[Code of Federal Regulations]

[Title 40, Volume 21]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR125.99]



[Page 363]

 

                   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]