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Attachment L <br /> Construction Procedures <br /> Application Requirements <br /> Discuss the construction procedures (according to §146.12 for Class I) to be utilized. This <br /> should include details of the casing and cementing program;logging procedures; deviation <br /> checks;the drilling,testing,and coring program;and proposed annulus fluid. (Request and <br /> submission of justifying data must be made to use an alternative to packer for Class I). <br /> Approach <br /> This section will describe the proposed construction procedures for the LEC-1 Class I well <br /> and the LEC-2 backup well,if drilled, according to rules in 40 CFR§146.12. This section <br /> includes details of the casing and cementing program;logging procedures; deviation checks; <br /> the drilling,testing and coring program; and proposed annulus fluid. References to LEC-1 <br /> would also apply to LEC-2. <br /> Details of the STIG-1 well construction included in the 1993 permit application are provided <br /> in Appendix 10. Existing and estimated well coordinates for the STIG-LEC facility injection <br /> wells are shown in Table L-1. <br /> TABLE L-1 <br /> STIG-LEC Facility Injection Well Coordinates <br /> LABEL Longitude Latitude <br /> STIG-1 -121.388459 38.088426 <br /> LEC-1 (estimated) -121.387604 38.087269 <br /> LEC-2 (estimated) -121.386011 38.087335 <br /> Casing and Cementing Program <br /> The well construction for LEC-1 has a lower casing and sand pack installed within the well <br /> casing because flowing sands were encountered at the STIG-1 site. The construction utilized <br /> at that location effectively addressed the condition. Since the STIG-1 has operated effectively <br /> since it was constructed,a similar approach will be used for future well installation at the <br /> site. <br /> SAC/371322/082560019(ATTACHMENT-L.DOC) L-1 <br />