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bearings from the point of origin. On each traverse there is 
an A station within Area 1 and B and C stations in Area 2, the 
locations of which are within specified distances from the point 
of origin of the traverse. In addition, there are a series of 
shoreline stations located at not greater than 10,000 feet inter- 
vals for a distance of 14 miles north and 9 miles south of the 
Hyperion plant. The bacteriological standards laid down specify 
that as determined by the B and C sampling stations "The coli- 
form concentration, aS measured by the geometric mean at the two 
sampling stations along each radial traverse, shall not exceed 
100 per ml in any three consecutive samples or in more than 20% 
of any 20 consecutive samples.” As determined at the shoreline 
sampling stations, “The coliform concentration at each sampling 
station shall not exceed 10 per ml in any three consecutive 
samples or in more than 20% of any 20 consecutive samples.” 
From the information available on currents in Santa Monica 
Bay, it can be assumed that the most rapid currents observed 
along any traverse will be no greater than the maximum rate 
observed along any other. This does not imply that the effluent 
will spread out equally in all directions, since the data have 
shown that a well-developed current system exists in the bay 
(see Final Current Report), but it does imply that the maximum 
danger of noncompliance with the standards will be along the 
traverses of minimum length and consequentiy of minimum travel 
time of the effluent from the outfall to the established 
stations. On this basis, traverses 2 and 3, which run most 
directly towards the beach are the most critical ones. Along 
these traverses, the B stations can be located between 13,000 
