[Code of Federal Regulations]
[Title 40, Volume 18]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR133.104]

[Page 492]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 133--SECONDARY TREATMENT REGULATION--Table of Contents
 
Sec. 133.104  Sampling and test procedures.

    (a) Sampling and test procedures for pollutants listed in this part 
shall be in accordance with guidelines promulgated by the Administrator 
in 40 CFR part 136.
    (b) Chemical oxygen demand (COD) or total organic carbon (TOC) may 
be substituted for BOD5 when a long-term BOD:COD or BOD:TOC 
correlation has been demonstrated.