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RULE 4 PERFORMANCE STANDARDS <br />.. _,. ,. �. N�.. r.,,,, r' ,. .; � n6vk�.,, �, .�. r,,..�,r..:::,� �w,..,.. .^4:>., -ye. .... ., r•�e.i:t.:w3..*+a:�d"G;s,4,Y>�ffiL k7��.°�a;;4'�;':'AS�5�5ir.,.. u^: °'isat..,.:...%�Y.x�rz,,, <br />A future spoil water monitoring well will be drilled (and water quality monitored) as identified on Map <br />4 1 B in the reclaimed Collom Pit area to monitor and measure the potential development of a spoil aquifer. <br />This location represents the lowest point in the proposed Collom Pit. <br />4.05.14 Transfer of Wells <br />Please see Section 4.05.14 in Volume 1. <br />4.05.15 Water Rights and Replacment <br />Please see Section 4.05.14 in Volume 1 and Section 2.04.7(2) in Volume 15. <br />4.05.16 Dischrage of Water into an Underground Mine <br />This section is not applicable to the Collom Mine. <br />4.05.17 Postmining and Rehabilitation of Sediment Pond, Diversions, Impoundments, and <br />Treatment Facilities <br />Please see Section 4.05.17 in Volume 1. <br />4.05.18 Stream Buffer Zones <br />Lands within 100 feet, or greater distance if required, of a perennial, an intermittent, or an ephemeral <br />stream with a drainage area larger than one square mile are required to be protected under Rule 4.05.18, <br />unless the Division specifically authorizes surface operations within the stream buffer zone. Stream <br />buffer zones have been identified along Wilson Creek and Jubb Creek, as the drainage area reporting to <br />these streams is larger than one square mile. Colowyo will be developing the Collom Haul Road which <br />will be inside the stream buffer zone on both Wilson Creek and Jubb Creek. <br />The Collom Haul Road will cross Wilson Creek as shown on Map 25E Sheet 1. During construction <br />Colowyo will install a bottomless culvert, and will employ proper best management practices (BMPs) <br />during the construction phase in accordance with Colowyo's approved stormwater management plan, <br />Section 401 certification, and US Army Corps 404 permit. Once construction of the road is completed, all <br />surface water runoff from the Collom Haul Road will be directed to BMPs prior to being released. <br />The Collom Haul Road will also cross Jubb Creek as shown on Map 25E Sheet 1. The construction of the <br />crossing will be similar to the Wilson Creek crossing and will utilize the same BMPs during and after <br />construction. <br />As shown on Map 25E Sheet 1, the Collom Haul Road will parallel Jubb Creek. There will be one <br />section of the haul road that will be within 100 feet of the stream. As shown on Map 25E Sheet 1, at <br />approximately Station 140+00 there will be about 140 feet of proposed disturbance within the stream <br />buffer zone on Jubb Creek. Proper BMPs will be employed prior to any disturbance occurring within this <br />area and once the road construction is complete any areas that can be reclaimed will be completed as soon <br />as possible. <br />Much of Little Collom Gulch will be directly impacted by the Collom Pit, the temporary spoil pile, and <br />the Section 25 Pond (see Map 23C). The Section 25 Pond will protect the lower reaches of Little Collom <br />Collom — Rule 4, Page 11 Revision Date: 9/1/16 <br />Revision No.: MR -161 <br />