HomeMy WebLinkAbout19860260 Ver 1_COMPLETE FILE_19860101wiir
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DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
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Comments concerning an application for State
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A. PERMIT:
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This office cannot comment on this project until after the close of the Section
401 Certification Public Comments Period.
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?roject his office has no objection to the issuance of the ) for the proposed
with the following conditions:
That the activity be conducted in such a manner as to prevent significant
increases in turbidity outside the area of construction or construction-
related discharge (increases.of 25 NTU's or less are not considered
significant).
That the instream turbidity not be increased by m..ore than 50 NTU's as a
result of the proposed activity after a ,reasonable opportunity for dilu-
tion and mixture.
That turbidity levels in shall not be increased
by more than 10 NTU's as a.-result of.the proposed activity after a reason-
able opportunity for dilution and mixture..
B. CERTIFICATION STATUS:
Certification is not required
for this project.
Certification is required for
this project. Such action to
process the certification has
been initiated. Proposed
Certification will be acted on
or after
The proposed project is. certified .
under General.Certification
A) No. 1179 issued on January 259, No. 1431 issued on October 16,
1977, for sewer line construction 1980, for boat ramp construction.
B) No. 1272 issued on November 10, E) No. 1664 issued on September 8,
1978, for bulkhead construction. 1983, for Rip-Rap Placement.
Co No. 1273 issued on November 10, F) No. 1665 issued on September 19,
1978, for discharges of liquid 1983, for incidental bridge
effluent from diked uDland disposal construct ion.
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DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
Camp C°t.n?sis?? L?6
Comments concernYng an application. for State /from
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A. PERMIT : 1.E.t CL
This office. cannot comment on this project until after the close of the Section
401 Certification Public Comments Period.
4C%r,c? Gt G t e.?tr?nd
This off ice has no objection to the issuance of. the ) for the proposed
roject with the following conditions:z
That the activity be conducted in such a manner as to prevent significant
increases in turbidity outside the area of construction or construction-
related discharge (increases.of 25 NTU's or less are not considered
significant).
------ ----- .-.--i T.hat the irstream turty not be increased by more than 50 NTU's as a
result of the proposed activity after a reasonable opportun ty-for dilu- ?
tion and mixture.
y That turbidity levels in - v shall,not be..increase-dby more than 10 NTU's as.a result of; the proposed activity after. a reason-
able opportunity for dilution and, mixture..
B. CERTIFICATION STATUS:
Certification is not regiiired
for this project.
Certification is required for
this project. Such action to:
process the certification has
been initiated. Proposed
Certification will be acted on_
or after
The proposed project is certified .
under General.Certification
A) - No.. -1179,-issued on January 25, No. 1431 issued on October 16,
1977, for sewer line construction 1980, for'Moat ramp constriuc'tion:
B) No. 1272 issued on November 10 E) No. 1664 issued on September, 8,
1978, for bulkhead. construction. 1983, for Rip-Rap Placement.
No. 1273 issued on November. 10,. F) No. 1665 issued on September 15,
1978, for discharges of liquid 1983, for incidental bridge
effluent from diked upland disposal construction.
areas..
WA ER QUALITY SECTION
DIVISION OF ENVIRONMENTAL MANAGEMENT
MEMORANDUM
DATE:
TO:
FROM:
THROUGH:
DIVISION OF ENVIRONMENTAL MANAGEMENT
July 30, 1986
Bill Mills
Operations Branch
David. H. Cotto
Wilmington Regio Office
A. Preston Howard, Jr.
Wilmington Regional Office/0
R E C E I
AUc 01
VIIATER QUALITY
OPERATIONS BRAN(';-.!
SUBJECT: Regional Office Review & Recommendations
Application for Permit for Excavation and/or Fill
Corps of Engineers - Beaufort Turning Basin
Carteret County
The applicant proposes to perform maintenance dredging of, Beaufort
Turning Basin, a 15' x 100' channel through Taylors Creek, a 12, x
100' channel to Lenoxville Point, and a 7' x 75' channel to the
Waterway connecting Pamlico Sound and Beaufort Harbor. The waters
concerned are classified SA and closed to shellfishing.
The project has been reviewed to determine impacts to water quality.
The following comment is offered: That a 401 certification is
required but should meet the conditions for the 401 general
certification for the construction of boat ramps and 401 general
certification for the discharge of liquid effluent from a dike
disposal area resulting from hydraulic dredging.
This office has no objections to the project.
DHC:kc
cc: DCM - Stephen B. Benton
WiRO
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IN REPLY REFER TO
Planning Division
DEPARTMENT OF THE ARMY
WILMINGTON DISTRICT, CORPS OF ENGINEERS
P.O. BOX 1890
WILMINGTON, NORTH CAROLINA 28402-1890 ?.
June 27, 1986
Mr. S. Thomas Rhodes, Secretary
North Carolina Department of Natural
. Resources and Community Development
Post Office Box 27687
Raleigh, North Carolina 27611-7687
Dear Mr. Rhodes:
.RECEIVED
OFFI(•E nF THE SECRETARY
JUN?Q1986\)W•
N. 1. ULPT. Of NATURAL
RESOURCES b COMMUNITY
DEVELOPMENT
Enclosed is a Consistency Determination for maintenance of
the Beaufort Turning Basin, Taylors Creek Channel and connecting
channels, Beaufort, Carteret-County, North Carolina.
If you concur with my Consistency Determination, I would
appreciate receiving your concurrence within 45 days and your
agreement to proceed with the action at that time rather than
waiting the usual 90 days.
If you have any questions regarding this matter, please call
Mrs. Trudy Wilder, Water Quality Section, Environmental Resources
Branch, at (919) 343-4581. John F. trii;?ir_•.);.?r, Jr.
Lieute,:%;:t ... __. .:;
Sincerely, Corps of En,;i :cons
Deputy District Engineer
W ne A. Hanson
v Colonel, Corps of Engineers
District Engineer
Enclosure
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CONSISTENCY DETERMINATION
BEAUFORT TURNING BASIN, TAYLORS CREEK CHANNEL
AND CONNECTING CHANNELS
CARTERET COUNTY, NORTH CAROLINA
JUNE 1986
PROJECT DESCRIPTION. The authorized project at Beaufort Harbor
includes a 12-foot x 600-foot turning basin in front of Beaufort, a
15-foot x 100-foot channel from the intersection with
Bulkhead/Gallants channels, through Taylors Creek to a point about 3
miles east of Beaufort, a 12-foot x 100-foot channel to Lenoxville
Point, and a 7-foot x 75-foot channel to the Waterway Connecting
Pamlico Sound and Beaufort Harbor.
The Beaufort Harbor Turning Basin, the 15-foot x 100-foot
channel through Taylors Creek and the 12-foot x 100-foot connecting
channel have a dredging frequency of once every fodr years. The 7-
foot x 75-foot connecting channel to the Waterway Connecting Pamlico
Sound and Beaufort Harbor has a dredging frequency of once every 10
to 15 years. Dredged material disposal will be on Town Aarsh and
Carrot Island.
- Approximately 200,000 cubic yards of coarse to medium sand
with some silt will be dredged by a hydraulic pipeline dredge during
FY 87 from the Beaufort Harbor Turning Basin and the channel through
Taylors Creek. The material will be deposited on upland diked
disposal areas located on Town Marsh and Carrot Island.
The disposal areas are part of the N.C. National Estuarine
Sanctuary, Carrot Island Complex. Use of these sites for dredged
material disposal has been coordinated with Mr. John Taggart,
Division of Coastal Management and Dr. James F. Parnell, University
of North Carolina at Wilmington.
Maintenance will be scheduled to occur during the fall and
winter months of any year to avoid adverse impacts to biological
resources.
The disposal areas will be diked to a height of 6 to 8 feet
and seeded to prevent erosion and wind blown sand.
If access for on- and off-loading heavy equipment is-.not
available, the contractor will construct ramps by placing about 30
cubic yards of fill material below the mhw line. The ramps will be
approximately...12-feet wide x 20-feet long with a 3 or 4 vertical to
1 horizontal slope. Material to construct the ramps will be ob-
tained from the disposal sites and returned to the disposal sites
upon completion of the work. General water quality certification
has been requested from the Division of Environmental Management,
N.C. Department of Natural Resources and Community Development, for
the construction of loading ramps.
Three upland diked disposal sites are proposed for use in FY
87. Material from the Beaufort Turning Basin will be deposited on
the 50 acre disposal site located on Town Marsh adjacent to the
basin. , Material from Taylors Creek Channel will be disposed of on
the 27 acre and 10 acre sites located adjacent to Taylors Creek
Channel, shown on the attached map. The sites have been previously
used for disposal of dredged material and consist of mounds of
coarse sand and remnant dikes vegetated mainly with hydrocotyl. The
sites are surrounded by wax myrtle and other low lying shrubs. The
area is inhabited by feral horses which keep it free of other
vegetation.
The 100-year flood elevation from wind tides at Taylors Creek
is about 8 feet above mean sea level (msl).
The proposed maintenance dredging and disposal of the Beaufort
Turning Basin, Taylors Creek Channel, and connecting channels are
consistent with the Coastal Management Program of the State of North
Carolina. The following information supports the consistency
determination:
Estuarine Waters: The proposed maintenance is defined as a
second priority use of this AEC and is consistent with the.manage-
ment objective. The proposed dredging and disposal in the estuarine
system will maintain navigability.
Public Trust Areas: The maintenance of navigation channels is
an acceptable use within public trust areas, and the dredging and
disposal operations will not be detrimental to the biological and
physical functions of the estuary.
Estuarine Shorelines: The proposed dredging and disposal will
not have any significant adverse effects on the AEC. The main-
tenance operations are compatible with both the dynamic nature of
estuarine shorelines and the values of the estuarine system.
Coastal Wetlands: The outer fringes of the upland diked
disposal areas are marsh. The fringes will not be affected by the
discharge of dredged material. If fill material is placed on marsh
areas during construction of on- and off-loading ramps, it will be
removed upon completion of the work. Impacts on the estuarine
system are expected to be minimal.
With respect to the pertinent general and specific use standards ?'or
the estuarine system AEC's (15 NCAC 7H .0208):
1. Maintenance of the project is water dependent. (a)(1)
2. The need for the proposed work is for navigation, which is
documented in the Final Environmental Impact Statement (FEIS),
Maintenance of The Waterway Connecting Pamlico Sound and Beaufort
Harbor, North Carolina (filed with CEQ on November 5, 1976).
(a)(2)(A)
2
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n ,
3. Although alternative methods of disposal.are available,
the proposed method of upland diked disposal will have minimal
effects on important natural resources. (a)(2)(B)
4. The proposed activities will not violate water and air
quality standards. Effluent from upland diked disposal Bites is
covered under Section 401 (PL 95-217), Water Quality Certificate no.
1273, issued on November 10, 1978, and Nationwide Permit 33 CFR
330.5(a)(16). An application for a general water quality certifi-
cate for placement of fill material in the water for the
construction of temporary loading ramps has been sent to the
Division of Environmental Management, N. C. Department of Natural
Resources and Community Development. (a)(2).(C)
5. The proposed activities will not cause any major or irre-
versible damage to documented archeological or historic resources.
The sites have been previously used for dredged material disposal.
(a)(2)(D)
6. The activities will cause a slight increase in siltation
immediately adjacent to the channel being dredged and to:effluent
plumes from the disposal areas. This impact will be temporary and
minor. (a)(2)(E)
7. The proposed activity will not create stagnant water
bodies. (a)(2)(F)
8. Life cycles of estuarine resources are not expected to be
significantly affected by the proposed activity. Public economic
interests require that channel shoals be promptly removed.
(a)(2)(G)
9. The proposed activity will promote navigation and use of
public trust and estuarine waters. (a)(2)(H)
10. 15 NCAC 7H .0208(a)(2)(I): Not applicable. (a)(2)(I)
11. The channel alignments do not alter or affect productive
shellfish beds, submerged vegetation or regularly or irregularly
flooded marsh areas. (b)(1)
12. The pipeline will be positioned a maximum distance from
spillways in order to allow adequate settling of suspended solids.
(b)(2)(A)
13. The material dredged by hydraulic pipeline dredge will be
disposed of on.Town Marsh and Carrot Island. All the disposal areas
are within the N.C. National Estuarine Sanctuary, Carrot Island
Complex. The Corps of Engineers has a permanent easement for dis-
charging dredged material in the designated disposal areas.
(b)(2)(B)
14. The discharged material will be contained on high ground
landward of regularly or irregularly flooded marshland. Adequate
3
soil stabilization measures will be used to prevent entry of dredged
material into the water or marsh. (b)(2)(C)
15.. Effluent from the upland diked dispsal areas will be con-
tained to a point waterward of emergent vegetation. (b)(2)(D)
16. The effluent from the diked disposal areas will be returned
to the channels being dredged. (b)(2)(E)
17. Water control structures will be installed at the intake
ends of the effluent pipes. (b)(2)(F)
18. The proposed dredging and disposal methods considered in
this consistency determination are consistent with standard
(b)(2)(B). (b)(2)(G)
19. The areas to be dredged are presently closed to
shellfishing. The effluent will be returned to closed shellfishing
areas. (b)(2)(H)
B. Land Use Plans: The local land classification map indicates
that the dredging is located in an area designated as "water" and
the disposal areas are designated as "conservation" (lands iden-
tified as fragile, present hazards to development, or are necessary
to maintain a balanced environment). Such areas will be maintained
basically in their natural state. Impacts on the "water" and
"conservation" areas are expected to be minimal.
C. State Guidelines:
1. For AEC's: See paragraph A.
2. For Land Use Plans: See paragraph B.
3. General Policy (15 NCAC 7M): Not applicable.
D. Other State Policies: Review of the State policies found in
Chapter 3 of the Coastal Management Program document indicates that
the proposed action is in accordance with policies on navigation,
dredging and spoil disposal, wetlands, water and air, recreational
and tourism resources, Federal consistency and national interest.
The major policies and laws of the State of North Carolina that were
specifically reviewed were the following:
1. The Coastal Area Management Act of 1974.
2. The Dredge and Fill Law (see paragraphs A-C of this
determination).
3. The N.C. Sedimentation Pollution Control Act.
With respect to control of sedimentation and erosion, the
district will submit plans and specifications containing erosion
4
control requirements to the Land Quality Regional Engineer for
review and approval 30 days prior to beginning construction.
4. Water Quality Regulations.
The discharge of effluent from upland diked disposal areas is
covered under Section 401 (PL 95-217), Water Quality Certificate no.
1273 issued on November 10, 1978, and Nationwide Permit 33 CFR
330.5(a)(16). A Section 401 (PL 95-217) General Water Quality
Certificate for temporary placement of fill material for construc-
tion of loading ramps has been requested from the Division of
Environmental Management, N.C. Department of Natural Resources and
Community Development.
E. Conclusion: Based on the above information, I have determined
that the proposed maintenance of the Beaufort Turning Basin, Taylors
Creek Channel and connecting channels is consistent with the Coastal
Management Program of the State of North Carolina.
ATTACHMENT W ne A. Hanson
Colonel, Corps of Engineers
District Engineer
DATE:
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xxxx - L;w,;bi ??' DPS?'?ff' it O C E A N
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/ Mileages in Gallants and Bulkhead Channels ore measured from the
I old U. S. TO highway bridge.
I
f Mileage in the channel in front of the town of Beaufort and Taylors
Creek is measured eastward from Intersection with Bulkhead Channel.
BEA•UFORT HARBOR,
NORTH CAROLINA
SCALE Of FEET
(000 O Eooo 4000 6000
CORPS OF ENGINEERS WILMINGTON, N.C.
MAP REVISED SEPTEMBER 1983