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METHANE AND DUST CONTROL PRACTICES ON THE WORKING SECTION <br />• ~ CONTINUOUS MINER <br />• <br />-. <br />• <br />Mine Name: Southfield Mine <br />MSHA Mine ID No.: 05-03955 <br />MSHA MMU No.: 003-0 <br />Designated Occupation Code: 036 <br />Continuous Miner Serial No.: Marietta <br />Current Section Name: 3rd Subpanel <br />South <br />Section Haulage Equipment: 2 Joy 10SC <br />Belt Air Used at the Face: No <br />..::.~_. <br />.,>..a <br />•A~ . <br />-u~~ <br />;'~~ s <br />.:.r:'~ <br />:~:i':. ~ <br />:,• ~~ <br />3080 A7781 <br />Off of Panel "D" Off.2nd <br />... . <br />The following parameters are hereby adopted into the Ventilation',-.'; <br />System and Methane and Dust Control Plan as per 30 CFR 75.316: ,;~';~^ <br />r~ w <br />1. Minimum air quantities shall be as follows: ••';•`~{gG <br />at working faces: 10,000 cfm '' ''.*j;~` <br />at idle faces: Proper volume as to maintain methane to'less~.~~ <br />than 1$ as required by 75.308 ,;;w <br />at the last open crosscut: 15,000 cfm •:•~:'~ <br />at the intake end of the pillar line: 15,000 cfm ;.,,,,,,~~ <br />2. The minimum mean entry air velocity in the working face.; <br />shall be 60 ft/min. .:;~~~ <br />3. The maximum distance the line curtain is maintained from the;;'S~; <br />point of deepest penetration of the face shall be: 20 feet;~~; <br />for working faces, 20 ft. for idle faces. °-+~ <br />4. The following water spray systems will be used to control'.;;, <br />dust on the specified equipment. The number of sprays.indi=~"~ <br />Gated are the actual total number of sprays on.the:•equip'=` <br />ment. ;.;'.,~ ..r <br />„~d•~!. <br />~:s:: ,~ <br />- ~ Minimum , `=''~,: <br />Spray T~ <br />Equipment No. of Type of Operating ';;~5 <br />Description Sprays Sprays Pressure Flowrate <br />=' ~~Mt~ <br />Continuous Miner 15* Mist Fog $2 or 90 PSI .60~+GPH/, <br />i!3 or Equivalent `` Spray' <br />Feeder Breaker 2** Mist Fog ~2 o1r,'~t~;'~~.iJ G~llJ lk ~~ `~~, '(]J <br />p3 or Equivalent ~ •~'"(:•~ <br />•„~.+~ <br />5. See Page 22 for a spray schematic of the continuous miner~;y;1 <br />listed above showing the location of the minimum number~.of.e~ <br />water sprays to be maintained and operated in each .aiea~u-'+•,'~; <br />(bank) of the equipment. .:..%r <br />6. Other controls or practices: <br />1. Haulage and supply roads will be in a damp or compaet.~; <br />condition to maintain the average concentration-of res-';^.;: <br />pirable dust at or below 2.Omg/m3 of air. ;'.:~;~ <br />7. Notes: <br />* At least 90% of the water sprays shall be maintained~in.~'~ <br />oroloadedative condition prior to coal being cut, min'ed;,j <br />_' ~~?*'~ <br />** To be used when dust control in this area is determined'•~r^ <br />necessary, as mentioned on Page 15, Item IV, 3 of thi's~t~'~i! <br />P 1 a n . _ ,yr~~~.ar~, <br />Mine Ma ager Date ~.••i :~.'k~a~..,: <br />