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The Permittee is required to notify the UIC Director at least two (2) weeks prior to any <br />required integrity test. The Director may allow a shorter notification period if it would be <br />sufficient to enable the EPA to witness the mechanical integrity test (MIT}. Notification maybe in <br />the form of a yearly or quarterly schedule of planned mechanical integrity tests or it may be on an <br />individual basis. <br />If the well fails to demonstrate mechanical integrity during a test, or a loss of mechanical <br />integrity as defined by 40 CFR § 146.8 becomes evident during operation, the pennittee shall <br />notify the Director in accordance with Part III, Section E. 10. (c) of this permit. Furthermore, <br />injection activities shall be terminated immediately; and operafions shall not be resumed until the <br />permittee has taken necessary actions to restore integrity to the well and the Director gives <br />approval to recommence injection. <br />Injection Interval (Condition 3) <br />The proposed injection zone extends from the top of the Cozzette Member of the Iles <br />Formation at a depth of 3,864 feet BGS (Cozzette is perforated from 3,911 to 3,927 feet BGS) to <br />the base of the Corcoran Member of the Iles Formation. The Corcoran Sandstone is perforated <br />from 4,077 to 4,241 feet BGS. These two intervals are separated by a shale interval making up the <br />base of the Cozzette Member. The injection zone is confined by a Tongue of the Mancos on top <br />and the main part of the Mancos underlying the injection interval. <br />Injection Pressure Limitation (Condition 4) <br />There have been two attempted step-rate tests on this well. Both tests are considered <br />unreliable and may not have achieved fracture pressures. There was, however, a fracture treatment <br />of the well that was used to estimate the fracture gradient of the injection zone. Based on the <br />instantaneous shut-in pressure from the fracture treatment of the Getty # 1-7LW, a maximum <br />surface injection pressure of 930 pounds per square inch gauge (psig) has been established. If <br />a higher pressure is requested, it must be accompanied by a step-rate test (SRT) of the injection <br />zone, using fluid normally injected, to determine both the instantaneous shut-in pressure (ISIP) and <br />the formation breakdown pressure. The Director will determine the allowable pressure <br />modification based upon the test results and other parameters reflecting actual injection operations. <br />The permittee shall give thirty (30) days advance notice to the Director if an increase in <br />injection pressure will be sought. Details of the proposed test shall be submitted at least seven (7) <br />days in advance of the proposed test date so that the Director has adequate time to review and <br />approve the test procedures. Results of all tests shall be submitted to the Director within ten (10) <br />days of the test. Any changes in the maximum injection pressure established by this section, as <br />dictated by the test results, will be made as a minor modification to the Permit. <br />erection Volume Limitation. (Condition 5) <br />There is no limitation on the number of barrels of fluid per day (BFPD) that maybe <br />injected into the Getty No. 1-7LW disposal well, or in the cumulative number of barrels injected, <br />Statement of Basis for EPA Permit No. CO 10932-04664 Page 12 of 18 <br />