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-3- <br />Stipulation No. 12: <br />AFTER A THOROUGH REVIEW OF THE BASELINE WATER QUALITY DATA, THE <br />OUERBURDEN CHEMISTRY DATA SUBMITTED BY CF&I, APJD THc RECEIVING STREAM <br />STANDARDS, THE DIVISION REQUIRES MONITORING TO INCLUDE THE FOLLOWING: <br />A) MONTHLY MONITORING OF THE PURGATOIRE RIVER UPSTREAM OF THE ALLEN <br />MINE, AND THE PURGATOIRE RI'JER BELOW THE COAL REFUSE PILES, AND THE <br />ALLEN .MINE DISCHARGE. THE PARAMETERS TO BE MONITORED INCLUDE FLOW, <br />FIELD pH, FIELD ELECTRO-CONDUCTIVITY AND FIELD WATER TEMPERATURE. <br />B) MONTHLY MONITORING OF THE ALLUVIAL WELLS ALONG THE MIDDLE FORK <br />UPSTREAM AND DOWNSTREAM OF THE ALLEN MINE. THE PARAMETERS TO BE <br />MONITORED I4ICLUDE GRO'UPJD ',DATER LEVELS, FIELD pH, FIEL'J <br />ELECTRO-CONDUCTIVITY, ANU FIELD WATER TEMPERATURE. <br />C) MONTHLY MONITORING OF THE ALLUVIUM OF APACHE, CIRUELA, AND PETE <br />CANYONS FOR GROUND WATER LEVELS. <br />D) QUARTERLY MONITORING, (FEBRUARY, MAY, AUGUST, APJD NOVEMBER) OF <br />ALLEN MINE DISCHARGE. THE PARAMETERS TO BE J40NI70RED INCLUDE FLOW, <br />FIELD pH, FIELD ELECTRO-CONDUCTIVITY, FIELD WATER TEMPERATURE, <br />TURBIDITY, TOTAL SUSPENDED SOLIDS, TOTAL DISSOLVED SOLIDS, TOTAL <br />COMBUSTIBLE SOLIDS, TOTAL HARDNESS, TOTAL IRON, TOTAL f4.4NGANESE, <br />AND PARAMETERS REQUIRED UJVUER THE PERMITTEE'S NPDES PERMIT. <br />E) ANNUAL MONITORING (NOVEMBER) OF THE MIDDLE FORK OF THE PURGATOIRE <br />RIVER UPSTREAM OF THE ALLEN MINE, BELOW THE COAL REFUSE PILES AND <br />THE ALLEN .MINE DISCHARGE. THE PARAMETERS TO BE MONITORED INCLUDE <br />THE FIELD PARAMETERS IDENTIFIED ABOVE IN THIS STIPULATION, PLUS <br />DISSOLVED OXYGEN, TURBIDITY, TOTAL SUSPENDED SOLIDS, TOTAL <br />COMBUSTIBLE SOLIDS, TOTAL DISSOLVED SOLIDS, TOTAL HARDIESS, AND <br />TOTAL RECOVERABLE MEASUREP~IENTS FOR THE IONS CARBONATE, BICARBONATE, <br />CHLORIDE, SULFATE, AMMONIA, NITRATE/NITRITE, CALCIUM, MAGNESIUh1, <br />POTASSIUM, SODIIkM, BORON, CADMIUPI, COPPER, IRON, LEAD, MANGANESE, <br />MERCURY, NICKEL, SELENIUM, ZINC, SILVER, AND A DETERMINATION OF SAR. <br />F) ANNUAL MONITORING (NOVEMBER) OF THE ALLUVIAL WELLS ALONG THE IdIDDLE <br />FORK ABOVE AND BELOW THE ALLEN MINE. THE PARAMETERS TO BE <br />MONITORED INCLUDE GROUND WRIER LEVELS, FIELD pH, FIELD <br />ELECTRO-CONDUCTIVITY, FIELD WATER TEMPERATURE, TOTAL DISSOLVED <br />SOLIDS AND DISSOLVED IONS MEASUREMENTS FOR CARBONATE, BICARBONATE, <br />CHLORIDE, SULFATE, SULFIDE, AMMONIA, NITR,4TE/NITRITE, CALCIUM, <br />MAGNESIUM, PUTASSiUM, SUDIU~M, BORON, CAD~~JIUM, COPPER, IRON, LEAD, <br />MANGANESE, MERCURY, NICKEL, SELENIUM, ZINC, SILVER, AND A <br />DETERMINATION OF SAR. <br />G) SUBMIT ALL SURFACE AND GROUND WATER MONITORING DATA QUARTERLY. <br />H) MONITORING REQUIREMENTS MAY BE REDUCED BY THE DIVISION UPON THE <br />SUBMITTAL OF ADDITIONAL DATA AND A FURt+IAL REDUCTIUiJ REQUEST. <br />