Laboratories
are permitted to modify or omit any steps or procedure
Message
from the EPA: The following is an exact, verbatum
statement from the Introduction section of EPA method 1602: Male-specific
(F+) and Somatic Coliphage in Water by Single
Agar Layer (SAL) Procedure.
"Coliphage presence in ground water
is an indication of fecal contamination. Method 1602 is a performance-based
method for enumerating male-specific (F+) and somatic coliphage in
ground water and other waters. Laboratories are permitted to modify
or omit any steps or procedure, with the exception of the coliphage
stock enumeration procedure (Section 11.3), provided that all performance
requirements set forth in the validated method are met."