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<br />z <br />w <br />~ <br />0", <br />OW <br />wI- <br />>:J <br />c5 ffi 0.0 <br />CJ)o.. <br />~CJ) <br />0:;; <br />15~ <br />z(.9 <br />0:J <br />-...J <br />!;(~ <br />"'z <br />1-- <br />Z <br />w <br />U <br />Z <br />o <br />u <br /> <br />2.0 <br /> <br /> <br />A <br /> <br />. <br /> <br />1.5 <br /> <br />. <br /> <br />1,0 <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />0,5 <br /> <br /> <br />o <br /> <br />5 <br /> <br />10 <br /> <br />15 <br /> <br />20 <br /> <br />25 <br /> <br />DISTANCE DOWNSTREAM FROM THE METRO WASTEWATER <br />RECLAMATION DISTRICT EFFLUENT OUTFALLS, IN MILES <br /> <br /> <br />2.0 <br />B <br /> . <br />1.5 <br /> . <br />1.0 . <br /> . <br /> . <br /> . . . . <br />0.5 - . .. . . <br /> . ... <br /> . . . . <br /> . - .. <br /> .. . <br /> <br /> <br />0.0 <br />8/1/92 9/1/92 1011192 11/1/92 1211/92 111193 2/1/93 <br /> <br />DATE <br /> <br />Figure 14. Concentrations of dissolved oxygsn in ground watsr 1 foot below ths <br />sediment/water interface with (A) distance downstream from the Metro Wastewater <br />Reolamation Distrioteffluent oullalls, and (8) time. Solid line in (A) shows median con- <br />oentration of dissolved oxygen for samples 0 to 5, 5to 10, 10 to 15, 15to 20, and greater <br />than 20 miles downstream from the effluent oullalls. <br /> <br />28 Quantity and Quality of Ground-Water OIBCharga to tho South Piotto Rlvar, Oanvar to Fort Lupton, Colorado, <br />Auguat 1992 Through July 1993 <br />