioners and Soil Conservation District 9. Pursuant to Rule 1.6,2(1)(a)(ii), proof of notice shall be in the form of a return receipt of a Certified Mailing or date- stamped copy of the notice acknowledging receipt by the appropriate local Board. Please submit the appropriate Proof of Notice to the Local Soil Conservation District. Rule 6.4.19 Exhibit S -Permanent Man-made Structures 10. In Exhibit S, the applicant identifies numerous permanent man-made structures and includes a Geotechnical Stability Exhibit explaining why the stability of structures within 200 feet of the mining operation will not be impacted by mining. While the Division agrees that 2H:1 V slopes in gravel will in all likelihood be stable, the Division requests that the operator provide an appropriate engineering analysis using empirical data to demonstrate that the proposed slopes will be stable, and that the stability of the adjacent structures will not be compromised. Please be advised that the Thompson Resource Amendment AM-02 Application may be deemed inadequate, and the application maybe recommended for denial by the Mined Land reclamation Board on January 10, 2007 unless the above- mentioned adequacy review items are addressed to the satisfaction of the Division. If you feel more time is needed to complete your reply, the Division can grant an extension to the decision date. This will be done upon receipt of a written waiver of your right to a decision by January 10, 2007 and request for additional time. This must be received no later than the deadline date.