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1997-06-13_REVISION - M1981302 (61)
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1997-06-13_REVISION - M1981302 (61)
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Entry Properties
Last modified
9/9/2022 4:24:29 PM
Creation date
11/21/2007 11:56:59 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1981302
IBM Index Class Name
Revision
Doc Date
6/13/1997
Doc Name
CITY OF BOULDER EXHIBIT L
Type & Sequence
AM2
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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' V. DRAINAGE <br /> The Flatiron Property was historically used as farm land for growing grasses and livestock <br /> grazing. The historic drainage patterns were initially changed by farming practices <br /> followed by gravel mining activity. The following drainage comments are based upon the <br /> Reclamation Plans for the Turnpike Pit and the Deepe Pit dated April 15, 1996 and <br /> January 26, 1996, respectively. Please refer to Exhibit IX-1, later in this report, which is <br /> a composite of these two reclamation plans. <br /> ' Land Contours <br /> ' These reclamation plans propose the Flatiron Property to have drainage waters flow to the <br /> north with most proposed grades being between 1 and 2 percent. Proposed hillsides or <br /> side slopes may vary from 4:1 (horizontal to vertical) to 10:1. It is the intent of the <br /> proposed reclamation grading plans to provide adequate surface water drainage and to <br /> balance cuts and fills on the site upon completion of proposed plans. <br /> Retention Ponds <br /> The preliminary grading plan proposes one new central pond to be constructed, one <br /> existing pond to be enlarged, the southern two sedimentation ponds to be abandoned, and <br /> one sedimentation pond and two existing ponds to be left in place. Drainage is proposed <br /> to be routed from the only proposed remaining sedimentation pond to the proposed new <br /> central pond. From the new central pond, drainage water is proposed to be conveyed to an <br /> existing pond via a new Swale. <br /> All ponds shown on the proposed reclamation plans are labeled with water surface <br /> elevations. Please refer to section VI[ - Water Rights & Irrigation for the water rights <br /> implications these ponds will have on the interim use of the site. <br /> ' -13- <br />
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