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<br />9l.l.0 <br /> <br />Table 9. Comparison of environmental and concurrent- and sequential-replicate samples for general chemica! constituents-Continued <br /> <br />[En\'" environmental s;lmple: Rep.. replicate !-'ample: Di(f, I, differen..::e in unils llfcon"t;ruem; Ditr. 2. difference In lD\vesl fOunding iJrn!; mg/L. milligrams per hler; ~g/L. micrograms per iller; <br />shaded cell:. represent differences gTeatt"f than plus llr minus I lowest rounding urnf; lowesf roundzng un;l is equ.aJ 10 Un,' magnitude of the least significant figure; ).lS/cm. microslemen5 per centlmeter <br />al 25 degrees CelslUsJ <br /> <br /> taboralory pH Laboratory specific conductance Residue on evaporation <br /> Station Date Env. Rep. Dill. 1 Env. Rep. Dill. 1 Env. Rep. Dill. 1 <br /> (standard units) Dill. 2 (~Slcm) (~S/cm) (~Slcm) Dill. 2 (mgIL) (mgIL) (mgIL) Diff.2 <br /> Concurrent replicales <br /> Slate Line 091096 8.1 S.I 0 0 1,230 1.230 0 0 852 846 6 6 <br /> Cameo 051396 7.8 7.9 -0.1 -I 334 332 2 2 203 210 -7 -7 <br /> Gunnison at 32 Road 071895 7.8 7.8 (j 0 159 157 2 2 97 94 3 3 <br /> East 1\3095 7.8 7.7 0.\ t 317 316 I \ 180 179 1 <br /> East 051696 7.8 7.8 0 0 152 153 -I -I 92 <br /> Gore 082396 8.0 8.0 0 0 296 293 3 3 167 169 -2 -2 <br /> Baker 081895 7.9 7.2 0.7 7 M 53 II 11 38 38 0 0 <br /> Max.imum difference 0.7 7 II II -7 -7 <br /> Percen! of snmpJe.s with 57 57 i4 14 17 17 <br /> no difference <br /> Pen;ent of samples 86 43 34 <br /> within plus Of minus I <br />0 lowest rounding unil <br />c: Sequential replicates <br />~ <br />,.. DOIsero 032096 7.7 7.9 --0.2 -2 366 355 II II 222 213 9 9 <br />::; <br />< Reed 112295 7.5 7.5 0 0 4.300 4.270 30 3 3.960 3.960 0 0 <br />h <br />0 Baker 022796 7.4 7.-' 0.1 I 81 81 0 0 48 50 -2 -2 <br />z <br />.... Maximum difference --0.2 -2 30 II 9 9 <br />'" <br />0 I I I <br />,.. Number of samples wilh I <br />!/l no difference <br />~ <br />;: Number of samples 2 <br />"'ll <br />,.. within plus or minus 1 <br />Z <br />Gl lowest rounding unit <br />"'ll <br />'" <br />0 <br />Gl <br />'" <br />~ <br />;: <br />;;; <br />