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14.14 mgl1. These values were from a downstream North Thompson Creek sample of <br />September 8, 2002. <br />Numeric Standards <br />Physical and Biological <br />Dissolved Oxygen (D.O.) <br />There has been no monitoring for dissolved oxygen, thus impacts of the mine water <br />dischazges regazding dissolved oxygen aze not known. However, impacts on downstream <br />dissolved oxygen maybe insignificant, and concentrations may meet the Numeric <br />Standazd of 6.0 mg/l. Flows in North Thompson Creek aze turbulent, mine water <br />dischazge inflows aze aerated at the beginning of the treatment system, and Outfa11001 <br />dischazges aze aerated by the drop outlet and runout from outfall to the stream. <br />pH <br />Monitoring results suggest that there is no effect on the pH of North Thompson Creek <br />from Outfa11001 dischazges, and that downstream pH values are within the Numeric <br />Standazd. The Numeric Standard for pH is 6.5 - 9.0. <br />Fecal Coli (F. Coli) <br />There has been no monitoring for fecal coliforms (F. Coli), thus effects of the mine water <br />dischazges on fecal coliforms in North Thompson Creek aze not known. Sewage <br />treatment facilities at the site have been removed and disturbances reclaimed. It is <br />unlikely that any current mine-related activities have a potential for introduction of fecal <br />coliforms to North Thompson Creek. The landowner does run cattle and horses on <br />reclaimed azeas of the site. The Numeric Standazd for F Coli is 2000!100 ml. <br />Inorganic <br />Ammonia (NH3) <br />There was baseline stream and mine inflow monitoring, but no continuous of recent <br />monitoring for ammonia in North Thompson Creek. There has been no monitoring for <br />ammonia in the dischazge at Outfa11001. The Numeric Standazd (chronic) for ammonia is <br />0.02 mg/1. The results of mine inflow monitoring suggest a potential for ammonia in <br />Outfa11001 dischazges at concentrations above the Numeric Standazd. However, baseline <br />monitoring of stream flows suggests that levels of ammonia are already above the <br />Numeric Standazd and the concentrations in Outfa11001 dischazge. Thus there is no effect <br />on North Thompson Creek with regazds to ammonia from Outfa11001 discharges. <br />23 <br />