ML19221A770
| ML19221A770 | |
| Person / Time | |
|---|---|
| Issue date: | 02/28/1979 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| References | |
| NUREG-0555, NUREG-0555-03.7, NUREG-555, NUREG-555-3.7, SRP-03.07, SRP-3.07, NUDOCS 7907090086 | |
| Download: ML19221A770 (5) | |
Text
Section 3.7 February 1979 ENVIRONMENTAL STANDARD REVIEW PLAN FOR rc SECTION 3.7 POWER TRANSMISSION SYSTEMS REVIEW INPUTS Environmental Report Sections 3.9 Transmission Facilities Environmental Reviews 2.2.2 Land Use: Transmission Corriuors and Of f site Areas Standards and Guides Applicable local, State, and Federal standards and guidelines Other The site visit Responses to requests f or additional information REVIEW OUTPUTS Environmental Statement Sections 3.7 Power Transmission Systems Other Environmental Reviews 4.1 Land-Use Impacts (Construction) 4.3.1.2 Terrestrial Ecosystems: Transmission Corridors and Of f site Areas 4.3.2.2 Aquatic Ecosystems: Transmission Corridors and Of f site Areas 5.1 Land-Use Impacts (Operation) 5.6 Transmission System Impacts (Operation) 107 3i1 3.7-1 7 9070900 %
February 1979 I.
PURPOSE AND SCOPE The purpose of this environmental standard rev.ew pla, (ESRP) is to direct the staf f's description of the design characteristics of the proposed transmission system.
The scope of the review directed by this plan will include the transmission system from the plant switchyard to its connections with existing systems, including lines, corridors,* towers, access roads, substations, and communication stations.
This review will provide input to other reviews dealing with evaluation of construction and operational impacts associated with land use and ecosystems and to other ES sections that deal with consideration of alternatives.
II.
REQUIRED DATA AND INFORMATICN The kinds of data and information required will be affected by site-and station-specific factors, and the degree of detail will be modified according to the anticipated magnitude of the potential impacts.
The following data or information will usually be required:
A.
Basic electrical design parameters, including transmission design voltage or voltages, line capacity, conductor type and configura ion, spacing between phases, minimum conductor clearances to ground, maximum predicted electric field strength (s) at I meter above ground, the predicted electric field strength (s) at the edge of the right-of way in kilovolts per meter (kV/m), and the design bases for these values (from the ER).
8.
Predicted noise levels resulting from transmission-system operation (f rom the ER).
A For the purposes of these environmental reviews, " corridors" are defined as transmission line routes of variable width, deper ing on the nature of the application.
When an applicant has proposed pre.isely described and located rights-of-way, " corridor" and "right of-way" are synonymous.
When an applicant's rights-of way are not precisely defined, corridors are more general routes of sufficient width to contain the eventual rights-of-way.
107 312 3.7-2
February 1979 C
Basic structural design parameters, including illustrations and descriptions of towers, conductors, and other structures, with dimensions, materials, color, and finish (f rom the ER).
D.
Topographic maps (15-minute scale as a rule) or aerial photographs showing the proposed corridor or corridors and all existing major high-voltage corridors in the region.
Data will be required for all potential corridors identified by the applicant (to be requested from the appiicant).
E.
Lengths, widths, and area of rights-of-way, including modification and/or use of existing rights-of-way and other facilities for the proposed project (from the E?).
F.
General methoas of construction, e.g.,
tower foundations, stringing, location of access roads, span length, and clearing of rights-of way (from the ER).
G.
When available, tower and substation locations (f rom the ER).
III.
ANALYSIS PROCEDURE The reviewer's analysis of the proposed power transmission system will be closely linked with the impact assessment review described by the ESRPs for ES Sections 4.1, 4.3.1.2, 4.3.2.2, 5.1. 3, and 5.6 in order to establish the general transmission system characteristics that are most likely to af fect these reviews.
Since this section is primarily for description, the information can usually be obtained from the environmental report or from responses to questions asked of the applicant. When an applicant has identified a specific corridor or corridors as the proposed transmission line route or routes, only those corridors need be considered in this review.
(Alternative corridors will be considered by the reviewer for ES Section 9.4, Alternative Transmission Systems. )
3.7-3
February 1979 If no specific corridors are identified, the reviewer will consider in this review all potential corridors identified by the applicant.
IV.
EVALUAT10N In evaluating the adequacy of this material, the reviewer will ensure that (1) data on the power transmission system are sufficient to describe the systems and provide qualitative and quantitative information necessary to assess potential impacts to land use, terrestrial and aquatic ecosystems and man; and (2) local, State, and Federal regulations applicable to transmis'sion system design, construction and operation have been considered.
V.
INPUTS TO THE ENVIRONf1 ENTAL STATEMENT The following infcrmation will usually be included in ES Section 3.7:
A.
The route of the proposed transmission system.
B.
Proposed tower types and range of dimensions (including those needed for unusual situations such as long water crc; sing), span lengths, rights-of-way lengths and widths, and areas of rights-of-way.
Tower locctions for sensitive (e.g., historic) areas.
C.
Voltage, line capacity, conductor configuration, minimum conductor-to-ground clearance, maximum predicted electrical field strengths 1 meter above ground and at the edge of the rights-of-way, and predicted noise levels at the edge of the rights-of way.
D.
Location of other f acilities such as substations.
The reviewer will provide inputs or ensure that inpats will be made to the following ES sections:
9 107 "7
3.7-4
February 1979 Sections 4.1, 4.3.1.2, 4.3.2.2, 5.1, 5.6.
The reviewer will ensure that ES Section 3.7 contains descriptive information in suf ficient detail to support the assessments given in the listed sections.
VI.
REFERENCES None t
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