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Table 7-62 (Continued) <br />• Comparison of Mean Monthly Upstream (Site 26) and <br /> Downstream (Site 27) Water Quality on Fish Creek <br /> From July 1979 through march 1986, <br /> Routt County, Colorado <br /> (Summarized From: Twenty Mile Coal Company Permit <br /> Applicati on and Annual Reports, M LRD Library) <br /> Mean TDS(mg/1) <br /> % Change (±) in TDS From <br /> Month Year Site 26 Site 27 Site 26 to Site 27 <br /> May 1979 <br /> 1980 300 352 +17 <br /> 1981 422 566 +34 <br /> 1982 230 290 +26 <br /> 1983 257 525 +104 <br /> 1984 360 285 -21 <br /> 1985 297 353 +19 <br /> 1986 <br /> June 1979 <br /> 1980 411 428 +4 <br /> 1981 464 364 -22 <br /> 1982 302 287 -5 <br />• 1983 282 352 +25 <br /> 1984 478 506 +6 <br /> 1985 537 487 -9 <br /> 1986 <br /> July 1979 460 420 -9 <br /> 1980 533 558 +5 <br /> 1981 364 <br /> 1982 390 350 -10 <br /> 1983 476 462 -3 <br /> 1984 675 625 -7 <br /> 1985 666 742 +11 <br /> 1986 <br /> August 1979 <br /> 1980 802 602 -25 <br /> 1981 444 412 -7 <br /> 1982 480 440 -8 <br /> 1983 460 484 +5 <br /> 1984 550 530 -4 <br /> 1985 608 618 +2 <br /> 1986 <br /> <br />Revised 10/01/86 <br />7-220 <br />