La. Admin. Code tit. 33 § IX-4747

Current through Register Vol. 50, No. 6, June 20, 2024

Section IX-4747 - What are approved design and construction technologies?

A. The following technologies constitute approved design and construction technologies for purposes of LAC 33:IX.4737.A.4:

1. submerged cylindrical wedge-wire screen technology, if you meet the following conditions:

a. your cooling water intake structure is located in a freshwater river or stream;

b. your cooling water intake structure is situated such that sufficient ambient counter currents exist to promote cleaning of the screen face;

c. your maximum through-screen design intake velocity is 0.5 ft/s or less;

d. 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

e. 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 state administrative authority that a technology be approved in accordance with the compliance alternative in LAC 33:IX.4737.A.4 after providing the public with notice and an opportunity to comment on the request for approval of the technology. If the state administrative authority approves the technology, it may be used by all facilities with similar site conditions under the state administrative authority's jurisdiction. Requests for approval of a technology must be submitted to the state administrative authority 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 LAC 33:IX.4737.B; and

3. information and data sufficient to demonstrate that facilities under the jurisdiction of the state administrative authority can meet the applicable impingement mortality and entrainment performance standards in LAC 33:IX.4737.B if the applicable design criteria and site characteristics and conditions are present at the facility.

La. Admin. Code tit. 33, § IX-4747

Promulgated by the Department of Environmental Quality, Office of Environmental Assessment, LR 31:438 (February 2005).

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2001 et seq., and in particular Section 2074(B)(3) and (B)(4)