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AMERICAN <br />SODA. LlP <br />~c <br />'~~l <br />~~ <br />Ed Cooley <br />Environmental Health and <br />Safety Manager <br />2717 County Road 215 <br />Parachute, CO 81635 <br />Thursday, March 18, 2004 <br />Elisabeth Evans <br /> <br />Director Technology Enforcement Program <br />U.S. Environmental Protection Agency <br />Region VIII <br />999 18'" Street, Suite 300 <br />Mail Code 8ENF-T <br />Denver, Colorado 80202-2466 <br />Direct une (970) 285-0dD7 <br />Internafi~onal telephone +1 (970) 285-6500 <br />General Facsimile (970) 285-6393 <br />ENV.61.04 <br />MAR 2 a 2004 '~ <br />9ivision of trninerals and Geolo£y <br />Re: Well 21-16 (C03858-04565) <br />Dear Elisabeth: <br />In accordance with Minor modification b to EPA Area Permit No. C03858-00000 American <br />Soda LLP has made verbal notification and by copy of this letter is providing written <br />notification that Well 21-16 (C03858-04565) had a sudden decrease in production return and <br />a drop in injection and production pressure. As soon as the operations personnel discovered <br />this change the following steps where initiated: <br />1. The well pressure, temperature and flow meters were checked for accuracy. <br />2. The well valves were checked for leakage. <br />When steps one and two did not correct the problem the following steps were initiated <br />3. Injection into the well was discontinued. <br />4. A mechanical integrity test has been completed on the well casing and well tubing. <br />Both the casing and tubing demonstrate integrity. <br />5. A temperature log has been pertormed and there is no indication of upward <br />movement of fluids (copy attached). <br />Well 21-16 will be de-pressurized and maintained in a standby mode until a final <br />determination can be made to either request permission to re-inject into this well or to <br />De~iv=rzng a Crystal ^l ear ~dvancage <br />www.america^s.da.~om <br />