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11. We1128-21 EPA Permit 1`fo. C03858-04567 Tested (6/17/02) <br />12. Well 29-29 EPA Permit Afo. C03858-04576 Tested (6/19/02) <br />13. We1120-31 EPA Permit 1`fo. C03858-04558 Tested (6/24/02) <br />14. We1120-33 EPA Permit No. C03858-04560 Tested (6/26/02) <br />15. We1129-34 EPA Permit No. C03858-04577 Tested (7!1102) <br />16. We1120-36 EPA Permit No. C03858-04562 Tested (7/3/02) <br />Prior to increasing the pressure on arty additional well(s), an approved step pressure test <br />shall be run on each well to demonstrate the formation fracture pressure is not exceeded <br />on any wells proposed for pressure increases. <br />(Paragraph 3.) For commercial operations the inlet pressure may range between 300 to <br />700 psig at the surface. If testing is conducted, the results shall be provided to the EPA, <br />and inlet pressures maybe adjusted i:Fwarranted. For the sixteen (16) wells listed above, <br />the inlet pressure may vary between :500 to 800 psig. <br />The Yankee Gulch Project Area Pernrit (C03858) is hereby modified to reflect the <br />increased injection pressure as approved by the Director. This Minor Permit Modification is <br />effective immediately. All other unmodified portions of this section and other provisions and <br />conditions of the Final Area Permit, No. C0:3858-00000, Class III Solution Mining Wells remain <br />in effect. <br />Modified to Read: <br />PART II. C.4. <br />4. Injection Pressure.Limitation. (Paragraph.!.) Based on the results from the test <br />mining, a maximum injection pressure of 700 psig is approved for all wells, <br />except as specified below, within the EPA Area Permit No. CO 3858-00000, until <br />such time as the operator demonstrates otherwise. The operator, based on the <br />results of an injection pressure; test using fluid normally injected to determine the <br />instantaneous shut in pressure (ISIP) and formation breakdown pressure, may <br />request a change in the maximum injection pressure from the Director. <br />Based on the step pressure tesr. results a maximum allowable iujection pressure <br />of 800 nsia is approved by tLie Director for the nineteen (19) wells listed <br />below: <br />Page 4 of 6 <br />