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<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.
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