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Technical Revision No . 15 , approved 12/1/93 , included updates <br /> of pond designs on the permit maps, including the emergency <br /> spillway location and sizing. <br /> 1 . There are no variances that apply to any of the sediment <br /> ponds at either the mine site or loadout . EFCI has no <br /> intention to construct additional sediment pond <br /> structures . <br /> 2 . All ponds meet the requirements of Rule 4 . 05 . 6 and are <br /> inspected by a registered, professional engineer <br /> quarterly. <br /> More information on the Sediment ponds can be found in Section <br /> 2 . 05 . 3 , pages 44R-49R and Maps 21-24 and 26-27 of the permit <br /> application. <br /> D. Acid-forming and Toxic-forming Spoil <br /> No acid or toxic-forming materials have been identified as <br /> occurring within the mine or loadout areas as a result of <br /> chemical analyses of soils, coal, roof and floor materials, or <br /> coal refuse. For comprehensive information on the results of <br /> these tests, refer to Sections 2 . 04 . 6, 2 . 04 .9 and Exhibit 9 of <br /> the permit application. <br /> E. Impoundments <br /> No impoundments currently exist at the Southfield Mine site or <br /> loadout . All containment structures have been re-structured <br /> and fitted with silt fences per Technical Revisions No. 15 and <br /> 17, approved in 1993 . <br /> F. Surface and Ground Water Monitoring <br /> 1 . The applicant will conduct monitoring of ground water in <br /> a manner approved by the Division. The ground water <br /> monitoring plan is as follows : <br /> Ground water samples are measured semi-annually for the <br /> parameters listed on page 2 . 04 . 7-16 of the permit <br /> application. There are four ground water monitoring <br /> wells - MW-10 , MW-16, MW-23 and MW-65 . MW-8 was <br /> Southfield Mine Permit Renewal 03 <br /> 37 <br />