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modify their future AHR presentation to include baseline and <br />operations water quality monitoring up to the present. <br />7. In the AHR, OSM would like to see graphs of flow versus time <br />for all of the discharging NPDES sites.. Only the larger pond <br />discharges were graphed. The smaller ponds which had <br />discharged still had data presented, just not in graphical <br />form. <br />The Division sees benefit in this suggestion. The Division <br />requests that Trapper modify their future AHR presentation to <br />include baseline and all previous operational water quality <br />data. <br />8. In the AHR, OSM would like to see the term "no flow" used for <br />those sampling dates when a spring was not flowing, as opposed <br />to leaving the space blank. <br />The Division agrees that not having blank spaces in a data set <br />is good policy for any kind of data. The Division requests <br />that Trapper use the term "no flow" when applicable, in future <br />AHR's. <br />9. OSM reviewed the Division's adequacy letter for Trapper's 1994 <br />AIiR, and will review the Division's adequacy letter for the <br />1995 AHR as soon as the Division finishes the adequacy review, <br />FIELD I88UE8 <br />10. A small percentage of water quality lab reports stated that <br />the water samples had exceeded the maximum holding time. <br />Trapper stated that the lab is in Denver, but that they could <br />look into using a lab closer to Craig. <br />The Division asked Trapper for data that would show the number <br />of times and to what degree that the exceedences occurred. <br />Trapper reported that for all of 1996, up to October 23, 1996, <br />there were only five settleable solids and one nitrate samples <br />that had been analyzed beyond the recommended 48 hour holding <br />time. The exceedences of holding times were 15 minutes, 5 <br />hours 25 minutes, 1 hour, 3 hours 30 minutes, 1 hour 20 <br />minutes and 50 minutes. All of the settleable solids analyses <br />showed concentrations at or below the detection limit. The <br />nitrate sample tested at .83 mg/1. There is no compliance <br />limitation in the NPDES permit or in the Colorado <br />Classification and Numeric Standards (receiving stream <br />standards) for Trapper in regard to nitrate. The material <br />damage suspect level for nitrate, for domestic drinking water, <br />is l0 mg/1. <br />5 <br />