GENERAL35570 - Laserfiche WebLink

Home Browse Search

results required by Section G (3)(a) in the quarter following the date of demonstration. The first Quarterly Report shall cover the period from the effective date of the Suspension Notification through the end of that quarter. Subsequent Quarterly Reports shall cover the periods of: January 1 through March 31; April 1 through June 30; July 1 through September 30; and, October 1 through December 31. Each Quarterly Report shall be submitted to the EPA Denver Office thirty (30) days after the end of the quarter to the address below. Appendix B contains Form 7520-5 which may be copied and used to submit the quarterly summary of monitoring. U.S. Environmental Protection Agency Region 8 Mail Code 8ENF-UFO 999 18th Street, Suite 300 Denver, Colorado 80202-2466 4. Temporary Plugging: The borehole and casing of wells placed into temporary suspension status must be securely plugged to prevent any movement of the fluid into or between USDWs. a. Temporary Plugging Plan. All wells to be placed in temporary suspension status are deemed to be candidates for future operation. Any wells that are not deemed to be candidates for future operations shall be plugged and abandoned using agency approved methods in accordance with Part II Section E of this permit. The permittee must temporarily plug suspended wells according to the following plan. 1. Immediately prior to temporary plugging, the tubing system shall be removed from the intermediate casing. 2. A cast-iron bridge plug (CIBP) shall be set inside each string of casing at approximately the elevation of the bottom of the short string casing. If it is not possible to run a CIBP inside each string of casing due to irregularities, acement basket shall be run inside the casing to establish a cement plug. The bridge plug or cement basket will be set at least 25 feet below the Dissolution Surface. If the bridge plug or cement basket cannot be set at least as deep as 25 feet below the Dissolution Surface, the permittee shall Tile an approvable well repair plan with the Director within 30 days or the well shall be plugged and abandoned per an EPA- approvedplugging and abandonment plan within 60 days. 3. The well bore will be filled with a conditioned 101b. bentonite gel or equivalent. An oil blanket may be used at the surface to prevent freezing. b. After completion of temporary well plugging, an evaluation will be made as to whether any partial or complete reclamation of affected well sites and roads should be conducted. Reclamation and re-vegetation will be conducted as prescribed by BLM and CDMG Permit requirements and as influenced by weather factors. c. Temporary Plugging Report. Within sixty (60) days after plugging the well, the permittee shall submit a plugging completion report to the Director. The report Draft Addendum to SOB For Modification No. 9, UIC Area Permit No. C030858-00000 Page 13 of 17