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<br />POND 82 TDS <br /> <br /> <br />mg/1 <br />500 <br />450 <br />400 <br />350 <br />300 <br />250 <br />200 <br />150 <br />100 <br />50 <br />0 <br />~ MIN. <br />~ MEAN <br />® MAX. <br /> <br />19$7 1986 1985 19$4 1983 <br />