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<br />c..:> <br /> <br />r.::::> <br /> <br />l"",) <br />'.A <br />C<,) <br />-.I <br /> <br />Table 8: Assessed lakes not fully supporting designated uses, San Juan basin, New Mexico <br />Uses Not Fully <br />Supported <br />or Uses <br />Threatened. . <br />(see Table 4a) <br /> <br />Water Body <br />(Basin, segment) <br />Evaluated or Monitored <br />(ElM) <br /> <br />Trophic <br />Status. <br /> <br />T oxics at <br />Acute <br /> <br />T oxics at <br />Chronic <br />Levels" .. .. <br /> <br />Probable Sources of <br />Nonsupport <br />(see Table 4b) <br /> <br />Total Size <br />Affected Status of <br />(Acres) Support" 1I " 1I <br /> <br />Probable Cause of Nonsupport <br /> <br />levels" .. .. <br /> <br />Navajo Reservoir <br />(San Juan River, 2.406) <br />M <br /> <br />OM <br /> <br />CWF, WWF <br /> <br />Metals. fish tissue mercury <br /> <br />Hg (fish) <br /> <br />Unknown (90001 <br /> <br />15,000 <br /> <br />PS <br /> <br />.. Trophic status based on Carlson trophic state index <br />~ ... Conclusions concerning attainment of fishery uses are largely based on water quality analysis; where available, biological data are used to verify these results. <br />" ".. All toxins for which the EPA has prepared a 304(a) guidance document were reviewed as required by the EPA. <br />. . .. Use support summary for assessed New Mexico lakes <br />FST = Fully supporting but threatened <br />PS = Partially supporting <br />NS = Not supporting <br />U = Unknown/lake of current data precludes adequate evaluation <br /> <br />Taken from New Mexico Water Quality Control Commission 1992 <br /> <br />1''^' > <br /> <br />