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M/ <',' Ss <br />AAMERICAN/ Celina Akin <br />Environmental Specialist <br />SODA, L L P <br />2717 County Road 215 International Telephone +1 (970) 285-6500 <br />Parachute, CO 81635 General Facsimile (970) 285-6393 <br />Wednesday, September 22, 2010 <br />Mr. Nathan Wiser 8ENF-UFO <br />U. S. Environmental Protection Agency <br />Region VIII <br />1595 Wynkoop Street <br />Denver, CO 80202-1129 <br />lM- 14S`?- cDOZ <br />Dear Mr. Wiser: <br />ENV042.10 <br />RECEIVED <br />SEP 2 4 2010 <br />GRAND JUNCTION HELO OFFICE <br />DIVISION OF <br />RECLAMATION MINING & SAFETY <br />0k <br />T- LST ? Ki ? As you are aware, American Soda conducted mechanical integrity testing of the remaining <br />Class III injection wells in the Yankee Gulch Well Field on August 16 and 17, 2010. One of <br />the conditions of temporary abandonment requires this testing to be performed every two <br />years. During the testing in August, one well string failed (see table below for additional <br />details on this well string). <br /> <br />Well ID Stringer Failing MIT <br />Size Dissolution - <br />Depth to CIBP ; <br /> 8/2010 Surface <br />29-34 Short String 7" 1625' 1598' <br /> <br /> <br />American Soda has been coordinating with contractors to finalize plans and schedules for <br />the plugging and abandonment work on this well string. We understand that EPA <br />notification is required in advance (45 days) of the work to plug and abandon wells so that <br />EPA can review the plans and a representative may witness the testing if possible. This <br />letter is intended to provide notification to the EPA that American Soda intends to plug and <br />abandon the well strings according to the information supplied in the preliminary plugging <br />and abandonment plan which is attached. <br />Please review the information submitted in this plugging and abandonment plan and <br />provide EPA approval so that we can finalize the purchase order for this work. We do not <br />yet have confirmation of the date the plugging will be completed. Our discussions with the <br />contractors who will be doing the work are currently focused on the third or forth week in <br />October 2010. As soon as we confirm a date I will contact you to let you know when it is <br />scheduled. Please let me know if you can accommodate an EPA notification period <br />shorter than 45 days for the plugging and abandonment work. The sooner we can <br />complete this plugging and abandonment work the more likely we will avoid inclement <br />weather.