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2017-06-28_REVISION - C1981019 (3)
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2017-06-28_REVISION - C1981019 (3)
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Entry Properties
Last modified
6/30/2017 8:50:55 AM
Creation date
6/30/2017 7:39:49 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Revision
Doc Date
6/28/2017
Doc Name
Adequacy Review Response
From
Tri-State Generation and Transmission Association, Inc.
To
DRMS
Type & Sequence
TR111
Email Name
ZTT
JRS
Media Type
D
Archive
No
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6/30/2017 State.co.us Executive Branch Mail - Fwd- FW: TR -111 Adequacy Response <br />additional detail regarding the drainage of these parcels to ensure all disturbances report to the Coal <br />Stockpile Pond as designed. <br />Response: Exh. 7-23, Figure M-2 and M-3 have been updated to reflect the area in west section of SWS47-2, <br />just west of station 15+00, to drain to the West Collector Ditch. Once the downstream sediment control <br />structures are in place and the West Collector Ditch is no longer necessary, the coal stockpile pad will toe out <br />over the ditch as was previously shown prior to the revisions under this response. Until that time, runoff from <br />disturbances above the West Collector Ditch will be routed to the ditch. <br />For the 1.5 acre area denoted as SWS44-1, a grass filter demonstration has been conducted and included with <br />this response. The grass filter demonstration clearly indicates that within 20' of the edge of disturbance a 0.00 <br />mill of settleable solids is achieved. <br />Tony Tennyson <br />Senior Environmental Engineer <br />Tri-State Generation and Transmission Association, Inc. <br />Office: 970.824.1232 <br />ttennyson@tristategt.org <br />APlease consider the environment before printing this email. <br />Zach Trujillo <br />Environmental Protection Specialist <br />P 303.866.3567 x 8164 1 F 303.832.8106 <br />1313 Sherman Street, Room 215, Denver, CO 80203 <br />Zach.Trujillo@state.co.us I mining.state.co.us <br />n TR -111 Adequacy Response.pdf <br />1502K <br />https://mail.google.com/mail/b/Alk_JgYBUudxsN9rSphtyOx4fvMOkjO5rDChJ U4VS78F9W2tU38P/u/O/?ui=2&ik=deb7fOcd2O&jsver=nZ9otGMmGjO.en.&... 2/2 <br />
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