PERMFILE57005

• Permit No: C1980005A
• IBM Index Class Name: Permit File
• Doc Date: 5/20/2005
• Section_Exhibit Name: Tab 7 Hydrology
• Media Type: D
• Archive: Yes

1
Table 7-8. Chemical Analyses of Groundwater
From the Wadge Coal Seam,
Seneca Mine, Routt County, Colorado
Well No.
Aquifer: Madge Coal Seam
Date of Collection
Analysist GW-517

11/7/79
Peabody GW-S17

11/9/79
USGS GW-S17

5/21/80
Peabody GW-S17

12/9/80
Peabody GW-519

11/8/79
Peabody GW-S19

11/8/79
USGS GW-S19

5/21/80
Peabody GW-S19

12/4/80
Peabody GW-S40-W

11/20/60
Peabody
FIELD PARAMETERS
Temperature (°C) 8.7 8.8 12.5 9.0 9.0 9.0 9.0 7,0 9.0
Conductivity (umhos/cm @ 25° C) 1700,0 1700.0 210.0 2500.0 2500.0 1575.0
pH (units) 8.0 8.1 7.9 11.5 11.5 9.6
LABORATORY PARAMETERSI
Acidity (as CaC03)2 -224,0 -457.0 -464,0 -811.0
Alkalinity (as CaL03) 242.0 220.0 479.0 462,0 465.0 460.0 846,0 830.0 402.0
Alkalinity, Bicarbonate (as CaC03) 242.0 462,0 0.0 478,0 590.0 402.0
Alkalinity, Carbonate (as CaC03) 0.0 116.0 366.0 240,0
Aluminum, Total 0,5 0.01 <0.2 0.3 0.4 0.06 0.3 <0.2 4,1
Antimony 0.002 <0.002 <,002
Arsenic 0,001 0.002 <0,001 <0.001 0.001 <0.001
Barium <0.2 <0.2 0.8
Boron 0,099 0,180 0.262 0.473 0,097 0.180 0,376 0,377 0,433
Cadmium <0.001 0.000 <0.002 <0.002
Calcium 132,0 120,0 14.0 70,0 3.0 8.9 2,0 <2,0 47.0
Chloride 14,0 15,0 12.0 15.0 14,0 7.3 7,0 6.0 4.0
Chromium <0.04 0.03 <0.04 <0,02 <0.04 0.07
COD 21,7 12,7
Conductivity (umhos/cm @ 25° C) 1928.0 1939.0 2560.0 2710.0 2400.0 2620.0 1420.0 1400.0 730.0
Copper <0.06 0.012 <0.02 <0,06 0.004 0.02 <0.02 0.04
Fluoride 0.62 0.6 0.98 1,03 1.35 1.3 2,62 2.60 0,53
Hardness, Tatal 615.0 610.0 310.0 10,0 33.0 31.0 27.0 235.0
Hardness, Non-carbonate 390.0 0.0
Hydroxide 0.0 369.0 5.0 0.0
N
a
v
u,
.~
v
o'
N
r.
Table 7-8 continued on next page.