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<br />-3- <br />~ A list of proposed seed mixtures must be submitted annually to the Division for <br />review and approval. The list should include pure live seed (P LS) per square <br />foot, pounds PZS per acre, species origin, and acre estimates to be seeded <br />for each mix. <br />O h 14. Seneca Coals, Ltd, must address the use and control of acidic material in <br /> embankment construction in accordance with Section 4.03.1(3)(d)(iv) within <br /> 30 days of permit issuance. In addition, the requirements of 4.03.1(3)(d) <br /> (v)(vi),(vii) and (viii) must be addressed and included in the application. <br />O ~ 15. Within 30 days of permit issuance, the applicant must describe measures to <br /> provide erosion protection and runoff control in areas where drainage <br /> ditches discharge onto open terrain. <br />(~ ~( 16. Because severe surface erosion could contribute to the occurrence of local- <br /> ized embankment failures, both the up- and downstream embankment slopes must <br /> be revegetated during the fall of 1981 in order to reduce the potential of <br />~~ <br />~ such erosion. <br />~ ~ ~ The embankment must be inspected annually, or within 10 days following any <br /> storm whose backwater elevation exceeds the elevation of 6991.1 feet above <br />~~.~ v <br />6/`~ sea level (ZO-year, 24-hour maximum storm event's projected backwater elevation), <br /> by a qualified Geotechnical Engineer or Engineering Geologist. A letter of <br /> certification containing the results of that inspection must be submitted to <br />~ the Division within two weeks following the inspection. <br />