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GENERAL36598
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GENERAL36598
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Entry Properties
Last modified
8/24/2016 7:57:04 PM
Creation date
11/23/2007 8:47:19 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981032
IBM Index Class Name
General Documents
Doc Date
5/25/1982
Doc Name
UPDATE ON COMPLIANCE WITH STIPULATIONS IN 08/11/1981 APPROVAL TO MINE UNDER CURTIS CREEK & REQUEST
From
NORTHERN COAL CO
To
MLRD
Permit Index Doc Type
STIPULATIONS
Media Type
D
Archive
No
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i ~ ~~ <br /> <br />I'np,c .: <br />llnvn Shcl r~~n <br />'fn summ.'lriz_ our plans; ~:~~ intend to nro,;ress with Che develop- <br />ment .in t'ne Riena,i I•:o. 2 :tins hnsicnll.y as outlicerl in thc• <br />I~L'ty 27, 1'l'1 suba.ittnl. nr.~! the ,\up,~i:,t 11, 1931 approval; <br />however, thc• develup~.~ent ~,~~~~rlc ~ai1J. occur at a Huth slowar <br />pace than originally anticipated. <br />'dith all this bacl:.ground in mind, i.[ is probably appropriate <br />to give the Division an updaCe on our compliance s~ith, t•ne <br />stipulaCions ouClined in tl~e August 11, 1931 le[ter. Stipu_ <br />lation 1 dealt with surface water monitoring and the relocation <br />o--E a ,`lume in order to obtain better data. SThis relocation <br />has not been accomplished due to out inability Co obtain an <br />agreement from the surface owner. We have, however, maintained <br />our monitorinG program wiCh the flume in its original location.° <br />Stipulation 2 dealt wiCh the installation of an alluvial s~el] <br />over the second cast entries l•7e are now workin;; in [he second <br />east entries and driving toward the Creek but are still appro:•:i- <br />mately 700 feet from the Curtis Creek area. Eecause the seams <br />are dipping, we will be some 43O feet below the surface, approxi- <br />mately 240 feet deeper than in the first east section. This <br />stipulation was also cnntinz,e~,it upon the abili[y of ?]orthern to <br />gain access to a location Ear the well which would provide mean- <br />ingful data. Our inability to deal witl~~ the surface owner hash <br />made it impossible to install this ;ae 11 ..l <br />• Stipulation 3 dealt wiCh supplementation of existing darn by <br />underground observaCion in the first cast submair.s~+ Observa- <br />~ tions have been made b miners and tcchnir;l <br />~ y personnel contin- <br />i~ uously during minim . Underground conditions c:hich were out <br />of the ordinary or of special interest, such as e:;cess water <br />. .seepage or fractures, have been corr~lnted •:~ith past data and <br />air photo lineament pre.jections. \o correlations to aid in <br />Luture planninE were found other than the possibl.c need fcr <br />supp]emental roof support in the area of least overburden. <br />Stipulation 4 deal[ with fife phased development of tine first, <br />secnnu, an bird oast cntrics~ 'de have hcen able to maintain <br />a staggered development as the first east entries are already <br />several hundrec] yards pas[ Che Curtis Creel: alluvium and hava <br />shown no problems underground. :•'e ate now in the process <br />(approximately 5 months later) of devel.opiny the second east <br />enCric~. <br />Stipulation 5 dealt with subsidence monitoring. t:orthern has _ <br />•~ installed a sySt.am of subsidence monitorin;; over Che i~irst eas[_~ <br />" entries. UryF ~A-ti L~u da CCly, Chase mo u!imC nC~s were not set in con-~ <br />,~ ~• Crete and Chcv have exhihitod same movement '•ahich is most likely <br />\ ~ 'due co Eros[ heavin~_. This stipul.aCion also calls for. concre[c- <br />based r.ionumonts Co he placed alnn;, [he second cast ar.d third <br />~~ east cntrics along Che highway right-o`-way. This stipulation <br />~ was originally unposed by the Il.ivisi.on and agreed Co by \orthern <br />.~~ <br />i <br />
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