1990-04-27_REPORT - C1980005 ‎(3)‎

• Permit No: C1980005
• IBM Index Class Name: REPORT
• Doc Date: 4/27/1990
• Doc Name: 4th Annual Topsoil and Spoil Monitoring Report 1989 Field Season
• To: DRMS
• Permit Index Doc Type: Annual Reclamation Report
• Email Name: DTM
• Media Type: D
• Archive: No

Table 1
Postmine Ground and Surface Water Nitrate Nitrogen
(NO 3-N) Data (1) for the Southern Portion of
' the Wadge Mining Area,
Seneca II Mine, Routt County, Colorado
NPDES Pond Site Spoil Spring Site
' DA-0004(2) - BP-0001(2)
Sample NO N Sample NO -N
Date Value Date Value
' 03/08/83 1.34 06/02/86 6.88
04/14/83 5.70 09/03/86 3.10
07/13/83 4.80 03/02/87 1 .40
' 10/06/83 13.80 06/15/87 1.01
01/19/84 8.80 09/07/87 0.41
04/10/84 4.04 03/04/88 2.42
07/17/84 2.47 06/14/88 2.96
' 10/02/84 0.40 09/07/88 0.88
03/07/85 3.70 03/06/89 1.54
06/05/85 3.83 05/02/89 9.33
t 09/05/85 0.02 09/19/89 1 .02
03/04/86 9.67
04/08/86 8.23
06/02/86 4.08
09/03/86 0.02
03/02/87 0.51
06/12/87 0.02
' 09/07/87 0.03
03/04/88 1.42
06/14/88 0.06
' 09/07/88 <0.02
03/06/89 0.94
O5/02/89 6.03
09/19/89 0.02
Mean 3.33 2.81
Standard Deviation 3.69 2.68
' (1)Units are mg/l for all NO -N values.
(2)See Exhibit 7-2, Hydrology Monitoring Site Location Map, Seneca II Hydrology Report for the
1989 Water Year.
12
PEABODY COAL COMPANY
Western Division