REP36827

• Permit No: M1977215
• IBM Index Class Name: Report
• Doc Date: 4/30/1996
• Doc Name: BULLDOG PROJECT MINERAL CNTY CO LOWER TAILINGS POND REMEDIATION SUMMARY REPORT
• From: HOMESTAKE
• To: DMG
• Media Type: D
• Archive: No

' TABLE 6B
BULLDOG MQ1YE - CREEDE, COLORADO -LOWER TAILING POND - PlEZOMETER WP-)0

LJ

t

LJ

1

~I
Sam le
p
Date Piezometer
Weter
Elevation Free Cyanide

(ppm) Total Lead

(ppm) Total Zint

(ppm) Total Copper

(ppm)
1 Jan 84 8826.60 0.01 0.46 0.49
6 Feb 84 8826.60 O.OI
6 Mar 84 8827.14 0.01 0.04 0.37
2 Apr 84 8827.50 0.01 0.18 0.14
8 May 84 8827.60 0.01 0.12 0.06

6 Jun 84
8827.70
0.01
0.05
0.05 i
3 Jul 84 8827.80 0.01 0.05 0.10
6 Aug 84 8828.00 0.01 0.05 0.20
5 Sep 84 8828.20 0.01 0.05 O.18
1 Oct 84 8828.10 0.01
5 Nov 84 8828.00 0.01
5 Dec 84 8827.90 0.01
7 Jan 85 8827.31 0.01
25 Aug 85 8825.61 O.OI 0.10 0.08 0.01 I
30 May 86 6824.78 <0.02 0.02 0.13 0.02 ~
12 Dec 86 8825.83 <0.01 0.01 O.l l 0.03
29 May 87 8825.94 <0.01 0.02 0.14 0.01
I D Dec 87 8825.36 0.02• 2.90 1.10 0.20
6 Apr 88 8824.65 0.01 N 0.87 0.08 0.54
13 Jul 88 8824.11 <0.01~ NS NS NS j
6 Sep 88 8824.11 <O.OI@ 0.48 0.31 O.16
14 Nov 88 8822.28 0.01 @ <0.30 <0.30 0.21
IO Feb 89 8823.61 <0.01@ 0.91 0.09 0.04
6 May 89 8823.}6 <0.01(a, NS (I) 0.23 0.04
3 Oct 89 8832.51 <O.OI@ 0.77 0.52 0.86
~0 Nov 89 8823.31 <0.01@ 1.30 1.00 0.33
4 Jan 90 8823.28 <0.01& 1.90 1.50 0.24
4 Jun 90 8823.28 <0.01& <0.05 0.09 0.04
9 Sep 90 8823.1 I <0 018 0.I I 0.14 0.07
5 Dec 90 8923.45 <O.OI& <ppl 0.06 0.02 ~
30 Apr 91 8823.28 <O.DI& <0.05 0.06 0.02
251une93 ND 0.11 O.IS 0.07
' NS: No Samplc Collected. DRY-NS: No Wa[cr; Thcrcforc No Sample Collected. (I) Laboratory analysis inadvcrtently conduc[cd for iron rather Nan
1cad. Iron concentrations were 37, 10, 2 and 2 mg11, rcspectivcly. (EPA Methods For"kee" CN): 'Method 412.8, aMethod 331.1, @Method D-2036-