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PART I <br />Page 12 of 22 <br />Permit No.: CO-0001244 <br />Parameter Practical <br />Quantitation <br />Limits Parameter Practical <br />Quantitation <br />Limits, /l <br />Aluminum 50 gg/I Manganese 2 Ag1I <br />Ammonia 1 mg/1 Mercury 0.1 1 <br />Arsenic 1 I Mercury low-level 0.003 pg/l <br />Barium 5 pg/I Nickel 50 gg/I <br />Beryllium 1 jig/I N-Ammonia 50 pg/I <br />BOD / CBOD l mg/1 N Nitrate/Nitrite 0.5 mg/1 <br />Boron 50 1 N-Nitrate 50 lig/I <br />Cadmium 1 1 N-Nitrite 10 gg/I <br />Calcium 20 pg/l Total Nitrogen 0.5 mg/1 <br />Chloride 2 mg/1 Phenols 100 1 <br />Chlorine 0.1 mg/1 Phosphorus 10 ?Lg/l <br />Total Residual Chlorine Radium 226 1 Ci/1 <br />DPD colorimetric 0.10 mg/1 Radium 228 1 Ci/1 <br />Am erometric titration 0.05 mg/1 Selenium 1 gg/I <br />Chromium 20 1 Silver 0.5 gg/I <br />Chromium, Hexavalent 20 1 Sodium 0.2 mg/1 <br />Copper 5 gg/l Sulfate 5 m /I <br />Cyanide (Direct / Distilled 10 gg/I Sulfide 0.2 mg/1 <br />Cyanide, WAD+A47 5 pg/l Total Dissolved Solids 10 m /I <br />Fluoride 0.1 mg/1 Total Suspended Solids 10 mg/1 <br />Iron 10 1 Thallium 1 jig/I <br />Lead 1 Pg/l Uranium 1 gg/I <br />Magnesium 20 gg/I Zinc 10 Pg/I <br />4. Records <br />The permittee shall establish and maintain records. Those records shall include the following: <br />a. The date, type, exact location, and time of sampling or measurements; <br />b. The individual(s) who performed the sampling or measurements; <br />c. The date(s) the analyses were performed; <br />d. The individual(s) who performed the analyses; <br />e. The analytical techniques or methods used; <br />f. The results of such analyses; and <br />g. Any other observations which may result in an impact on the quality or quantity of the discharge as indicated in 40 CFR <br />122.44 (i)(1)(iii). <br />The permittee shall retain for a minimum of three (3) years records of all monitoring information, including all original strip <br />chart recordings for continuous monitoring instrumentation, all calibration and maintenance records, copies of all reports <br />required by this permit and records of all data used to complete the application for this permit. This period of retention shall <br />be extended during the course of any unresolved litigation regarding the discharge of pollutants by the permittee or when <br />requested by the Division or EPA. <br />5. Flow Measurine Device <br />If not already a part of the permitted facility, within ninety (90) days after the effective date of the permit, a flow measuring <br />device shall be installed to give representative values of effluent quantities at the respective discharge points. Unless <br />specifically exempted, or modified in Part I.E.5 of this permit, a flow measuring device will be applicable at all designated <br />discharge points. <br />At the request of the Division, the permittee shall show proof of the accuracy of any flow-measuring device used in obtaining <br />data submitted in the monitoring report. The flow-measuring device must indicate values within ten (10) percent of the actual <br />flow being discharged from the facility.