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Parameter <br />PQLs <br />Parameter <br />PQLs <br />Aluminum <br />50 µg/I <br />Mercury <br />0.1 µg/I <br />Ammonia <br />1 mg /I <br />Mercury (low - level) <br />0.003 µg/I <br />Arsenic <br />114/1 <br />Nickel <br />50 µg /1 <br />Barium <br />5 µg/I <br />N- Ammonia <br />50 µg /I <br />Beryllium <br />1 µg /I <br />N Nitrate /Nitrite <br />0.5 mg/I <br />BOD / CBOD <br />1 mg/I <br />N- Nitrate <br />5014/1 <br />Boron <br />50 µg /1 <br />N- Nitrite <br />1014/I <br />Cadmium <br />114/I <br />Total Nitrogen <br />0.5 mg /I <br />Calcium <br />2014/1 <br />Phenols <br />10014/1 <br />Chloride <br />2 mg /I <br />Phosphorus <br />1014/I <br />Chlorine <br />0.1 mg /I <br />Radium 226 <br />1 pCi /I <br />Total Residual Chlorine <br />Radium 228 <br />1 pCi /I <br />DPD colorimetric <br />0.10 mg /I <br />Selenium <br />1 µg /1 <br />Amperometric titration <br />0.05 mg /I <br />Silver <br />0.514/I <br />Chromium <br />20 µg/1 <br />Sodium <br />0.2 mg/I <br />Chromium, Hexavalent <br />20 µg /1 <br />Sulfate <br />5 mg /I <br />Copper <br />5µg /I <br />Sulfide <br />0.2 mg /I <br />Cyanide (Direct / Distilled) <br />10 vg/1 <br />Total Dissolved Solids <br />10 mg/I <br />Cyanide, WAD +A47 <br />5 vg/1 <br />Total Suspended Solids <br />10 mg /I <br />Fluoride <br />0.1 mg /I <br />Thallium <br />1 µg /1 <br />Iron <br />1014/I <br />Uranium <br />1 vg/1 <br />Lead <br />1 µg /I <br />Zinc <br />1014/I <br />Magnesium <br />20 µg /I <br />Nonylphenol D7065 <br />10 µg /I <br />Manganese <br />2 µg /1 <br />Nonylphenol D7485 <br />0.33 µg /I <br />Theisen Mineral —Red Mountain Open Spaces <br />Page 3 of 5 <br />permittee's analytical result is less than the PQL, "< X" (where X = the actual PQL achieved by the laboratory) shall be reported on <br />the DMR. For parameters that have a report only limitation, and the permittee's analytical result is less than the PQL, "< X" <br />(where X = the actual PQL achieved by the laboratory) shall be reported on the DMR. <br />In the calculation of average concentrations (i.e. 7- day average, 30 -day average, 2 -year rolling average), any individual analytical <br />result that is less than the PQL shall be considered to be zero for the calculation purposes. When reporting: <br />If all individual analytical results are less than the PQL, the permittee shall report either "BDL" or " <X" (where X = the <br />actual PQL achieved by the laboratory), following the guidance above. <br />If one or more individual results is greater than the PQL, an average shall be calculated and reported. Note that it does <br />not matter if the final calculated average is greater or less than the PQL, it must be reported as a value. <br />Note that when calculating T.I.N. for a single sampling event, any value less than the PQL (for total ammonia, total <br />nitrite, or total nitrate) shall be treated as zero. The T.I.N. concentration for a single sampling event shall then be <br />determined as the sum of the analytical results (zeros if applicable) of same day sampling for total ammonia and total <br />nitrite and total nitrate. From these calculated T.I.N. concentrations, the daily maximum and thirty day average <br />concentrations shall be calculated and must be reported as a value. <br />The present lowest PQLs for specific parameters, as determined by the State Laboratory (November 2008) are provided below. If <br />the analytical method cannot achieve a PQL that is less than or equal to the permit limit, then the method, or a more precise <br />method, must achieve a PQL that is less than or equal to the PQL in the Table H -1 below. A listing of the PQLs for organic <br />parameters that must meet the above requirement can be found in the Division's Practical Quantitation Limitation Guidance <br />Document, July 2008. <br />These limits apply to the total recoverable or the potentially dissolved fraction of metals. <br />• Certification Records Information: The table below provides the information contained in Division records for this certification. <br />Any changes to the contacts listed below must be provided to the Division on a "Notice of Change of Contacts" form, and must be <br />signed by the legal contact. This form is available on the Division's website at www.coloradowaterpermits.com. <br />