ML19221A801
| ML19221A801 | |
| Person / Time | |
|---|---|
| Issue date: | 02/28/1979 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| References | |
| NUREG-0555, NUREG-0555-05.6.3, NUREG-555, NUREG-555-5.6.3, SRP-05.06.03, SRP-5.06.03, NUDOCS 7907090151 | |
| Download: ML19221A801 (8) | |
Text
5ection 5.6.3 February 1979 ENVIRONMENTAL STAf1DARD REVIEW PLAN FOR ES SECTION 5.6.3 ENVIRONMENTAL IMPACTS OF STATION OPERATION -
TRANSMISSION-SYSTEM IMPACTS: IMPACTS TO MAN REVIEW INP'JTS Environmental Report Sections 3.9 Transmission Facilities
_ Environmental Reviews 3.7 Power-Transmission Systems Standards and Guides American National Standard C2, National Electrical Safety Code (current edition)
Department of Interior and Department of Agriculture, Environmental Criteria for Electric Transmission Systems, U.S. GPO 0-446-290, 1971 Federal Power Commission, Electric Power Trar,smission and the Environment, 1974 U.S. Nuclear Regulatory Commission," Alternative Electrical Transmission Systems and their Environmental Impact," NUREG-0316, August 1977 State standards and guides for operation and maintenance of transmission lines and corridors Other The site visit Responses to requests for additional info' ution Consultation with local, State, and Federal agencies REVIEW OUTPUTS Environmental State ent Sections 5.6.3 Environmental Impacts of Station Operation - Transmission System Impacts: Impacts to Man Other Environmental Reviews 5.10 Measures and Controls to Limit Adverse Impacts During Operation 9.3.4 Alternative Plant and Transmission Systems: Transmission Systems 10.1 Unavoidable Adverse Environmental Impacts 108 267
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7 9070 9ent
February 1979 I.
PURPOSE AND SCOPE The purpose of this environmental standard review plan (ESRP) is to direct the staff's identification and evaluation of impacts to man induced by operation and maintenance of the proposed transmission system. The scope of the review directed by this plan will include (1) operational impacts resulting from basic systems design parameters and proposed operating procedures and (2) maintenance practices affecting visual impacts.
The review will be in sufficient detail to predict and assess potential impacts and to recommend how these impacts will be treated in the licensing process.
Where necessa:y, the reviewer will recommend consideration of alter-native designs, practices, or procedures that would avoid or mitigate the pre-dicted adverse impacts.
II.
REQUIRED DATA AND INFORMATION The kinds of data and information required will be af fected by site-and sti:,i. ion-specific factors, and the degree of detail will be modified according to '.he anticipated magnitude of the potential impact.
The following data or mfori.:' tion will usually be required:
i:..
Bacic electrical design parameters, including transmission voltages, line caperity, conductor type, conductor configuration and spacing, and minimum design conductor clearances over apen fields, main highways, primary and secondary roads, and railroads (from the ER and from the ESRP for Section 3.7).
B.
de ic structural design pa rameters, including illustrations and descrip-tions of towers, conductors, and other structures, with dimensions, materials, color, and finish (from the ESRP f or ES Section 3.7).
C.
Description of maintenance practices used to reduce visual impacts, e.g., retention of vegetation buffer zones along roads (f rom the ER).
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February 1979 9
D.
Maximum predicted electric field gradient (s) and edge of right-of-way field gradients in kV/m (from the ESRP for ES Section 3.7).
E.
Topographic maps (15-min. scale as a rule) or aerial photographs showing the proposed corridor or corridors (from ESRP 2.2.2 or on request from the applicant).
F.
Proposed means to reduce impacts to radio and televisien reception and to other communication systems (from the ER).
G.
Proposed grounding procedures for stationary objects along the rights-of-way (from the ER).
H.
Design parameters for reducing electrostatic shock potentials to moving vehicles such as school buses and tractor trailers (from the EP).
I.
Maximum predicted noise levels at edge of rights-of-way resulting from transmission-system operatica, and the bases for these predicticns (from the ER).
III.
ANALYSIS PROCEDURE The reviewer's analysis of the proposed power transmission system will be closely linked with the environmental review for ES Section 3.7 in order to establish the general transmission characteristics that are most likely to result in environmental impacts. The analysis should be governed by the magnitude of potential impact to man.
The reviewer will coordinate this review with the reviewer fer ES Section 5.6.1 to avoid duplication of effort.
A.
The reviewer must become familiar with the provisions of standards and guides pertinent to the operation and maintenance of transmission lines and corridors, including applicable State standards.
B.
The reviewer will identify those operational and maintenance activities associated with transmission facilities having impacts to man. Potential adverse impacts resulting f t om operation and maintenance activities include electrostatic 10 8 'F o O,
5.6.3-3
February 1979 and electromagnetic field ef fects, corona dischu ges (including resultant noise),
and potential visual impacts not specified in tce ESRPs for ES Sections 4.1.2 and 5.1.3 (e.g., design parameters and maintenance activities af fecting visual impacts at major road crossings, areas of significant ridges, and concentrated human settlement). For transmission lines energized at 765 kV or less, experience has shown that there are no known adverse impacts resulting from ozone formation.
C.
The reviewer will predict the overall impact of operation and maintenance of the transmission lines and corridors to man.
IV.
EVALUATION Evaluation of each identified impact will result in one of the follcwing conclusions:
The impact is minor and mitigation is not required. When impacts are of this nature, the reviewer will accept operation and maintenance of the transmis-sion system as proposed.
The impact is adverse but can be mitigated by specific design or procedure modifications that the reviewer has identified and determined to be practical.
For these cases, the reviewer will consult with the project manager and the reviewer for ES Section 9.3.4 for verification that the reviewer's recommended modifications are practical and will lead to an improvement in the benefit-cost balance.
The reviewer will prepare a list of verified modifications and recommended measures and controls to limit the corresponding impact. These lists will be provided the reviewer for ES Section 5.10.2.
The impact is adverse, cannot be success'ully mitigated, and is of such magnitude that it should be avoided. When impac;s of this nature are identi-fied, the reviewer will inform the reviewer for ES Section 9.3.4 that an analysis and evaluation of aiternative designs or procedures is required. The reviewer will participate in any such analysis and evaluation of alternatives that would avoid the impact and that could be considered practical. If no such alternatives can be identified, the reviewer will be responsible for providing this information to the reviewer for ES Section 10.1.
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February 1979 A.
The reviewer will determine whether plans for transmission-line operation are in compliance with applicable regulations and standards. The reviewer will compare predicted noise levels with applicable State and Federal recommended noise criteria for residential areas and for other types of land use.
B.
The reviewer will determine whether the proposed operational parameters and maintenance procedures are those generally recognized as environmentally acceptable.
C.
When the reviewer determines that predicted impacts resulting from the proposed operational design parameters and maintenance procedures are adverse, the reviewer will recommend consideration of imposing measures to mitigate the impact or of alternative transmission system design, operation, or maintenance that will avoid the impact.
V.
INPUT TO THE ENVIRONMENTAL STATEMENT This section of the environmental statement should be planred to accomplish the following objectives:
(1) public disclosure of major impacts resulting from operation of the proposed transmission lines, (2) presentation of the basis for staff analysis, and (3) presentation of staff conclusions, recommandations, and conditions regarding transmission-line impacts to man.
ES Section 5.6.3 will provide an assessment of the impacts to man resulting from transmission-systeL operation and maintenance procedures, including the degree of noise impacts, if any. This will include grounding procedures, appli-cable design features proposed for the reduction of shock potential, and corridor maintenance procedures to mitigate visual impacts.
The presentation of this assessuent will be based on (1) the extent by which the predicted impacts exceed criteris for acceptable levels and (2) potential electrostatic and electromagnetic field effects.
The reviewer will provide inputs or ensure that inputs will be made to the following ES sections:
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February 1979 A.
Section 5.10.
The reviewer will provide the reviewe* for ES Sec-tion 5.10 with a list of measures and controls to limit adverse impacts that are to be recommended for consideration in the licensing process.
B.
Section 9.3.4.
The reviewer will provide the reviewer for ES Sec-tion 9.3.4 with a list of adverse environmental impacts that could be avoided or mitigated through alternative transmission-system routes, designs, operational procedures, or maintenance practices.
The reviewer will assist the reviewer for ES Section 9.3.4 in determining appropriate alternatives.
C.
Section 10.1.
The reviewcr will provide the reviewer for ES Sec-tion 10.1 with a summary of the unavoidable adverse environmental impacts that are predicted to occur as a result of transmission-system operation.
VI.
REFERENCES 1.
Office of Science and Technology, Electric Power and the Environment, August 1970.
2.
Bonneville Power Administration, A Report on Appearance Planning, May 1966, Portland, Oregon.
3.
Bonneville Power Administration, Electrical Effects of Transmission Lines, A Review, June 1977, Portland, Oregon.
4.
Western Systems Coordinating Council, Environmental Guidelines, December 1971.
5.
Electric Research Council and Electric Power Research Institute, Transmission Line Reference Book 345 kV and Abuve, "The Red Book", 1975.
6.
W. Davis, Jr., Ozone Formed by High Voltage Transmission Line Coronas, ORNL Central Files Report No. CF 72-7-25, 1972.
1 108 n<>-
5.6.3-6
February 1979 7.
W.
J. Fern and R.
I. Brabets, " Field Investigation of Ozone Adjacent to High Voltage Transmission Lines", IEEE, Vol. PAS-93, No. 5, pp. 1269-1280, Sept./
Oct. 1974.
8.
H. N.
Scherer, Jr, 8. J. W -
, and C.H. Shih, " Gaseous Effluents Due to EHV Transmission Line Corona", lu/2 IEEE Summer Power Meeting, San Francisco, CA, July 1972.
9.
IEEE Committee Report, "A Guide for the Measurement of Audible Noise from Trans-mission Lines", IEEE Transactions, Power and Apparatus Systems, Vol. PAS-91, pp. 853-856, May/ June 1972.
10.
D. E. Perry, "An Analysis of Transmission Line Audible Noise Based Upon Field and Three-Phase Test Line Measurements", IEEE Transactions, Power Apparatus and Systems, Vol. PAS-91, pp. 857-864, May/ June 1972.
11.
Electric Power Research Institute, Biological Effects of High Voltage Electric Fields, EPRI 381-1, November 1975.
12 U.S. Energy Research and Development Administration, Coupling Corona Effects Research Plan for EHV Transmission Lines, CONS-2053-1, June 1976.
13.
Federal Power Commission Order No. 414, Protection and Enhancement of Natural, Scenic Values in the Design, location and Operation of Project Work, November 27, 1974.
14.
D. R. Muller, Calculations of Electric Field Strength Under Operating Transmis-sion Lines, ADEP Instruction 75-2, U.S. Nuclear Regulatory Commission, February 4, 1975.
15.
Mississippi State University, Proceedings of the First National Symposium on Environmental Concerns in Rights-of-Way Management, 1976.
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c, s
5.6.3-7
February 1979 16.
U.S. Department of e'griculture (Forest Service), National Forest Landscape Management, Volume
'?,
Chapter 2 (Utilities), Agriculture Handbook 478, July 1975.
17.
Rural Electrification Administration, Electrostatic and Electromagnetic Effacts of Overhead Transmissien Lines, REA Bulletin 62-4, May 1976.
18.
National Academy of Sciences, Guidelines for Preparing Environmental Impact Statements on Noise, The National Research Council, Washington, D.C. 1977.
19.
U.S. Environmental Protection Agency, Toward A National Strategy for Noise Control, Apri1 1977.
20.
U.S. Environmental Protection Agency, Information on Levels of Environmental Noise Requisite to Protect Public Health and Welfare With an Adequate Margin of Safety, PB 239/429, March 1974.
21.
U.S. Department of Energy and Battelle Memorial Institute, Pacific Northwest Laboratory, Biological Ef fects of Extremely Low-Frequency Electromagnetic Fields, Eighteenth Annual Hanford Life Sciences Symposium, October 16-18, 1978, Richland, Washington.
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