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2008-04-14_HYDROLOGY - C1981022
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2008-04-14_HYDROLOGY - C1981022
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Entry Properties
Last modified
8/24/2016 3:27:27 PM
Creation date
4/15/2008 2:53:29 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981022
IBM Index Class Name
HYDROLOGY
Doc Date
4/14/2008
Doc Name
1st Quarater 2008 Pond Inspection Report
From
Oxbow Mining LLC
To
DRMS
Permit Index Doc Type
Sediment Pond Inspect
Email Name
JJD
Media Type
D
Archive
No
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n <br />~XBGVI/ 1VI11lIlNG, LLC <br />Ir "``` <br />~~ <br />FIRST QUARTER 2008 POND INSPECTION REPORT <br />Pond Inspection Date: March 26, 2008 <br />Miscellaneous Comments: <br />1. The SWMP control devices were inspected and all SWMP control devices were found to be in fair <br />condition. Performed further routine SWMP maintenance during the quarter on Elk Creek mine and <br />facility roads. Sumps in front of straw bales were cleaned, etc. Snow in ditches and culverts most of the <br />quarter. <br />2. Outfall Ol 1 - Outfa11011 formerly served as a mine water pond for the Sanborn Creek Mine. The <br />pond does not collect surface drainage. With closure of the Sanborn Creek Mine, the incised pond <br />associated with Outfa11011 serves no further hydrologic function. The pond currently provides an <br />ongoing location to place ditch cleaning materials from adjacent ditches. Outfall 011 has been removed <br />from CDPS Discharge Permit CO-0000132. <br />3. Outfall 012 - (B Pond) had snow dumped on W. side of pond. Slow melting has started. <br />4. Outfall 016 - (D Pond) discharging slowly (~2 gpm) through apparent minor band leak on primary <br />outlet. All discharges have been in compliance. <br />5. Sediment and Water Level Determination -When sediment enters a pond, it is deposited unevenly, <br />usually collecting at the inlets rather than evenly across the bottom of the pond. Reported sediment levels <br />are based upon the inspector's observations made throughout the quarter during routine inspections in <br />combination with knowledge of the pond structure. The reported pond water level is also determined by <br />observations relative to the various landmarks in the pond (depth to bottom, primary riser, etc.) <br />Notwithstanding comments above, ponds have been maintained as designed and in accordance with the <br />approved plan. <br />Inspected By: <br />Under Direction o£ <br />~ Y.„ <br />James A. Kiger <br />3737 Hwy 133 P.O. Box 535 Somerset, Colorado 81434 USA <br />TEL (970) 929-5122 4 FAX (970) 929-5177 <br />
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