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~PPc/.1'JIX C - ~~s;4reRa~ ANA ~~u~~ ~e~J LMev~t~na~s FoR A~ Fo,~as . <br />Stipulation No. 3 <br />WITHIN 60 DAYS OF PERMIT ISSUANCE, THE PERMITTEE MUST <br />• SUBMIT CALCULATIONS SHOWING THE AMOUNT THE GATED SPILL- <br />WAYS ON THE NORTHERN N0. 1 PORTAL/COAL STOCKPILE, REFUSE <br />DISPOSAL AREA, AND RIENAU N0. 2 SEDIMENT PONDS MUST BE <br />• OPENED TO ALLOW FOR AUTOMATIC DEWATERING WITH AN AVERAGE <br />RETENTION TIME OF 24 HOURS. <br />IN ADDITION, THE PERMITTEE MUST SUBMIT DESIGNS AND SUPPORTING <br />CALCULATIONS FOR AN AUTOMATIC DEWATERING DEVICE WHICH <br />ALLOWS AN AVERAGE RETENTION TIME OF 24 HOURS TO BE INSTALLED <br />IN THE NORTHERN N0. 1 OFFICE AREA SEDIMENT POND. THE <br />AUTOMATIC DEWATERING DEVICES AT THE NORTHERN N0. 1 <br />FACILITIES MUST BE INSTALLED BY FALL OF 1985• <br />Northern Coal's Answer: <br />The opening's required are detailed on the following <br />pages along with the supporting calculations. <br />A small area exemption has been applied for that will <br />eliminate the pond below the now vacated office site. <br />A copy of the exemption is included for reference. <br />• <br />• <br />~ / ~ ~g7 <br />