[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: 40CFR130.21]

[Page 358]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 130--WATER QUALITY PLANNING AND MANAGEMENT--Table of Contents
 
   Subpart C--Identifying Impaired Waterbodies And Establishing Total 
                       Maximum Daily Loads (TMDLs)
 
Sec. 130.21  What is the purpose of this subpart?

    (a) This subpart explains how to identify and list impaired 
waterbodies and establish TMDLs in accordance with section 303(d) of the 
Clean Water Act. The subpart also explains how EPA reviews and approves 
or disapproves your lists and TMDLs. Specifically, the subpart explains 
how to:
    (1) Assemble all existing and readily available water quality-
related data and information;
    (2) Document your methodology for considering and evaluating all 
existing and readily available water quality-related data and 
information to make decisions on your list and provide the methodology 
to EPA and the public;
    (3) Identify impaired waterbodies to be included on the list and 
decide which of those waterbodies will have TMDLs established for them;
    (4) Identify the pollutant or pollutants causing the impairment for 
all waterbodies on Part 1 of your list;
    (5) Develop a prioritized schedule for establishing TMDLs for 
waterbodies on Part 1 of your list;
    (6) Establish TMDLs for waterbodies on Part 1 of your list and 
submit them to EPA for review;
    (7) Provide public notice and an opportunity for public comment on 
your methodology, your list, and TMDLs prior to final submission to EPA.
    (b) It also explains how EPA must:
    (1) Review and approve or disapprove your list of impaired 
waterbodies;
    (2) Develop a list where you fail to do so or if EPA disapproves 
your list;
    (3) Review and approve or disapprove your TMDLs;
    (4) Establish TMDLs if you have not made substantial progress in 
establishing TMDLs in accordance with your approved schedule, or if EPA 
disapproves your TMDLs .

   Listing Impaired Waterbodies, and Documenting Your Methodology for 
                        Making Listing Decisions