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<br />POND 88 TDS <br />~ mg/1 <br />250 <br />zoo <br />150 <br />100 <br />50 <br />0 <br />^ M1N. <br />^ MEAN <br />^ MAX. <br /> <br />.~.~ Y' .wS '+I.~~h' A ~ 2.~M'y,. .... k~ f..... Y ...i. .~ ~~%.i _...Z •~_ i. .:~Yi 1W{~ ..... .. ~.~R '...... .. wu <br />1987 1986 1985 1984 1983 <br />