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-2- <br />• primarily from mine discharge, and varies with the pumping schedule <br />from the mine. The average and total flow were more accurately <br />calculated from mine discharge. The pH and conductivity were in <br />direct proportion to the mine discharge. Flow from SP-C was directly <br />related to SP-A and SP-B. Flows and mass balance conductivities from <br />these three points indicate an inadequate sampling schedule. The <br />mass average T.D.S. effect of the pond discharge on Carbon Ditch is <br />to increase it from 90 to 242 mg/1. <br />Four springs were monitored monthly for field information. <br />Three of these springs apparently discharge water from the alluvial <br />material around Williams Creek and Ward Creek. Spring #1 flows out <br />of a burned zone in the coal-bearing formation. Recharge for this <br />spring is likely to be along the contact between the formation and <br />the alluvial material. This spring has been in existence for some <br />time, as evidenced by the build-up of mineralization below the spring. <br />• It is impossible to measure the flow of Spring ~2 because of the irri- <br />gation water which runs off into the draw where the spring appears. <br />This draw was dug in the early 1900's to dewater the old Black Diamond <br />Mine in the D seam. The high volume of water in this mine was associated ~ <br />with mining close to the subcrop. Spring li3 is a wet alluvial hillside. <br />Spring #4 appears to flow in direct response to the irrigation of the <br />field directly north of the mine. Irrigation water flows down this <br />draw, in addition to the springs, for portions of the field. The pH <br />in Springs ~1-3 is typical of alluvial ground water. The pH of Spring <br />#4 is more typical of the surface water, like the creeks. All four <br />springs have a conductivity typical of the alluvial ground water. <br /> <br />