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Figure 58AN. Stream Station WF-2 <br />pH <br />9.0 <br />8.5 <br />8.0 <br />Q <br />7.5 <br />7.0 <br />6.5 ~ <br />Jan-81 Jan-83 Jan-85 Jan-87 Jan-89 Jan-91 Jan-93 <br />Date <br />.: <br />., <br />~ ~ ~ ~~ ~ i ^ <br />S ^' '~ ~~ <br />~ ~ ~' <br />~ ~ ~ ~ <br />~ ~ ~ <br />~ ~ ~ i <br />i ~ ^ j^ <br />' i I <br /> <br /> <br />a <br />F <br />m_ <br />x <br />x <br />w <br />• ~ • <br />