Appendix 6ab NHDES Alteration of Terrain Permit

324 Pages·2015·48.04 MB·English

Application for State of New Hampshire
Department of Environmental Services
Alteration of Terrain Permit
for the
Northern Pass Transmission Project
New Hampshire
Prepared For
Northern Pass Transmission, LLC and
Public Service Company of New
Hampshire d/b/a Eversource Energy

Prepared By
Normandeau Associates, Inc.
25 Nashua Road
Bedford, NH 03110
www.normandeau.com

October 2015
October 15, 2015

Ridgely Mauck, P.E., Program Supervisor - Permitting
NHDES Land Resources Management
Alteration of Terrain Bureau
PO Box 95
29 Hazen Drive
Concord, NH 03302

RE: Northern Pass Transmission Project - NHDES Alteration of Terrain Permit
Application

Dear Mr. Mauck:
On behalf of Northern Pass Transmission LLC, Normandeau Associates, Inc. is pleased
to provide the attached application for an Alteration of Terrain (AOT) permit for work
associated with the proposed Northern Pass Transmission Project for your review.
Northern Pass is a 192-mile transmission line project that will bring 1,090 megawatts
(MW) of clean, affordable energy from Hydro-Québec’s world-class hydroelectric plants
in Canada to New Hampshire and to the rest of New England. To bring this energy to
the region, the project will build a new direct current (DC) transmission line from the
Canadian border to Franklin, NH, where a converter terminal will be built to convert the
electricity from DC to alternating current (AC). From there, a new AC transmission line
will carry the energy to an existing substation in Deerfield, NH and into New England’s
electric grid.
The AOT permit application for the Northern Pass project includes a request for two
waivers. As discussed with you and your staff, the application includes a reduced scale
plan size (11X17) for transmission line portions of project, with full size plans only for
the nine site developments; and site specific soil mapping only for the nine site
developments and not for the transmission line.
This application was provided to all municipalities and Local River Advisory
Committees in the project area, and certified mailing receipts are included as proof of
delivery.

Corporate Office: Normandeau Associates, Inc.  25 Nashua Road  Bedford, NH 03110  [phone]
www.normandeau.com
NH DES Alteration of Terrain Bureau
October 15, 2015
Page 2

We appreciate the pre-application meetings and informal discussions and guidance
provided by you and your staff throughout this process. Thank you, in advance, for
your review of this application. Please feel free to contact me if you have any questions
or require additional information.
Sincerely,

Lee E. Carbonneau
As agent for Northern Pass Transmission, LLC.
Senior Principal Scientist
Normandeau Associates, Inc.

Attach.

Cc: Robert Clarke, Director, Transmission Business Operations, Eversource Energy
Kevin F. McCune, Supervisor, Environmental Affairs Licensing and Permitting
Governing Bodies of 34 Municipalities

Normandeau Associates, Inc.
TABLE OF CONTENTS
1.0 Copy of the Alteration of Terrain Application Form and Checklist ...................... 1
2.0 Copy of Check for Application Fee ............................................................. 2
3.0 USGS Locus Maps with Property Boundaries .................................................. 4
4.0 Project Proposal ................................................................................... 5
4.1 Introduction ................................................................................................ 5
4.2 Transmission Project Location and Route ............................................................ 5
4.3 Facility Components and Construction ................................................................ 7
4.4 Construction Phase Water Withdrawals and Discharges .......................................... 13
4.5 Construction Phase Erosion and Sedimentation Controls ......................................... 14
4.6 Operational Phase ....................................................................................... 16
5.0 Surface Water Impairments—Web GIS ........................................................ 18
6.0 AoT Screening Layers—Web GIS ................................................................ 27
7.0 NHNHB Coordination ............................................................................. 36
8.0 Web Soil Survey Map ............................................................................. 51
9.0 Aerial Photographs ............................................................................... 52
10.0 Representative Photographs .................................................................... 61
11.0 Groundwater Recharge Volume Calculations ................................................ 86
12.0 BMP Worksheets .................................................................................. 87
 Appendix A Stormwater Management Study—Transition Station 1 ...................... (cid:36)(cid:16)(cid:20)
 Appendix B Stormwater Management Study—Transition Station 2 ...................... (cid:37)(cid:16)(cid:20)
 Appendix C Stormwater Management Study—Transition Station 3 ...................... (cid:38)(cid:16)(cid:20)
 Appendix D Stormwater Management Study—Transition Station 4 ...................... (cid:39)(cid:16)(cid:20)
 Appendix E Stormwater Management Study—Transition Station 5 ...................... (cid:40)(cid:16)(cid:20)
 Appendix F Stormwater Management Study—Transition Station 6 ...................... (cid:41)(cid:16)(cid:20)
 Appendix G Stormwater Management Study—Converter Terminal ...................... (cid:42)(cid:16)(cid:20)
 Appendix H Stormwater Management Study—Deerfield Substation ..................... (cid:43)(cid:16)(cid:20)
 Appendix I Stormwater Management Study—Scobie Pond Substation .................. (cid:44)(cid:16)(cid:20)
 Appendix J-1 Site Development Plan Drawings .............................................(cid:45)(cid:16)(cid:20)(cid:16)(cid:20)
 Appendix J-2 NHDES Alteration of Terrain Permit Application Plans ...................(cid:45)(cid:16)(cid:21)(cid:16)(cid:20)
 Appendix J-3 Underground Alignment Drawings ...........................................(cid:45)(cid:16)(cid:22)(cid:16)(cid:20)
 Appendix K Parcel Landowner List .......................................................... (cid:46)(cid:16)(cid:20)
 Appendix L Wetlands, Streams, and Vernal Pools Report ............................... (cid:47)(cid:16)(cid:20)
 Appendix M Alteration of Terrain Agency Meeting Notes ............................... (cid:48)(cid:16)(cid:20)
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 Appendix N Laydown Yard Site Reconnaissance Report................................. (cid:49)(cid:16)(cid:20)
 Appendix O Draft Stormwater Pollution Prevention Plan (SWPPP) .................... (cid:50)(cid:16)(cid:20)

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1.0 Copy of the Alteration of Terrain Application Form and
Checklist

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