[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: 40CFR125.99]

[Page 364]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 125_CRITERIA AND STANDARDS FOR THE NATIONAL POLLUTANT DISCHARGE
ELIMINATION SYSTEM--Table of Contents
 
Subpart J_Requirements Applicable to Cooling Water Intake Structures for 
      Phase II Existing Facilities Under Section 316(b) of the Act
 
Sec.  125.99  What are approved design and construction technologies?

    (a) The following technologies constitute approved design and 
construction technologies for purposes of Sec.  125.94(a)(4):
    (1) Submerged cylindrical wedge-wire screen technology, if you meet 
the following conditions:
    (i) Your cooling water intake structure is located in a freshwater 
river or stream;
    (ii) Your cooling water intake structure is situated such that 
sufficient ambient counter currents exist to promote cleaning of the 
screen face;
    (iii)Your maximum through-screen design intake velocity is 0.5 ft/s 
or less;
    (iv) The slot size is appropriate for the size of eggs, larvae, and 
juveniles of all fish and shellfish to be protected at the site; and
    (v) Your entire main condenser cooling water flow is directed 
through the technology. Small flows totaling less than 2 MGD for 
auxiliary plant cooling uses are excluded from this provision.
    (2) A technology that has been approved in accordance with the 
process described in paragraph (b) of this section.
    (b) You or any other interested person may submit a request to the 
Director that a technology be approved in accordance with the compliance 
alternative in Sec.  125.94(a)(4) after providing the public with notice 
and an opportunity to comment on the request for approval of the 
technology. If the Director approves the technology, it may be used by 
all facilities with similar site conditions under the Director's 
jurisdiction. Requests for approval of a technology must be submitted to 
the Director and include the following information:
    (1) A detailed description of the technology;
    (2) A list of design criteria for the technology and site 
characteristics and conditions that each facility must have in order to 
ensure that the technology can consistently meet the appropriate 
impingement mortality and entrainment performance standards in Sec.  
125.94(b); and
    (3) Information and data sufficient to demonstrate that facilities 
under the jurisdiction of the Director can meet the applicable 
impingement mortality and entrainment performance standards in Sec.  
125.94(b) if the applicable design criteria and site characteristics and 
conditions are present at the facility.

Subpart K [Reserved]

Subpart L--Criteria and Standards for Imposing Conditions for the Disposal 
of Sewage Sludge Under Section 405 of the Act [Reserved]