2016-02-18_INSPECTION - C1982056

• Permit No: C1982056
• IBM Index Class Name: Inspection
• Doc Date: 2/18/2016
• Doc Name: Acetone Seep, Additional Info and Lab Analysis, Phenol Identified
• From: Twentymile Coal, LLC
• To: DRMS
• Email Name: JLE
• Email Name: DIH
• Media Type: D
• Archive: No

A
Attn. Mike Crum
Twentymile Coal Company
29515 Routt Co. Road #27
Oak Creek CO 80467
REFERENCE DATA:
Requested Analysis:
ALS -SL Reference Number:
Sample Type:
Date Received:
Date Analyzed:
Client Number
SP -1
OBJECTIVE:
GC -MS Screen
1604403
Liquid Bulk
February 13, 2016
February 15, 2016
ALS -SL Number
1604403 001
February 16, 2016
Phone: [phone]
Email: mcrum�peabodyenergy com
The objective of this analysis was to identify major constituents.
ANALYTICAL PROCEDURE:
Sample Type
Liquid Bulk
The sample was analyzed by direct injection to determine the bulk of the sample, which turned out
to be water.
To determine the organics in the sample, one milliliter of the sample was mixed with one milliliter
of methylene chloride containing an internal standard(4,4'-dibromooctafluorobiphenyl). To this mixture
was added 100 mg of sodium chloride and 0.5 gram of anhydrous magnesium sulfate. The mixture was
shaken immediately and vigorously for about one minute. The methylene chloride layer was recovered
by centrifugation to separate the layers. The methylene chloride extract was then analyzed by GC -MS.
A blank water sample was prepared in parallel and analyzed as well.
GAS CHROMATOGRAPH AND MASS SPECTROMETER CONDITIONS:
Instrument: Hewlett-Packard Model 5890 gas chromatographic with autosampler coupled to a
Hewlett-Packard Model 5973 mass selective detector.
Injection: 1 µL in splitless mode, at 250 °C
Column: Column: 28 meter x 0.32 mm id x 0.5 µm df 1313-5 capillary column.
Temperature Program: 45 °C for 2 minutes, heating to 310 °C at 10 °C /minutes.
Head pressure at 5 psi at 45 °C, constant pressure thereafter.
ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, USA 84123 1 PHONE [phone] FAX [phone]
ALS GROUP USA, CORP. Part of the ALS Laboratory Group A Campbell Brothers Limited Company
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