2003-07-31_PERMIT FILE - M2003001

Home Browse Search

Mr. Thomas Schreiner duty 29, 2003 Page 2 of 7 the shape of the mining cells. However, the overall appearance of the site will still follow the mining and reclamation plans. We felt it was important for the public to be aware of this and therefore included Note 5 on the Mining Plan Map, "these plans are conceptual, the final configuration of the slurry wall and mining pods may vary based on engineering design and/or site conditions". Per your request, we have modified the language in this note to: "Hall-Irwin will submit the slung wall design, specifications, and Quality Assurance plan through the technical revision process.' 6.4.4 EXHIBIT D -Mining Plan 4. Page 2 of the Application Form item 13, should include: various petroleum products, antifreeze, lubricating products, and hot mixes. Due to the specfic nature of the Spill Prevention, Control and Countermeasures (SPCC) plan, it will not be prepared until just before the start of operations at the site. We have enclosed a summary of the SPCC Plan policies and procedures. 5. AS we mentioned in the Mining Plan, Hall-Irwin may import materials for processing, hatching or blending plants and for sale at the landscape yard. At this time, Hall-Irwin does not intend to backfill any of the imported material, and therefore it is not appropriate to include in the reclamation cost estimate. If in the future, Hall-Irwin determines there is a need to backfill imported material, we will first obtain Division approval and comply with the requirements of Rule 3.1.5(9). 6. Please refer to the attached Reclamation Calculation Map for the acreages of the various disturbances you have requested. 7. The proposed mining setbacks are contained in the main body of the permit application. Exhibit S -Permanent Man-Made Structures contains a stability analysis that lists the structures within 200 feet of disturbed areas. Based on the Stability Analysis, Hall-Irwin agrees to a 55-foot minimum setback from structures. Hall-Irvrin has been working with the oil and gas companies to develop agreements about each entities' operations on the properly. The notes on the Mining Plan address the oil and gas companies' operational needs, such as the 150 foot setback from wells and a 30 foot setback from gas lines. However, they will allow Hall-Irwin to mine within 75 feet of wells on a quarter circle basis. The setbacks on the Mining Plan Map reflect both the stability analysis and oil and gas company requirements. For example, since the stability analysis dictates a minimum setback of 55 feet from structures, Hall-Irwin will setback 55 feet from gas lines, rather than 30 feet These setbacks are not only described in the Mining Plan Map "Notes°, but also shown as dimensions on the drawing. Note that the map also reflects the commitment that Hall-Irwin will not relocate or move any existing structures until an agreement is in place with the owner of the structure.