2018-08-08_PERMIT FILE - C1982056 ‎(16)‎

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 8/8/2018
• Section_Exhibit Name: Exhibit 49O 6MN Mine Water Storage Reservoir Design Drawings ‎(TR61)‎
• Media Type: D
• Archive: No

FALLING HEAD PERMEABILITY CALCULATION
PROJECT: 6MN Pond 2
NUMBER: 07-7556
DATE: Jul-07
PERM NO. 1
MATERIAL Proc#or 2P ><~'«~~~.&< MDD <:2°~ti3% OMC

SAMPLE Impoundment 6
k = 2.303 * a*UA*t {log h1/h2)
- - - - >:
:ice "°~ f:.,:ari~~`e#~r ~`<~«`>r>::>? r:°::...

:...._............s:.:::: ~.:::.::::,,:::::::>::.,,:.

alue

nits
-

H 1 -Initial reading

;:...~
s ~::>;>.;:;,>~:.; ::
::f.<::~~;>::>'i:~f3~~.x.-'

m
a =area of stand i e
P~p
0.635
cm2
N 2 =final reading ~:<:>:;1<:;>:;::>:::
_.;>»:93u;
j.,`
cm
A =Area of sample {brass liner} 19.17 cm2 log h1h-2 0.04074
L =length of sample ---s3:~4~ inches t =elapsed Time ~::'-'>>!"'~.~#~~ seconds
8.47344 cm k = permeabili 3.04E-08 cmJsec
TEST READINGS
Date Time 1 h 1 Time 2 h 2 Elapsed Time
hours seconds rate per hour
~k:(31~''fS:....:.:... .;:.::.~12. X4(3:::.:: ~::.....3~.~. . 7.~A~ gp~.•'::<: :::;•:>.. 9'~.,~ . ... ~•4ltf;~• 866412 0.0374

• PERM N0.2
MATERIAL Proctor 3P - is>"it3'.3~~` MDD ~#~o~ r:> OMC

SAMPLE Impoundment 6
k = 2.303 * a*UA*t (log h1Jh2)

p.......t~e ~C$ .:::::.::..:.::::•:.:«:,.;::..
alue
Units
H 1 -Initial reading ....:.....:..:.:.:::...:.
<=?3?>~-~i<::>'tfl~~;
cm
a =area of standpipe 0.635 cm2 H 2 =final readin
g "~~"~~ ~<`?
~~>~
~.•~.•~~
cm
A =Area of sample (brass liner) 19.17 cm2 log h1/h2 0.25527
L =length of sample - -- `:'~ £~ inches t =elapsed time `.':~':-8fi88 seconds
7.239 cm k= ermeability 1.83E-07 cmisec
TEST READINGS
Date Time 1 h 1 Time 2 h 2 Elapsed Time
hours seconds rate per hour
'l £i DA'YS...... <=':::: <~:~~=;:7~ 0..... ...... a ~~,~ , .71'12 `c'~:9Dit:~'. :::~: <:. 67,:5: :>':;:: `~4~ $3 866988 0.1910

J