GENERAL39234

• Permit No: M1980244
• IBM Index Class Name: General Documents
• Doc Date: 10/7/1994
• Doc Name: CRESSON PROJECT PN M-80-244 CONFIRMATION OF GRAIN SIZES OF PAD 2 MATERIAL FOR DRAIN COVER FILL
• From: CRIPPLE CREEK & VICTOR MINING CO
• To: DMG
• Media Type: D
• Archive: No

Table 1: Grain Size Distribution Summary Table
Sieve Percent Percent Percent Percent Percent Percent Percent Percent Pond Pad
No. Finer
Than
No. 5-2 Finer
Than
No. 5-3 Finer
Than
No. 5-4 ~ Finer
~ Than ~
No. 5-5 ~ Finer
Than
No. 5-6 Fnner
Than
No. 5-7 Finer
Than
No. 5-8 Finer
Than
Na. 5-9 Na of
Tests
In Spec. Drain
Cover
Spec. Na of
Tests
In Spec. Drain
Cover
Spec.
6 in. 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
2 in. 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
1 1/2 in. 99.5 100.0 100.0 100.0 100.0 100.0 100.0 100.0 7 100
1 in. 97.6 98.6 99.7 97.6 98.2 100.0 97.5 100.0 2 100
3/4 in. 86.1 82.2 87.1 73.3 78.8 95.1 78.9 87.1 8 70-100 5 80-100
318 in. 51.4 52.9 47.8 48.5 46.1 66.1 47.8 46.9 8 40-70 8 30-70
4 34.0 35.1 30.4 31.4 32.4 45.9 29.8 2B.4 8 5-50 7 5-40
10 22.3 22.3 18.7 18.5 22.6 30.7 17.7 18.3
20 15.4 16.2 13.1 12.1 12.5 20.9 12.0 13.2
40 11.6 13.2 10.3 9.5 11.5 15.4 9.4 10.7 8 0-20
60 9.3 11.2 8.7 8.0 9.1 11.7 7.9 9.1
100 7.5 9.7 7.3 6.8 7.3 9.2 6.8 7.7
200 5.8 8.0 6.0 5.6 5.6 6.9 5.6 6.2 B 0-B 8 0-B
Table 2: Grain Size Distribution Maximum Table 3: Grain Size Distribution Statistical Summary
Mlinimum Summary
Sieve
No. Percent
Finer
Than
(Max) Percent
Finer
Than
(Min) Pond
Drain
Cover
Spec. Pad
Drain
Cover
Spec.
6 in. 100.0 100.0
2 in. 100.0 100.0
1 t/2 in. 100.0 99.5 100
1 in. 100.0 97.5 100
3/4 in. 95.1 73.3 70-100 80-100
3/8 in. 66.1 46.1 40-70 30-70
4 45.9 28.4 5-50 5-40
10 30.7 77.7
20 20.9 12.0
40 15.4 9.4 0-20
60 11.7 7.9
100 9.7 6.8
200 8.0 5.6 0-8 0-8
Siove
No. Percent
Finer ~
Than
(Ave) Percent
Finer
Than
(St. D) Percen[
Finer
Than
+1St.D. Percent
Finer
Than
-iSLD. Pond
Drain
Cover
Spec. Pad
Drain
Cover
Spec.
bin. 100.0 0.0 100.0 100.0
2 in. 100.0 0.0 100.0 100.0
1 1/2 in. 99.9 0.2 100.1 99.8 100
1 in. 98.6 1.0 99.7 97.6 100
314 in. 83.6 6.3 89.8 77.3 70-100 80-100
3!8 in. 50.9 6.1 57.0 44.8 40-70 30-70
4 33.4 5.1 38.6 28.3 5-50 5-40
10 21.4 4.0 25.4 17.4
20 14.4 2.8 17.2 11.6
40 11.5 1.9 13.3 9.6 0-20
60 9.4 1.3 10.7 8.1
100 7.8 1.0 8.6 6.8
200 6.2 0.8 7.0 5.5 0-8 0-8

Golder Associates Inc.