2013-01-08_HYDROLOGY - M1983194 - Laserfiche WebLink

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Operational Fluid Level Limitation At all times the rate of injection shall never exceed the rate of recovery pumping (verified by weekly average flows) plus the amount of fluid needed to replace the volume of produced nahcolite. Iniection Fluid Limitation No off -site waste, on -site industrial wastes or solvents may be injected. Injection of any hazardous waste as identified by EPA under 40 CFR 261.3 is expressly prohibited. The approved injection fluid is a combination of the following fluids having a total volurne equal to the quantity needed to produce brine at the rates required by production: (a) fresh water pumped from the A- Groove Aquifer, used as make -up water; (b) depleted solution mining production fluid from which the bicarbonate /carbonate content has been mostly removed. This fluid is recycled to the wells as part of the solution mining process; and (c) make -up water from the process pond. Well Construction The 13H -1 well is a horizontal well that will be drilled into the lower Boies Bed and constructed according to Part II.A. WELL CONSTRUCTION REQUIREMENTS of the Final Area Permit effective December 4, 2003. Demonstration of Mechanical Integrity ("1) A successful demonstration of Part I (Internal) Mechanical Integrity is required prior to injection, and no less than every five years after the last successful test. (2) The pennittee shall demonstrate Part II (External) Mechanical Integrity pursuant to 40 CFR 146.8(a)(2) using a temperature log and the demonstration of Part II Mechanical Integrity shall be repeated no less than every five years after the last successful test. Demonstration of Financial Responsibility The applicant has demonstrated financial responsibility by a Letter of Credit and has been approved by EPA. The Director may revise the amount required, and may require the pennittee to obtain and provide updated estimates of costs for plugging the well according to the approved Plugging and Abandonment plan. Plu gins and Abandotunent The well shall be plugged in a manner that isolates the injection zone and prevents movement of fluids into or between USDWs, according to Part II.E. PLUGGING AND ABANDONMENT of tile: Final Area Permit effective December 4, 2003. AREA OF REVIEW (AOR) WELL REQUIREMENTS Two wells, the DS -5 and I' )H-R, have been identified to reside within a 1/4 mile radius from the 13H -I injection well. Artthori_ntion for Aciclitior7ul If '-ell: UIC Area Permit C030358 -00000 Df /ell: 13H -1 EPA TJ1e111D: C030358-08417 Pale 3 of 5