2011-06-20_REVISION - C1981019 ‎(16)‎

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 6/20/2011
• Doc Name: Revised 5/23/2011 Map 41B Watershed Boundaries for Hydrologic Modeling
• Type & Sequence: PR3
• Media Type: M
• Archive: No

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Postmining Contour
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jDrainage Boundary
Tie -In Boundary for Postmining Topography Note: See Map 33C for Profiles of Channels.
See Vol. 18, Exh. 7 -25 for design
\Secondary Drainage Channel, Permanent of Channels.
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Postmining Contour
I
jDrainage Boundary
Tie -In Boundary for Postmining Topography Note: See Map 33C for Profiles of Channels.
See Vol. 18, Exh. 7 -25 for design
\Secondary Drainage Channel, Permanent of Channels.
Major Drrainage Channel, Permanent
i Side Collector Ditches, Temporary
is (To be removed prior to final bond release)
• Stockpond (Stock Tank) Needed for Sediment Control Purposes
Backfill Well Location, Proposed'
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FJ �;,.i�`r�
A , Alo
., fy
W E
S
snrr n Eno' 1000'
CONTOUR INTERVAL 25 FT.
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in NAD27 Colorado North Zone, US Foot ENGINEER'S CERTIFICATION
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1, THOMAS C. PETERSON, being a
7W Licensed Professional Engineer in
UN the State of Colorado, do hereby
certify that this map has been
reviewed by me and is true and
correct to the best of my knowledge
and information relying on work
performed by others, and based on
information supplied by experts
identified in section 2.03.3 of the
Co/owyo Coal Company L.P. Permit.
Tart 0 IILIU��2,�i
U ' 32257 Pte•'
,'�sirslONAL •E�G�� �`��
T3N
WATERSHED BOUNDARIES FOR
HYDROLOGIC MODELING
Collom Area
SCALE. 1" - 500'
•
DATE: 5126106
Q
DRWG. BY TCP- RWFIESI
Colowyo Coal Company
APPROVED BY.
y
5731 State Highway 13
DRWG NO.
• Meeker, Colorado 81641
MAP 41B
0
No.
REVISION
DATE
BY
CHK
Updated PMT tie -in boundary with road, changed stream
PR -3
channels in response to review comments
12114110
TCP
KRB
Revised PMT Tie -In boundary, Revised PMT, added backfill
PR -3
well, revised & deleted several channels and watershed boundaries
3124111
TCP
KRB
Deleted Porcupine Draw & Elk Draw, Modified Beer & Upper Bear
PR -3
Draws. Revised PMT Tie-in boundary, Revised PMT. Revised
5/18111
TCP
KRB
Watershed boundaries, legend note.