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<br />ROCKY :FLATS SOIL PLUTONIUM'J+240 SURVEYS FROM 1970 TO 1991 <br />' Graph 3a is the same graph as 3 but the y-axis is adjusted to reveal the subtleties in the data for <br />the low-I<;vel sectors. <br /> <br /> <br />1 <br />i <br />1 <br />1 <br />1 <br /> <br /> <br /> CDH SOIL PLUTONIUM SURVEY <br /> PLUTONIUM 239+240, 1975-1991 <br />t <br /> <br />o <br />s <br />. <br />~•6 I Wvnun I Miwun GYn'ri,::J )S)"PERCEMIL ~ xSTI PERCEMILE <br />Q <br />o <br />~ x iur.n: n ® Lw.n ~ STIiRWi~OYpCYORIM • f+u~.wewwn <br />~ <br />. <br />X0.6 <br /> ~~ <br /> <br />a 0.5 <br />° . <br />p~. ~~. <br />, <br />osxm o.,xao <br />~ ~ <br /> <br /> u,: <br />~ 0 <br />4 ,: <br />. <br />z <br />o ~. <br /> n <br />d .fi <br />': a.x)ao <br /> <br /> ` <br /> ~z. o.ieao oism •e ~rx <br />, oisao <br />0.1 <br /> <br /> <br />y <br />C' <br />,.. ) <br /> ~~ ~U100 <br />( <br />) <br /> 1 2 3 4 5 6 7 8 9 10 1t 12 73 <br /> SECTORS <br />Graph 3a <br />The levels for sectors 3 through 13 are all close as displayed by the tightness of the <br />"boxes". Except for Sector 10 which has one high measured value of 0.52 in ] 981. This <br />value for Sector 10 is a magnitude greater than the median and geometric mean for <br />Sector 10. This value is being treated as an outlier. However for this portion of the <br />analysis the value is not being excluded. This is the only outlier identified in the report. <br />There seems to be little or no difference between Sectors 5 and 8. Values For sectors 3, <br />4, 6 seem a little elevated . Sector 1,2 and 7 still differ significantly from the rest of the <br />sectors. <br />Charts 1 and 2 show the absolute difference and percent difference between the 1970-1991 and <br />the 1975-1991 data sets. <br />1 <br />14 <br /> <br />i <br />