Yanke 



unusu 



Furth 



high 



thoug 



in th 



i nven 



the s 

 and B 

 h i g h - 

 that 

 col 1 e 

 to th 

 wel 1 

 true 

 contr 

 measu 

 The d 

 stron 



of Pu 

 corre 

 Point 

 the s 

 ties. 



e rea 

 ally 

 ermor 

 as th 

 has 

 e dis 

 torie 

 edime 

 owen 

 137CS 

 the s 

 cted 

 e con 

 w i t h i 

 al so 

 ast t 

 red i 



ata 

 g cor 



i n i 

 1 a t i 



No. 

 ampl e 



ctor . T 

 high in 

 e , we ha 

 is in t h 

 d i s c u s s e 

 charges 

 s of Pu, 



nts of T 

 (1979) s 

 d i s c h a r 

 ediments 

 represen 

 elusion 

 n the ra 

 of the r 



the ac 



n 14 sam 



f Table 

 rel ation 

 n d i V i d u a 

 n in t h i 



1 or 2, 

 -pool ing 



he ratio 

 our experi 

 ve not mea 

 e discharg 

 d above ev 

 from Mills 



and of th 

 able 8 wit 

 uggests th 

 ges to Bai 



( sampl ed 

 t about th 

 that the P 



134 



nge ex 

 a t i 2 



)ect 

 !8Pu 



ti vi ty-wei 

 pies of Ma 

 3, of cour 



between t 

 1 discharg 

 s respect 

 but this a 



that was 



Cs to 

 ence of 

 sured (s 

 e sample 

 en hi ghe 

 tone Poi 

 e ratios 



h those 

 ere was 

 1 ey ' s Co 

 by "scoo 

 e top 6 

 u concen 



ed from 

 to 239. 



ghted ra 

 me Yank 

 se, conf 

 he amoun 



es; perh 

 at Maine 

 ppearanc 

 practice 



'"cs 



e n V i r 



ee Ta 



s fro 



r rat 



nt . 

 258p 



repor 

 1 ittl 

 ve. 

 ping" 

 cm of 

 trati 



fallo 

 240pu 



tio a 

 ee di 

 i rm t 

 ts of 

 aps t 

 Yank 

 e may 

 d at 



, 55 to 

 onmenta 

 ble 3) 

 m Maine 

 i s h a V 

 C m p a r i 

 u to 23 



ted by 

 e or no 

 The ass 



at 1 ow 



the CO 

 ons rep 

 ut al on 



which 

 bout 0. 

 scharge 

 hat the 



r a d i c 

 here is 

 ee than 



bean 

 the lat 



58% 

 1 sa 

 rati 



Yan 



e be 



son 

 9,24 



L i V i 



Pu 

 umpt 



tid 

 1 umn 

 orte 

 e; t 

 i s i 

 33 t 



sol 

 re i 

 esi u 



eve 



at 

 arti 

 ter 



, is 



mpl es . 

 OS as 

 kee, al - 

 en seen 

 of the 

 OPu, in 

 ngston 

 i n the 

 ion 

 e) 



1 eads 

 d are 

 his is 

 n marked 

 hat we 

 u t i n s . 

 s no 

 m and 



n less 

 Mil 1 stone 

 fact of 

 f aci 1 i - 



We take the change in sediment radionuclide concentrations 

 at station 2 from June to December 1975 to indicate that 

 Bailey's Cove is frequently flushed, transferring labelled 

 sediments to depositories elsewhere in the area. This is 

 confirmed by the analyses of 1975 sediments from stations 

 1 and 15 which show evidence of reactor-originated contami- 

 nation but with significantly lower ratios 134cs to 137cs. 



The two s 

 are set o 

 At locati 

 depth cur 

 expected 

 constant 

 to 11 cm, 

 radiocesi 

 tent. Th 

 239,240Pu 

 would exp 

 b u t i n w i 

 by Living 



edimen 

 ut in 

 on 2, 

 ve com 

 effect 

 in the 



sugge 

 um rel 

 e flue 



or 55 



ect to 

 thin t 

 ston a 



t cor 



Table 



al tho 



es cl 



of m 



uppe 



sts t 



eases 



t u a t i 



Fe to 



resu 



he se 



nd Bo 



es, 



10, 

 ugh 

 ose 

 i X i n 

 r 9 

 hi s 

 . di 



It f 

 d ime 

 wen 



col 1 e 

 conf 

 the r 

 to ex 

 g dow 

 cm an 

 sedim 

 f feri 

 with 

 Cs, d 

 rom r 

 nt , a 



(1979 



cted in 

 i rm and 

 a d i c e s 

 press in 

 nward , 

 d d i m i n 

 ent col 

 ng grea 

 depth , 

 not s 

 e s 1 u b i 

 s d i s c u 

 ). Mor 



1977 

 exte 

 i um c 

 g log 

 the r 

 i s h i n 

 umn h 

 tly i 

 of t 

 how t 

 1 i z a t 

 ssed 



e 1 ik 



, for wh 

 n d this 

 oncentra 

 ari thmi c 

 atio 134 

 g by 90% 

 as seen 

 n age or 

 he ratio 

 he patte 

 ion and 

 for Pu:l 



ely, we 



i c h data 

 conclusion, 

 tion- vs- 

 ally the 

 Cs to 137cs, 



from 9 cm 

 only two 



134CS con- 

 s of ei ther 

 rns that we 

 r e d i s t r i - 

 37cs ratios 

 bel ieve , 



26 



