2011-10-21_HYDROLOGY - C1981019

• Permit No: C1981019
• IBM Index Class Name: HYDROLOGY
• Doc Date: 10/21/2011
• Doc Name: Elevated Levels at Outfall 010A request for Waiver of Primary Quality Standards
• From: Colowyo Coal Company
• To: WQCD
• Permit Index Doc Type: NPDES
• Email Name: JHB
• Media Type: D
• Archive: No

10/16/2011
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12/26/2011
12/27/2011
12/28/2011
12/29/2011
12/30/2011
12/31/2011
Colowyo Mine - Ambient Air Network
4th Quarter Precipitation and Temperature Data
Section 34 Temperature Data
24 Hour Average TEOM Concentrations Daily Total Precipitation 24 Hour Average One Hour Mao One Hour Min
( (inches) Temperature Temperature Temperature
Date STP LTP SCN16' ' STY/.R SCN34 GOSSARD ( °F) ( °F) ( °F)
10/1/2011 54.0 43.6 0.00 0.00 0.00 0.00 64.2 74.89 59.0
10/2/2011 36.4 29.5 0.00 , 0.00 0.00 0.00 62.5 70.93 54.5
10/3/2011 32.6 26.5 0.11 ' 0.14 0.09 0,11 60.4 69.17 52.3
10/4/2011 15.2 12.4 0.18 0.12 0.12 0.13 53.2 63.01 47.0
10/5/2011 38.7 31.5 0.08 • ' 0.11 0.06 0.03 49.9 57.43 44.5
10/6/2011 7.4 6.2 0.22 0.3: 0.18 0.16 38.0 44.56 30.8
10/7/2011 8.3 7.1 0.00 0.00 0.00 0.00 34.4 45.04 27.8
10/8/2011 7.7 6.6 0.03 0.03 0.04 0.02 32.2 39.25 27.8
10/9/2011 8.0 6.7 0.00 0.00 0.00 0.00 35.8 42.8 29.7
10/10/2011 16.9 14.1 0.02 ' 0.04 0.00 0.00 44.5 54.4 35.5
10/11/2011 8.8 7.3 0.08 0.07 0.01 0.01 46.5 55.5 37.6
10/12/2011 16.5 13.7 0.00 0.00 0.00 0.00 47.1 57.2 37.6
10/13/2011 22.1 18.0 0.00 0.00 0.00 0.00 53.0 636 416
10/14/2011 22.9 18.6 0.00 0.00 0.00 0.00 57.4 65.4 50.3
10/15/2011 38.9 31.3 0.00 0.00 0.00 0.00 61.6 72.9 51.9
Running 22.3 18.2 Total 0.72 0.82 0.5(1 0.46 Average 49.4 58.4 41.9