My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2014-07-16_HYDROLOGY - C1981010
DRMS
>
Day Forward
>
Hydrology
>
Coal
>
C1981010
>
2014-07-16_HYDROLOGY - C1981010
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 5:45:47 PM
Creation date
7/28/2014 7:44:04 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Hydrology
Doc Date
7/16/2014
Doc Name
2nd Quarter 2014 DMRS (CO-0032115)
From
Trapper Mining Inc
To
WQCD
Permit Index Doc Type
DMR’s
Email Name
JLE
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
19
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
TRAPPER MINING INC. <br />July 11, 2014 RECEIVED <br />CERTIFIED <br />Colorado Department of Public Health and Environment <br />Water Quality Control Division <br />WQCD -P -132 <br />4300 Cherry Creek Dr. South <br />Denver, CO 80246 -1530 <br />Subject: Second Quarter 2014 Colorado Wastewater Discharge Monitoring Reports <br />Permit No. CO- 0032115 <br />To whom it may concern: <br />JUL 18 2014 <br />DMSION OF RECLAMATION <br />MINING AND SAFETY <br />Enclosed are Trapper Mine's Second Quarter 2014 Colorado Wastewater Discharge Monitoring Reports for the <br />period 04/1/14- 06/30/14. During this quarter, six NPDES outfalls were active. Outfalls 001, 002, 011, 017, 018 and <br />020 discharged during the quarter. Outfalls 008, 009, 019, 021, 022, 023 and 024 did not discharge during the <br />quarter. Values reported on the enclosed DMRs represent the maximum (or minimum as applicable) monthly /daily <br />values generated at each outfall during the quarter. <br />The TDS is reportable on a quarterly basis per our permit. The TDS values are as follows for each active outfall: <br />001 <br />002 <br />011 <br />017 <br />018 <br />020 <br />3280 mg/L <br />1760 mg /L <br />1520 mg/L <br />600 mg/L <br />240 mg/L <br />1630 mg/L <br />One exceedence of primary effluent limitations occurred at outfall 018. A value of 114 mg/L for Total Suspended <br />Solids and 6490 ug/L for Total Iron was reported. Warming temps and residual snowpack in this watershed created a <br />spring snowmelt event at this outfall. This exceedence is applicable for the alternative reporting limits based on <br />Settleable Solids. Settleable Solids were reported at 0.4 mg/L for this sample date at outfall 018 and would not be a <br />violation of the NPDES discharge permit. At the time of sampling, there was significant snow pack left on the north <br />facing slopes of this drainage, primarily directly above the pond. The disturbed and reclaimed mine areas were <br />melted off. Two photos are provided courtesy of CDRMS inspector Jared Ebert of the area above outfall 018. Note <br />the snow fields present on the north facing slopes in the second photo. This area is a native hillside, unaffected by <br />our operations. During this inspection April 10', 2014, we found the outfall to be discharging in the morning and it <br />was sampled later in the day. A warming trend preceding the 101 of April and a high temperature of 69 on the 91 <br />and 62 on the 101 resulted in significant snowmelt. Discharge was primarily from the undisturbed native hillside. <br />No other exceedances occurred at the other active outfalls this quarter. <br />Also enclosed are monthly NOAA weather summaries for the reporting period. The enclosed NOAA weather <br />summary reports show the temperatures and precipitation measurements for the period mentioned. Daily <br />precipitation measurements are recorded at 7:00 a.m. as well as daily maximum and minimum temperatures from the <br />previous 24 hours. <br />Trapper is required to maintain sediment levels in ponds at or below 60% of the pond volume. Outfalls 002, <br />structure #4, Outfall 017, structure #1 and Outfall 020, structure #1 has exceeded 60% sediment levels. These <br />structures will be cleaned this summer. All structures operated properly and were not compromised in any way. All <br />other operations were properly conducted concerning the sediment control structures at Trapper Mine. <br />P.O. Box 187 Craig, Colorado 81626 (970) 824 -4401 <br />
The URL can be used to link to this page
Your browser does not support the video tag.