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Page 6 <br /> cannot be viewed from adjacent properties or is totally <br /> screened. • <br /> (16) Mining activities shall not cause excessive vibration off site. <br /> If excessive vibration becomes an issue, the City reserves the <br /> right to take appropriate measures to alleviate the problem. <br /> (17) Groundwater protection measures shall include: <br /> a. The Operator shall file with the City an Emergency <br /> Spill Prevention and Counter Control Plan and a <br /> Storm Water Pollution Prevention Plan as may be <br /> required by other governmental entities. The Operator <br /> shall adhere to these plans in the event there is a spill. <br /> b. The Operator shall provide the Fire Department with a <br /> copy of their flammable or hazardous materials. <br /> c. Fuel tanks shall be above ground, properly diked (if <br /> required by law), and registered with MPCA. <br /> d. All incidences that have the potential to adversely <br /> • <br /> affect groundwater, including but not limited to spills, <br /> shall be verbally reported to the City within 24 hours. <br /> This verbal notification shall be followed up in writing <br /> within four (4) working days. <br /> e. The appropriate storm water permits (NPDES) shall be <br /> obtained by the Operator from MPCA and copied to the <br /> City. <br /> f. Mining activities shall not take place closer to ground <br /> water levels than indicated in the plans submitted <br /> without amending this conditional use permit. <br /> g. Gravel washing operations are prohibited at this site <br /> and will require an amendment to this permit to be <br /> allowed in the future. <br /> h. Except for minor repairs, maintenance of vehicles and <br /> equipment shall take place in the shop at the Elk River <br /> Bituminous site. The Operator shall have an approved • <br /> hazardous waste license for this facility and properly <br /> dispose of all waste. <br /> s:\b&z\stever\gravcup.doc <br />