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Surface water monitoring in accordance with Stipulation No. 1 is ongoing at <br />the mine. Technical Revision 4, however, reduced the monitoring frequency <br />from quarterly to semiannually. <br />STIPULATION N0. 1 <br />THE PERMITTEE WILL PERFORM THE MONITORING OUTLINED BELOW AND SUBMIT <br />HYDROLOGIC MONITORING REPORT ANNUALLY IN JANUARY TO THE DIVISIOIJ <br />INCORPORATING THE FOLLOWING MONITORING DATA. <br />SURFACE WATER <br />1. MONTHLY MONITORING OF THE HARVEY GAP RESERVOIR OUTLET AND THE <br />SAMPLE SITE DESIGNATED AS HARVEY GAP BELOW THE MINE (ON MAP HGP-18). <br />THIS MONTHLY MONITORING MUST INCLUDE FLOW AND FIELD PARAMETERS. <br />SEMI-ANNUAL SAMPLES ARE TO BE TAKEN FOR THE FULL SUITE CHEMICAL <br />PARAMETERS AS DESIGNATED LATER IN THIS SECTION. <br />2. SEMI-ANNUAL MONITORING OF THE HARVEY GAP RESERVOIR SEEP INCLUDING <br />FLOW AND FIELD PARAMETERS. <br />3. COMPILATION OF ALL DATA SUBMITTED TO THE COLORADO DEPARTMENT OF <br />HEALTH FOR COMPLIANCE WITH THE NPDES PERMIT SAMPLING REQUIREMENTS, <br />INCLUDING SALINITY. <br />GROUND WATER <br />1. CONTINUATION OF AN INFLOW STUDY AT THE MINE WITH THE SOURCES OF <br />SEEP$ MAPPED ONCE YEARLY. FLOWS AND FIELD PARAMETERS SHALL BE SAMPLED <br />AS PRACTICABLE. A HEAVY INFLOW MONTH SUCH AS JULY WILL BE CHOSEN FOR <br />INFLOW MAPPING. ANY NEWLY DEVELOPED SOURCES OF INFLOW THAT HAVE FLOW <br />OF 0.5 GPM OR GREATER WILL BE TESTED ONE-TIME FOR THE FULL SUITE OF <br />CHEMICAL PARAMETERS. <br />2. PUMPAGE RATES FROM THE MINE TO THE SEDIMENT PONDS WILL BE RECORDED <br />WITH THE MINE WATER TESTED QUARTERLY FOR FIELD PARAMETERS AND ONCE <br />YEARLY FOR THE FULL SUITE OF CHEMICAL PARAMETERS. <br />3. THE GEOTECH WELL, LOCATED AT THE PROJECTED BASE OF THE REFUSE PILE <br />AND COMPLETED IN THE ALLUVIUM, WILL BE SAMPLED MONTHLY FOR WATER LEVEL <br />AND FIELD PARAMETERS AND QUARTERLY FOR FULL SUITE CHEMICAL PARAMETERS. <br />FIELD PARAMETERS <br />TEMPERATURE <br />pH <br />CONDUCTIVITY <br />FLOW OR WATER LEVEL <br />FULL SUITE CHEMICAL PARAMETER <br />pH MAGNESIUM <br />TEMPERATURE SULFATE <br />SPECIFIC CONDUCTANCE FLUORIDE <br />DISSOLVED SOLIDS BORON <br />SODIUM ALKALINITY <br />POTASSIUM BICARBONATE <br />CALCIUM <br />Stipulation No. 2 of the original <br />desion for a non-clogging orifice <br />Volume II of the Eastside permit <br />from the Division to the operator <br />permit issuance required submittal of a <br />in Pond SP-2. This is shown on Drawing 4, <br />application, and was approved in a letter <br />dated April 4, 1985. <br />-6- <br />