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~ <br /> ~SFA SITES <br />~, AA <br />. <br /> j~ <br />~ ~ <br /> ~ <br />~ <br /> nt nna~E`-t~ <br />~ III IIIIIIIIIIIII III ~ <br />999 <br />UNITED STATES ENVIRONMENTAL PROTECTION AGENCY <br />Ref: 8P-W-GW <br />CERTIFIED MAIL <br />RETURN RECEIPT REQUESTED <br />FEB 1 3 2001 ~ <br />Mr. Ed Cooley Division of Minerals and Geology <br />Environmental Health and Safety Manager <br />American Soda, L.L.P. <br />2717 County Road 215 <br />Parachute, Colorado 81635 <br />RE: UNDERGROUND INJECTION CONTROL (UIC) Program: <br />Approval for a Change in Procedure For Pressure Testing <br />Cavities to Demonstrate Tha[ Maximum Injection Pressure Can be <br />Increased, Class Ili Solution Mining Wells, Yankee Gulch Site, <br />EPA Area Permit C03858-00000 Rio Blanco County, Colorado <br />Dear Mr. Cooley: <br />We are in receipt of your letter dated January 30, 2002 regazding your proposal to modify <br />the cavity pressure test procedure used previously on well 20-30 (CO 3858-04557) to <br />demonstrate that the injection pressure could be increased to 800 psig. Your letter indicates that <br />American Soda plans to cant' out similar pressure tests on six (6) additional wells as follows: <br />1. Well 20-11: C03858-04537 <br />2. Well 21-16: C03858-04565 <br />3. Well 29-20: C03858-04569 <br />4. We1120-19: C03858-04556 <br />5. Well 29-28: C03858-04575 <br />6. Well 29-27: C03858-04574 <br />Your letter indicates that you plan to commence testing these cavities as soon as possible <br />and that the letter was intended to serve as the two week notification required by the Permit. <br />Although this letter does satisfy the Permit requirement, it does not provide the specific details as <br />to when each of the six individual cavities will be tested. We assume that you do not intend to <br />test all the cavities at once. We would suggest that testing commence two weeks from the date of <br />this letter, but we need more details on the schedule for testing each of the cavities. <br />Page 1 of 2 <br />REGION 8 <br />999 18T" STREET -SUITE 300 <br />DENVER, CO 80202-2466 <br />Phone 800-227-8917 <br />http:llwvvw.epa.gov/region08 , 1~~ /~ ~O . <br />FEB ~ ~ ~ Db~. ~arVle~ V J-li <br />RECEIVED <br />w <br />~a Pdnfed on Recycled Paper <br />