HomeMy WebLinkAbout20061430 Ver 1_COMPLETE FILE_20060905.04
September 1, 2oo6
Mr. James Shern
U.S. Army Corps of Engineers
Wilmington District, Raleigh Field Office
65o8 Falls of the Neuse Road, Suite 120
Raleigh, North Carolina 27615
Subject:
WETLAND & ECOLOGICAL CONSULTANTS, LLC
C07"
20061430
x O U RTESY
Preconstruction Notification W r-
Nationwide Permit Nos. 3 and 18
Colonial Pipeline Company Exposed Pipe Maintenance
Swift Creek Site
Johnston County, North Carolina
WEC Project No. 02-04igoi-Hwy 42
Dear Mr. Shern:
p c?ugadl"4 p
D
SEP 5 NU6 ENR VMT °u ANO STOKM?*I NtMol
On behalf of our client, Colonial Pipeline Company, Wetland & Ecological Consultants
(WEC) respectfully requests authorization for the above referenced project pursuant to
Nationwide Permit (NWP) Nos. 3 and 18 for Maintenance and Minor Discharges,
respectively. The use of NWP 18 for this project requires the submittal of this
preconstruction notification (PCN). The proposed action consists of a maintenance
activity (NWP 3) required for an existing and serviceable petroleum pipeline located
within a maintained right-of-way (ROW), and subsequent streambed stabilization and
pipeline protection (NWT 18). The proposed activities will require disturbance to one of
the braided channels of Swift Creek in Johnston County, North Carolina, at 35° 36'3o" N
and 780 32'44" W (Figure i).
Background
CPC's maintained ROW is approximately 6o feet in width at the location of the proposed
project, and contains three existing pipelines (Lines 22, 23, and 24). Line 22 is 16 inches
in diameter and transports refined petroleum products. Lines 23 and 24 are both eight
inches and diameter, but are not currently used for petroleum transport. Past high flow
events in one of the braided channel of Swift Creek has resulted in bank/channel erosion
within CPC's ROW (Photograph No. i). These high flow events have resulted in the
channel becoming more incised, exposing all three of CPC's pipelines within the creek
,3225 South Cherokee Lane Phone: 770-591-9990
Bldg. Boo Fax: 770-591-9993
Woodstock, Georgia 3o188 immivet-eco.com
PCN1VWPNos.3 and i8 Septembers, 2oo6
Colonial Pipeline Company - Swift Creek WEC Project No. o2-o4igoi
channel (Photograph Nos. 2 and 3); this exposure has significantly reduced the required
protection level of these pipelines.
Proposed Activity in Waters of the U.S.
The maintenance activity will require temporary disturbance to approximately 25 linear
feet of the referenced channel. After the maintenance activities are completed, all three
pipelines will be protected using pre-cast concrete revetment mats that will be placed
into approximately 25 linear feet the stream channel (Appendix A). The quantity of this
"fill material" below the plane of the ordinary high water mark will be approximately 18
cubic yards.
To ensure the integrity of the active pipeline (Line 22), CPC will initially inspect the
pipeline for any damages. This will require CPC to excavate a small area over pipeline
location to be inspected. To minimize sedimentation to the creek during the inspection
and subsequent maintenance activity, temporary dams will be constructed at each end of
the maintenance area and the stream flow will be pumped around the maintenance area.
The dams will be constructed of sandbags or other suitable material, and the pumps used
will be able to sufficiently accommodate the stream flow. The pumps will be installed
above the upstream dam with the discharge line routed through the maintenance area,
discharging immediately downstream of the downstream dam (Appendix B).
As an alternative method to using a pump, CPC may use a steel pipe flume to convey the
stream flow through the reach of stream to be disturbed. The flume will be used to
maintain flow to the downstream side of the maintenance area, and the excavation will
be carried out under the flume (Appendix Q. Both techniques allow the maintenance to
take place without contact to flowing water, thus reducing downstream sedimentation.
Regardless of technique, upon completion of the maintenance activity, the stream
channel will be returned to its original contours (prior to the erosion) and the flow will
be restored.
After the inspection, the Line 22 will be recoated (if necessary), and buried beneath a six-
inch diameter geotube (i.e., elongated sandbag). To prevent future erosion of the
streambed at this location, and to protect the pipeline from damage, pre-cast concrete
revetment mats will be used to cover and protect the pipeline while stabilizing the
2
PCNNWP Nos. 3 and 18 September 1, 2006
Colonial Pipeline Company - Swi, f t Creek WEC Project No. 02-041901
excavated portions of the streambed as depicted in Appendix A. The revetment mat will
extend approximately 25 linear feet within the stream channel. The stream banks will be
stabilized with geotextile erosion control mats, and CPC's Soil Erosion and
Sedimentation Control Plan will be implemented to protect the stream from
sedimentation (Appendix D).
The segments of the inactive pipelines (Lines 23 and 24) that are currently exposed
within the stream will be removed. This activity will not encroach into the stream or
other jurisdictional areas (Appendix A). To meet U.S. Department of Transportation
(USDOT) guidelines for pipeline integrity, the repair must be completed by October 21,
2oo6.
Nationwide Permit General Conditions Summary
We have provided the following information to document compliance with the USACE
NWP general conditions. Each condition and subcategory is itemized below.
General Condition 1- Navigation
The project site does not occur within navigable waters.
General Condition 2 - Proper Maintenance
The existing pipelines and ROW will continue to be maintained and inspected on a
regular basis to ensure public safety.
General Condition ? - Soil Erosion and Sediment Controls
Best Management Practices and proper erosion and sedimentation controls will be
followed during the maintenance activity (Appendix D).
General Condition 4 - Aquatic Life Movements
The maintenance activities within the stream will be minimal and temporary. The
revetment mats will be "keyed" into the streambed, and will not impede the passage
of normal stream flow or aquatic life.
General Conditions - Equipment
Equipment will be operated from the stream banks.
3
PCNNWP Nos. 3 and 18 September 1, 2oo6
Colonial Pipeline Company - Swift Creek WEC Project No. o2-o41go1
General Condition 6 -Regional and Case-By-Case Conditions
Final Regional Conditions for Nationwide Permits in the Wilmington District
1. Waters Excluded from NWP or Subject to Additional Notification
Requirements:
a. Waters excluded from the use of NWP:
1) Waters designated as anadromous fish spawning areas.
Not applicable
2) Waters of the U.S. designated as sturgeon spawning areas.
Not applicable
b. Waters subject to additional notification requirements:
1) Waters designated as "Outstanding Resource Waters"
(ORW), "High Quality Waters" (HQW), "Inland Primary
Nursery Areas" (IPNA), contiguous wetlands, or "Primary
Nursery Areas" (PNA).
Not applicable
2) Waters in a designated "Area of Environmental Concern"
(AEC) in the 20 coastal counties of eastern North Carolina.
Not applicable
3) Waters on a Barrier Island of North Carolina.
Not applicable
4) "Mountain or Piedmont Bog" of North Carolina.
Not applicable
5) Mountain Trout Waters within the 25 designated counties
of North Carolina.
Not applicable
6) Areas closed to shell fishing.
Not applicable
4
PCNNWP Nos, 3 and 18 September 1, 2oo6
Colonial Pipeline Company - Swift Creek WEC Project No. 02-041901
2. List of Final Corps Regional Modifications and Conditions for All
Nationwide Permits:
a. Individual or multiple NWPs may not be used for activities that
result in the cumulative loss or degradation of greater than 300
total linear feet of streambed that exhibits important aquatic
functions.
The use of multiple NWPs (3 and 18) will not result in greater than
300 linear feet of disturbance to the streambed.
b. Impacts to more than 150 total linear feet of perennial streambed
or intermittent streambed (if the intermittent stream has
important aquatic function) require notification and
compensatory mitigation.
Cumulative stream impacts will not exceed 150 linear feet.
C. For all NWPs which allow the use of concrete as a building
material, measures will be taken to prevent live or fresh concrete,
including bags of uncured concrete from coming into contact with
waters of the state until the concrete has hardened.
The concrete revetment mats that will be used to stabilize the
streambed and protect the pipelines from future exposures are
pre-cast and hardened before they are placed in the stream.
d. For all NWPs that allow for the use of rip rap material for bank
stabilization, filter cloth must be placed underneath the riprap.
Not applicable, no rip rap will be used in this project.
e. For all NWPs that involve the construction of culverts, measure
will be included in the construction that will promote the safe
passage of fish and aquatic organisms.
Not applicable
3. Additional Regional Conditions Applicable to these Nationwide Permits:
NWP 18 may not be used in conjunction with NWP 14 to create
high ground for road access using NWP 14.
Not applicable
North Carolina Division of Water Quality (DWQ) General Certification
Conditions for NWP 18 (GS2362) (WOC No. 2402)
1. Enumerating and Reporting of Impacts:
Streams - Impacts to streams shall be measured as length of the
centerline of the normal flow channel. Permanent and/or
5
PCNNWPNos. 3 and 18
Colonial Pipeline Company - Swift Creek
September 1, 2006
14EC Project No. 02-041901
temporary stream impacts shall be enumerated on the entire
project for all impacts regardless of which NWPs are used. Stream
relocations and stream bed and/or bank hardening are considered
to be permanent impacts.
This project will cause temporary disturbance to approximately 25
linear feet of a braided channel of Swift Creek during the
inspection and maintenance activity (i.e., temporary disturbance
authorized by NWP 3). After any required maintenance, in the
same 25-linear foot segment of the stream, concrete revetment
mats will be placed over the pipelines as depicted in Appendix A,
This approach will stabilize the recently excavated stream bottom
while protecting the active pipeline (Line 22) from future exposure
(i.e., permanent impacts authorized by NWP 18)
b. Wetlands - Impacts to wetlands shall be measured as area.
Permanent and/or temporary wetland impacts shall be
enumerated on the entire project for all impacts regardless of
which NWPs are used.
Not applicable.
C. Lakes and Ponds - Impacts to waters other than streams and
wetlands shall be measured as area.
Not applicable
d. Total stream impacts greater than or equal to 150 cumulative feet
of stream length for the entire project require written notification
to and approval by the DWQ.
Not Applicable, less than 150 linear feet will be impacted.
e. Impacts to waters of equal to or greater than 1/3 of an acre require
written notification to and approval by the DWQ.
Not applicable, the area of the stream impacts is less than 1/3 acre
f. Wetland impacts of greater or equal to 1/3 of an acre east of I-95
and 1/10 of an acre west of I-95 require written notification to and
approval by the DWQ. Any impacts to wetlands adjacent to waters
designated as ORW, SA, WS-I, WS-II or Trout or are designated as
North Carolina or National Wild and Scenic River and wetlands
classified as SWL and/or UWL as well as wetlands described in
15A NCAC 2H.o5o6 (e) require a complete application and written
concurrence from DWQ.
Not applicable.
g. Written notification to DWQ is required for all applications that
propose to use NWP 18. This notification requirement will be
satisfied by providing two copies of the PCN form to DWQ at the
6
PCNNWPNos. 3 and 18
Colonial Pipeline Company - Swift Creek
September 1, 2oo6
WECProjectNo. o2-o4igoi
same time that the PCN form is sent to the USACE. A formal
application and fee is not required unless DWQ decides that an
Individual Certification will be required for the project.
Two copies of this PCN submittal will be submitted to DWQ to
satisfy this requirement.
h. Proposed fill or substantial modification for any amount of
wetlands classified in accordance with 15A NCAC 2B.olo1 (e) (7)
as Unique Wetlands (UWL) shall require written concurrence
from DWQ.
Not applicable
2. Impacts to any stream length in the Neuse, Tar-Pamlico or Randleman
River Basins (or any other major river basins with Riparian Area
Protection Rules [Buffer Rules] in effect at the time of application) require
written concurrence under the above referenced Certification.
As specified in the DWQ "Redbook" [15A NCAC 02B.0233 (3)(b)(i)], the
maintenance activity is exempt from the riparian buffer protection
permitting requirements.
3. Irrespective of other application thresholds in the General Certification all
impacts to perennial waters and their associated buffers require written
approval from DWQ.
As specified in the DWQ "Redbook" [15A NCAC 02B.0233 (3)(b)(i)], the
maintenance activity is exempt from the riparian buffer protection
permitting requirements.
4. Additional site-specific stormwater management requirements may be
added to this Certification at DWQ's discretion on a case-by-case basis for
projects that have or are anticipated to have impervious cover of greater
than 30 percent.
Not applicable
5. Compensatory stream mitigation shall be required at a 1:1 ratio for all
perennial and intermittent stream impacts equal to or exceeding 150 feet
and that require application to DWQ in watersheds classified as ORW,
HQW, Tr, WS-I and WS-II.
Not applicable
6. In accordance with North Carolina General Statute Section 143-215.31)(e),
any application for a 401 Water Quality Certification must include the
appropriate fee.
As described above [General Condition 6 - DWQ General Certification
Condition 1(g)], formal application and a fee is not required for the use of
NWP 18.
7
PCNNWPNos. 3 and 18 September 1, 2oo6
Colonial Pipeline Company - Swift Creek WEC Project No. 02-041901
7. In accordance with 15A NCAC 2H.05o6(h), compensatory mitigation may
be required for impacts to 150 linear feet or more of stream and/or one
acre or more of wetlands for an entire project.
Not applicable
8. For any project involving the re-alignment of streams, a stream relocation
plan must be included with the 401 application for written DWQ
approval.
Not applicable
9. Placement of culverts and other structures in waters, streams, and
wetlands must be placed below the elevation of the streambed to allow
low flow passage of water and aquatic life.
The revetment mat will be placed below the streambed elevation as
depicted in Appendix A.
io. Appropriate sediment and erosion control practices which equal or exceed
those outlined in the most recent version of the "North Carolina Sediment
and Erosion Control Planning and Design Manual" or the "North Carolina
Surface Mining Manual" whichever is more appropriate shall be in full
compliance with all specifications governing proper design, installation
and operation and maintenance of such Best Management Practices in
order to assure compliance with the appropriate turbidity water quality
standard.
Best Management Practices and proper erosion and sedimentation
controls will be followed during the maintenance activity (Appendix D).
ii. All sediment and erosion control measures placed in wetlands and waters
shall be removed and the original grade restored within two months after
the Division of Land Resources has released the project.
All erosion control devices (i.e., silt fence and staked hay bales) will be
removed upon the re-establishment of vegetation at the site.
12. Additional site-specific conditions may be added to projects proposed
under this Certification in order to ensure compliance with all applicable
water quality and effluent standards.
As proposed, this project is in compliance with all applicable water quality
and effluent standards.
13. Measures shall be taken to prevent live or fresh concrete from coming into
contact with waters of the State until the concrete has hardened.
See General Condition 6 - Wilmington District Regional Condition 2c.
8
PCNNWPNos. 3 and 18
Colonial Pipeline Company - Swift Creek
September 1, 2oo6
WEC Project No. 02-041901
14. If an environmental document is required, this Certification is not valid
until a Finding of No Significant Impact (FONSI) or Record of Decision
(ROD) is issued by the State Clearinghouse.
Not applicable
15. If this Certification is used to access building sites, all lots owned by the
applicant must be buildable without additional fill beyond that explicitly
allowed under other General Certifications.
Not applicable
16. Deed notifications or similar mechanisms shall be placed on all lots with
remaining jurisdictional wetlands and waters or areas within 50 feet of all
streams and ponds.
Not applicable
17. When written concurrence is required, the applicant is required to use the
most recent version of the Certification of Completion form to notify
DWQ when all work included in the 401 Certification is completed.
WEC will submit a Certification of Completion to DWQ on behalf of CPC
when the project is complete.
18. Concurrence from DWQ that this Certification applies to and individual
project shall expire three years from the date of the cover letter from
DWQ or on the same day as the expiration date of the corresponding
nationwide Permit (i.e., NWP 18).
CPC anticipates completion of this project prior to October 21 2oo6,
before the expiration of NWP 18 on March 18, 2007.
General Condition - Wild and Scenic Rivers
The project site is not located in or adjacent to a Wild and Scenic River.
General Condition 8 - Tribal Rights
The project site is not located within or adjacent to an Indian reservation or nation.
General Condition c) - Water Quality Certification
The activity will be in accordance with the conditions of the DWQ General
Certifications for NWP 3 (WQC NO. 3494) and NWP 18 (WQC No. 3402).
General Condition 1o - Coastal Zone Management
The project site is not located in or adjacent to a coastal area.
9
PCNNWP Nos. 3 and i8 September 1, 2oo6
Colonial Pipeline Company - Swift Creek WEC Project No. o2-o¢19o1
General Condition 11 - Endangered Species
No impacts federally protected species are expected from this project. According to
current North Carolina Natural Heritage Program data, the federally protected
species listed to occur in Johnston County are the dwarf wedgemussel (Alasmidonta
heterodon), Tar River Spinymussel, Michaux's sumac (Rhos michauxii), bald eagle
(Haliaeetus leucocephalus), and the red cockaded woodpecker (Picoides borealis).
At the maintenance location, the pipeline ROW is regularly mowed, and does not
provide suitable habitat for Michaux's sumac, bald eagles, or red-cockaded
woodpeckers. At the location of the proposed activity, the braided channel of Swift
Creek has been severely degraded, and has a bottom substrate comprised exclusively
of silt, and does not provide suitable habitat for either protected mussel, which
require coarser bottom substrates such as sand and gravel.
General Condition 12 - Historic Properties
The proposed maintenance activity will be conducted within the existing pipeline
ROW, which has been previously disturbed; thus no archeological resource impacts
are probable. No historic structures were noted within the project area, and no
aboveground structures are proposed for construction. Therefore, the proposed
pipeline maintenance activity will have no adverse affects to cultural resources in the
project vicinity.
General Condition 1q - Notification
(a) Timing: The prospective permittee must notify the District Engineer with a PCN
as early as possible. The District Engineer must determine if the notification is
complete within 3o days of the date of receipt and can request additional
information necessary to make the PCN complete only once.
WEC believes that the contents of this package constitute a complete PCN.
(b) Contents of the Notification: The following information addresses NWP General
Condition 13(b):
1) Name, address, and telephone number of the prospective
permittee:
Mr. Jeff Richards
Colonial Pipeline Company
391 Scruggs Road
Ringgold, GA 30736
(7o6) 891-6658
2) Location of the Proposed Project:
The proposed maintenance is located east of where CPC's ROW
crosses NC Highway 42 in Johnston County, North Carolina, at
35° 36' 3o"N and 78° 32'44"W (Figure 1).
10
PCNNWP Nos. 3 and 18 September 1, 2oo6
Colonial Pipeline Company - Swift Creek WEC Project No. 02-041 901
3) Project description, purpose, effects:
See the "Background" and "Proposed Activities in Waters of the
U.S." sections of this letter.
4) Delineation of affected special aquatic sites, including wetlands:
WEC conducted the field delineation of the project site on
February 16, 20o6. Areas considered by WEC to be jurisdictional
waters are depicted on Figure 2, and consist of Guffy Branch and
an adjacent emergent wetland, which are within the existing CPC
ROW.
5-16) NWP special conditions applicable to other NWPs
Not applicable
17) Names of federal protected species affected:
Refer to General Condition 11 above.
18) National Register of Historic Places Affected:
Refer to General Condition 12 above.
(c) Form of Notification:
The Wilmington District's PCN form is attached as Appendix E.
General Condition 14 - Compliance Certification
Upon completion of the required maintenance, WEC (as CPC's authorized agent)
will sign and submit the USACE certification letter documenting compliance with
maintenance activities as they are described in this PCN submittal.
General Condition is - Use of Multiple Nationwide Permits
This project will use both NWP 3 and NWP 18. The cumulative impacts of both
parts of this project will not exceed the highest specified acreages or linear feet of
either NWP.
General Condition 16 - Water Supply Intakes
The proposed construction does not include a water supply intake.
General Condition 17 - Shellfish Beds
The proposed project is not located within or adjacent to a shellfish bed.
11
PCNNWPNos. 3 and 18 September 1, 2006
Colonial Pipeline Company - Swift Creek WECProject No. 02-041901
General Condition 18 - Suitable Material
Only material excavated from the maintenance area will be replaced within the
trench following maintenance completion. As described above the concrete
revetment mats are pre-cast and hardened before they are placed in the stream.
General Condition 19 - Mitigation
The proposed pipeline maintenance activities have been designed to avoid and
minimize impacts to jurisdictional waters to the maximum extent practicable. The
minimal amount of permanent impact associated with this project (i.e.,
approximately 25 linear feet of stream) does not exceed any of the regional
conditions requiring mitigation (Refer to General Condition 6 above). However, the
proposed stream/bank stabilization completed to maintain and protect the existing
pipelines will result in improved water quality of the stream by reducing soil/bank
erosion, which offsets the temporary disturbance.
General Condition 20 - Spawning Areas
Not applicable
General Condition 21 - Management of Water Flows
During the maintenance activity, water flows will be maintained by the use of either
a dam and pump system (Appendix B) or a flume used to convey the flow of the
stream (Appendix Q. The concrete revetment mats will be "keyed" in to the
upstream end of the maintenance area to ensure that flow of the stream is not
impeded (Appendix A).
General Condition 22 - Adverse Effects from Impoundments
Not applicable
General Condition 2a- Waterfowl Breeding Areas
Waterfowl breeding areas do not occur on the subject site.
General Condition 24 - Removal of Temporary Fills
All temporary soil piles will be removed immediately following the maintenance
activity.
General Condition 2.5 - Designated Critical Resource Waters
Not applicable
General Condition 26 - Fills within loo-year Floodplains
The project will not result in above grade fill placed within the loo-year floodplain.
12
PCNNWPNos. 3 and 18 September 1, 2006
Colonial Pipeline Company - Swift Creek WEC Project No. 02-041901
General Condition 27 - Construction Period
Not applicable
Conclusion
The pipeline maintenance activity proposed in jurisdictional waters of the U.S. and the
State of North Carolina will result in disturbance to approximately 25 linear feet of a side
channel to Swift Creek. During the maintenance activity, appropriate erosion and
sedimentation control devices will be used on the entire project site and the proposed
activity is in compliance with Nationwide Permit General Conditions and DWQ
conditions for Section 401 water quality certification and riparian buffer protection.
Based on this submittal, we respectfully request authorization for the aforementioned
maintenance project pursuant to NWP Nos. 3 and 18. Please contact the undersigned at
770-591-9990 if you have any questions regarding this request.
Sincerely,
WETLAND & ECOLOGICAL CONSULTANTS, LLC
Timothy J. Funk, C.A.E Richard W. Whiteside, C.W.B.
Senior Ecologist Managing Member
Enclosures: Figure 1- Site Location Map
Appendix A - CPC Detailed Construction Drawings
Appendix B - Typical Dam and Pump Maintenance Dig
Appendix C - Typical Open Cut Dry Flume Maintenance Dig
Appendix D - CPC's Soil Erosion and Sediment Control Plan
Appendix E- Wilmington District PCN Form
Appendix F- Site Photographs (3)
cc: Mr. Jeff Richards, Colonial Pipeline Company
DWQ (2 copies)
13
NC Hwy 42
1 i Jv
197
}a• Exposed Pipe Location -
// R l eer
00
r/ em
I
I N 300 1
U _ r=-`? (O J l `--?` , J - l J o?-. l ?} I 1.-. 4 J?.
L
31
N?X
Base Map: USGS 7.5-Minute Topographic Quadrangles of Edmonson and Garner, North Carolina 1:24,00()
Colonial Pipeline Company Figure i
Swift Creek Exposed Pipe WETLAND & ECOLOGICAL Site Location Map
CONSULTANTS, LLC
Johnston County, NC Woodstock, Georgia WEC Project No. 02-
1 1
APPENDIX A
DETAILED SITE DRAWINGS
8" PIPELINE
8" PIPELINE
16 PIPELINE
ELECTRIC FENCE EXPOSED II
STUMPS \PIPEL I NES
& DEBRIS
HIGH
BANK
0
TOE
CURRENT
FLOW
TOE
HIGH
BANK
EXISTING
/
/
X -
TREES
Cr
l II ? ?
l N350 36.481'
W78° 32.732'
BRANCH OF SWIFT CREEK
MP 91.6
• JOHNSTON COUNTY
NEAR CLAYTON, NC COLONIAL PIPELINE COMPANY
S B M A R, INC.
805 DUN N STREET HOUAA4, LA. 70380 THESE CONC£PTUV. DRAWINGS ARE PREPARED BY SUBANR TOM WEST 336/931- 6039
9851888-0001 FAX W1851-OIM mR ESTAIAAANG PURPOSES ONYY AND ARE NOT CONSTRUCAnN DRAWINGS. 4"E. SHEET SCALE. rr r DWG. 11
emal• VAmmOsu&Fwcom IHESE cONF10£NTAAL DRAWINGS ANY NOT B£ copED UNLESS APPROVED BY SUBAMR, mc. 08/2206 1 of 3 1 =30 4-2057
NOTE:
1. EXACT PLACEMENT OF MATS AND/OR ANCHORS WILL BE DETERMINED IN THE FIELD.
2. MATS ARE PLACED ON A GEOTEXTILE FABRIC.
3. STANDARD REVETMENT MAT DIMENSIONS: 8' X 20' X 4.5"
4. CONCRETE MAT IS COMPRISED OF 160 ELEMENTS MOLDED ONTO 518" U.V. //
STABILIZED FIBER ROPE, MIN. TENSILE STRENGTH 9,500 POUNDS
ELECTRIC FENCE
x x
HIGH
BANK
TOE
CURRENT
FLOW
TOE-J
HIGH
BANK
PROPOSED
8" PIPELINE
I
O'
/
/
/
CUT & PLUG
BY PIPELINE CO.
CUT & PLUG
BY PIPELINE CO.
TREES
TOTAL OF
(14) MATS
BRANCH OF SWIFT CREEK
MP 91.6
• JOHNSTON COUNTY
SUBMAR, INC. NEAR CLAYTON, NC COLONIAL PIPELINE COMPANY
805 OUNN STREET HOUMA. L4. 70360 THESE CONCEPWA DRAWINGS ARE PREPARED BY SU~ TOM WEST 3361931-6039
9851868-01001 FAX 9651831-0108 FOR ESTAA 17NO PURPOSES ONLY AND ARE NOT CONSTRUCTION DRAWINGS. DATE. SHEET SCALE:
&w..• su&7w*ubw..c0m THESE CONFIDEN?uL DRAWINGS AMY NOT BE COPIED UNLESS APPROVED BY SUBW INC. 08/22/06 2 Of 3 1 30' DWG?8-2057
16" PIPELINE
6' 1? //
6" GEOTUBE ---\
25'-0"
CUR?RENTT
FLOW
77,
TOE IN --''
(3) ELEMENTS
TO BE CUT
TO BE CUT
SECTION "B" - "B"
BRANCH OF SW/FT CREEK
MP 91.6
• JOHNSTON COUNTY
&W..• submol*u&w.com THESE CONFIDENn4L DRAWINGS AMY NOT BE COPIED UNLESS APPROVED BY SURMR, INC 08?22?06 3 of 3 8' X 20' X 4.5 "
NEAR CLA YTON, NC COLONIAL PIPELINE COMPANY
S 8 M ET R , INC.
805 DUN N STREET HOUMA, LA 70360 THESE CONCEPTIAIL DRAWINGS ARE PREPARED BY SUBMW TOM WEST 3 36/931- 6039
9851868-0001 FAX 9831851-0108 FOR ESIAN417NC PURPOSES ONLY AND ARE NOT CONSTRUCTION DRAWWNGS. Dqrr. SHEET SCALE. D'59.'-2057A
MATS
-16" PIPELINE FILL AREA
SECTION "A" - "A"
l')-,5 '
APPENDIX B
TYPICAL DAM AND PUMP MAINTENANCE DIG
PERMANENT ROW
II II
II II
III
I I III
II II
II II
II II
II II
III I I
ICI III
PUMP
I_ _I I i
SUMP W/INTAKE HOSE I I ITI
FILTER/SCREEN OR
SUBMERSIBLE PUMP I i l I I I I
WATERBODY
SPOIL CONTAINMENT BERM I I ?I
(SILT FENCE, HAY BALES I I
OR OTHER APPLICABLE
MATERIALS) oil
RETAIN A MIN. 25'
VEGETATIVE BUFFER TO
THE EXTENT POSSIBLE
ENERGY DISSIPATOR/
SCOUR PROTECTION
FLOW
DAM
MAINTAIN A MINIMUM 25' I
VEGETATIVE BUFFER TO
THE EXTENT POSSIBLE
BACKHOE
FOR STREAM EQUIPMENT
CROSSINGS, SEE NOTE 14
II '
SPOIL I I I }
II
I II
I II
?" I I III
?.:I _ _ ?I I I I
I;? J I I I
FILTER BAG
TROW ENGINEERING CONSULTANTS INC.
Iwo ?M 0.w, M 2W T91-"¢ R. one azaoe
TrOW P"E. (ago) oe5_nut
_ RerebN
,mc DATE DRAWN
NB 01-z0-2004 ALS -
SEE SHEET 2 FOR NOTES
COLONIAL PIPELINE COMPANY
ATIANTA, GEOROK
TYPICAL DAM AND PUMP
MAINTENANCE DIG
AT WATERBODY LESS THAN 15'
TROW PROD. N0. M WINO sHEEf
THES0050 4 COL-000D 1 of 2
DAM AND PUMP CROSSING
THE FOLLOWING IS A SEQUENCE OF CONSTRUCTION AND MITIGATION
MEASURES TO BE FOLLOWED AT ALL "DAM AND PUMP" TYPE CROSSINGS.
SEQUENCE OF ACTMTIES
STEP 1. IMPLEMENT THE TEMPORARY EROSION AND SEDIMENT CONTROLS.
STEP 2. INSTALL DRY STREAM CROSSING MATERIALS.
STEP 3. EXCAVATE TRENCH AND INSPECT OR REPLACE PIPE.
STEP 4. BACKFILL AND RESTORE STREAM BANKS.
STEP 5. REMOVE DAMS.
STEP B. IMPLEMENT PERMANENT EROSION AND SEDIMENTATION CONTROLS.
MAINTENANCE OF STREAMFLOW
IF THERE IS ANY FLOW IN THE WATERBODY, INSTALL
PUMPS TO MAINTAIN STREAMFLOW AROUND THE ISOLATED
SECTIONS OF CHANNEL THE PUMP IS TO HAVE 1.5
TO 2 TIMES THE PUMPING CAPACITY OF ANTICIPATED FLOW.
A SECOND STANDBY PUMP OF EQUAL CAPACITY IS TO BE
READILY AVAILABLE AT ALL TIMES. AN ENERGY DISSIPATOR
IS TO BE BUILT TO ACCEPT PUMP DISCHARGE WITHOUT
STREAMBED OR STREAMBANK EROSION. IF THE WORK
IS PROLONGED BEYOND ONE DAY THE AREA NEEDS
TO BE MONITORED OVERNIGHT.
NOTES:
I • SCHEDULE INSTREAM ACTIVITY FOR LOW FLOW PERIODS AND
FOR THE APPROPRIATE TIMING WINDOW.
2. MARK OUT AND MAINTAIN LIMITS OF AUTHORIZED WORK
AREAS WITH FENCING OR FLAGGING TAPE TO AVOID
UNNECESSARY DISTURBANCE OF VEGETATION. ENSURE
EQUIPMENT OPERATORS WORKING ON THE CROSSING HAVE
BEEN BRIEFED ABOUT THIS PLAN AND THE MEASURES
NEEDED TO PROTECT WATER QUALITY. INSTALL PRE-WORK
SEDIMENT CONTROL MEASURES AS SPECIFIED IN THE PLAN.
ALL NECESSARY EQUIPMENT AND MATERIALS TO BUILD THE
DAMS AND TO PUMP WATER MUST BE ON SITE OR READILY
AVAILABLE PRIOR TO COMMENCING IN-WATER CONSTRUCTION.
3. CONTRACTOR SHALL SUPPLY, INSTALL AND MAINTAIN SEDIMENT
CONTROL STRUCTURES AS DEPICTED AND ALONG DOWN GRADIENT
SIDES OF WORK AREAS AND STAGING AREAS SUCH THAT NO
HEAVILY SILT LADEN WATER ENTERS WATERBODY.
a. NO HEAVILY SILT LADEN WATER SHALL BE DISCHARGED DIRECTLY
OR INDIRECTLY INTO THE WATERBODY.
b. EROSION AND SEDIMENT CONTROL STRUCTURE LOCATIONS AS
DEPICTED ARE APPROXIMATE AND MAY BE ADJUSTED AS DIRECTED
BY THE COMPANY INSPECTOR TO ACTUAL SITE CONDITIONS.
c. SILT FENCE OR HAY BALE INSTALLATIONS SHALL INCLUDE
REMOVABLE SECTIONS TO FACILITATE ACCESS DURING
CONSTRUCTION. UTILIZE HAY BALE BARRIERS ONLY IN LIEU
OF A SILT FENCE WHERE FREQUENT ACCESS IS REQUIRED.
d. SEDIMENT LADEN WATER FROM TRENCH DEWATERING SHALL BE
DISCHARGED TO A WELL VEGETATED UPLAND AREA, INTO A HAY
BALE DEWATERING STRUCTURE OR GEOTEXTILE FILTER BAG.
e. SEDIMENT CONTROL STRUCTURES MUST BE IN PLACE AT ALL
TIMES ACROSS THE DISTURBED PORTIONS OF THE RIGHT-OF-WAY
EXCEPT DURING EXCAVATION/INSTALLATION OF THE CROSSING PIPE.
4. TO THE EXTENT POSSIBLE, MAINTAIN A MINIMUM 25 FEET
VEGETATIVE BUFFER STRIP BETWEEN DISTURBED AREAS AND THE
WATERBODY. INSTALL AND MAINTAIN A SILT FENCE UPSLOPE
OF THE BUFFER STRIP ON EACH SIDE OF THE WATERBODY.
THE SILT FENCE SHOULD INCORPORATE REMOVABLE "GATES" AS
REQUIRED TO ALLOW ACCESS WHILE MAINTAINING EASE OF
REPLACEMENT FOR OVERNIGHT OR DURING PERIODS OF RAINFALL
5. CONSTRUCT A TEMPORARY SUMP UPSTREAM OF THE DAM AND
LINE WITH ROCKFILL IF A NATURAL POOL DOES NOT EXIST.
INSTALL THE PUMP OR PUMP INTAKE IN THE POOL OR SUMP.
DISCHARGE WATER ONTO AN ENERGY DISSIPATOR DOWNSTREAM
OF THE WORK AREA.
g, EXCAVATED MATERIAL MUST NOT BE STOCKPILED WITHIN 10 FT.
OF THE WATERBODY. THIS MATERIAL MUST BE CONTAINED
WITHIN BERM CONTAINMENT, WITH SECONDARY SILT FENCE
PROTECTION TO PREVENT SATURATED SOIL FROM FLOWING
BACK INTO THE WATERBODY.
7. CHEMICALS, FUELS, LUBRICATING OILS SHALL NOT BE STORED
AND NOR SHALL EQUIPMENT BE REFUELED WITHIN 100 FT. OF THE
WATERBODY. PUMPS ARE TO BE REFUELED AS PER THE SPCC PLANS.
TROW ENGINEERING CONSULTANTS INC.
1]00 MEIRO"O M BLV0. B ]00 UtWMUM M_ Ian 3]
NI x. (m) ]BB t
8. IF A REPLACEMENT, PIPE MAKE-UP AREAS ARE TO BE
OCATED AT LEAST 50 FT. FROM THE WATER'S EDGE
WHERE TOPOGRAPHIC CONDITIONS PERMIT) AND SHALL
E THE MINIMUM AREA NEEDED.
9. DAMS ARE TO BE MADE OF STEEL PLATE, INFLATABLE PLASTIC
DAM, SAND BAGS, COBBLES, WELL GRADED COARSE GRAVEL FILL,
OR ROCK FILL DAMS MAY NEED KEYING INTO THE BANKS AND
STREAMBED. ENSURE THAT THE DAM AND VEHICLE CROSSING (IF
NEEDED ARE LOCATED FAR ENOUGH APART TO ALLOW FOR A WWIDE
EXCAVATION. CAP FLUMES USED UNDER VEHICLE CROSSING
DURING DRY CROSSING.
10. DEWATER AREA BETWEEN DAMS IF POSSIBLE. DEWATERING
SHOULD OCCUR IN A STABLE VEGETATIVE AREA A MINIMUM OF
50 FT. FROM ANY WATERBODY. THE PUMP DISCHARGE SHOULD
BE DISCHARGED ONTO A STABLE SPILL PAD, FILTER BAG OR
HAY BALE STRUCTURE TO PREVENT LOCALIZED EROSION.
THE DISCHARGE WATER SHOULD ALSO BE FORCED INTO SHEET
FLOW IMMEDIATELY BEYOND THE SPILL PAD BY USING HAY BALES
AND THE NATURAL TOPOGRAPHY. DISCHARGED WATER SHALL NOT
BE ALLOWED TO FLOW INTO ANY WATERBODY OR WETLAND. IF IT
IS NOT POSSIBLE TO DEWATER THE EXCAVATION DUE TO SOILS
WITH A HIGH HYDRAULIC CONDUCTIVITY, THE EXCAVATION IS TO BE
CARRIED OUT IN THE STANDING WATER. PUMP ANY DISPLACED WATER
AS DESCRIBED ABOVE TO PREVENT OVERTOPPING OF DAMS.
11. INSPECT/REPAIR PIPELINE AS NEEDED.
12. CONTRACTOR SHALL RESTORE THE STREAM BED AND BANKS TO
APPROXIMATE PRE-CONSTRUCTION CONTOURS, BUT NOT TO
EXCEED 2:1 SLOPE.
a. CONTRACTOR SHALL INSTALL PERMANENT EROSION AND
SEDIMENT CONTROL STRUCTURES AS INDICATED ON A SITE
SPECIFIC BASIS. IN THE ABSENCE OF SITE SPECIFIC INFOR-
MATION, A FLEXIBLE CHANNEL LINER SUCH AS NAG C125 OR
C350 WHICH IS CAPABLE OF WITHSTANDING ANTICIPATED FLOW
SHALL BE INSTALLED. ALTERNATIVELY, ROCK RIP-RAP SHALL
BE INSTALLED.
b. ANY MATERIALS PLACED IN THE STREAM TO FACILITATE
CONSTRUCTION SHALL BE REMOVED DURING RESTORATION.
BANKS SHALL BE STABILIZED AND TEMPORARY SEDIMENT
BARRIERS INSTALLED AS SOON AS POSSIBLE AFTER IN-STREAM
WORK BUT WITHIN 24 HOURS OF COMPLETING IN-STREAM WORK.
c. MAINTAIN A SILT FENCE OR HAY BALE BARRIER ALONG
THE WATERBODY UNTIL VEGETATION IS ESTABLISHED IN
ADJACENT DISTURBED AREAS.
13. WHEN THE STREAMBED HAS BEEN RESTORED, THE CREEK BANKS
ARE TO BE CONTOURED TO A STABLE ANGLE AND PROTECTED
WITH EROSION RESISTANT MATERIAL COMPATIBLE WITH FLOW
VELOCITY BETWEEN DAMS (E.G., EROSION CONTROL BLANKETS
CRIBBING, ROCK RIP-RAP ETC.). THE DAMS ARE TO BE ROVED
DOWNSTREAM FIRST. KEEP PUMP RUNNING UNTIL NORMAL FLOW
IS RESUMED. COMPLETE BANK TRIMMING AND EROSION PROTECTION.
IF SANDBAGS ARE USED FOR THE DAMS, PLACE AND REMOVE BY
HAND TO AVOID EQUIPMENT BREAKING BAGS.
14. TEMPORARY EQUIPMENT CROSSING CAN BE CONSTRUCTED USING EITHER
A FLUME CROSSING OR A TEMPORARY BRIDGE. FOR BRIDGE CROSSING
DETAILS, REFER TO THE TYPICAL RAILCAR BRIDGE CROSSING OR
TYPICAL MAT CROSSING DRAWINGS.
rAM DATE DRAWN
NM 01-2n-2004 ALS
COLONIAL PIPELINE COMPANY
A1LA T& GEMM
TYPICAL DAM AND PUMP
MAINTENANCE DIG
AT WATERBODY LESS THAN 15'
MW PROB. N0. ORA w SNEEf
7}ESODmm COL-0003a 2 OF 2
APPENDIX C
TYPICAL OPEN CUT DRY FLUME MAINTENANCE DIG
I III I I
I II
I jlj III
I II II
I II II
I II II
I II II
I II
I jlj III
r I I
II II
c+? I I I I
WATERBODY 1? ---- ----
'?c II II
? II
?? I I I
I
SPOIL CONTAINMENT BERM
(SILT FENCE, HAY BALES
OR OTHER APPLICABLE I I
MATERIALS) ®I /?
SILT FENCE
-- SANDBAG OR ROCK'
/ PROTECTION AS NEEDED
ji FLOW
3------ PREFABRICATED
FLUMES
OPTIONAL
------- STEEL PLATE
MAINTAIN A MINIMUM 25'
VEGETATIVE BUFFER TO
THE EXTENT POSSIBLE
FOR STREAM EQUIPMENT
CROSSINGS, SEE NOTE 13
I II
I III
( II II
II II
i i II
II II
}I PERMANENT ROW
r
TROW ENGINEERING CONSULTANTS INC.
1= MTRDPOU M BLVD, WM 200 TAl1mmm n_ BSA 32308
M%E- (BBB) 383-5441
MOM DANE
CALE DANE DRAWN APPROVED
NB 01-2D-2064 ALS -
SEE SHEET 2 FOR NOTES
COLONIAL PIPELINE COMPANY
AnMTA, GEORGIA
TYPICAL OPEN CUT DRY FLUME
MAINTENANCE DIG
AT WATERBODY FROM 15' TO 50'
TMW PROD. NO. DMMNO SHEEN
N1EM05OW2 COL-0001 1 OF 2
DRY FLUME MAINTENANCE WORK
THE FOLLOWING IS A SEQUENCE OF CONSTRUCTION AND MITIGATION
MEASURES TO BE FOLLOWED AT ALL "DRY FLUME" WORK LOCATIONS
SEQUENCE OF ACTIVITIES
STEP 1. IMPLEMENT THE TEMPORARY EROSION AND SEDIMENT CONTROLS.
STEP 2. INSTALL DRY STREAM CROSSING MATERIALS.
STEP 3. EXCAVATE TRENCH AND INSPECT/REPAIR AS NECESSARY.
STEP 4. BACKFlLL AND RESTORE STREAM BANKS.
STEP 5. REMOVE FLUME CROSSING.
STEP 6. IMPLEMENT PERMANENT EROSION AND SEDIMENTATION CONTROLS.
NOTES:
1. MARK OUT AND MAINTAIN LIMITS OF AUTHORIZED WORK
AREAS WITH FENCING OR FLAGGING TAPE TO AVOID
UNNECESSARY DISTURBANCE OF VEGETATION. ENSURE
EQUIPMENT OPERATORS WORKING ON THE CROSSING HAVE
BEEN BRIEFED ABOUT THIS PLAN AND THE MEASURES
NEEDED TO PROTECT WATER QUALITY.
2. ALL NECESSARY EQUIPMENT AND MATERIALS TO BUILD THE
FLUME MUST BE ON SITE OR READILY AVAILABLE PRIOR
TO COMMENCING IN-WATER WORK.
3. TO THE EXTENT POSSIBLE, MAINTAIN A MINIMUM 25 FT.
VEGETATIVE BUFFER STRIP BETWEEN DISTURBED AREAS
AND THE WATERBODY. INSTALL AND MAINTAIN A SILT
FENCE OR HAY BALE BARRIER UPSLOPE OF THE BUFFER
STRIP ON EACH SIDE OF THE WATERBODY.
4. CONTRACTOR SHALL SUPPLY, INSTALL AND MAINTAIN SEDIMENT
CONTROL STRUCTURES AS DEPICTED OR ALONG DOWN GRADIENT
SIDES OF WORK AREAS AND STAGING AREAS SUCH THAT NO
HEAVILY SILT LADEN WATER ENTERS THE WATERBODY.
o. NO HEAVILY SILT LADEN WATER SHALL BE DISCHARGED DIRECTLY
OR INDIRECTLY INTO THE WATERBODY.
b. EROSION AND SEDIMENT CONTROL STRUCTURE LOCATIONS AS
DEPICTED ARE APPROXIMATE AND MAY BE ADJUSTED AS DIRECTED
BY THE COMPANY INSPECTOR TO ACTUAL SITE CONDITIONS.
c. SILT FENCE OR HAY BALE INSTALLATIONS SHALL INCLUDE
REMOVABLE SECTIONS TO FACILITATE ACCESS DURING
CONSTRUCTION. UTILIZE HAY BALE BARRIERS ONLY IN LIEU
OF A SILT FENCE WHERE FREQUENT ACCESS IS REQUIRED.
d. SEDIMENT LADEN WATER FROM TRENCH DEWATERING SHALL BE
DISCHARGED TO A WELL VEGETATED UPLAND AREA ONTO A HAY
BALE DEWATERING STRUCTURE OR GEOTEXTILE FILTER BAG.
e. SEDIMENT CONTROL STRUCTURES MUST BE IN PLACE AT ALL
TIMES ACROSS THE DISTURBED PORTIONS OF THE RIGHT-OF-WAY
EXCEPT DURING EXCAVATION/REPAIR.
5. FLUME CAPACITY DURING DRY CROSSING SHALL BE SUFFICIENT
TO ACCOMMODATE 1.5 TIMES THE FLOW MEASURED AT THE TIME
OF CONSTRUCTION PROVIDED THAT THE FLUMES WILL BE IN PLACE
NOT MORE THAN 96 HOURS AND NO PRECIPITATION IS FORECAST.
FLUME CAPACITY FOR VEHICLE ACCESS SHALL BE SUFFICIENT TO
PASS THE 2 YEAR DESIGN FLOW OR THE FLOW REASONABLY EXPECTED
TO OCCUR DURING THE INSTALLATION. EXCESS FLUMES REQUIRED FOR
LONGER TERM ACCESS SHALL BE CAPPED DURING DRY CROSSING
PROCEDURES.
6. ENSURE THAT THE DAMS AND EQUIPMENT CROSSING ARE LOCATED
FAR ENOUGH APART TO ACCOMMODATE THE REQUIRED EXCAVATION.
7, PLACE IMPERVIOUS DAMS AT EACH END OF THE FLUME, UPSTREAM
FIR EN DOWNSTREAM. ACCEPTABLE ALTERNATIVES INCLUDE
GMT WITH RIP-RAP PROTECTION, SAND BAGS, STEEL PLATE AND
ROCKFlLL DURING INSTALLATION INSTALL AN IMPERVIOUS MEMBRANE, 13.
IF NECESSARY, TO LIMIT LEAKAGE, DAMS MAY NEED KEYING INTO
THE BANK AND STREAMBED.
TROW ENGINEERING CONSULTANTS INC.
1]00 ?m MD. SUfE =00 Tmimvss : IL m 32
8. EXCAVATE AS REQUIRED TO INSPECT OR REPLACE PIPE.
9. EXCAVATED MATERIAL MUST NOT BE STOCKPILED WITHIN 10 FT.
OF THE WATERBODY. THIS MATERIAL MUST BE CONTAINED
WITHIN BERM CONTAINMENT, WITH SECONDARY SILT FENCE
PROTECTION TO PREVENT SATURATED SOIL FROM FLOWING
BACK INTO THE WATERBODY.
10. DEWATERING SHOULD OCCUR IN A STABLE VEGETATED AREA A
MINIMUM OF 50 FT. FROM ANY WATERBODY. THE PUMP
DISCHARGE SHOULD BE DIRECTED ONTO A STABLE SPILL PAD,
FILTER BAG OR HAY BALE STRUCTURE TO PREVENT LOCALIZED
EROSION. THE DISCHARGE WATER SHOULD ALSO BE FORCED
INTO SHEET FLOW IMMEDIATELY BEYOND THE SPILL PAD USING
HAY BALES AND THE NATURAL TOPGRAPHY.
11. FLUMES SHOULD BE REMOVED AS SOON AS POSSIBLE, WHEN NO
LONGER REQUIRED FOR IN-STREAM ACTIVITY OR FOR ROAD ACCESS,
AS FOLLOWS:
c. REMOVE THE VEHICLE CROSSING RAMP. BANKS ARE TO BE
RESTORED TO A STABLE ANGLE AND PROTECTED WITH
EROSION RESISTANT MATERIAL COMPATIBLE WITH THE FLOW
CONDITIONS_ (E.G., EROSION CONTROL BLANKETS CRIBBING,
ROCK RIP-RAP ETC.) TO THE MAXIMUM EXTENT` POSSIBLE
BEFORE REMOVING THE DAMS.
b. REMOVE DOWNSTREAM DAM.
c. REMOVE UPSTREAM DAM.
d. REMOVE FLUME.
e. COMPLETE BANK TRIMMING AND EROSION PROTECTION. IF
SANDBAGS ARE USED FOR THE DAMS, PLACE AND REMOVE BY
HAND TO AVOID EQUIPMENT BREAKING BAGS.
CONTRACTOR SHALL RESTORE THE STREAM BED AND BANKS TO
APPROXIMATE PRE-CONSTRUCTION CONTOURS, BUT NOT TO
EXCEED 2:1 SLOPE.
0. CONTRACTOR SHALL INSTALL PERMANENT EROSION AND
SEDIMENT CONTROL STRUCTURES AS INDICATED ON A SITE
SPECIFIC BASIS. IN THE ABSENCE OF SITE SPECIFIC INFOR-
MATION, A FLEXIBLE CHANNEL LINER SUCH AS NAG C125 OR
C350 WHICH IS CAPABLE OF WITHSTANDING ANTICIPATED FLOW
SHALL BE INSTALLED. ALTERNATIVELY, ROCK RIP-RAP SHALL
BE INSTALLED.
b. ANY MATERIALS PLACED IN THE STREAM TO FACILITATE
CONSTRUCTION SHALL BE REMOVED DURING RESTORATION.
BANKS SHALL BE STABILIZED AND TEMPORARY SEDIMENT
BARRIERS INSTALLED AS SOON AS POSSIBLE AFTER IN-STREAM
WORK, BUT WITHIN 24 HOURS OF COMPLETING THE IN-STREAM
WORK.
c. MAINTAIN A SILT FENCE OR HAY BALE BARRIER ALONG
THE WATERBODY UNTIL VEGETATION IS ESTABLISHED IN
ADJACENT DISTURBED AREAS.
TEMPORARY EQUIPMENT CROSSING CAN BE CONSTRUCTED USING EITHER
A FLUME CROSSING OR A TEMPORARY BRIDGE. FOR BRIDGE CROSSING
DETAILS, REFER TO THE TYPICAL RAILCAR BRIDGE CROSSING OR
TYPICAL MAT CROSSING DRAWINGS.
12.
Nm 101-20-20041 ALS
COLONIAL PIPELINE COMPANY
AMMT& OEORON
TYPICAL OPEN CUT DRY FLUME
MAINTENANCE DIG
AT WATERBODY FROM 15' TO 50'
TROW PROD. N0. DRAWMIO SHEET
TFR5 MOM2 OOL-000ta 2 OF 2
APPENDIX D
CPC'S SOIL EROSION AND SEDIMENTATION CONTROL PLAN
Colonial Pipeline Company
Soil Erosion and Sediment Control Plan
For
Pipeline Maintenance Activities
Objective
Disturbed areas are to be restored as close as practical to their original contours and
conditions so that once vegetation is reestablished, erosion will be reduced to the same
or lower level that existed prior to disturbance.
Description
This section defines the soil erosion and sediment control measures that Colonial
Pipeline Company will implement during and after inspection and repairs of the pipeline
are complete. The objectives of this plan are to establish general guidelines for
controlling erosion and sedimentation and to specify criteria for sensitive or particularly
susceptible soil areas. The plan incorporates measures to control erosion and
sedimentation, including minimizing cover removal, limiting the time of exposure,
limiting the flow of water onto the disturbed right-of-way, and filtering or settling out
sediment from water flowing from the right-of-way.
The primary objective of the soil erosion and sediment control plan is to reduce the area
and duration of soil disturbance and reestablish permanent vegetation as soon after
construction as possible, thereby minimizing long-term erosion and sedimentation.
Some erosion is inevitable during construction; however, the plan includes measures to
reduce erosion to the minimum practical.
Colonial Pipeline Company plans to reduce soil erosion and provide sediment control
during the repair of the pipeline at the project site by incorporating the following
measures:
• Water pumped from the construction area as part of the dewatering operation
from the excavation will be filtered through silt filtration bags and discharged to
a well-vegetated area.
• All work will be confined within the existing right-of-way. Staked hay bales and
silt fence will be installed around the worksite and maintained until vegetation is
established. Proper controls will be added if necessary during construction.
• All terms and conditions within Nationwide Permit 3 will be followed.
• Erosion control measures will be installed prior to conducting any soil disturbing
activities associated with the pipeline maintenance activity.
1 of 2
• Clearing of vegetation will be kept to an absolute minimum and confined to the
existing pipeline easement area. The easement area is 50 feet in width and devoid
of large trees. The right of way is vegetated with undergrowth grasses and other
short vegetation.
• Vegetation will be reestablished within disturbed areas and along stream banks
as soon as possible upon completion of work. Disturbed areas will be seeded
with a wetland seed mixture
• All erosion and sediment control measures will be inspected every two weeks at a
minimum and after every significant rainfall event of 0.5 inch or more until
disturbed areas have been stabilized. Identified damages to control measures
must be repaired immediately.
Refuse and Waste Disposal
Colonial's representative will not allow the Contractor to discard any litter, including
paper, bottles, cans, rags, sacks, welding rod stubs, fuel, crankcase draining, coating
materials, equipment, and junk pipe in the ditch or along the right-of-way. All refuse
must be collected and disposed in accordance with company specifications. Personnel
will be instructed regarding the correct procedure for waste disposal.
Maintenance/Inspection Procedures
The following inspection and maintenance practices will be implemented to maintain
erosion and sediment controls:
1. All control measures will be inspected every two weeks at a minimum and following
any storm event of 0.5 inch or greater.
2. All control measures will be maintained in good working order. If a repair is
necessary, it will be initiated within 24 hours of the report.
3. Built-up sediment will be removed from silt fences when it has reached one-third the
height of the fence.
4. Silt fences will be inspected for depth of sediment, tears, secure attachment of the
fabric to the fence posts, and firm placement of the fence posts in the ground.
5. Temporary and permanent seeding and planting will be inspected for bare spots,
washouts, and healthy growth.
6. Colonial Pipeline Company will select individuals to be responsible for inspections,
maintenance and repair activities, and completion of the inspection and
maintenance report. Personnel selected for inspection and maintenance
responsibilities will receive training from Colonial Pipeline Company or its
representative. Personnel must be trained in all practices necessary for maintaining
the erosion and sediment controls used on-site.
2 of 2
APPENDIX E
WILMINGTON DISTRIC PCN FORM
Office Use Only: Form Version March 05
USACE Action ID No. DWQ No. 2_0 0 6 14 30
._1_1_11 IIAT/All \
(If any particular item is not applicahie to this proiecL, p,caNc cuLci v< <.YN.I?av.V V. •?
1. Processing
O.C. 0URTES M
Check all of the approval(s) requested for this project: CQF_
® Section 404 Permit ? Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
? 401 Water Quality Certification ? Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: NWP
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here:
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ?
rR e
II. Applicant Information
1. Owner/Applicant Information
Name: Mr. Jeff Richards Colonial Pipeline Company rig
Mailing Address:
391 Scruggs Road
Ringgold GA 30736
Telephone Number: (706) 891-6658 Fax Number: (706) 891-9916
E-mail Address: 'richard gcolpipe com
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Timothy J Funk / Richard W Whiteside
Company Affiliation: Wetland & Ecological Consultants
Mailing Address: 3225 S. Cherokee Lane
Bldg_ 800
Woodstock GA 30188
Telephone Number: (770) 591-9990 Fax Number: (770) 591-9993
E-mail Address: tjftmkgwet-eco com
Updated 11/1/2005
Page 5 of 12
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Swift Creek Exposed Pipe
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/
3. Property Identification Number (Tax PIN): N/A
4. Location
County: Johnston Nearest Town: Clayton
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers/names, landmarks, etc.): From Clanton take NC
Highway 42 west just past the intersection of White Oak Road there is a gravel drive way to
the left that will take you to CPC's ROW Landowner permission is required to access the
site.
Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 35° 36' 30" N 78° 32' 44" W
6. Property size (acres): N
7. Name of nearest receiving body of water: Swift Creek
8. River Basin: Neuse
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The site is an existing pipeline ROW that is periodically
mowed.
Updated 11/1/2005
Page 6 of 12
10. Describe the overall project in detail, including the type of equipment to be used: See the
description in the "Background" and "Proposed Activities in Waters of the U.S." sections of
the attached cover letter.
11. Explain the purpose of the proposed work: To repair an exposed petroleum pipeline, and to
revent future exposure.
IV. Prior Project History
if jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts:
See the "Proposed Activities in Waters of the U.S." section of the attached letter.
Updated 11/1/2005
Page 7 of 12
2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams,
,.+-1., 1-+ : +4 A- fn hnth ctriinflre. and flooding.
JG Ql0.
Wetland Impact
Site Number
(indicate on map) lG1 11J%, 1111 uvw u.+v ..,
Type of Impact v.. .-. .---------- ---- --- -
Type of Wetland
(e.g., forested, marsh,
herbaceous, bog, etc.)
Located within
100-year
Floodplain
(es/no)
Distance to
Nearest
Stream
(linear feet)
Area of
Impact
(acres)
N/A
Total Wetland Impact (acres) 0
3. List the total acreage (estimated) of all existing wetlands on the property: N/A
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
+ 1.o . .,1„ao.i 'Fn nalrrnlata ncrPnaP m111tinly length X width. then divide by 43,560.
Stream Impact
Number
indicate on ma)
Stream Name
Type of Impact Perennial or
Intermittent? Average
Stream Width
Before Impact Impact
Length
(linear feet) Area of
Impact
(acres)
Swift Creek Revetment mat Perennial 30 feet 25 0.017
Total Stream Impact (by length and acreage) 25 0.017
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
f 11 vation Bred in flooding drainage bulkheads, etc.
1 , exc
Open Water Impact a , g , f ,
Type of Waterbody
Area of
Site Number Name of Waterbody Type of Impact (lake, pond, estuary, sound, bay, Impact
(indicate on map) (if applicable)
ocean, etc.)
(acres)
N/A
Total Open Water Impact (acres) 0
Updated 11/1/2005
Page 8of12
6. List the cumlw
lative im act to all Waters of the U.S. resulting from the project.
Stream Impact (acres): 0.017
Wetland Impact (acres): 0
Open Water Impact (acres): 0
Total Impact to Waters of the U.S. (acres) 0.017
Total Stream Impact (linear feet): 25
7. Isolated Waters
Do any isolated waters exist on the property? ? Yes ® No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
8. Pond Creation
if construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.):
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.):
Current land use in the vicinity of the pond:
Size of watershed draining to pond: Expected pond surface area:
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
The proposed project is designed to minimize impacts to jurisdictional waters as much as
practicable The revetment mats will only be used to protect CPC's pipelines and to stabilize the
area that has been excavated.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
Updated 11/1/2005
Page 9 of 12
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.elir.state.nc.us/ncwetlands/strmgide.ht ml.
Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
N/A
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
(919) 715-0476 to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet):
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):_
Amount of Non-riparian wetland mitigation requested (acres
Amount of Coastal wetland mitigation requested (acres):
Updated 11/1/2005
Page 10 of 12
IX.
X.
Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ? No
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at (919) 733-5083 to review current thresholds for environmental documentation.
Yes ? No ?
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ? No ?
Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 213 .0233
(Meuse), 15A NCAC 213 .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
213 .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ? No
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
I_m pact I Required
Zone* r Multiplier
3 (2 for Catawba)
1.5
Total
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 213 .0242 or .0244, or .0260.
Updated 11/1/2005
Page 11 of 12
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level. The project will not result in impervious
surfaces BMP's will be incorporated as described under General Condition 9 of the attached
cover letter.
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
N/A
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application? Yes ? No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ? No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http•//h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description:
Upon completion of the project the pipelines should be repaired and protected from future
damage No other work will be needed
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
Due to the severity of the pipeline exposure at this location CPC needs to make the repair by
Updated 11/1/2005
Page 12 of 12
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
APPENDIX F
PHOTOGRAPHS
CPC Exposed Pipe Maintenance Photos taken February i6, 2oo6
Swift Creek WEC Project No. o2-o419ol
?k ms's r ` v .b
k.i 4r? I
?Y
? 1?-?;`rk `rte r, •"t5: w r(f•
01
,. ,• _._?
'?yy # r a. A
Ad"
I* low
Y, y
Photograph No. 2: View of the exposed segments of the out of service pipelines (Line Nos.
23 and 24 within the side channel that will be cut out and removed.
? II
CPC Exposed Pipe Maintenance
Swift Creek
Photos taken February 16, 20o6
WEC Project No. 02-041901
I Photograph No. 3: View of where the active pipeline (Line 22) is exposed in the side I
channel (covered by thin laver of silt at time of photograph).