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<br /> 1 <br /> 2 <br /> 3 <br /> 4 <br /> 5 <br /> 6 <br /> 7 <br /> 8 <br /> 9 <br /> 10 <br /> 11 <br /> 12 <br /> 13 <br /> 14 <br /> 15 <br />- 16 <br />C\I 17 <br />W 18 <br />...J 19 <br />m <br />~ 20 <br />21 <br />22 <br />0 23 <br />Z 24 <br /><( 25 <br />?"" 26 <br />(!) 27 <br />28 <br />iI 29 <br /> 30 <br />a: 31 <br />W 32 <br />m 33 <br />~ 34 <br />::> 35 <br />Z 36 <br />W 37 <br />0 38 <br />Z 39 <br />W 40 <br />a: 41 <br />W 42 <br />U. 43 <br />W 44 <br />a: 45 <br />a.. 46 <br /><( 47 <br />~ 48 <br />49 <br /> 50 <br /> 51 <br /> 52 <br /> 53 <br /> 54 <br /> 55 <br /> 56 <br /> 57 <br /> 58 <br /> 59 <br /> 60 <br /> 61 <br /> 62 <br /> <br />NWIS SITES <br /> <br />.... T._ <br /> <br />RN <br /> <br />IIIIHllff <br /> <br />. <br /> <br />. II 'I <br /> <br />..... '.1 <br /> <br />II . <br /> <br />. .. . <br /> <br />. . . . . .. . II . . .... . . .. . . <br /> <br />Sampling Period <br />· Sampling Date <br /> <br />II I I . . . <br />.. . . . . <br />II I I . . <br />TI . . . ... <br /> --- <br /> -. -. <br /> _TT -. <br /> <br />".V II <br /> <br />- <br /> <br />,..- <br /> <br />_'11_.11' TT _.1... <br /> <br />R <br /> <br />-.... <br /> <br />T T....... T <br /> <br />-. -. <br /> <br />.11 _. <br /> <br />_II __. <br /> <br />_ ...,. ..... ... <br /> <br />. . <br /> <br />...... .-. <br /> <br />.._.. .... .t.. ...... _... <br /> <br />lUll <br /> <br />,.. -. <br /> <br />IlHIKl_..I_" I'_Ill.' _II. II I' II .. I" <br />._........ _II. II.. II I' II . <br /> <br />- . <br /> <br />.. I <br /> <br />.1. <br /> <br />II' . <br /> <br />- . <br /> <br />...- <br /> <br />11111 II. I.' <br /> <br />.,..,. <br /> <br />fM ...... "HfHRIIT <br /> <br />VI <br /> <br />II . . I . ... .. . . <br /> <br />............ <br /> <br />. . . <br /> <br />II.. II II.. f . II.. W, ..1... II <br /> <br />.. , , , ..... . , <br /> <br />II.n <br /> <br />.. . <br /> <br />. .. <br /> <br />... <br /> <br />.. .. <br /> <br />. . '1'1" <br /> <br />8.11..1 . II.. <br /> <br />. ~ ..... <br /> <br />. ,.WT . ..._ . <br /> <br />J .. II.... __. I ... <br /> <br />"'-Ta ._ <br /> <br />..-. <br /> <br />-.. ... <br /> <br />.-. <br /> <br />I'" 1'1 <br /> <br />'fT' .1 <br /> <br />. I'. IT'''' II' . II <br /> <br />T ,. .. . <br /> <br />. .. . .. <br /> <br />TT TT T T . <br /> <br />""111' <br /> <br />, , _.. T. <br /> <br />, _t <br /> <br />.. <br /> <br />. - <br /> <br />....... -- <br /> <br />..... '1 -.--_n I' .._ <br /> <br />.. . . <br /> <br />. . II.. .... .. . <br /> <br />... . <br /> <br />-- - <br /> <br />1'__ 1 lIR "I <br /> <br />.. , . <br /> <br />. . . <br /> <br />,. ... <br /> <br />"VT . <br /> <br />. .1 . <br /> <br />""1.' <br /> <br />...,.......... ..... ............ ..... ...... ....1. ..... ...............1... <br />. fa II. <br /> <br />.. . <br /> <br />. . . . <br /> <br />. II <br />. ..... <br /> <br />.. . <br /> <br />. .. .. . . <br /> - <br /> - <br /> WT R <br />. . . . . <br />. .. . . . . <br />. , . . . . . . . . <br /> <br />. ... <br /> <br />.. . <br /> <br />. . . . <br /> <br />T , , I <br /> <br />. . . I <br /> <br />'a .. tw TTI'.'" ..... T'TTT'''''I'' ~lMl.II.1I III...'...... r.'Tln.....T' .... Tl'V <br />.,- <br /> <br />. .. ..- <br /> <br /> <br />1994 <br /> <br />YEAR <br /> <br />Figure 2. Distribution of sampling dates for National Water Information System (NWIS) and STOrage and RETrieval <br />(STORET) surface-water sites for nutrient data collection. <br /> <br />DATA-SETSUMIlARY 9 <br />