[Code of Federal Regulations]
[Title 40, Volume 21]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR131.20]

[Page 409-410]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 131_WATER QUALITY STANDARDS--Table of Contents
 
 Subpart C_Procedures for Review and Revision of Water Quality Standards
 
Sec.  131.20  State review and revision of water quality standards.


    (a) State review. The State shall from time to time, but at least 
once every three years, hold public hearings for the purpose of 
reviewing applicable water quality standards and, as appropriate, 
modifying and adopting standards. Any water body segment with water 
quality standards that do not include the uses specified in section 
101(a)(2) of the Act shall be re-examined every three years to determine 
if any new information has become available. If such new information 
indicates that the uses specified in section 101(a)(2) of the Act are 
attainable, the State shall revise its standards accordingly. Procedures 
States establish for identifying and reviewing water bodies for review 
should be incorporated into their Continuing Planning Process.
    (b) Public participation. The State shall hold a public hearing for 
the purpose of reviewing water quality standards, in accordance with 
provisions of State law, EPA's water quality management regulation (40 
CFR 130.3(b)(6)) and public participation regulation (40 CFR part 25). 
The proposed water quality standards revision and supporting analyses 
shall be made available to the public prior to the hearing.
    (c) Submittal to EPA. The State shall submit the results of the 
review, any

[[Page 410]]

supporting analysis for the use attainability analysis, the 
methodologies used for site-specific criteria development, any general 
policies applicable to water quality standards and any revisions of the 
standards to the Regional Administrator for review and approval, within 
30 days of the final State action to adopt and certify the revised 
standard, or if no revisions are made as a result of the review, within 
30 days of the completion of the review.