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documentation of any communication with and approval by EPA shall be <br /> included. <br /> 3. Order of Construction for Wells CSC-1 and CSC-2 <br /> Well CSC-1 shall be constructed first, and shall meet all conditions of Sections A <br /> through C of this part prior to the Permittee receiving approval to construct Well <br /> CSC-2. <br /> 4. Testing during Drilling and Construction <br /> Two injection zones were identified in the permit application as possible targets, a <br /> primary target and an alternative target in the case where the primary target does not <br /> meet requirements. The shallower Miocene sand will be tested first, and if the zone <br /> meets regulatory and operational requirements, the well will be completed at that <br /> depth and will not be drilled deeper. Otherwise, the well will be drilled deeper to the <br /> alternative Cretaceous 2nd Tracy sand target. Proposed Well Schematics submitted <br /> with the application are hereby incorporated for reference into this permit as <br /> Appendix B, Figures 21 and 22. <br /> Logs and other tests conducted during drilling and construction shall include, at a <br /> minimum, deviation checks, casing logs, and injection formation tests as outlined in <br /> 40 CFR §146.12(d). Open Hole logs shall be conducted over the entire open hole <br /> sequence. <br /> 5. Injection Formation Testing <br /> Injection formation information for Well CSC-1, as described in 40 CFR 146.12 (e), <br /> shall be determined through well logs and tests and shall include porosity, <br /> permeability, static formation pressure, and effective thickness of the injection zone. <br /> A summary of results shall be submitted to EPA with the Final Construction Report <br /> required in paragraph 12 of this section. In addition, similar logs and tests may be <br /> required in well CSC-2, at the discretion of EPA. <br /> (a) Ground Water Testing <br /> During construction of the wells (CSC-1 and CSC-2), information relating to <br /> ground water at these sites shall be obtained and submitted to EPA. This <br /> information shall include direct Total Dissolved Solids ("TDS") analysis of <br /> target injection formation water to demonstrate either the presence and <br /> characteristics of, or the lack of, any Underground Sources of Drinking <br /> Water ("USDW"s). A USDW is defined as an aquifer or its portion which <br /> supplies any public water system; or which contains a sufficient quantity of <br /> ground water to supply a public water system; and currently supplies <br /> UIC Permit CA 10500002 <br /> Page 6 of 29 <br />