GENERAL50796

• Permit No: M1980244
• IBM Index Class Name: General Documents
• Doc Date: 7/18/1994
• Doc Name: FINGER UNDERDRAIN MATERIAL ADDITION OF SPECIFICATION FOR UNDERDRAIN MATERIAL IN SMALL FLOW CHANNELS
• From: CRIPPLE CREEK & VICTOR GOLD MINING CO
• To: DMG
• Media Type: D
• Archive: No

f i •
Grain Size Distribution Analysis
~~ General Information ~ ~ ~~~ ~ ~ ~ ~~ ~ ~ ~
Jab No. 943-2732 Sample No. 3-31
Project BEI / 1994 CQA / CO Location Granite Hill
Flename S3-31.WK.1 Date 12-Jul-94
Comments Crushed material from G ranite Hifl
Underdrain Pipe Backfill
Water. Content Determination . ::.. ;.; : ' ".. No: 200 Wash
Tare No. K-4
Tare No. 2 Wet Wt. & Tare (Bef.) 2569.50 gr
Wet Wt. and Tare 1469.00 gr Dry Wt. & Tare (Bet.) 2467.80 gr
Dry Wt. and Tare 1440.90 gr Dry Wl. & Tare (Aft.) 2467.80 gr
Tare Wt. 561.50 gr Tare Wt. 235.00 gr
Wt. Water 28.10 gr Wt. Fines Lost 0.00 gr
Wl. Dry Soil 879.40 gr Wt. Dry Soil 2232.80 gr
Moisture Content 3.2 °(o Percent Lost 0.0 %
.::Dry Sieve Analysis .... .:. .: ~ ... ..... . . ..

;; ~.:Sleve ~~~ ~:
No:':.
... ~ .,

'. ~..Opening~
'Diameter

::.::::::.:..:::.::

'(microns) Cummulative
Weight ::.;

::.:Retained°:

" (grams) ' :Weight ~:.
Retained:

.:: ::..:::'..:.:...
....
(grams) .WefgM~;~
: Finer ,.:

:.::Ttiari::::
:...
: (grains) ~ ~Sieve~ ~.:.
.:Weight'.

:.:Finer

(grams) -~:.:.Total:~ .:
..: Weight,

Finer::'.,.

: (grams) : Percent.'
:.:Finer :"

' Than:•:

''..:...:' .Underdrain:
.::?;. Pipe;-::.<

:,Bacldill..';

:::: Spec.::::::
6 in. 752400 0.0 0.0 0.0 2233.4 2233.4 100.0
3 in. 76200 0.0 0.0 0.0 2233.4 2233.4 100.0 .
1 t/2 in. 50800 0.0 0.0 0.0 2233.4 2233.4 100.0
1 in. 25400 0.0 0.0 0.0 2233.4 2233.4 1D0.0
3/4 in. 19100 0.0 0.0 1934.3 2233.4 2233.4 100.0 100
3/8 in. 9500 1934.3 1934.3 247.5 299.1 299.1 73.4 40-70
4 4760 2775.8 241.5 7.0 57.6 57.6 2.6 5-50
10 2000 2182.6 7.0 7.9 50.6 50.6 2.3
20 840 2190.7 7.9 7.9 42.7 42.7 1.9
a0 420 2198.6 7.9 4.5 34.8 34.8 1.6 0-20
60 250 2203.1 a.5 14.5 30.3 30.3 t.a
100 149 2217.6 14.5 13.2 15.8 15.8 0.7
200 74 2230.8 13.2 2.6 26 2.6 0.1 0-10
Pan 2233.4 2.6
Golder Associates Inc.