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3.2 S:".^',R° 0° P~ESJLTS <br />• The following briefly surrarizes sanple results discussed in more detail in <br />Section 3.3 tollowing. Further discussion and interpretation of data is given in <br />Section 4. <br />Basic ldeter CUzlit•: Parac=_ters - <br />Tecneratnre, 07, pu, zni Co^_ucti•.•it~~ <br />F7eek1}• measures were taken for all i;orth Fork staticns. Genera'-ly, values for <br />all basic parameters fell r,2thin expected ranges for the Pray to October, 197B, <br />period an:: do not indicate strong concern for the Orchard Va'1cy cine operations. <br />There ti:ere, however, score diSferences rr_thin the 1:orth Fork study area. <br />Recorded ri~•er terpenatures ranged fro.~~ approximately 5°C to 1B°C, and rose <br />sharply in early Jul;;. pS ranged from 7.0 to 6.3, and was generally ca the alka- <br />line side. DO leve l= here high, ranging from 7.4 to 11.9 mg~l; and ecnductivity <br />• ranged from 79-1032 uhos. 1'nere was a general increase in cenducti;•ity from <br />upper to loner stations. <br />Total Su=Warded Soli:'s (TSS) <br />F7eekly measnres were taken for all i+o:-;,h Fork stations. TSS values were within. <br />the range of previous values but generally lower, reflecting less snoHV~elt runoff, <br />than during earlier periods. P:orth Fork values ranged from 1 - 357 mg~l and <br />Stevens (~r].ch values from 1 -2180 mg~1. Installation of sedieentation dams are <br />expected to control ar~}~ increased sedinent load to the }:orth Fork from the mine <br />area except during sto:rs greater than 10 year-21, hour events. <br />• <br />3-4 <br />