first two of these reactor operations (Millstone Point No. 

 1 and 2, and Maine Yankee) do we have relevant data for the 

 radionuclide discharges, as set out above in Tables 1, 2, and 3. 



Millstone Point, Conn. Reactors No. 1 and 2 : 



In late October, 1977, we obtained a small series of water 

 samples representing the reactor coolant outflow stream 

 (identified by its temperature anomaly), the source term in 

 Niantic Bay for the coolant intake (Station 2), and two 

 Long Island Sound points that might have been expected to 

 receive reactor outflow water after some circulation and 

 dilution. In two parts of the outflow plume, the inner 

 (hottest) plume, and the outer (mixed) plume envelope, 

 large volumes of water were passed through 1 ym filter car- 

 tridges and the particles so collected were analyzed sepa- 

 rately. Data from these samples are set out in Table 5 and 

 can be compared to the October 1977 data shown for discharge 

 in Tables 1 and 2. 



Although the October 1977 discharges were characterized by 

 ratios as follows: 



there 

 pari ng 

 outfl 

 deplet 

 235Pu 



A larg 

 ment o 



terest 

 partic 

 ported 

 but we 

 radio- 

 true s 

 stream 

 rapid 

 (Hethe 

 most e 

 patter 



is littl 

 water s 

 w has be 

 ed in 90 

 or 239,2 



er volum 

 f 134CS 



that th 

 1 es col 1 



for oth 

 had exp 



Fe, aris 

 1 u t i n . 

 was par 

 parti cl e 

 rington , 

 vident , 

 n must b 



Fe 



134c 



238P 



244c 



e evi 



ampl e 



en en 



Sr , s 



40pu, 



e sam 



at th 



e 55f 



ected 



er CO 

 ected 



ing f 

 Onl 



ticl e 

 upta 

 1976 



howev 



e suf 



to ■" 

 s to 

 u to 

 m to 

 dence 



5A t 

 riche 

 hows 



and 

 pi e w 

 e con 

 e was 



by t 



rrosi 

 that 



rom " 

 y abo 

 -asso 

 ke re 

 ; Nel 

 er , i 

 f i c i e 



37cs 



137cs 



239,2 



24lAm 

 of t 

 wat 

 d by 

 no ev 

 has b 

 oul d 

 centr 

 esse 

 he 1 



on pr 

 a su 

 pi ant 

 ut 33 

 ciate 

 porte 

 son a 

 s tha 

 ntly 



40Pu 



his i 

 er sa 

 48% i 

 i d e n c 

 een e 

 have 

 a t i n 

 n t i a 1 

 ym f i 



oduct 

 bstan 

 oper 

 % of 

 d; th 

 d for 

 nd Lo 



t the 

 spora 



about 



0. 



1. 



1. 

 n the ou 

 mpl e 2 , 

 n 137CS, 

 e of enr 

 nriched 

 been nee 

 i n d i c a t 

 ly 100% 

 1 ters ; t 

 s in rea 

 tial fra 



ations ", 

 the Pu i 

 is contr 



W i n d s c a 

 vett, 19 



pul sing 

 die so t 



1 



39 



7 



2, 



tflow d 



we see 



'^^v':j s 

 ichment 

 by 2 90% 

 ded for 

 ed. It 

 a s s c i a 

 his has 

 ctor ef 

 c t i n 

 would s 

 n the 

 asts wi 

 le-effl 

 79). W 



of the 

 hat wat 



ata. Corn- 

 that the 



1 ightly 

 by 134CS, 

 in 55Fe. 

 measure- 

 i s of i n - 



ted with 

 been re- 



fl uents 



f the 



till be in 



utf 1 ow 



th the 



uent Pu 



hat is 

 di scharge 



er sampling 



17 



