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<br />D. Sedimentation Ponds <br /> <br />Three sedimentation ponds will be constructed within the permit area to treat runoff <br />from all disturbed areas. The capacity of the ponds will be achieved with a <br />combination of partial excavation below grade and constructed embankments. Pond <br />NHN-001 will be constructed along the southern permit boundary, Pond NHN-002 <br />will be centrally located north/south along the western boundary, and Pond NHN- <br />003 will be in the northwest corner of the permit area. The design information for <br />the sedimentation ponds is located in Section 2.05.3(4) of the permit application <br />package, and the locations of the sedimentation ponds are shown on Map 2.05.3(4)-1 <br />of the permit application package. <br /> <br />1. None of the three sediment ponds will be located within a perennial stream. <br />(4.05.6(1)(b)). <br /> <br />2. Alternative design criteria and specifications have not been proposed for use in <br />sediment pond design and/or construction (4.05.6(11)). <br /> <br />E. Acid-forming and Toxic-forming Spoil <br /> <br />The Division proposes to approve temporary storage of acid- and toxic forming spoil <br />for more than 30 days. This decision is based on a finding that burial or treatment of <br />these materials within 30 days is not feasible and the delay will not result in any <br />material risk of water pollution or other environmental damage (4.05.8(3)). See <br />Section 2.04.6 for identification, mining plan contingencies, and physical/chemical <br />properties of the overburden. WFC has developed plans for sampling overburden <br />during mining to identify the quantity and quality of deleterious material. Spoil and <br />mine soil reconstruction plans that address acid and toxic-forming materials in NHN <br />Mine permit area is given in Section 2.05.4(2)(d). <br /> <br />F. Impoundments <br /> <br />Other than the three proposed sedimentation ponds, no impoundments are proposed <br />for construction in conjunction with the New Horizon North Mine operation (4.05.9). <br /> <br />G. Surface and Ground Water Monitoring <br /> <br />WFC has established a surface water and groundwater monitoring program that will <br />gather baseline and operational water quantity and water quality data in order to <br />monitor the effects of the proposed mining operation on the surface and subsurface <br />water which is within or adjacent to the permit area. The Hydrologic Monitoring <br />Plan is described in Section 2.05.6(3)(b)(iv) of the permit document. <br /> <br />1. The applicant will conduct monitoring of ground water in a manner approved <br />by the Division. The ground water monitoring plan is as follows (4.05.13(1)): <br /> <br /> <br /> <br />23 <br /> <br />