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Duval County. Center Point Terminal J&W, LLC, Clayton, Missouri.
Basic: The basic project purpose is access to navigable waters.
Overall: The overall project purpose is facilitated access to navigable waters through the reduction of maintenance dredge operations associated with the installation of underwater scour fans at the Center Point Terminal J&W, LLC, facility.
TO WHOM IT MAY CONCERN: The Jacksonville District of the U.S. Army Corps of Engineers (Corps) has received an application for a Department of the Army permit pursuant to Section 404 of the Clean Water Act (33 U.S.C. §1344) and Section 10 of the Rivers and Harbors Act of 1899 (33 U.S.C. §403) as described below:
APPLICANT: Center Point Terminal J&W, LLC
8235 Forsyth Boulevard, Suite 400
Clayton, Missouri 63105
WATERWAY AND LOCATION: The project would affect navigable waters of the United States associated with the St. Johns River. The project site is located at 3117 Talleyrand Avenue (the Chevron berth), in Sections 5 and 47, Township 5 South, Range 27 East, Jacksonville, Duval County, Florida.
APPROXIMATE CENTRAL COORDINATES: Latitude 30.358179°
Longitude -81.619401°
PROJECT PURPOSE:
Basic: The basic project purpose is access to navigable waters.
Overall: The overall project purpose is facilitated access to navigable waters through the reduction of maintenance dredge operations associated with the installation of underwater scour fans at the Center Point Terminal J&W, LLC, facility.
EXISTING CONDITIONS:
The project site encompasses routinely dredged, non-vegetated open waters of the St. Johns River contiguous to a berthing area that includes a central loading dock and two breasting dolphins. The pile-supported breasting dolphins have elastomer fendering systems and connect to the shore by narrow catwalks. The larger, pile-supported loading dock includes a structural steel tower and a small crane. The berthing area is approximately 650 feet long and 130 feet wide. The depth at the berthing area is approximately -38 feet mean low water. The St. Johns River ship channel forms the easterly boundary to the berthing area. The channel at this location is 550 feet wide and roughly parallels the bulkhead at the project site. The project depth of the channel at this location is -38 feet mean low water.
Sedimentation in the berthing area includes clays and fine silts, originating from tributaries to the St. Johns River. These sediments flocculate upon reaching the more saline waters of the lower St. Johns River, settling to the bottom and forming a mobile layer of fluid mud. Fluid mud is dragged along the bottom by water currents coming to rest in areas of reduced velocity, such as dredged berthing areas. Once at rest, fluid mud undergoes rapid consolidation, with a sharp increase in yield strength and erosion resistance. Within a few days, the recently arrived fluid mud becomes part of the permanent sediment bottom. Periodic soundings indicate annual shoaling rates of about 6 feet per year at the site. Shoaling is heaviest near the face of the dock and near its upstream end. The latter is an area of “dead water” caused by the abrupt transition of the shoreline (bulkhead positions) from the upstream Jacksonville Port Authority dock and the Chevron berth. The normal dredging cycle for the Chevron berth is once per year, usually in the autumn. A typical dredging event removes 10,000 cubic yards of sediment from the berth using a clamshell dredge. The applicant has a valid Department of the Army permit to conduct maintenance dredge operations through August of 2022.
PROPOSED WORK: The applicant seeks authorization to install and operate four underwater silt suspension systems (turbo-scour jetting systems) in navigable waters of the United States. Each system includes a pile-supported unit that is raised out of the water when not in use; and, is lowered into the water during operation. Each of the units includes a 42-inch fan component that would operate at approximately 10 cubic feet per second for 40 minutes during each flood and ebb tidal flow (i.e., four operational periods each day, for a total of 160 minutes per day). The operation of the combined systems would decrease the accumulation of sediments; and, reduce the need for periodic mechanical dredge maintenance operations at the site.
AVOIDANCE AND MINIMIZATION INFORMATION – The project is associated with maintaining access to navigable waters; and, as such, work within the aquatic resource is unavoidable. The applicant indicates that the four systems are the minimum necessary to effectively assist in the maintenance of access; and, reduce the frequency of cyclical mechanical dredge operations.
COMPENSATORY MITIGATION – The applicant has expressed the opinion that the work would not result in the loss of aquatic habitat or functions. In consideration of that information, the applicant did not propose compensatory mitigation.
CULTURAL RESOURCES: The Corps has determined the permit area has been extensively modified by previous work (maintenance dredge operations) and there is little likelihood a historic property may be affected.
ENDANGERED SPECIES:
Red Cockaded Woodpecker (Picoides borealis) – The project site is within a consultation area identified by the Corps and the U.S. Fish and Wildlife Service (FWS) for Red Cockaded Woodpecker. However, the project would not affect habitat associated with this species; and, as such, the Corps determined that the project would have no effect on this species.
Wood Stork (Mycteria americana) – The project site is within the Core Foraging Area of three Wood Stork nesting colonies. However, the project site does not encompass suitable foraging habitat. In consideration of this information, the Corps utilized The Corps of Engineers, Jacksonville District, U.S. Fish and Wildlife Service, Jacksonville Ecological Services Field Office and State of Florida Effect Determination Key for the Wood Stork, September 2008, to determine potential effects upon this species. Use of this key resulted in the sequence A-B-no effect. The FWS previously indicated that they concur with determinations of no effect based on the key for Wood Storks; and, that no additional consultation is necessary.
Manatee (Trichechus manatus) – The Corps reviewed the project utilizing The Corps of Engineers, Jacksonville District, and the State of Florida Effect Determination Key for the Manatee in Florida, April 2013. Use of this key resulted in the sequence A-B-C-G-N-O-P- may affect, but is not likely to adversely affect. The Corps partially based this determination on the implementation of the Standard Manatee Conditions for In-Water Work, 2011. The FWS previously indicated that they concur with determinations of may affect, not likely to adversely affect based on the key for manatee; and, that no additional consultation is necessary.
Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) and/or shortnose sturgeon (Acipenser brevirostrum) – Either of these species might forage within waters of the St. Johns River at or near the project site; however, the project site does not encompass critical habitat for sturgeon (either species). Information from the manufacturer of the units indicates that the intake velocity of the units is relatively slow; and, as such, larger fish are generally able to avoid ingestion. Smaller fish are more likely to be entrained, but are also more likely to pass through the impeller section unharmed. Fish entrainment studies conducted at the CITGO, Savannah, Georgia, the Georgia Ports Authority, and the CITGO, Linden, New Jersey installations determined that the units had no significant adverse impact on finfish populations as a result of entrainment. The conclusion was that the systems (units) cause a relatively small change in the affected environment and insignificant changes in ecological functions in comparison to the existing impacts on the rivers studied (e.g., dredge operations, shipping, runoff, and natural variability). In consideration of this information and the limited likelihood of individuals being present during the operation of the proposed units, the Corps determined that the project may affect, but is not likely to adversely affect sturgeon. The Corps will coordinate our determination with the National Marine Fisheries Service (NMFS) through separate correspondence.
The Corps executed a Resources At Risk (RAR) report. The RAR did not indicate that the site is utilized by, or contains habitat critical to, any other federally listed threatened or endangered species. The Corps also reviewed geospatial data and other available information. The Corps has not received or discovered any information that the project site is utilized by, or contains habitat critical to, any other federally listed threatened or endangered species.
ESSENTIAL FISH HABITAT (EFH): This notice initiates consultation with the NMFS on EFH as required by the Magnuson-Stevens Fishery Conservation and Management Act 1996.
The project site is within an area identified as a “coastal inlet”; and, the NMFS has indicated that coastal inlet areas support EFH for shrimp (Farfantepenaeus spp., Penaeus sp., and/or Litopenaeus spp.). Areas that meet the criteria for essential fish habitat-habitat areas of particular concern (EFH-HAPCs) for penaeid shrimp include all coastal inlets, all state-designated nursery habitats of particular importance to shrimp, and state-identified overwintering areas. The NMFS has identified waters of the St. Johns River as EFH-HAPC for shrimp.
The NMFS also has indicated that coastal inlet areas support snapper (Lutjanus spp.) and grouper (Mycteroperca spp. and/or Epinephelus spp.). Areas that meet the criteria for EFH-HAPCs for species in the snapper-grouper management unit include medium to high profile offshore hard bottoms where spawning normally occurs; localities of known or likely periodic spawning aggregations; nearshore hard bottom areas; mangrove habitat; seagrass habitat; oyster/shell habitat; all coastal inlets; all state-designated nursery habitats of particular importance to snapper grouper; and Council-designated Artificial Reef Special Management Zones. The NMFS has identified waters of the St. Johns River as EFH-HAPC for snapper/grouper.
The installation of the proposed silt suspension systems would temporarily disturb open-water, non-vegetated river bottom. Shrimp and/or Snapper/Grouper within the area would vacate the area (mobility) due to the presence of workers/work. However, these species could/would repopulate/utilize the work area immediately upon the cessation of work activities. The operation of the silt suspension systems would incorporate the cyclical use of near-bottom water jets to boost the speed of passing tidal currents to prevent the deposition of fine-grained sediments in the berthing area. Jetting action is strong enough to prevent shoaling but not enough to cause erosion of the river bottom, so no additional sediment or turbidity is introduced to the water column. In consideration of this information, the Corps determined that any affect upon these species would not only be temporary, but negligible.
In consideration of the analysis above, our initial determination is that the proposed action would not have a substantial adverse impact on EFH or federally managed fisheries in the St. Johns River. Our final determination relative to project impacts and the need for mitigation measures is subject to review by and coordination with the NMFS.
NOTE: This public notice is being issued based on information furnished by the applicant. This information has not been verified or evaluated to ensure compliance with laws and regulation governing the regulatory program. The jurisdictional line has been verified by Corps personnel.
AUTHORIZATION FROM OTHER AGENCIES: Water Quality Certification may be required from the Florida Department of Environmental Protection and/or one of the state Water Management Districts.
COMMENTS regarding the potential authorization of the work proposed should be submitted in writing to the attention of the District Engineer through the Jacksonville Permits Section, Post Office Box 4970, Jacksonville, Florida 32232 within 21 days from the date of this notice.
The decision whether to issue or deny this permit application will be based on the information received from this public notice and the evaluation of the probable impact to the associated wetlands. This is based on an analysis of the applicant's avoidance and minimization efforts for the project, as well as the compensatory mitigation proposed.
QUESTIONS concerning this application should be directed to the project manager, Mark Evans, in writing at the Jacksonville Permits Section, Post Office Box 4970, Jacksonville, Florida 32232; by electronic mail at mark.r.evans@usace.army.mil; by facsimile transmission at (904)232-1940; or, by telephone at (904)232-2028.
IMPACT ON NATURAL RESOURCES: Coordination with U.S. Fish and Wildlife Service, Environmental Protection Agency (EPA), the National Marine Fisheries Services, and other Federal, State, and local agencies, environmental groups, and concerned citizens generally yields pertinent environmental information that is instrumental in determining the impact the proposed action will have on the natural resources of the area.
EVALUATION: The decision whether to issue a permit will be based on an evaluation of the probable impact including cumulative impacts of the proposed activity on the public interest. That decision will reflect the national concern for both protection and utilization of important resources. The benefits, which reasonably may be expected to accrue from the proposal, must be balanced against its reasonably foreseeable detriments. All factors which may be relevant to the proposal will be considered including cumulative impacts thereof; among these are conservation, economics, esthetics, general environmental concerns, wetlands, historical properties, fish and wildlife values, flood hazards, floodplain values, land use, navigation, shoreline erosion and accretion, recreation, water supply and conservation, water quality, energy needs, safety, food, and fiber production, mineral needs, considerations of property ownership, and in general, the needs and welfare of the people. Evaluation of the impact of the activity on the public interest will also include application of the guidelines promulgated by the Administrator, EPA, under authority of Section 404(b) of the Clean Water Act or the criteria established under authority of Section 102(a) of the Marine Protection Research and Sanctuaries Act of 1972. A permit will be granted unless its issuance is found to be contrary to the public interest.
The US Army Corps of Engineers (Corps) is soliciting comments from the public; Federal, State, and local agencies and officials; Indian Tribes; and other Interested parties in order to consider and evaluate the impacts of this proposed activity. Any comments received will be considered by the Corps to determine whether to issue, modify, condition, or deny a permit for this proposal. To make this determination, comments are used to assess impacts to endangered species, historic properties, water quality, general environmental effects, and the other public interest factors listed above. Comments are also used to determine the need for a public hearing and to determine the overall public interest of the proposed activity.
COASTAL ZONE MANAGEMENT CONSISTENCY: In Florida, the State approval constitutes compliance with the approved Coastal Zone Management Plan. In Puerto Rico, a Coastal Zone Management Consistency Concurrence is required from the Puerto Rico Planning Board. In the Virgin Islands, the Department of Planning and Natural Resources permit constitutes compliance with the Coastal Zone Management Plan.
REQUEST FOR PUBLIC HEARING: Any person may request a public hearing. The request must be submitted in writing to the District Engineer within the designated comment period of the notice and must state the specific reasons for requesting the public hearing.
DEPARTMENT OF THE ARMY
JACKSONVILLE DISTRICT CORPS OF ENGINEERS
POST OFFICE BOX 4970
JACKSONVILLE, FLORIDA 32232
REPLY TO
ATTENTION OF
Regulatory Division
North Permits Branch
Jacksonville Permits Section
18 October 2017
PUBLIC NOTICE
Permit Application Number SAJ-1990-00501(SP-MRE)
TO WHOM IT MAY CONCERN: The Jacksonville District of the U.S. Army Corps of Engineers
(Corps) has received an application for a Department of the Army permit pursuant to Section
404 of the Clean Water Act (33 U.S.C. §1344) and Section 10 of the Rivers and Harbors Act of
1899 (33 U.S.C. §403) as described below:
APPLICANT: Center Point Terminal J&W, LLC
8235 Forsyth Boulevard, Suite 400
Clayton, Missouri 63105
WATERWAY AND LOCATION: The project would affect navigable waters of the United States
associated with the St. Johns River. The project site is located at 3117 Talleyrand Avenue (the
Chevron berth), in Sections 5 and 47, Township 5 South, Range 27 East, Jacksonville, Duval
County, Florida.
APPROXIMATE CENTRAL COORDINATES:
Latitude 30.358179°
Longitude -81.619401°
PROJECT PURPOSE:
Basic: The basic project purpose is access to navigable waters.
Overall: The overall project purpose is facilitated access to navigable waters through the
reduction of maintenance dredge operations associated with the installation of underwater scour
fans at the Center Point Terminal J&W, LLC, facility.
EXISTING CONDITIONS:
The project site encompasses routinely dredged, non-vegetated open waters of the St. Johns
River contiguous to a berthing area that includes a central loading dock and two breasting
dolphins. The pile-supported breasting dolphins have elastomer fendering systems and connect
to the shore by narrow catwalks. The larger, pile-supported loading dock includes a structural
steel tower and a small crane. The berthing area is approximately 650 feet long and 130 feet
wide. The depth at the berthing area is approximately -38 feet mean low water. The St. Johns
River ship channel forms the easterly boundary to the berthing area. The channel at this
location is 550 feet wide and roughly parallels the bulkhead at the project site. The project
depth of the channel at this location is -38 feet mean low water.
Sedimentation in the berthing area includes clays and fine silts, originating from tributaries to the
St. Johns River. These sediments flocculate upon reaching the more saline waters of the lower
St. Johns River, settling to the bottom and forming a mobile layer of fluid mud. Fluid mud is
dragged along the bottom by water currents coming to rest in areas of reduced velocity, such as
dredged berthing areas. Once at rest, fluid mud undergoes rapid consolidation, with a sharp
increase in yield strength and erosion resistance. Within a few days, the recently arrived fluid
mud becomes part of the permanent sediment bottom. Periodic soundings indicate annual
shoaling rates of about 6 feet per year at the site. Shoaling is heaviest near the face of the dock
and near its upstream end. The latter is an area of "dead water" caused by the abrupt transition
of the shoreline (bulkhead positions) from the upstream Jacksonville Port Authority dock and the
Chevron berth. The normal dredging cycle for the Chevron berth is once per year, usually in the
autumn. A typical dredging event removes 10,000 cubic yards of sediment from the berth using
a clamshell dredge. The applicant has a valid Department of the Army permit to conduct
maintenance dredge operations through August of 2022.
PROPOSED WORK: The applicant seeks authorization to install and operate four underwater
silt suspension systems (turbo-scour jetting systems) in navigable waters of the United States.
Each system includes a pile-supported unit that is raised out of the water when not in use; and,
is lowered into the water during operation. Each of the units includes a 42-inch fan component
that would operate at approximately 10 cubic feet per second for 40 minutes during each flood
and ebb tidal flow (i.e., four operational periods each day, for a total of 160 minutes per day).
The operation of the combined systems would decrease the accumulation of sediments; and,
reduce the need for periodic mechanical dredge maintenance operations at the site.
AVOIDANCE AND MINIMIZATION INFORMATION The project is associated with maintaining
access to navigable waters; and, as such, work within the aquatic resource is unavoidable. The
applicant indicates that the four systems are the minimum necessary to effectively assist in the
maintenance of access; and, reduce the frequency of cyclical mechanical dredge operations.
COMPENSATORY MITIGATION The applicant has expressed the opinion that the work
would not result in the loss of aquatic habitat or functions. In consideration of that information,
the applicant did not propose compensatory mitigation.
CULTURAL RESOURCES: The Corps has determined the permit area has been extensively
modified by previous work (maintenance dredge operations) and there is little likelihood a
historic property may be affected.
ENDANGERED SPECIES:
Red Cockaded Woodpecker (Picoides borealis) The project site is within a consultation area
identified by the Corps and the U.S. Fish and Wildlife Service (FWS) for Red Cockaded
Woodpecker. However, the project would not affect habitat associated with this species; and,
as such, the Corps determined that the project would have no effect on this species.
Wood Stork (Mycteria americana) The project site is within the Core Foraging Area of three
Wood Stork nesting colonies. However, the project site does not encompass suitable foraging
habitat. In consideration of this information, the Corps utilized The Corps of Engineers,
Jacksonville District, U.S. Fish and Wildlife Service, Jacksonville Ecological Services Field
Office and State of Florida Effect Determination Key for the Wood Stork, September 2008, to
determine potential effects upon this species. Use of this key resulted in the sequence A-B-no
effect. The FWS previously indicated that they concur with determinations of no effect based on
the key for Wood Storks; and, that no additional consultation is necessary.
2
Manatee (Trichechus manatus) The Corps reviewed the project utilizing The Corps of
Engineers, Jacksonville District, and the State of Florida Effect Determination Key for the
Manatee in Florida, April 2013. Use of this key resulted in the sequence A-B-C-G-N-O-P- may
affect, but is not likely to adversely affect. The Corps partially based this determination on the
implementation of the Standard Manatee Conditions for In-Water Work, 2011. The FWS
previously indicated that they concur with determinations of may affect, not likely to adversely
affect based on the key for manatee; and, that no additional consultation is necessary.
Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) and/or shortnose sturgeon (Acipenser
brevirostrum) Either of these species might forage within waters of the St. Johns River at or
near the project site; however, the project site does not encompass critical habitat for sturgeon
(either species). Information from the manufacturer of the units indicates that the intake velocity
of the units is relatively slow; and, as such, larger fish are generally able to avoid ingestion.
Smaller fish are more likely to be entrained, but are also more likely to pass through the impeller
section unharmed. Fish entrainment studies conducted at the CITGO, Savannah, Georgia, the
Georgia Ports Authority, and the CITGO, Linden, New Jersey installations determined that the
units had no significant adverse impact on finfish populations as a result of entrainment. The
conclusion was that the systems (units) cause a relatively small change in the affected
environment and insignificant changes in ecological functions in comparison to the existing
impacts on the rivers studied (e.g., dredge operations, shipping, runoff, and natural variability).
In consideration of this information and the limited likelihood of individuals being present during
the operation of the proposed units, the Corps determined that the project may affect, but is not
likely to adversely affect sturgeon. The Corps will coordinate our determination with the
National Marine Fisheries Service (NMFS) through separate correspondence.
The Corps executed a Resources At Risk (RAR) report. The RAR did not indicate that the site
is utilized by, or contains habitat critical to, any other federally listed threatened or endangered
species. The Corps also reviewed geospatial data and other available information. The Corps
has not received or discovered any information that the project site is utilized by, or contains
habitat critical to, any other federally listed threatened or endangered species.
ESSENTIAL FISH HABITAT (EFH): This notice initiates consultation with the NMFS on EFH as
required by the Magnuson-Stevens Fishery Conservation and Management Act 1996.
The project site is within an area identified as a "coastal inlet"; and, the NMFS has indicated that
coastal inlet areas support EFH for shrimp (Farfantepenaeus spp., Penaeus sp., and/or
Litopenaeus spp.). Areas that meet the criteria for essential fish habitat-habitat areas of
particular concern (EFH-HAPCs) for penaeid shrimp include all coastal inlets, all statedesignated nursery habitats of particular importance to shrimp, and state-identified
overwintering areas. The NMFS has identified waters of the St. Johns River as EFH-HAPC for
shrimp.
The NMFS also has indicated that coastal inlet areas support snapper (Lutjanus spp.) and
grouper (Mycteroperca spp. and/or Epinephelus spp.). Areas that meet the criteria for EFHHAPCs for species in the snapper-grouper management unit include medium to high profile
offshore hard bottoms where spawning normally occurs; localities of known or likely periodic
spawning aggregations; nearshore hard bottom areas; mangrove habitat; seagrass habitat;
oyster/shell habitat; all coastal inlets; all state-designated nursery habitats of particular
importance to snapper grouper; and Council-designated Artificial Reef Special Management
Zones. The NMFS has identified waters of the St. Johns River as EFH-HAPC for
snapper/grouper.
3
The installation of the proposed silt suspension systems would temporarily disturb open-water,
non-vegetated river bottom. Shrimp and/or Snapper/Grouper within the area would vacate the
area (mobility) due to the presence of workers/work. However, these species could/would
repopulate/utilize the work area immediately upon the cessation of work activities. The
operation of the silt suspension systems would incorporate the cyclical use of near-bottom water
jets to boost the speed of passing tidal currents to prevent the deposition of fine-grained
sediments in the berthing area. Jetting action is strong enough to prevent shoaling but not
enough to cause erosion of the river bottom, so no additional sediment or turbidity is introduced
to the water column. In consideration of this information, the Corps determined that any affect
upon these species would not only be temporary, but negligible.
In consideration of the analysis above, our initial determination is that the proposed action would
not have a substantial adverse impact on EFH or federally managed fisheries in the St. Johns
River. Our final determination relative to project impacts and the need for mitigation measures
is subject to review by and coordination with the NMFS.
NOTE: This public notice is being issued based on information furnished by the applicant. This
information has not been verified or evaluated to ensure compliance with laws and regulation
governing the regulatory program. The jurisdictional line has been verified by Corps personnel.
AUTHORIZATION FROM OTHER AGENCIES: Water Quality Certification may be required
from the Florida Department of Environmental Protection and/or one of the state Water
Management Districts.
COMMENTS regarding the potential authorization of the work proposed should be submitted in
writing to the attention of the District Engineer through the Jacksonville Permits Section, Post
Office Box 4970, Jacksonville, Florida 32232 within 21 days from the date of this notice.
The decision whether to issue or deny this permit application will be based on the information
received from this public notice and the evaluation of the probable impact to the associated
wetlands. This is based on an analysis of the applicant's avoidance and minimization efforts for
the project, as well as the compensatory mitigation proposed.
QUESTIONS concerning this application should be directed to the project manager, Mark
Evans, in writing at the Jacksonville Permits Section, Post Office Box 4970, Jacksonville, Florida
32232; by electronic mail at mark.r.evans@usace.army.mil; by facsimile transmission at
(904)232-1940; or, by telephone at (904)232-2028.
IMPACT ON NATURAL RESOURCES: Coordination with U.S. Fish and Wildlife Service,
Environmental Protection Agency (EPA), the National Marine Fisheries Services, and other
Federal, State, and local agencies, environmental groups, and concerned citizens generally
yields pertinent environmental information that is instrumental in determining the impact the
proposed action will have on the natural resources of the area.
EVALUATION: The decision whether to issue a permit will be based on an evaluation of the
probable impact including cumulative impacts of the proposed activity on the public interest.
That decision will reflect the national concern for both protection and utilization of important
resources. The benefits, which reasonably may be expected to accrue from the proposal, must
be balanced against its reasonably foreseeable detriments. All factors which may be relevant to
the proposal will be considered including cumulative impacts thereof; among these are
4
conservation, economics, esthetics, general environmental concerns, wetlands, historical
properties, fish and wildlife values, flood hazards, floodplain values, land use, navigation,
shoreline erosion and accretion, recreation, water supply and conservation, water quality,
energy needs, safety, food, and fiber production, mineral needs, considerations of property
ownership, and in general, the needs and welfare of the people. Evaluation of the impact of the
activity on the public interest will also include application of the guidelines promulgated by the
Administrator, EPA, under authority of Section 404(b) of the Clean Water Act or the criteria
established under authority of Section 102(a) of the Marine Protection Research and
Sanctuaries Act of 1972. A permit will be granted unless its issuance is found to be contrary to
the public interest.
The US Army Corps of Engineers (Corps) is soliciting comments from the public; Federal, State,
and local agencies and officials; Indian Tribes; and other Interested parties in order to consider
and evaluate the impacts of this proposed activity. Any comments received will be considered
by the Corps to determine whether to issue, modify, condition, or deny a permit for this
proposal. To make this determination, comments are used to assess impacts to endangered
species, historic properties, water quality, general environmental effects, and the other public
interest factors listed above. Comments are also used to determine the need for a public
hearing and to determine the overall public interest of the proposed activity.
COASTAL ZONE MANAGEMENT CONSISTENCY: In Florida, the State approval constitutes
compliance with the approved Coastal Zone Management Plan. In Puerto Rico, a Coastal Zone
Management Consistency Concurrence is required from the Puerto Rico Planning Board. In the
Virgin Islands, the Department of Planning and Natural Resources permit constitutes
compliance with the Coastal Zone Management Plan.
REQUEST FOR PUBLIC HEARING: Any person may request a public hearing. The request
must be submitted in writing to the District Engineer within the designated comment period of
the notice and must state the specific reasons for requesting the public hearing.
5
E
Project Boundary
0
1,000
2,000
Feet
Source(s): USGS Topographic Survey. Jacksonville
& Arlington, FL. Quadrangles (1992). World
Topographic Map
Disclaimer: The information depicted on this figure is for
conceptual purposes only, serves to aid a licensed engineer
or geologist in rendering professional services, and is subject
to review and approval by appropriate regulatory agencies.
ENVIRONMENTAL
SERVICES, INC.
7220 Financial Way, Suite 100
Jacksonville, Florida 32256
(904) 470-2200
(904) 470-2112 Fax
www.environmentalservicesinc.com
Path: P:\GIS\_Projects\EJ\2013\211\01\fig\ACOE\Location.mxd Date: 5/10/2017 9:10:54 AM
Sources: Esri, HERE, DeLorme, Intermap, increment P Corp., GEBCO,
USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey,
Esri Japan, METI, Esri China (Hong Kong), swisstopo, MapmyIndia, ©
OpenStreetMap contributors, and the GIS User Community
Project Location
Center Point Terminal
Duval County, Florida
Project:
EJ13211.01
Date:
May 2017
Drawn By:
AA
Checked By:
JRN
Approved By:
TAH
Figure:
1
E
Talleyrand Ave
Project Boundary
0
150
300
Feet
Source(s): ESRI World Imagery Basemap
Disclaimer: The information depicted on this figure is for
conceptual purposes only, serves to aid a licensed engineer or
geologist in rendering professional services, and is subject to
review and approval by appropriate regulatory agencies.
Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS,
AeroGRID, IGN, and the GIS User Community
ENVIRONMENTAL
SERVICES, INC.
7220 Financial Way, Suite 100
Jacksonville, Florida 32256
(904) 470-2200
(904) 470-2112 Fax
www.environmentalservicesinc.com
Path: P:\GIS\_Projects\EJ\2013\211\01\fig\ACOE\ESC.mxd Date: 5/10/2017 9:13:34 AM
Existing Site Conditions
Center Point Terminal
Duval County, Florida
Project:
EJ13211.01
Date:
May. 2017
Drawn By:
AA
JRN
Checked By:
Approved By:
TAH
Figure:
2
Table 1. Area of Scour Fans and Boardwalks Over Water
Scour Unit 1
450 sf.
0.010 ac.
Scour Unit 2
438 sf.
0.010 ac.
Scour Unit 3
303 sf
0.007 ac.
Scour Unit 4
762 sf.
0.017 ac.
Total
1,953 sf.
0.044 ac.
SEDCON TURBO UNIT
(4 REQUIRED)
CONTROL
HOUSE~
BULKHEAD LINE
EXISTING STRUCTIRES
~'\r,GE OF CHANNEL
1Jo'
~~
NEW PLAlfORM #3
NEW PLAlfORM ANO CATWALK
(4 REQUIRED) (SEE SHEET XX)
I
NEW PLAlfORM #4
~112~
I
GRAPHIC SCALE
I i I
0
50
100
NOT FOR CONSTRUCTION
7
Profcsslon11l Suncyors & Mappers
R. E. Holland
& Associates, Inc.
gno BAnlEADOWS ROM>, SUllE 105
JACKSCNYILLE. FLORIDA J22!511
PHI. 1904)280-1300
FAX (Db4)648-:sz72
FlORIOA CERllFICAlE OF AUlHallZA1!0N NO. LB 1755
TURBO SCOUR UNIT & GUIDEPILE
CENTER POINT TERMINAL
DUVAL COUNTY, FLORIDA
JET 42"GI (SEE DETAILS)
1" EXPANDED METAL GRATE
DECK (GALVANIZED STEEL)
5'
PLATFORM 16.0'XlS.O'
10" Wf FRAME (TYP.)
(GALVANIZED STEEL)
6 ANGLE (TYP.)
(GALVANIZED STEEL)
12" HP (TYP.)
(GALVANIZED STEEL OR
EPOXY COATED)
11
in
1
GRAPHIC SCALE
I I I
0
5
10
l" EXPANDED METAL GRATE
STAIRS ~lH HANDRAIL
(GALVANIZED STEEL)
NOTE: HANDRAIL AND
KICK PLATE NOT
SHOWN IN PLAN VIEW.
HANDRAIL ON AU.
SIDES EXCAPT AT JET.
JET WALKWAY AND PLATFORM PLAN #1
NOT FOR CONSTRUCTION
Prorcsslonnl Surveyors & Mappers
R. E.& Associates,
HollandInc.
11770 BA'!MEADOWS ROAD, stlllE 105
PHI. (904)2BD-IJOO
.14CKSONVIUL. FLORIDA 322511
FAX (vb4)648-JZ72
FLORIDA CERW1CA1E CF AUlHORlZAllOH NO. LB 11755
TURBO SCOUR UNIT &: GUIDEPILE
CENTER POINT TERMINAL
CADO fll£: 1:517.DWQ
DUVAL COUNiY, FLORIDA
,CADO 'ltCH: DlS
I
J
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/r)i},\\,
\\\\\
\
:>
l'I
JET 42"~ (SEE DETAILS)
16'
1" EXPANDED METAL GRATE
DECK (GALVANIZED STEEL)
5'
PLATFORM 16.0'X15.0'
10" WF FRAME (TYP.)
(GALVANIZED STEEL)
6" ANGLE {TYP.}
(GALVANIZED STEEL}
Co
in
'"en
12" HP (TYP.)
(GALVANIZED STEEL OR
EPOXY COATED)
6.0' WIDE WALKWAY
1" EXPANDED METAL GRATE
DECK (GALVANIZED STEEL)
6' WAIY.WAY
;.....
0
,.,
~
~,....
PILE BENT
~
NOTE: HANDRAIL AND
KICK PLATE NOT
SHOWN IN PLAN \llEW.
HANDRAIL ON ALL
SIDES EXCAPT AT JET.
0
N
EXISTING CONCRETE
BULKHEAD
;,,
; "'. ·.... ,. .
:·:.::--:::~·.::- :
1" EXPANDED METAL GRATE
STAIRS WllH HANDRAIL
(GALVANIZED STEEL)
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-
1
GRAPHIC SCALE
I
·:·:
f'- \0'
0
I
5
I
10
JET WALKWAY AND PLATFORM PLAN #2
NOT FOR CONSTRUCTION
Proresslonul Surveyors & Muppcrs
R. E.& Associates,
HollandInc.
sno
sum:
BA'IMEADOWS ROAD,
105
PHI. (904l26G-8JDO
JAClTURBO SCOUR UNIT &: GUIDEPILE
CENTER POINT TERMINAL
DUVAL COUN1Y, FLORIDA
NOTE: HANDRAIL AND
KICK PLATE NOT
SHOWN IN PLAN VIEW.
HANDRAIL ON ALL
SIDES EXCAPT AT JET.
EXISTING
CONCRETE
DECK
·
_,,
.. .
..
~.J
JET 42"~ (SEE DETAILS)
16'
1" EXPANDED METAL GRATE
DECK (GALVANIZED STEEL)
5'
PLATFORM 16.0'XlS.O'
10" WF FRAME (TYP.)
(GALVANIZED STEEL)
6" ANGLE (TYP.)
(GALVANIZED STEEL)
lo
12" HP (TYP.)
(GALVANIZED STEEL OR
EPOXY COATED)
NEW 3/4" SLIDE
PLATE ON EXISTING
CONCRETE DECK
6.0' Vi\DE WALKWAY
1" EXPANDED METAL GRATE
~DECK (GALVANIZED SlEEL)
1
GRAPHIC SCALE
I
a
I
5
I
10
JET WALKWAY AND PLATFORM PLAN #3
NOT FOR CONSTRUCTION
Prorcsslonnl Surveyors & Mappers
R. E.& Associates,
HollandI n c.
1no BA'IMEADOWS ROAD, SUl1£ 105
PHI. (9()4}260-8300
JACICSCtMUE. FLORIDA 32250
F~ (Qb.4)6'48-3272
Fl..DRlDA CERllFlCA'lt: OF AUlHORlZAllON HO. lB 8755
TURBO SCOUR UNIT & GUIDEPILE
CENTER POINT TERMINAL
DUVAL COUNlY FLORIDA
'
16'
1" EXPANDED METAL GRATE
DECK (GALVANIZED STIEL)
5'
PLAlfORM 16.0'X15.0'
10" WF FRAME (TYP.)
(GALVANIZED STIEL)
6" ANGLE (TYP.)
(GALVANIZED STEEL)
1o
MATCH LINE
12" HP (TYP.)
(GALVANIZED STIEL OR
EPOXY COATED)
6.0' WIDE WALKWAY
1'' EXPANDED METAl GRATI
DECK (GALVANIZED STEEL)
$
6'WALKWAY
;&.
O>
PILE BENT
"A"
NOTE: HANDRAIL AND
KICK PLATE NOT
SHOWN IN PLAN VIEW.
HANDRAIL ON ALL
SIDES EXCAPT AT JET.
EXISTING CONCRETE
BULKHEAD
~
1
GRAPHIC SCALE
r
EXPANDED METAL GRATE
STAIRS WITH HANDRAIL
(GALVANIZED STIEL)
I 1-
~
0
5
10
MATCH LINE
JET WALKWAY AND PLATFORM PLAN #4
NOT FOR CONSlRUCTIQN
Professlonnl Surveyors & Mnppcrs
R. E.& Associates,
HollandInc.
ano Bt\YMEAOOWS ROllO,
SUITE 105
PHI (904)260-8300
Jt\CKSONVll.1.E. FU>RIOll 322511
Ff.X (GCH)S48-3272
FlORII>t\ CERllFlCt\lE OF MJTHCRIZATION NO. LB 8755
TURBO SCOUR UNIT &: GUIDEPILE
DUVAL COUNTY, FLORIDA
1
0111£: 7
17
WORK ORDER NO.: 25 -17
PRo.a:T NUMBER: 12117
Sl!EET 5 OF 10
Ct\OD ltat: DlS
PILE BENT
12" HP (TYP.)
APPROX. 65' LONG
INTO BEDROCK
(GALVANIZED STEEL
OR EPOXY COATED}
6" KICK PLATE
{GALVANl'ZED STEEL)
1 1/2"¢ HANDRAIL
WITH KICK PLATE
(GALVANIZED STER)
CONTINUOUS
10" WF FRAME
GALVANIZED (TYP.)
1D EXPANDED
METAl GRATING
(GALVANIZED STEEL}
EXISTING
CONC. CAP
16.5'
NOTE: JET NOT SHOWN.
.5'
16.5'
16.5'
50'
WALKWAY AND PLATFORM ELEVATION #1
GRAPHIC SCALE
I
0
i I
5
10
NOT FOR CONS1RUCTION
OAlE: 7 211
17
\IJ!llll( OROEl! NO.:
Prorcsslonnl Surveyors & Mnppcrs
R. E.& Associates,
HollandInc.
llno BA'IMEAllOWS ROAD, SUITE 105
TURBO SCOUR UNIT & GUIDEPILE
CENTER POINT TERMINAL
DllA'll\NC NO.: B- 121117
CMlO FIE: 121117.DV.C
PHf. (904)260-6300
JACICSONVIU£. FUlRJDA 322.511
Ffo!X (IKM)S411-J272
FLORIDA CER11flCAlI OF AUlllORIZAl\Oll NO. LB 6755
~1-17
Piia.ET NUMBER: 12917
SHEET 11 OF 1D
DUVAL COUNlY, FLORIDA
CADD lECH: DTS
I \
1 1/2"'/> HANDRAIL
Vi1TH KICK PLATE
(GALVANIZED STEEL)
CONTINUOUS
6" KICK PLATE
(GALVANIZED STEEL)
PILE BENT
12" HP (TYP.)
APPROX. 65' LONG
INTO BEDROCK
(GALVANIZED STEEL
OR EPOXY COATED)
10" WF FRAME
GALVANIZED (TYP.)
1" EXPANDED
METAL GRATING
(GAl VANlZED STEEL}
EXISTING
CONG. CAP
I
-m=
12" HP (TYP.)
{GALVANIZED STEEL)
MUDUNE
20·
.5'
19.5'
40'
NOTE: JET NOT SHOWN.
WALKWAY AND PLATFORM ELEVATION #2
GRAPHIC SCALE
I I I
a
5
10
NOT FOR CONSTRUCTION
DAlE: 7
7
1 1/2·~ HANDRAIL
WITH KICK PLATE
(GALVANIZED STEEL)
CONTINUOUS
12· ANGLE
NEW 3/4" PLATE ON
EXISTING CONC. DECK
EXISTING
CONC. DECK
~~~~~~§i§~
12" HP (TYP.)
(GALVANIZED STEEL)
PILE BENT
12" HP {TYP.)
APPROX. 65' LONG
INTO BEDROCK
{GALVANIZED STEEL
OR EPOXY COATED)
1" EXPANDED
METAL GRATING
(GALVANIZED STEEL)
7'
NOTE: JET NOT SHOWN.
WALKWAY AND PLATFORM ELEVATION #3
GRAPHIC SCALE
I I I
0
5
10
NOT FOR CONSTRUCTION
Proresslonnl Surveyors & Mappers
R. E. Holland
& Associates, Inc.
ano BA'l\IEADOWS ROAD, sum: IDS PH f (904)280-6300
JACICSONVIUL FUlRlDA
32255
FAX (Db4)B48-327:Z
FUlRIDA CER11ACA1£ OF AlllHCRIZAllOll HO. LB 6755
TURBO SCOUR UNIT & GUIDEPILE
SHEET II OF 10
CENTER POINT TERMINAL
DRA'MHC HO.: B-12917
DUVAL COUNTY, FLORIDA
CAllD Fl.E! 121117.DY«l
CAOO TECH: DTS
w
z
1 1/2·~ HANDRAIL
WllH KICK PLAlE
{GALVANIZED STEEL)
CONllNUOUS
~I
t-
<
~
10· WF FRAME
GALVANIZED (TYP.)
1" EXPANDED
METAL GRATING
(GALVANIZED SlEEL)
.5'
17.9'
17.9'
17.9'
17.9'
90'
wl
~I
u
~I
z
6" KICK PLATE
(GALVANIZED SlEEL)
PILE BENT
12" HP (TYP.)
APPROX. 65' LONG
INTO BEDROCK
(GALVANIZED SlEEL
OR EPOXY COATED)
MUDUNE
17.9'
17.9'
17.9'
NOTE: JET NOT SHOWN.
90'
GRAPHIC SCALE
I l I
0
5
10
WALKWAY AND PLATFORM ELEVATION #4
Proressional Surveyors & Mappers
R. E. Holland
TURBO SCOUR UNIT & GUIDEPILE
& Asso c i a t e s , Inc.
enD BA'IMEADOWS ROAD, SUITE 105
JACKSONVIUE, Fl.OlllOA 32258
PHI (9Q4)2110-4300
FAX (lib4)8''43-l272
Fl.ORIDA CERnFlc"TE Of AUlHORIZAllDN NO. LB 6755
DUVAL COUNTY, FLORIDA
NOT FOR CONS1RUCTION
OAlE: 7
17
WDAK CIUlER NO.: 251-17
PRO.E:T NUMBER: 12917
1 1/2·1/J HANDRAIL
(GALVANIZED STEEL)
5·x5" BASE PLATE
(GALVANIZED STEEL)
5· KICK PLATE
(GALVANIZED STEEL)
1" EXPANDED
METAL GRATING
(GALVANIZED STEEL)
io
,,.;
10" WF FRAME (TYP.)
(GALVANIZED STEEL)
12" HP (TYP.)
(GALVANIZED STEEL)
PILE BENT
12" HP (TYP.)
APPROX. 65' LONG
INTO BEDROCK
(GALVANIZED STEEL
OR EPOXY COAlED)
V>
w
CE
~
..........
-H
b
N
+I
io
i:o
MUOUNE
CROSS SECTION "A" WALKWAY
GRAPHIC SCALE
I I I
0
2.5
5
NOT FOR CONSTRUCTION
Professional Surveyors & Mappers
R. E.& Associates,
HollandInc.
11no
BA'IMEAOOWS ROAD, SUllE 105
TURBO SCOUR UNIT &: GUIOEPILE
CENTER POINT TERMINAL
PHI. (904)280-8300
JACICSOIMU.E. Fl.ORIDA J22.5e
FAX (ll04)1f48- J272
A..ORIOA CERTIFICATE OF' AUll!DRIZATION NO. LB 6755
DUVAL COUNTY, FLORIDA
CADD lECH: DlS
LIFTING CABLE---..._
VI NCH
PLATFORM
GUIDE PILE~
JET DISCHARGE
<
MUD BOTTOM
SECTIONAL VIE\./ OF TURBO
SCOUR UNIT & GUIDEPILE
SCOUR SYSTEMS, INC., 1150 BAILARD AVENUE
CARPINTERIA, CALIFORNIA (805> 684-5747
Figure 9. Section view of Turbo Scour Unit station.
19
Intake Grating
(Openings 1111111 than 8")
Exheual Grating
(Openings Leas Than Bj
Sourca(s): Sedam Technologies,
INC.
Dlaclalmor. Tho lnfamatlon deplcled on thll ftgu"' II for
cancaptml purpo888 anly, .,..,. to aid a lioanll8d engirar
or geclosiilt in randming prof&uional .W:.. and ii 9Jtject
to nJYtow encl approval by-ropotlllll 1911u111tory--.
Turbo Scour Unit
Center Point Terminal
Duval County, Florida
Project:
EJ13211.01
Date:
Drwn/Chkd:
Figure:
Sep.2017
AA/JRN
5C
40
50
BO
40
0
1" =
HYDROGRAPHIC SURVEY OF THE CENTER POINT TERMINAL
LOCATED ON THE ST. JOHNS RIVER
JACKSONVILLE, FLORIDA
40'
GRAPHIC SCALE
ST. JOHNS RIVER
N 2190951.07
E460973.92
EBB
)
( FLOOD
···
RGE250
MATTHEWS BROG.
RGE200
RGE 150
VICINTY MAP
NOT TO SCALE
...
RGE 100
...
JACKSONVILLE PORT AUTHORITY
,TALLEYRAND MARINE TERMINAL
N 2191212. 74 _ _,,,,..--.-..__
E 460840.95 -i!!:....l...~-..::l;lk_
RGE50
RGEOO
SITE BENCHMARK
"0242 A 1995"
ELEV. 6.21 MLLW
CENTER POINT TERMINAL
JACKSONVILLE
.,
' ,,., '
TIDE REFERENCE POINT
RGE-50
N 2190478 65
E460596.35
N 2191266.45
E 460735.21
SURVEY BASELINE
\
SURVEYORS NOTES:
g
g
~
"'~
+
co
+
""
~
ti)
ti)
NOAA Tide Station: 8720242
Name:
Longbranch, FL
Status: Accepted (Oct 5 2009)
Datum
g
g
g
...
+
+
+
GT
MN
DHQ
DLQ
2.72
2.51
0.09
0.11
HWI
LWI
2.39 Greenwich High Water Interval (in Hours)
8.91 Greenwich Low Water Interval (in Hours)
~
~
"'9"'+
1.
SOUNDINGS ARE IN FEET AND TENTHS AND REFER TO NOAA'S REPORTED
MEAN LOWER LOW WATER (MLLW) OF THE 1983-2001 TIDAL EPOCH REPORTED AT
NOAA TIDAL STATION LONGBRANCH, NUMBER 872-0242, 1963-2001 EPOCH.
2.
TIDAL REDUCTIONS ARE REFERENCED TO FOUND CONTROL STATION
BENCHMARK "0242 A 1995'. SAID BENCHMARK HAVING AN ELEVATION OF
ELEVATION 6.21 MLLW.THE TIDAL REFERENCE POINT AND CONTROL
BENCHMARK ARE LOCATED IN THE JACKSONVILLE U.S. ARMY CORPS OF
ENGINEERS DISTRICT WAREHOUSE FACILITY AT 3011 TALLEYRAND AVE.
ON THE WEST BANK OF THE ST. JOHNS RIVER.
3.
PLANE COORDINATES ARE BASED ON THE FLORIDA STATE PLANE
SYSTEM, EAST ZONE,NORTH AMERICAN DATUM OF 1983(NAD83),
TRANSVERSE MERCATOR PROJECTION.
~
ti)
ti)
LEGEND I ABBREV/A TIONS
Value Description
5.85 Mean Higher-High Water
5.76 Mean High Water
4.79 North American Vertical Datum of 1988
4.51 Mean Sea Level
4.50 Mean Tide Level
4.49 Mean Diurnal Tide Level
3.24 Mean Low Water
3.14 Mean Lower-Low Water
0.00 Station Datum
+
0
ti)
Datum:
STND
Units:
Feel
Epoch: 1983-2001
MHHW
MHW
NAVD88
MSL
MTL
DTL
MLW
MLLW
STND
g
+
"'~
~
ti)
g
4.
RGE.
=RANGE
STA
=STATION
ELEV.
= ELEVATION
(NAD83 FL EAST).
MLLW
=MEANLOWERLOWWATER
P.I.
=POINT OF INTERSECT/ON
= 37' GRADE CONTOUR
BLACK =ELEVATIONS BELOW-37.0'
RED =ELEVATIONS ABOVE -37.0'
5.
ALL MEASUREMENTS AND POSITIONS ARE IN U.S. SURVEY FEET
AND WERE MADE WITH GPS FAST STATIC,REAL TIME KINEMATIC
(R.TK) AND/OR DGPS SURVEY TECHNIQUES.
6.
DEPTH MEASUREMENTS WERE MADE WITH AN RESON 7125 MULTIBEAM
SWATH SOUNDER OPERATING AT A FREQUENCY OF 200 kHz.
7.
SURVEY WAS PERFORMED ON JUNE 06, 2017.
8.
THE INFORMATION DEPICTED ON THIS MAP REPRESENTS THE
RESULTS OF SURVEYS MADE ON THE DATES INDICATED AND CAN
ONLY BE CONSIDERED AS INDICATING GENERAL CONDITIONS
EXISTING ATTHAT TIME.
Great Diurnal Range
Mean Range of Tide
Mean Diurnal High Water Inequality
Mean Diurnal Low Water Inequality
,
Tidal Datum Analysis Period: 03/02/2002 - 02/28/2003
ARC SURVEYING & MAPPING, INC.
I
Richard J. Sawyer
Professional Surveyor and Mapper No.
6131
NOT VALID WITHOUT THE SIGNATURE AND THE ORIGINAL RAISED
SEAL OF A FLORIDA LICENSED SURVEYOR AND MAPPER
I
'\
11£L.;&~
BEARING STRUCTURE NOTED HEREON IS REFERENCED TO GRID
AS DETERMINED BY THE RECORD STATE PLANE COORDINATES
Prepared For:
,
RJS
Scale: 1" = 40'
Plot Date: 06107117
Drawn By:
CENTER POINT TERMINAL COMPANY
5202 SAN JUAN AVENUE,
JACKSONVILLE, FLORIDA 32210
PHONE: 9041364-8377
LICENSED BUSINESS NO. 6487
Project:
...
ARC Project No.:
Hydrographic Conditional Survey
JUNE 06, 2017
17-05-31
...
DATE
BY
REVISION
SHEET:
OF:
01
01
Executive Summary ofMonitoring Study Results
for Existing SedCon® Turbo Systems
Introduction:
SedCon Technologies, Inc. (SedCon) manufactures the patented SedCon® Turbo System
which eliminates the need for dredging in ship berths. The system uses a series ofnear-bottom
water jets to boost the speed of passing tidal currents just enough to prevent the deposition of
fine-grained sediments in a berthing area. The system operates daily during each ebb and flood
tide, creating a hydraulic environment that mimics the natural (pre-dredged) condition that
existed prior to the berth being first dredged.
Referring to Figures I and 2, the SedCon® Turbo System consists of a series of
submerged water pumps called Turbo Units mounted along the face of a dock. Each Turbo Unit
has a hydraulic motor-driven impeller that draws water inward through a bell-mouthed intake
and discharges it outward across the bottom as a low velocity jet. During operation, each Turbo
Unit rotates slowly sweeping a large arc-shaped area of the berth. A computer controller
operates the Turbo Units in sequence creating a series of overlapping jet patterns. Jetting action
is strong enough to prevent shoaling but not enough to cause erosion of the mud bottom, so no
additional sediment or turbidity is introduced into the water column. A hydraulic power source
(electric motor-driven pump) powers the Turbo Units via a series of header pipes, control valves,
and branching riser hoses.
REPRESENTATIVE JET FLOW PATIERN
EBB
-c___
FLOOD
----.
_L
__
/
OF_C_H-AN-N~
--
ED
- GE-
TURBO UNITS ( 4 TOTAL)
0
CONTROL HOUSE _ /
GENERIC LAYOUT
SEDCON TURBO SYSTEM
SEDCON TECHNOL OGI ES, INC
CARPI NTERIA CALIFORNIA
Figure 1. Plan view of SedCon® Turbo System.
HYORAl.l. IC HOSES
IJWCLLC:R SCCT IC>I~----+
JE T DISCHARGE
ROTA.QY ACTUATOR
TURBO UNIT COMPONENTS
Figure 2. Profile view of Turbo Unit
SedCon Technologies, Inc. has a total of eight Turbo Systems installed throughout the
country with over 100 years of combined operating time {Table 1). A permit application for a
SedCon®Turbo System has never been denied nor has a system been found to cause any
significant adverse impact to the environment. The longest running SedCon® Turbo System is
located at the INVISTA Terminal in Wilmington, NC and was installed in 1997. As a condition
of permitting, all Turbo Systems have required some degree of monitoring, with the exception of
the system installed at Naval Submarine Base Kings Bay. This paper summarizes the results of
the required monitoring studies for existing SedCon® Turbo Systems.
Table 1. SedCon® Turbo System installation sites.
Installed
1997
Dimensions (J x D)
700ft x 40ft
Units
8
Savannah, GA
1998
675ft x 40ft
3
CITGO Petroleum
Linden, NJ
2002
800ft x 36ft
4
Georgia Ports Authority
6&7
Naval Submarine Base
Kings Bay
South Carolina State Ports
Authority (2 systems)
Georgia Ports of Authority
8&9
Savannah, GA
2003
1600ft x 42ft
8
Kings Bay, GA
2006
700ft x 42ft
7
Charleston, SC
2006
2000ft x 45ft
10
Savannah, GA
2008
1400ft x 42ft
7
Facility
INVISTA
Location
Wilmington, NC
NuStar Asphalt
Permit applications for SedCon® Turbo Systems have been reviewed by the following
public agencies: Georgia Coop Fish and Wildlife Research Unit, Georgia Department of Natural
Resources Wildlife Resources Division of Fisheries, Georgia Department ofNatural Resources
Coastal Resources Division, Army Corps of Engineers Savannah, National Marine Fisheries
Service, U.S. Fish and Wildlife Service, U.S. Environmental Protection Agency, New Jersey
Department of Environmental Protection Office of Dredging and Sediment Technology, and
South Carolina Department of Health and Environmental Control Office of Ocean and Coastal
Resource Management. The main areas of concern for these agencies have been turbidity
release, dissolved oxygen loss, dissolved chemical release, fish entrainment and adjacent
shoaling.
Turbidity Release:
Turbidity monito ring at SedCon® Turbo System installations have consistently shown no
adverse impacts (Golder Associates Inc. 1999, Paulus, Sokolowsk i and Sartor, L.L.C. 2003,
General Engineering a nd Environmental, L.L.C. 2006, and GEL Engineering, L.L.C. 2007). In
fact, data collected when the system was idle has been comparable to data co llected during
system operat ion (GEL Engineering, L.L.C. 2007:7 and Golder Associates Inc. 1999: 12). T he
most complete monitoring of turbidity was carried out at the CITGO Petroleum Terminal
installation in Linden, NJ. Referring to Figure 3, the data show an initial rise in turbidity w ithin
the first twenty meters of the Turbo Unit, falling back to background levels by the time it reaches
the edge of the navigation channel (Paulus, Sokolowski and Sartor, L. L.C. 2003:Attachment B).
This initial pulse of turbidity is less than half the regulatory limit and is most likely caused by the
jet discharge mix ing the near-bottom region of the water column. Compared to conventional
ma intenance dredging, the SedCon® Turbo System has been shown to be s ignificantly less
impacting to water quality, in general and turbidity, in particular (General Engineering a nd
Environmental, L.L.C. 2006, and GEL Engineering, L.L.C. 2007).
40
During Jetting
20 , _____............. ...,__........,~---------.._..,_._._ _ _ _ _ _ _...._
~----------
20
40
- - Mid-Oeplh
Near-Bollom
--
Surface · No Jelling
0
~
- - Near·Surface
Near-Bottom - No Jelltlg
Mid-Depth - No Jelling
60
Dl st~nc·
80
100
from Turbo Unit (ml
120
Figure 3. Turbidity measurements from CITGO, Linden, NJ.
140
160
Dissolved Oxygen:
The SedCon® Turbo Units draw water from the mid-levels of the water column and
discharge it just above the bottom of the berth. As the concentration of dissolved oxygen
typically increases with elevation in the water column, Turbo Unit operation may slight ly
increase the disso lved oxygen levels of the near-bottom water (see Figure 4). Disso lved oxygen
monitoring at all SedCon®Turbo System installations showed no adverse impacts (Golder
Associates Inc. 1999, Paulus, Sokolowski and Sartor, L.L.C. 2003, General Engineering and
Environmental, L.L.C. 2006, and GEL Engineering, L.L.C. 2007). Golder Associates Inc.
(1999: 12) found that the dissolved oxygen levels remained stable over time regardless of jetting
activity. The most extensive monitoring of disso lved oxygen leve ls took place at South Carolina
State Ports Authority (General Engineering and Environmental, L.L.C. 2006, GEL Engineering,
L.L.C. 2007). These results showed that dissolved oxygen levels remained above the required
regulatory minimum in all 15 sampling events and were controlled by general water quality and
conditions unrelated to the SedCon®Turbo System (Genera l Engineering and Environmental,
L.L.C. 2006:4)
Dissolved Oxygen (mg/I)
0.00
1.00
2.00
3.00
4.00
5.00
6.00
0.0
2.0
4.0
..
..
.§. 6.0
.J:.
c..
Cll
0
6.0
....
Cll
" 10.0
5:
12.0
1-1.0
16.0
Figure 4. Dissolved Oxygen Results from CITGO, Savannah, GA
· Jetti119
_._ No Jettln1
Other Water Quality Impacts:
In addition to turbidity and dissolved oxygen levels, monitoring studies have also looked
at the impact to the following water quality variables: salinity, temperature, pH, conductivity,
total methylmercury, suspended methylmercury, dissolved methylmercury, lipids, pesticides,
PCBs, and T AL metals. These studies (Golder Associates Inc. 1999, Paulus, Sokolowski and
Sartor, L.L.C. 2003, and ENSR Corp. 2008) all showed no adverse impacts from Turbo System
operation. A bioaccumulation study was conducted at CITGO in Linden, NJ by ENSR Corp.
(2008), measuring the levels of lipids, pesticides, PCBs, T AL metals and methylmercury in
mussel tissues. Near, mid, and far-field stations were monitored for a 35 day period and no
impact was detected from Turbo System operation.
Entrainment:
SedCon® Turbo Units are equipped with a grated intake screen and an axial flow impeller
section (much like a boat propeller). The intake grating has l 0 cm wide openings and the
impeller is slow moving with large passageways between blades. Because the intake velocity of
the Turbo Unit is relatively slow, larger fish are generally able to avoid ingestion. Smaller fish
are more likely to be entrained, but are also more likely to pass through the impeller section
unharmed (see Figure 5). As a result, size and swimming speed are the two major variables
affecting the impact ofa SedCon®Turbo System on fin fish populations. Fish entrainment
studies were conducted at the CITGO, Savannah, GA (Golder Associates Inc. 1999), Georgia
Ports Authority (A.T.M. 2007, 2008), and CITGO, Linden, NJ (Paulus, Sokolowski and Sartor,
L.L.C. 2003) installations. The studies found that the Turbo System had no significant adverse
impacts on fin fish populations as a result of entrainment. The conclusion was that the system
causes a relatively small change in the affected environment and insignificant changes in
ecological functions, when compared to the existing impacts in the river, such as dredging,
shipping, runoff and natural variability (A.T.M. 2008:21).
20
18
16
u
-t5
-: 12
g
"O 10
~
~ 8
.:::::
c
Q:
6
..
2
0
0
0.5
15
2
2.5
3
Le11()1h of Fish {h1d1eS1
Figure 5: Probability of impeller impact versus fish size.
Monitoring studies by Golder Associates Inc. ( 1999), A.T.M. (2007), and Paulus,
Sokolowski and Sartor, L.L.C. (2003) looked at the effects of a Turbo System on the entrainment
of fish eggs. In the Golder and Associates Inc. ( 1999) study, they introduced thawed flashfrozen eggs and gum pellet proxies into the water column in the immediate vicinity of an
operating SedCon® Turbo Unit. Extrapolating their results and assuming worst-case conditions,
Golder and Associates Inc. estimated that 0.1 % of the passing egg population would be
destroyed by the Turbo System. Based on more probable assumptions, the estimated impact
drops to between 0 .02 and 0.06% of the passing egg population. This conclusion is supported by
the Paulus, Sokolowski and Sartor, L.L.C. (2003:7) study which found that only l of 300 salmon
eggs were damaged when introduced directly into the water intake ofa SedCon®Turbo Unit.
Pressure Change:
The effect of pressure change on ingested fish eggs was studied at the CITGO site in
Savannah, GA (Golder Associates Inc. I 999). The egg samples were rapidly taken from the
depth of the Turbo Unit intake (20 ft) to the depth of the Turbo Unit discharge (40 ft). This
pressure test showed no effect on the eggs samples. The 20 ft sample had a 96% rate of survival
and the 40 ft sample had a 95% rate of survival compared the 93% rate of survival at the
hatchery (Golder Associates Inc. 1999: 10).
Adjacent Shoaling:
Water depths in front of and adjacent to existing SedCon® Turbo Systems are routinely
monitored by the client. In no case has there been evidence of increased mud build up adjacent
to the protected area. Additionally, to the best ofour knowledge, dock owners with Turbo
Systems have never received any complaints of increased shoaling from adjacent owners. The
issue of adjacent shoaling was specifically addressed during the monitoring of an early prototype
jetting system in Grays Harbor, WA (Bailard Jenkins Technologies 1991). In this study, it was
determined that shoaling observed just outside of the protected berthing area was less than what
previously existed before the system was installed (Bailard Jenkins Technologies 1991:23). The
elimination of the rapid shoaling in the berthing area made the shoaling outside of the berthing
more noticeable, but did not increase the rate of shoaling in that area. There was also no
evidence of increased shoaling downstream of the jet array system. Instead, the jet array system
appeared to produce a broad zone of reduced shoaling that extended further downstream (Bailard
Jenkins Technologies 1991:23).
Conclusion:
With over 100 years ofcombined operation time and five systems that have been in
operation for more than 10 years each, SedCon® Turbo Systems have been shown to protect the
berthing area from shoaling and to be less impacting on the environment that periodic
maintenance dredging. Any increase in turbidity caused by a SedCon® Turbo System is brief,
limited in area and well below regulatory threshold levels. Dissolved oxygen levels remain
unaffected, if not improved by the operation ofa SedCon® Turbo System. No adverse impacts
on other water quality variables have been detected. Entrainment/impingement of marine
organisms has been shown to be not significant with larger fish avoiding entrainment and smaller
fish, eggs and larvae passing through without injury. No evidence has been found for increased
shoaling in areas adjacent to an operating SedCon®Turbo System.
Bibliography:
-A.T.M.
2008
Fish Entrainment Effects Evaluation for Water Jet Sediment Suspension Systems
in the Savannah River. Prepared for CH2M Hill/Lockwood Greene and Georgia
Ports Authority, Savannah, GA.
2007 Fisheries Effects Evaluation for Proposed Sediment Suspension System
Installation at Container Berth 8. Prepared for Georgia Ports Authority and
CH2M Hill/Lockwood Greene, Savannah, GA.
-Bailard Jenkins Technologies
1991 Terminal No. 4, Scour Jet Array System: Channel Shoaling Study, Port of Grays
Harbor. Prepared for Port of Grays Harbor, Aberdeen, WA.
-ENSR Corporation
2008 Bivalve Bioaccumulation Study CITGO Petroleum Corporation Ship Berthing
Facility, Linden, New Jersey: Water Quality and Mussel Bioaccumulation
Synthesis and Data Report. Prepared for CITGO Petroleum Corporation - Linden
Marine Terminal, Linden, NJ.
- GEL Engineering, L.L.C.
2007 Turbo Scour System Evaluation Report: Columbus Street Terminal, South
Carolina State Ports Authority, Charleston, South Carolina, Permit #2003-JH079-P. Prepared for South Carolina State Ports Authority, Charleston, SC.
-General Engineering and Environmental, L.L.C.
2006 Scour System Evaluation Report: Columbus Street Terminal, South Carolina State
Ports Authority, Charleston, South Carolina, Permit #2003-1 H-079-P. Prepared
for South Carolina Ports Authority, Charleston, SC.
-Golder and Associates Inc.
1999 Report on the Impacts of Turbo Scour Operation on Striped Bass Eggs and
Larvae in the Savannah River. Prepared for CITGO Asphalt Refining Company,
Savannah, GA.
- Paulus, Sokolowski and Sartor, L.L.C.
2003 Technical Response to: New Jersey Department of Environmental Protection
Office ofDredging and Sediment Technology. Waterfront Development Permit
No. 2009-90-0010.9,for: Turbo Scour System. Prepared for CITGO Petroleum
Corporation - Linden Marine Terminal, Linden, NJ.