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mass average conductivity and flow relationships between SP - A • and B and SP - C than found in the 1983 report. The lower flow in ~ SP - A may indicate a change in irrigation pattern o.r may reflect the lower flow of Ward Creek. In either case the higher conductivity is typical of lower flow. The flow from SP ~ is primarily the mine discharge. The flow and conductivity both creased during the year reflecti~§'the amount of discharge from UG - 5. This; year the flow from SP ~ nd UG - 6 were closer than last year. Seepage and evaporat on ay account for part of the difference. The 9" Parshall flume removed from Williams Creek was installed for ;;P - C, result- ing in better flow measurements. The lower conductivity in SP - D corresponded to the lower conductivity of Ward Creek. The calculated mass average affect the T.D.S. of SP - A and SP - B on SP - D was 6.7 and 21.8 mg/L increases respectively. Sampling on the springs was reduced to flow measurements during the irrigation season. Flow in Springs 1, 3 and 4 are taken by timing a five gallon bucket. Better collection methods were imple- • mented during the year for more accurate flow measurements. Monitor- ing the flow on Spring #2 is not even attempted due the high dilu- tion from irrigation runoff and Williams Creek overflow. The Nelson Ditch has been monitored monthly since 6/84. This ditch contains runoff water from Carbon Ditch SP - D and SP - C irrigation as well as several springs south of the mine site. This ditch is being monitored on a trial basis to determine whether SP - B discharges have any detectable effect at that point. Ground Water Table G-84 represents average water levels and field quality for the ground water piezometers and wells. The water in the coal seam wells was higher in 1984 than 1983. The greater gains were seen in D - 3 and E - 3. The recent succes- • sion of wet years may have gradually increased the head on these