|(a) The permittee shall submit daily construction chronology reports to the executive director and to the resident inspector, if applicable, providing data for each day during the drilling or mining, and casing or lining of the shaft. The data shall be presented in tabular form and shall report date, thickness and lithology penetrated, material settings and volumes, and problems. (b) Within 90 days after the completion of the shaft, the permittee shall submit an engineering drawing showing the as built construction details of the shaft, liners, depth, thickness, and lithology of the rock units penetrated in constructing the shaft. (c) The permittee shall, prior to commencing construction, provide written notice to the executive director that a copy of the permit has been filed with the commissioners court for the county where the shaft is located. (d) The permittee shall notify the executive director in writing of
the anticipated first date when the shaft will be used or operated for its stated purpose at least 30 days prior to commencing use of the shaft. Compliance with all pre-operation terms of the permit must occur prior to beginning operations. (e) The permittee shall notify the executive director within 24 hours of the discovery of any unplanned leakage or other failure of the shaft or associated chambers. (f) Within 90 days after the completion of a corrective maintenance action, a report shall be filed with the executive director providing the reason for the shaft corrective maintenance action and the details of all work performed and results of remedial action.