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• a <br /> (b) Injectate Hazardous Waste Determination <br /> The Permittee shall perform an Injectate Hazardous Waste Determination of <br /> each unique waste stream injected into any of the wells authorized by this <br /> permit, according to 40 CFR §262.11. The results of the analyses shall <br /> demonstrate that the injectate does not meet the definition of hazardous waste <br /> as defined in 40 CFR§261. <br /> (i) Operation of the injection facility is temporarily granted for the two <br /> (2)weeks following initial operations to allow for sample analyses to <br /> be performed and for the results to be submitted to EPA. <br /> (ii) The Permittee will be required to submit a letter to EPA confirming <br /> that the"Hazardous Waste Determination" was carried out according <br /> to 40 CFR§261 within sixty(60) days of its having been completed. <br /> (iii) The Permittee shall perform an additional "Hazardous Waste <br /> Determination" whenever there is a process change or a change in <br /> fluid chemical constituents or characteristics. <br /> 2. Mechanical Integrity <br /> (a) Mechanical Integrity Tests("MITs") <br /> Mechanical integrity testing shall conform to the following requirements <br /> throughout the life of the injection wells: <br /> (i) CasingAubing annular pressure (internal MIT) <br /> A demonstration of the absence of significant leaks in the casing, <br /> tubing and/or liner shall be made by performing a pressure test on the <br /> annular space between the tubing and long string casing. This test <br /> shall be for a minimum of thirty (30)minutes at a pressure equal to or <br /> greater than the maximum allowable injection pressure, A well passes <br /> the MIT if there is less than a five (5)percent change in pressure over <br /> the thirty (30) minute period. A pressure differential of at least 350 <br /> pounds per square inch ("psi") between the tubing and annular <br /> pressures shall be maintained throughout the MIT. <br /> (ii) Continuous pressure monitoring <br /> The tubing/casing annulus pressure and injection pressure shall be <br /> monitored and recorded continuously by a digital instrument with a <br /> resolution of one tenth (0.1) psi. The average, maximum, and <br /> minimum monthly results shall be included in the quarterly report to <br /> FINAL UIC Permit CA t0910003 <br /> Page 13 of 29 <br />