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• <br /> <br />• <br />Figure 6. Surface Water Total Dissolved Solids <br />1600 <br />1400 <br />1200 <br />1000 <br />-~ <br />o, 800 <br />E <br />600 <br />400 <br />200 <br />0 <br />Jan-99 <br /> <br />^ <br />^•^ ~ <br />_~~ <br />Jan-95 Jan-96 <br />-~-TR-A -~-TR-B tTR-C -~-TR-D <br />Jan-97 <br />//~*p <br />/ <br />' <br />Y Z <br />r~ <br /> <br />,~ <br />Jan-87 Jan-88 Jan-89 Jan-90 Jan-91 Jan-92 Jan-93 Jan-94 Jan-95 Jan-96 Jan-97 <br />-~-TR-A --~-TR-B tTR-C +TR-D <br />1VVV <br />1900 <br />1200 <br />1000 <br />-a <br />E 800 <br />600 <br />400 <br />200 <br />0 <br />11 <br />