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GENERAL46160
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Entry Properties
Last modified
8/24/2016 8:17:24 PM
Creation date
11/23/2007 2:23:45 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
General Documents
Doc Date
5/5/2005
Doc Name
Midterm Review Findings Document
Permit Index Doc Type
Findings
Media Type
D
Archive
No
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C-81-019 2005 Midterm Review <br />May 5, 2005 <br />Scoria Pit (and to the Taylor Creek Pit) to specification presented in the approved permit appeazs <br />on page 6 Exhibit 13. See also page A-6 of Appendix A to Exhibit 13. The Division Permit <br />Renewal 4 Findings of October 21, 2002 indicates that the Division has approved several small <br />azeas of disturbance to be exempt from the use of sediment ponds to treat runoff. Typical of these <br />small areas aze topsoil stockpiles, electric power substation installations, the lineaz fresh water <br />line, and the rail loop. [Topsoil piles (page 4.06-2a) where runoff reports to a sedimentation pond <br />do not need to be identified here.) The fmdings indicate that Colowyo demonstrated that <br />treatment facilities were not necessary. Please provide a reference to exemption <br />documentation-in the PAP, oFdevelop-a-section-that{-rovides-theregnired-descriptions-and <br />demonstrations. <br />Rule 4.05.13(1)(b) <br />Item 55 Page 4.05-15. Points of compliance are not identified. The Division informed Colowyo <br />under a letter dated August 13, 2001, of a significant revision to Rule 4.05.13 regazding ground <br />water points of compliance. Rule 4.05.13 requires that "One or more points of compliance be <br />established for any coal mining operation, which in the opinion of the Division, has the potential <br />to negatively impact the quality of ground water for which quality standazds have been <br />established by the Water Quality Control Commission." Based on review of recent Annual <br />Hydrology Reports, it appeazs that the Coloywo mining operation may have the potential to <br />negatively impact ground water. The Division, therefore, believes that it is necessary at this time <br />to review the current monitoring program to determine the need for points of compliance. Please <br />review your ground water monitoring program specific to establishing a groundwater <br />point (or points) of compliance at the Colowyo Coal Mine, and provide the Division with <br />you input and feedback. The Division will, upon your request, assist you during this process to <br />identify the need for, and, if necessary, to determine the specific location(s) for, ground water <br />points of compliance. <br />Rule 4.05.13(4)(a) <br />Item 56 Page 4.05-1 line 14. Inclusion of the dates of Annual Reports dates this entry and <br />requires periodic changes. To eliminate this requirement, please change so much as read "-- <br />for 1983 through 1990" to read "--- for 1983 to present". <br />Rule 4.05.13(1)(e) <br />Item 57 Page 4.05-10. The Division considers measurements of water levels in piezometers as <br />monitoring of groundwater. Even though these measurements are not taken to monitor quantity <br />and quality of groundwater, please include the Streeter Fill Wells (W6900S, W6900N, W6700 <br />and two collapsed piezometer wells), Section 16 Fill well, and the West Pit Fill well in this <br />summary (see page 4.05-16). <br />Rule 4.05.13(4)(c) <br />Item 58 Page 4.05-11. The last sentence of the second pazagraph of this Colowyo May 2, 1983 <br />letter states that the first annual report will be submitted by April 1, 1984. This does not <br />20 <br />
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