[Code of Federal Regulations]
[Title 40, Volume 30]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR761.265]

[Page 743]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 761_POLYCHLORINATED BIPHENYLS (PCBs) MANUFACTURING, PROCESSING, 
 
  Subpart N_Cleanup Site Characterization Sampling for PCB Remediation 
 
Sec.  761.265  Sampling bulk PCB remediation waste and porous surfaces.

    (a) Use a grid interval of 3 meters and the procedures in Sec. Sec.  
761.283 and 761.286 to sample bulk PCB remediation waste that is not in 
a container and porous surfaces.
    (b) Use the following procedures to sample bulk PCB remediation 
waste that is in a single container.
    (1) Use a core sampler to collect a minimum of one core sample for 
the entire depth of the waste at the center of the container. Collect a 
minimum of 50 cm\3\ of waste for analysis.
    (2) If more than one core sample is taken, thoroughly mix all 
samples into a composite sample. Take a subsample of a minimum of 50 
cm\3\ from the mixed composite for analysis.
    (c) Use the following procedures to sample bulk PCB remediation 
waste that is in more than one container.
    (1) Segregate the containers by type (for example, a 55-gallon drum 
and a roll-off container are types of containers).
    (2) For fewer than three containers of the same type, sample all 
containers.
    (3) For more than three containers of the same type, list the 
containers and assign each container an unique sequential number. Use a 
random number generator or table to select a minimum of 10 percent of 
the containers from the list, or select three containers, whichever is 
the larger.
    (4) Sample the selected container(s) according to paragraph (b) of 
this section.