73 



TABLE 4— MEASUREMENTS MADE NEAR SAN ONOFRE NUCLEAR POWER STATION SUGGESTING A LOCAL SOURCE 

 OF ARTIFICIAL RADIOACTIVITIES' (USING ORGANISMS COLLECTED AT SAN ONOFRE PEBBLE REEF) 



Sample and date collected 



See hare (Apiysia californica) 



Dec. 12,1970 



Mar. 10, 1971 



June 22, 19713.. 



Oct. 4, 1971 



Jan. 7, 1972 



Dec. 18,1972 



Agar Agar (Gelidium sp.): 



Dec. 12, 1970 



Mar. 10, 19713 



Nov. 2, 1971. 



Surf Grass (Phyllospadix sp.); 



Mar. 10, 19713 



Nov. 2, 1971 



Jan. 17,1972 



Dec. 18, 1972 



1 Other nuclides studied include 22«Ra, 232Th, J'oPo, and m' Pu. Plutonium ranged 0.44 to 1.65 pCi/wet Kg in seaweeds 

 but these levels might be attributed to fallout. 



2 Averages of measurements whose counting errors are 10 percent or better. 



3 <1 pCi/wet Kg of ^Co and uoD/\g are present in sea hare, agar agar, and surf grass collected at La Jolla on these 

 dates, "Co concentrations are 2, 5, and 9 pCi/wet Kg respectively. 



Senator Hollixgs. The committee will be recessed until 10 o'clock 

 tomorrow morning. 



["VATiereupon, at 12 :40 p.m. the committee recessed, to reconvene at 

 10 a.m., Wednesday, June 13, 1973.] 



