Laserfiche WebLink
C. Stream Channel Diversions <br />1. There are no diversions of an ephemeral stream draining at least one squaze mile, <br />an intermittent, or a perennial stream on the site [4.05.4(1) and (4)]. <br />2. The Division proposes to perpetuate two previously-approved channel lining <br />structures (the riprapped relief drains) for use to control erosion. These structures <br />were approved by the Division since they are necessary to control erosion. They <br />are stable and will require infrequent maintenance [4.05.4(2)(a)]. <br />3. There is no stream channel diversion with a lesser capacity than the unmodified <br />stream channel immediately above and below on the site [4.05.4(2)(b)]. <br />4. An ephemeral stream channel was established across the reclaimed portal and <br />facilities area of the site. The Division proposes to perpetuate this previously- <br />approve permanent feature. It is consistent with applicable state law, will not <br />diminish downstream water rights and meets the requirements of Rules 4.05.4 <br />and 4.05.4(3). <br />5. The relief drains off the terrace for overland flow and an upland ephemeral <br />drainage aze riprapped to allow the terrace to remain in dynamic equilibrium with <br />the drainage basin system. The Division proposes to perpetuate the previously- <br />approved use of the structures [4.05.4(4)(b)]. <br />D. Sedimentation Ponds <br />1. No sediment pond is located in a perennial stream (4.05.6(1)(b)]. <br />2. The Division makes no proposal to approve the submittal of reports required by <br />Rule 4.05.6(13) on otherthan a quarterly basis. f <br />3. No alternative design criteria and specifications were submitted or have been <br />approved for use in sediment pond design and/or construction [4.05.6(1 1)]. <br />E. Acid-forming and Toxic-forming Spoil <br />No acid-forming or toxic-forming spoil was encountered on the site [4.05.8(3)J. <br />F. Impoundments <br />The one impoundment on site is a sedimentation pond. See paragraph D above. <br />G. Surface and Ground Water Monitoring <br />The applicant will conduct monitoring of ground water in a manner approved by <br />the Division. The ground water monitoring plan consists of annual analysis of <br />mine water discharge for field conductivity, flow, pH and temperature, and <br />1 I 03/06/00 <br />