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• April 13, 1991 <br />Page 14 <br />angle of draw has reached the pond if it still holds water. <br />Spring monitoring should be discontinued if the spring is <br />still flowing at approximately its premining rate at one year <br />after the angle of draw has reached the spring. <br />4 All springs which do not flow continuously and have never <br />flowed more than 0.02 cfs should be dropped from the program. <br />5 All ponds that have already been within the angle-of-draw for <br />more than one year and still hold water and do not discharge <br />continuously should be dropped from the program. <br />6 Since no problems related to the ground water levels in the <br />bench monitoring wells (B-1 through B-8) at the Orchard Valley <br />Mine Portal have been observed and because most of the bench <br />• wells are dry, only well B-7 should continue to be monitored. <br />7 Monitoring of all springs, ponds and surface water stations <br />should only be conducted during the Spring, Summer and Fall. <br />Surface water stations should be sampled monthly for a minimum <br />of five samples per year. Ponds and springs should be <br />monitored for level or flow monthly with annual full suite <br />analyses (in the fall) and monthly field parameters measured <br />at only a few selected stations. <br />8 Monitoring of wells should continue much as before. Where <br />wells are accessible bedrock wells should be monitored <br />quarterly for water levels and colluvial wells and well B-7 <br />should be monitored monthly. The colluvial wells and Well B-7 <br />• should monitored quarterly for field parameters and semi- <br />annually for full suite analyses. <br />