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<br />Copies of all records of injected fluids, and any major <br />changes in characteristics or sources of injected fluid <br />shall be included in the Quarterly Report. <br />The first Quarterly Report shall cover the period from <br />the effective date of the Permit through the end of <br />that quarter. Subsequent Quarterly Reports shall cover <br />the periods of: January 1 through March 31; April 1 <br />through June 30; July 1 through September 30; and, <br />October 1 through December 31. Each Ouarterly Report <br />shall be submitted to the EPA Denver Office thirty (30) <br />days after the end of the quarter to the address below. <br />Appendix B contains Form 7520-8 which may be copied and <br />used to submit the quarterly summary of monitoring. <br />Address: <br />U.S. Environmental Protection Agency <br />Region VIII, M/C: BENF-T <br />999 18t° Street, Suite 500 <br />Denver, Colorado 80202-2966 <br />E. PLUGGING AND ABANDONMENT <br />1. Notice of Pluyaing and Abandonment. The Permittee <br />shall notify the Director forty-five (45) days before <br />abandonment of the well. When a Class III well is <br />retired from service, the borehole and casing must be <br />securely plugged to prevent any movement of the fluid <br />into or between USDWs. <br />2. Pluggina and Abandonment Plan. Individual wells shall <br />be plugged and abandoned upon retirement. Plugging and <br />abandonment will take place once it has been determined <br />that there shall be no potential further use of a well, <br />either for mining, testing, monitoring, or other <br />purpose. <br />Immediately prior to plugging and abandoning, the <br />tubing system shall be removed from the intermediate <br />casing. <br />The plugging and abandonment plan (Appendix C), <br />submitted by the Permittee and revised by the EPA, <br />consists of one (1) plug with the following <br />specifications: a cast iron bridge (CIBP) shall be set <br />inside the intermediate casing at approximately the <br />EPA FINAL Area Permit No. C03858-00000 <br />Page 27 of 164 <br />