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The rainfall on each of these days was received in the time period <br />~"'~ between approximately 1200 to 1400 o'clock. <br />. Four baseline water quality samples were obtained for this <br />study as indicated on Map No. 18. The upstream sample of Raton <br />Creek indicates the quality prior to entrance of Starkville Gulch <br />water. The latter, Starkville Gulch spring was sampled approxi- <br />mately 40 feet downstream from its emergance. A downstream Raton <br />Creek sample was obtained A00 feet downstream of the Raton Creek- <br />Starkville Gulch confluence. At that point the two waters should <br />have been thoroughly mixed. <br />Should significant changes occur in the water quality of <br />Starkville Gulch as a result ~f mining, the downstream Raton Creek <br />station could be sampled to determine the actual effect after <br />dilution. <br />It should be noted that coal mining has been occurred in this <br />area since about 1889. It is very likely that present water quality <br />conditions already reflect any effect that may result from mining. <br />An "upstream" sample from Starkville Gulch was also obtained <br />on May 12, 1982. Precipitation at mid-day caused surface runoff <br />to flow into the normally dry Starkville Gulch. A sample of <br />this water was obtained after the rainfall had ceased. This sample <br />represents the quality of water which will flow past the Raton Creek Mine <br />during periods of runoff. A comparisson of the analytical results <br />in Table 1 shows that the following difference in water quality <br />exists between the surface runoff and spring water. <br />:< <br />FISHER, HARDEN i fISHER <br />166 <br />Revised 5/93 <br />