Dominion's Joint Permit Application Part 1 for Water/Wetlands Permits for North Anna Unit 3 ...

419 Pages·2010·20.33 MB·English

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Prepared by:

EA Engineering, Science,
and Technology, Inc.
15 Loveton Circle
Sparks, MD 21152

Prepared for:

Dominion Virginia Power
5000 Dominion Boulevard
Glen Allen, VA 23060
September 2010
1
JOINT PERMIT APPLICATION

FOR AN INDIVIDUAL PERMIT

PROPOSED UNIT 3
NORTH ANNA POWER STATION

LOUISA, ORANGE, SPOTSYLVANIA, HANOVER,
CAROLINE, AND KING WILLIAM COUNTIES,
VIRGINIA

ADDENDUM 1
RESPONSE TO ADDITIONAL REGULATORY
INFORMATION REQUESTS

Prepared by:
EA Engineering, Science, and Technology, Inc.

Prepared for:
Dominion Virginia Power

September 2010
UNIT 3 NORTH ANNA POWER STATION
JOINT PERMIT APPLICATION ADDENDUM 1

TABLE OF CONTENTS

RESPONSE TO COMMENTS NARRATIVE

ATTACHMENTS

ATTACHMENT A REVISED GRID SHEETS

ATTACHMENT B TABLE AND FIGURES

B-1 Table 6. Permanent and Temporary Wetland and
Stream Impact Details
B-2 Other Referenced Figures

ATTACHMENT C REVISED APPLICATION SECTIONS

C-1 Revised JPA Section 2
C-2 JPA Sections 15 and 16 – Roll-Off Component of the
Large Component Transport Route
C-3 JPA Section 16 – Intake Structure

ATTACHMENT D WETLAND AND STREAM MITIGATION

D-1 Woodford Mitigation Bank Credit Availability Letter
D-2 Figures
D-3 Revised Form 3s

ATTACHMENT E ADJACENT PROPERTY OWNER INFORMATION

ATTACHMENT F RESTORATION PLAN FOR WALKERTON
LANDING
Dominion Virginia Power Proposed Unit 3
North Anna Power Station Mineral, Louisa County, Virginia
RESPONSE TO COMMENTS

In response to a letter from the Virginia Department of Environmental Quality (VDEQ) dated
July 29, 2010, an email from the U.S. Army Corps of Engineers (USACE) dated July 27, 2010,
and a site visit with Virginia Marine Resources Commission (VMRC) on August 19, 2010,
Dominion received requests for additional information to support continued regulatory review of
our Joint Permit Application (JPA) submitted to the agencies on July 16, 2010. This addendum
is intended to provide the agencies with their requested information to facilitate regulatory
processing of the JPA.

USACE COMMENTS

1a. Please provide the names and physical locations of the facilities in which Dominion
will make information available for adjacent property owner review.

Name of Facility Address Phone # Location
Jefferson-Madison Regional 201 E Market Street Louisa County,
(434)-979-7151
Library Charlottesville, VA 22902 Virginia
881 Davis Highway Louisa County,
Louisa County Public Library (540)-894-5853
Mineral, VA 23117 Virginia
7527 Library Drive Hanover County,
Hanover Branch Library (804)-365-6210
Hanover, VA 23069 Virginia
146A Madison Road
Orange County,
Orange County Public Library Orange, VA 22960 (540)-672-3811
Virginia
2607 Salem Church Road Spotsylvania
Salem Church Library (540)-785-9267
Fredericksburg, VA 22407 County, Virginia
C. Melvin Snow Memorial 8740 Courthouse Road Spotsylvania
(540)-507-7565
Branch Spotsylvania, VA 22553 County, Virginia
North Anna Nuclear Information 1022 Haley Drive Louisa County,
(540)-894-2029
Center (NANIC) Mineral, VA 23117 Virginia

1b. Is it Dominion's intention to make a copy of the Joint Permit Application available or
only the public notice and drawing attachments?

A complete copy of the Joint Permit Application will be available at the six libraries mentioned
above, the NANIC, and Dominion’s website. Dominion will also make this Addendum #1
available at each of these public locations. See comment #3 for the website address.

2. On grid sheet 12 showing impacts for the intake structure, does "open water" refer to
Lake Anna? Is it correct that the temporary cofferdam, culverts and rip rap will be
placed in Lake Anna?
Joint Permit Application 1 September 2010
Addendum 1
Dominion Virginia Power Proposed Unit 3
North Anna Power Station Mineral, Louisa County, Virginia
Open water refers to Lake Anna on Grid Sheet 12. The temporary cofferdam, culverts, and
rip-rap shown on Grid Sheet 12 will be placed in Lake Anna. A revised Grid Sheet is located
in Attachment A.
3. Please see the attached notations on the Unit 3 site impacts for the printed public
notice. It will not be feasible to place all drawings in the public notice itself, so it will be
important to convey information about the project sufficient for commenting. Does
your agency have the capacity to host a website to make attachments D- 1 and D-2
viewable electronically? If so, how would we go about accomplishing that and what
would that web address be?
Dominion has developed an environmental component within the existing North Anna website
to make the entire JPA (including Attachment D of the JPA submitted on July 16, 2010)
available for the public notice. Information on the potential third unit at NAPS can be found by
visiting http://dom.com, keyword “Unit 3” or by visiting
http://dom.com/about/stations/nuclear/north-anna/north-anna-3.jsp.
4. The Corps' is evaluating options to complete the printing and mailing of the public notice.
You have already provided printed mailing labels, but we would like to know if it is
possible for Dominion to provide an Excel or Access file with each line of the address in
a separate column. For example column 1 is the NAME, 2 is the Company name (if
applicable), 3 is the street address, etc. for the adjacent property owners.
An electronic copy in Excel format will be provided under separate cover. For additional
reference, Attachment E contains a revised version of the adjacent property owner information.

VDEQ COMMENTS

Large Component Transport Route Related

1. Based upon staff's review of the Joint Permit Application (JPA) in regards to
proposed activities associated with the Roll-off Location at Walkerton Bridge of the
Large Component Transport Route, we have the following comments:
1a. Based upon Grid No. 13, it appears that all impacts to surface waters are not
accounted for in the JPA. The impacts map depicts a temporary bulkhead and cofferdam
that will be placed within the Mattaponi River, but these areas are not shown as
impacted. Please update the impacts table and map to depict these areas of the stream
channel as being impacted.
A revised impact table can be found in Attachment B-1. Revised Grid Sheets, including Grid
Sheet 13, are located in Attachment A.
1b. Complete Sections 15 (Boat Ramps) and 16 [Tidal/Nontidal Shoreline Stabilization
Structures Marsh Toe Stabilization, Groins, Jetties, and Breakwaters, Etc.)] for the boat
ramp and cofferdam activities.
Joint Permit Application 2 September 2010
Addendum 1
Dominion Virginia Power Proposed Unit 3
North Anna Power Station Mineral, Louisa County, Virginia
Please see Attachment C-2 for JPA Sections 15 and 16.
1c. Explain the activities associated with the roll-on and roll-off ramp so that we can
determine if the proposed activity will impact the stream channel
The structures associated with the roll-off component of the Large Component Transport Route
will be in place for approximately 3 years. Construction of the roll-off component will begin
during the second half of 2013 and will be in use until 2017. In 2018, the location of the roll-
off component will be restored to pre-construction contours. Temporary wetland and stream
impacts associated with the roll-off facility are depicted in Table 6 located in Attachment B-1.
A plan view and cross section of the roll-off facility shown in Grid Sheet 13, located in
Attachment A. A restoration plan for the Walkerton Landing roll-off area is located in
Attachment F. The general sequence of construction activities is as follows:
Dominion Sheet Pile Construction Sequence:
1. Locate and mark existing utilities
2. Construct perimeter erosion and sediment controls for proposed work area and contractor
staging area
3. Construct turbidity curtain
4. Locate and mark existing boating channel
5. Install shoreline protection
6. Drive sheet piles
7. Place wales, anchors and tie-rods (if necessary)
8. Drive timber pilings (exterior to sheet piles) for tying off purposes (number of pilings
contingent on design)
9. Pump interior of sheet pile wall dry (intermittently)
10. Backfill interior of sheet pile wall with clean gravel in two-foot lifts
11. Construct roadway extension to tie existing road into cofferdam
12. Place steel plates over gravel
13. Remove perimeter erosion and sediment controls
14. Remove turbidity curtain
Dominion Sheet Pile Restoration Sequence:
1. Locate and mark existing utilities
2. Construct perimeter erosion and sediment controls
3. Construct turbidity curtain that effectively encloses the area to be developed
4. Locate and mark existing boating channel
5. Remove steel plates
6. Excavate/remove aggregate
7. Remove wales, anchors and tie-rods.
8. Remove sheet piles
9. Remove timber piles
Joint Permit Application 3 September 2010
Addendum 1
Dominion Virginia Power Proposed Unit 3
North Anna Power Station Mineral, Louisa County, Virginia
10. Restore bathymetry of river
11. Restore vegetation
12. Remove perimeter erosion and sediment controls
13. Remove turbidity curtain
Materials of Construction:
1. Erosion and sediment control materials (e.g., silt fence, super silt fence, rip rap, stabilized
construction entrance, turbidity curtain)
2. Heavy-gauge steel sheetpile
3. Timber piles
4. Clean aggregate backfill
1d. Temporary impacts to 115 linear feet of stream channel are listed in the impacts
table and mentioned under Attachment C in the mitigation plan; however, the Narrative
section of the JPA does not mention these temporary impacts. Please explain this
discrepancy, the activities proposed to temporarily impact the stream channel, and revise
the narrative to include a complete description of the proposed activities at this location.
The design for the Large Component Transport Route has been modified since the July 16,
2010 JPA submittal as a result of the recent field SAV and bathymetry surveys. In order to
accommodate a wider barge, the roll-off facility was re-designed. Temporary impacts
associated with the roll-off component of the Large Component Transport Route are
shown in Table 6 located in Attachment B-1. The roll-off component will temporarily
impact approximately 10,577 square feet (0.24 acres) of wetlands, approximately 210
linear feet of stream channel due to a temporary cofferdam and temporary shoreline
stabilization, and approximately 305 linear feet of stream channel due to timber pilings.
Table 6 has been updated to depict the temporary impacts. Please see Attachment B-1 for
the revised Table 6. Grid Sheet 13, located in Attachment A, depicts the roll-off facility.
2. The Large Component Transport Route proposes to cross the North Anna River just
north of the bridge for Route 30. Based upon the information provided, staff is unable
to determine if surface waters impacts are associated with the proposed structure that
will span the river. If any portion of the spanning structure or support structures (such as
riprap) is proposed to be placed within the river, these activities require authorization.
Please provide a plan view of the proposed crossing and a narrative discussing the
proposed activities, including the proposed length of time structures are proposed to be
in-place and any actions that will be taken to restore the areas to preconstruction
contours and elevations and reestablish any lost vegetation.
Figure 1 in Attachment B-2 depicts the proposed bridge to cross the North Anna River. No
impacts (including instream work) will occur at this crossing because no portion of the spanning
structure or support structures is proposed to be placed within the North Anna River. The
temporary bridge will be in place for approximately 3 years. Afterwards, the upland locations of
the proposed bridge will be restored to pre-construction contours, where necessary.

Joint Permit Application 4 September 2010
Addendum 1
Dominion Virginia Power Proposed Unit 3
North Anna Power Station Mineral, Louisa County, Virginia
Water Intake Structure Related
3. The activities proposed with the water intake structure for Unit No. 3 appear to
include riprap stabilization. Please complete Section 16 [Tidal/Nontidal Shoreline
Stabilization Structures (including Bulkheads and Associated Backfill, Riprap
Revetments and Associated Backfill, Marsh Toe Stabilization, Groins, Jetties, and
Breakwaters, Etc.)] of the JPA for these activities at this location.
Section 16 of the JPA has been completed for the proposed Unit 3 water intake structure, and is
included as Attachment C-3 to this Addendum.
4. It is unclear if the proposed activities associated with the water intake structure for
Unit No. 3 will result in temporary impacts to surface waters. The Narrative section of
the JPA does not discuss temporary impacts; however, page 5 of the compensation plan
under Attachment C of the JPA indicates temporary impacts are associated with this
activity. Based upon our review of Grid No. 12, we have the following comments:
4a. On the Lake Anna side of the berm, a temporary cofferdam is proposed. Use of a
cofferdam is an activity that requires authorization. Please update the impacts table
and map accordingly.
The cofferdam proposed at the intake structure is considered a temporary impact. Temporary
impacts associated with the cofferdam include approximately 22,356 square feet (0.51 acres).
Table 6 has been revised and is located in Attachment B-1.
4b. It is unclear if the area on the side of the berm opposite of Lake Anna is a surface
water (i.e. open water). If this area is surface water, activities within this area require
authorization. Please clarify the proposed activity and associated impacts in this location
and update the impacts table and map accordingly.
The USACE – Norfolk District did not take jurisdiction on the side of the berm opposite of Lake
Anna. Also, VDEQ does not consider the side of the berm opposite of Lake Anna as an open
water feature. Thus, the area opposite of Lake Anna is not considered a jurisdictional surface
water, and compensatory mitigation is not required. The impacts associated with breaching the
berm are accounted for on the Lake Anna side of the berm.

Cooling Tower Location and Route 700 Parcels Related

5. Two parallel dark lines are shown on the "Wetland and Stream Impacts Grid Key
Sheet" dated July 2010 to extend from existing transmission lines near Grid No. 8 to
Grid No. 5 and potentially on to Grid No. 2 (extent of the lines is unclear due to change
in the weight of the line drawing). Do these parallel lines represent proposed or existing
overhead transmission lines? If the lines are proposed, will non-impacted surface waters
crossed by these lines be impacted? For instance, if the systems are palustrine forested
wetlands, will trees be cut? If so, conversion of a wetland is a permanent impact that
requires authorization and compensation.

Joint Permit Application 5 September 2010
Addendum 1
Dominion Virginia Power Proposed Unit 3
North Anna Power Station Mineral, Louisa County, Virginia
The parallel lines represent existing overhead transmission lines. The line weights in the Grid
Sheets have been made consistent throughout. The set of revised Grid Sheets are located in
Attachment A.

Compensation Related

6. The compensation plan proposes to purchase credits from two approved
mitigation banks, one of which is New Kent Environmental Bank. Portions of the
impact sites located within Louisa County are outside of the service area for this
bank. DEQ staff initiated coordination on your staff's behalf with the
Interagency Review Team (IRT) during the pre-application stage of this project
on October 19, 2009. Staff was informed by email received November 10, 2009,
that the request for out-of-service area approval was denied and this decision was
provided to your staff on the same date. DEQ staff has not received more recent
correspondence indicating a reversal of the IRT's decision. If written IRT approval
has been obtained, please submit this documentation. If not, please propose
another approved mitigation bank as the second bank proposed, Woodford
Mitigation Bank, does not have sufficient stream credits available to meet the
project's needs.

Woodford Mitigation Bank is in the process of obtaining additional stream credits that
will service the Unit 3 project area. A revised Credit Availability Letter (dated 9
September 2010) is located in Attachment D-1. Dominion proposes to purchase all
necessary wetland and stream credits from Woodford Mitigation Bank. If mitigation
requirements cannot be completely satisfied with Woodford Mitigation Bank,
Dominion proposes to satisfy the remaining compensation requirements through a trust
fund.
7. Preservation of surface waters is proposed as a component of the stream compensation
plan presented under Attachment C of the JPA. In accordance with 9 VAC 25-2 10-
80.B.k(5)(c), please provide draft deed restriction language. Note that DEQ accepts the
draft language used by the U.S. Army Corps of Engineers (USACE); however, the
language should reflect the following:
7a. It shall be written so that no activity will be performed on the property in any area
designated as a compensation site or non- impacted surface water, with the exception of
maintenance or corrective action measures authorized by DEQ.
7b. Unless otherwise authorized by DEQ, the restrictions apply to ditching, land
clearing, or the discharge of dredge or fill material. The language shall include in the
restricted activities the specific phrase "ditching, land clearing, or discharge of dredge or
fill material."
WHEREAS, (_________) is the owner of the Property more fully described on Exhibit A
attached hereto; and,

Joint Permit Application 6 September 2010
Addendum 1
Dominion Virginia Power Proposed Unit 3
North Anna Power Station Mineral, Louisa County, Virginia
WHEREAS, (_________) desires to impose on said Property restrictive covenants
expressing (_________) 's intent to preserve ______acres of said property as shown on Exhibit
B and as described as _____ stream channels totaling _____ linear feet with associated 200-foot
riparian buffer areas subject to restrictive covenants (e.g. “wetlands subject to restrictive
covenants”) in perpetuity in its natural state as detailed below. These covenants are imposed by
Owner freely and voluntarily, in order to assure that the aquatic impacts pursuant to permit
#_______ shall be minimal.

NOW THEREFORE THIS DECLARATION WITNESSETH: (___________) does
hereby declare, covenant and agree, for itself and its successors and assigns, that said Property
described as ________________ shown on Exhibit B shall be hereafter held, leased, transferred,
and sold subject to the following conditions and restrictions which shall run with the land and be
binding on all parties and persons claiming under them.

Covenants and Restrictions.
The Property described as ___________ shown on Exhibit B attached hereto shall be
preserved in perpetuity in its natural state, by prohibiting the following activities:

1. Destruction or alteration of the preservation area shown on Exhibit B with the
exception of maintenance or corrective action measures or other alterations authorized by
the Norfolk District, U.S. Army Corps of Engineers (USACE) and/or the Virginia
Department of Environmental Quality (DEQ) under Permit Number _________;

2. Construction, maintenance or placement of any structures or fills including but not
limited to buildings, mobile homes, fences, signs other than those which currently exist.
(OPTIONAL EXCEPTION: However, boardwalks, wildlife management structures,
observation decks, one informative sign, and unpaved foot trails may be placed within the
preservation area provided that any such structure permits the natural movement of
water and preserves the natural contour of the ground and subject to prior written
approval by the USACE and/or DEQ);

3. Ditching, draining, diking, damming, filling, land clearing, excavating, grading,
plowing, flooding/ponding, mining, drilling, placing of trash and yard debris or
removing/adding topsoil, sand, or other materials or the discharge of dredge or fill
material (except as may be necessary on a case-by-case basis with prior written approval
by USACE and/or DEQ);

4. Cultivating, harvesting, cutting, logging, planting, and pruning of trees and plants, or
using fertilizers and spraying with biocides (except as may be necessary on a case-by-
case basis with prior approval by USACE and/or DEQ);

Amendment
The covenants contained herein shall not hereafter be altered in any respect without the
express written approval and consent of the Owner or its successor in interest and the USACE
and DEQ. The Owner or its successor may apply to the USACE and DEQ for vacation or
modification of this declaration; however, after recording, these restrictive covenants may only
Joint Permit Application 7 September 2010
Addendum 1