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PROPOSED DREDGING FOR ACCESS, WELL INSTALLATIONS AND FLOWLINES, TAMBOUR BAY, TERREBONNE PARISH
NAME OF APPLICANT: HILCORP ENERGY, c/o Providence Engineering and Environmental, Attn: Regina Staten, 1201 Main Street, Baton Rouge, Louisiana 70802.
LOCATION OF WORK: Tambour Bay, approximately 4.2 miles south of Cocodrie, Louisiana, (29.186633, -90.654091), in Terrebonne Parish, as shown on the enclosed drawings, within Hydrologic Unit Code 08090302, West Central Louisiana Coastal, Louisiana.
CHARACTER OF WORK: The applicant has requested Department of the Army authorization to dredge an access channel in order to install and maintain a proposed drill barge, platform and appurtenant structures to drill the U2 #27 Side Track and Hood Prospects. Approximately 5,072 cubic yards of native material will be displaced via propwashing and 48,715 cubic yards of open water will be hydraulically dredged to access the well sites. A dredge discharge line will be used to transport the hydraulically dredged material from open water to the spoil placement areas at an elevation conducive to the establishment of marsh habitat. If the wells are successful, approximately 5,205 linear feet of one (1) two-inch diameter gas line and approximately 5,205 linear feet of one (1) four-inch diameter flowline will be installed from the wells to an existing facility.
JOINT PUBLIC NOTICE
November 12, 2018
United States Army
Corps of Engineers
New Orleans District
Attn: Regulatory Branch
7400 Leake Avenue
New Orleans, Louisiana 70118
State of Louisiana
Department of Environmental Quality
Attn: Office of Environmental Services
Post Office Box 4313
Baton Rouge, Louisiana 70821-4313
Project Manager: Dirreen Arnold
(504) 862-2301 / fax: (504) 862-2574
dirreen.s.arnold@usace.army.mil
Permit Application Number:
MVN-2018-01387-CA
Project Manager:
Elizabeth Hill
(225) 219-3225 / fax: (225) 219-3156
WQC Application Number:
WQC-181107-02
Interested parties are hereby notified that a permit application has been received by the
New Orleans District of the US Army Corps of Engineers pursuant to: [X] Section 10 of the
Rivers and Harbors Act of March 3, 1899 (30 Stat. 1151; 33 USC 403); and/or [X] Section 404
of the Clean Water Act (86 Stat. 816; 33 USC 1344).
Application has also been made to the Louisiana Department of Environmental Quality,
Office of Environmental Services, for a Water Quality Certification (WQC) in accordance with
statutory authority contained in LRS 30:2074 A(3) and provisions of Section 401 of the Clean
Water Act.
PROPOSED DREDGING FOR ACCESS, WELL INSTALLATIONS
AND FLOWLINES, TAMBOUR BAY, TERREBONNE PARISH
NAME OF APPLICANT: HILCORP ENERGY, c/o Providence Engineering and Environmental,
Attn: Regina Staten, 1201 Main Street, Baton Rouge, Louisiana 70802
LOCATION OF WORK: Tambour Bay, approximately 4.2 miles south of Cocodrie, Louisiana,
(29.186633, -90.654091), in Terrebonne Parish, as shown on the enclosed drawings, within
Hydrologic Unit Code 08090302, West Central Louisiana Coastal, Louisiana.
CHARACTER OF WORK: The applicant has requested Department of the Army authorization
to dredge an access channel in order to install and maintain a proposed drill barge, platform and
appurtenant structures to drill the U2 #27 Side Track and Hood Prospects. Approximately 5,072
cubic yards of native material will be displaced via propwashing and 48,715 cubic yards of open
water will be hydraulically dredged to access the well sites. A dredge discharge line will be used
to transport the hydraulically dredged material from open water to the spoil placement areas at
an elevation conducive to the establishment of marsh habitat. If the wells are successful,
approximately 5,205 linear feet of one (1) two-inch diameter gas line and approximately 5,205
linear feet of one (1) four-inch diameter flowline will be installed from the wells to an existing
facility.
-2-
The applicant has stated that the project has been designed to avoid and minimize direct
and secondary adverse impacts to the maximum extent practicable. The proposed project will
not directly impact any jurisdictional wetlands and compensatory mitigation is not anticipated.
The comment period for the Department of the Army Permit and the Louisiana
Department of Environmental Quality WQC will close 20 days from the date of this joint public
notice. Written comments, including suggestions for modifications or objections to the
proposed work, stating reasons thereof, are being solicited from anyone having interest in this
permit and/or this WQC request and must be submitted so as to be received before or by the
last day of the comment period. Letters concerning the Corps of Engineers permit application
must reference the applicant's name and the Permit Application Number, and be forwarded to
the Corps of Engineers at the address above, ATTENTION: REGULATORY BRANCH. Similar
letters concerning the Water Quality Certification must reference the applicant's name and the
WQC application number and be mailed to the Louisiana Department of Environmental Quality
at the address above. Individuals or parties may request an extension of time in which to
comment on the proposed work by writing, faxing, or e-mailing the Corps of Engineers Project
Manager listed above. Any request must be specific and substantively supportive of the
requested extension, and received by this office prior to the end of the initial comment period.
The Section Chief will review the request and the requestor will be promptly notified of the
decision to grant or deny the request. If granted, the time extension will be continuous to the
initial comment period and, inclusive of the initial comment period, will not exceed a total of 30
calendar days.
The application for this proposed project is on file with the Louisiana Department of
Environmental Quality and may be examined during weekdays between 8:00 a.m. and 4:30
p.m. Copies may be obtained upon payment of costs of reproduction.
Corps of Engineers Permit Criteria
The decision whether to issue a permit will be based on an evaluation of the probable
impacts, 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 benefit 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 the cumulative effects thereof; among those are
conservation, economics, aesthetics, general environmental concerns, wetlands, historic
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.
-3-
The U.S. Army Corps of Engineers 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 U.S. Army Corps of Engineers to determine whether to make, modify, condition, or deny
a permit for this proposal. To make this decision, comments are used to assess impacts on
endangered species, historic properties, water quality, general environmental effects, and other
public interest factors listed above. Comments are used in the preparation of an Environmental
Assessment and/or an Environmental Impact Statement pursuant to the National Environmental
Policy Act. Comments are also used to determine the need for a public hearing and to
determine the overall public interest of the proposed activity.
The New Orleans District is unaware of properties listed on the National Register of
Historic Places near the proposed work. The possibility exists that the proposed work may
damage or destroy presently unknown archeological, scientific, pre-historical, historical sites, or
data. Issuance of this public notice solicits input from the State Archeologist and State Historic
Preservation Officer regarding potential impacts to cultural resources.
Our initial finding is that the proposed work would not affect any species, nor affect any
habitat designated as critical to the survival and recovery of such species, listed as endangered
by the U.S. Department of Interior. The New Orleans District has determined that the proposed
project is located within waters known to be occupied by the endangered West Indian Manatee
(Trichechus manatus) and determined with the inclusion of the Standard Manatee Conditions
for In-Water Activities the proposed activity is not likely to adversely affect the species based on
the Standard Local Operating Procedure for Endangered Species in Louisiana (SLOPES),
dated October 22, 2014, between the U.S. Army Corps of Engineers, New Orleans and U.S.
Fish and Wildlife Service, Ecological Services Office, the Corps has determined that with the
inclusion of the Standard Manatee Conditions for In-Water Activities, the proposed work is not
likely to adversely affect the West Indian Manatee.
This notice initiates the Essential Fish Habitat (EFH) consultation requirements of the
Magnuson-Stevens Fishery Conservation and Management Act. The applicant's proposal may
result in the destruction or alteration of 0.0 acres of EFH utilized by various life stages of red
drum and penaeid shrimp. Our initial determination is that the proposed action would not have
a substantial adverse impact on EFH or federally managed fisheries in the Gulf of Mexico. Our
final determination relative to project impacts and the need for mitigation measures is subject to
review by and coordination with the National Marine Fisheries Service.
If the proposed work involves deposits of dredged or fill material into navigable waters,
the evaluation of the probable impacts will include the application of guidelines established by
the Administrator of the Environmental Protection Agency. Also, a certification that the
proposed activity will not violate applicable water quality standards will be required from the
Department of Environmental Quality, before a permit is issued.
-4-
Any person may request, in writing, within the comment period specified in this notice,
that a public hearing be held to consider this application. Requests for public hearings shall
state, with particularity, the reasons for holding a public hearing. You are requested to
communicate the information contained in this notice to any other parties whom you deem likely
to have interest in the matter.
The applicant has certified that the proposed activity described in the application
complies with and will be conducted in a manner that is consistent with the Louisiana Coastal
Resources Program. The Department of the Army permit will not be issued unless the applicant
received approval or a waiver of the Coastal Use Permit by the Department of Natural
Resources.
JOHN M. HERMAN
Chief, Central Evaluation Section
Regulatory Branch
Enclosure
_
^
Ho o d Pr
o spec t
La t
:29°1
1'
1
1.
88"N (
83)
Lo ng:90°39'
14.
73"W (
83)
X=2,
216,
787.
002(
27)
Y =189,
647.
987(
27)
_
^
_
^
_
^
U 2#27S ide T r
ack
La t
:29°1
1'
09.
24"N (
83)
Lo ng:90°39'
09.
74"W (
83)
X=2,
217,
230.
709(
27)
Y =189,
383.
348(
27)
2
1
Legend
_
^
_
^
0
2
M iles
Pr
o spec tLo c a t
io ns
Exist
ing Fa c ilit
y
Pr
o po sed 4"Flo wlines (
~5,
205T o t
a lLinea rFeet
)
Pr
o po sed 2"Ga slines (
~5,
205T o t
a lLinea rFeet
)
Vicinity Map
Joint Permit Application
T er
r
eb o nne Pa r
ish,Lo uisia na
Hilcorp Energy Company
U 2#27S ide T r
a c k a nd Ho o d Pr
o spec t
Drawn By
Checked By
Approved By
Reference
Ba se m a pc o m pr
ised o fES RIS t
r
eet
M a pU S Ada t
a.
T DJ
9/
17/
18
RS
9/
17/
18
OPB
Project Number
1140040
Drawing Number
1140040A001
9/
17/
18
1
Figur
e
Pr
o videnc e Engineer
ing a nd Env
ir
o nm ent
a lGr
o upLLC
Exist
ing Fa c ilit
y
La t
:29°10'
45.
18"N (
83)
Lo ng:90°39'
07.
61"W (
83)
Hood P rospe c t
L at
:29°1
1'
1
1.
88"N(
83)
L ong:90°39'
14.
73"W (
83)
X =2,
216,
787.
002(
27)
Y=189,
647.
987(
27)
_
^
_
^
U 2#27Sid e Trac k
L at
:29°1
1'
09.
24"N (
83)
L ong:90°39'
09.
74"W (
83)
X =2,
217,
230.
709(
27)
Y=189,
383.
348(
27)
_
^
2,
000
1,
000
Legend
_
^
_
^
0
2,
000
Fe e t
P rospe c tL oc at
ions
Ex
is
t
ing Fac ilit
y
P ropose d 4"Flowline s(
~5,
205Tot
alL ine ar Fe e t
)
P ropose d 2"Gasline s(
~5,
205Tot
alL ine ar Fe e t
)
Reference
Base m ap c om prise d ofU nit
e d St
at
e sGe ologic alSurv
e y(
U SGS)
7.
5m inut
e t
opographic m ap,"
Coc od rie ,L A"
.
Site Location Map
Joint Permit Application
Te rre b onne P arish,L ouisiana
Hilcorp Energy Company
U 2#27Sid e Trac k and Hood P ros
pe c t
Drawn By
Checked By
Approved By
TDJ
9/
17/
18
RS
9/
17/
18
O PB
Project Number
1140040
Drawing Number
1140040A002
9/
17/
18
2
Figure
Provid e nc e Engine e ring and Env
ironm e nt
alGroup L L C
Ex
is
t
ing Fac ilit
y
L at
:29°10'
45.
18"N(
83)
L ong:90°39'
07.
61"W (
83)
Hood P rospe c t
L at
:29°1
1'
1
1.
88"N(
83)
L ong:90°39'
14.
73"W (
83)
X =2,
216,
787.
002(
27)
Y=189,
647.
987(
27)
U 2#27Sid e Trac k
L at
:29°1
1'
09.
24"N (
83)
L ong:90°39'
09.
74"W (
83)
X =2,
217,
230.
709(
27)
Y=189,
383.
348(
27)
_
^
_
^
_
^
1,
000
500
Legend
_
^
_
^
0
1,
000
Fe e t
P rospe c tL oc at
ions
Ex
is
t
ing Fac ilit
y
P ropose d 4"Flowline s(
~5,
205Tot
alL ine ar Fe e t
)
P ropose d 2"
Gasline s(
~5,
205T
ot
alL ine ar Fe e t
)
Reference
Base m ap c om prise d ofU nit
e d St
at
e sGe ologic alSurv
e y(
U SGS)
7.
5m inut
e t
opographic m ap,"
Coc od rie ,L A"
.
Aerial Photograph
Joint Permit Application
Te rre b onne P arish,L ouisiana
Hilcorp Energy Company
U 2#27Sid e Trac k and Hood P ros
pe c t
Drawn By
Checked By
Approved By
TDJ
9/
17/
18
RS
9/
17/
18
O PB
Project Number
1140040
Drawing Number
1140040A003
9/
17/
18
3
Figure
Provid e nc e Engine e ring and Env
ironm e nt
alGroup L L C
Ex
is
t
ing Fac ilit
y
L at
:29°10'
45.
18"N(
83)
L ong:90°39'
07.
61"W (
83)
Name
Access from Bayou
Petit Caillou (water
depths >10')
Proposed Propwash 1
Proposed Propwash 2
Proposed Propwash 3
Proposed Propwash 1
Length: 334'
Area: 0.523 Acres
Volume: 434 cu.yds.
Proposed Propwash 4
Proposed Propwash 5
Proposed Hydraulic
Dredge
Crossing Pipelines to
be lowered - 1
Crossing Pipelines to
be lowered - 2
Crossing Pipelines to
be lowered - 3
Crossing Pipelines to
be lowered - 4
Proposed Propwash 2
Length: 450'
Area: 0.756 Acres
Volume: 583 cu.yds.
POB
POE
POB
POE
POB
POE
POB
POE
POB
POE
POB
POE
POB
POE
POB
POE
POB
POE
POB
POE
Latitude (83)
29° 13' 35.29" N
29° 13' 32.42" N
29° 12' 51.63" N
29° 12' 47.44" N
29° 12' 24.99" N
29° 12' 20.74" N
29° 12' 05.36" N
29° 11' 54.73" N
29° 11' 46.35" N
29° 11' 42.44" N
29° 11' 25.13" N
29° 11' 10.02" N
29° 11' 20.63" N
29° 11' 21.00" N
29° 11' 20.58" N
29° 11' 20.93" N
29° 11' 19.13" N
29° 11' 19.60" N
29° 11' 18.13" N
29° 11' 18.53" N
Longitude (83)
90° 40' 21.79" W
90° 40' 23.39" W
90° 40' 30.01" W
90° 40' 28.59" W
90° 40' 21.40" W
90° 40' 20.03" W
90° 40' 15.05" W
90° 40' 13.01" W
90° 40' 12.77" W
90° 40' 12.66" W
90° 40' 02.10" W
90° 39' 08.24" W
90° 39' 57.54" W
90° 39' 56.25" W
90° 39' 57.42" W
90° 39' 56.09" W
90° 39' 54.21" W
90° 39' 53.09" W
90° 39' 51.96" W
90° 39' 50.71" W
Proposed Propwash 3
Length: 446'
Area: 0.717 Acres
Volume: 555 cu.yds.
Proposed Propwash 4
Length: 1,108'
Area: 1.762 Acres
Volume: 2,875 cu.yds.
See Figure1a
Crossing Pipelines - 1
Length: 120'
Crossing Pipelines - 2
Length: 123'
Proposed Propwash 5
Length: 395'
Area: 0.645 Acres
Volume: 625 cu.yds.
Hood Prospect
Lat = 29°11'11.88" (83)
Lon= -90°39'14.73" (83)
X=2,216,787.002 (27)
Y=189,647.987 (27)
U2 #27 Side Track
Lat = 29°11'09.24" (83)
Lon= -90°39'09.74" (83)
X=2,217,230.709 (27)
Y=189,383.348 (27)
A
B
Crossing Pipelines - 3
Length: 110'
A'
C
Crossing Pipelines - 4
Length: 118'
Proposed Hydraulic Dredge
Length: 6,556'
Area: 12.487 Acres
Volume: 48,715 cu.yds.
3,000'
1,500'
0'
B'
Existing Facility
Lat: 29°10'45.18" N
Lon: -90°39'07.61" W
C'
3,000'
Scale: 1'' = 3,000'
Legend
Access Site Plan
Proposed Propwash Area (High Tide Total = 5,072 cu.yds.)
Proposed Hydraulic Dredge (High Tide Total = 48,715 cu.yds.)
Joint Permit Application
Terrebonne Parish, Louisiana
Proposed Well Location
Notes
1.
2.
3.
4.
Quantities calculated using survey conducted on 8/14/2018.
Mean high water +1.0' NAVD88.
Water line at time of survey was +0.5' NAVD88.
Calculations based on 70' wide canal, 7.5' Draft, and 0.5' Clearance.
Reference
Hilcorp Energy Company
U2 #27 Side Track and Hood Prospect
Drawn By
JS
10/04/18
Checked By
TDJ
10/04/18
Approved By
RS
10/04/18
Project Number
4a
1140-040-000
Drawing Number
Base map comprised of Bing Maps aerial imagery (c) 2018.
1140-040-A001
Figure
Providence Engineering and Environmental Group LLC
Proposed 4" Flowlines (~5,205 Total Linear Feet)
Proposed 2" Gaslines (~5,205 Total Linear Feet)
Proposed Spoil Pile
Area: 7.539 Acres
Volume: 48,715 cu.yds.
Dredge Discharge Line
Proposed 15' x 57'
Right-of-Way
Dredge Discharge Line
200'
100'
0'
200'
Access Site Plan
Legend
Proposed Spoil Pile (~48,715 cu.yds.)
Notes
1.
2.
3.
4.
Quantities calculated using survey conducted on 8/14/2018.
Mean high water +1.0' NAVD88.
Water line at time of survey was +0.5' NAVD88.
Calculations based on 70' wide canal, 7.5' Draft, and 0.5' Clearance.
Reference
Joint Permit Application
Terrebonne Parish, Louisiana
Hilcorp Energy Company
U2 #27 Side Track and Hood Prospect
Drawn By
JJS
10/23/18
Checked By
TDJ
10/04/18
Approved By
RS
10/04/18
Project Number
1140-040-000
Drawing Number
Base map comprised of Bing Maps aerial imagery (c) 2018.
1140-040-A001
4b
Figure
Providence Engineering and Environmental Group LLC
Scale: 1'' = 200'
20
20
Water Line (+1.0')
0
MHW +1.0'
MLW 0.0'
0
8.0'
1.5'
Elevation
Elevation
Proposed Hydraulic Dredge (70')
Section A-A'
Horizontal Scale: 1" = 20'
Vertical Scale: 1" = 20'
-20
-20
20
20
Water Line (+1.0')
0
MHW +1.0'
MLW 0.0'
0
8.0'
Elevation
Elevation
Proposed Hydraulic Dredge (160')
Section B-B'
2.9'
Horizontal Scale: 1" = 50'
Vertical Scale: 1" = 20'
-20
-20
20
20
Water Line (+1.0')
0
8.0'
3.6'
-20
Section C-C'
Horizontal Scale: 1" = 50'
Vertical Scale: 1" = 20'
-20
Note
Access Details
Access will be during high tide.
Joint Permit Application
Terrebonne Parish, Louisiana
Hilcorp Energy Company
U2 #27 Side Track and Hood Prospect
Reference
Drawn By
JS
10/04/18
Checked By
TDJ
10/04/18
Approved By
RS
10/04/18
Project Number
5a
1140-040-000
Drawing Number
Details comprised from client provided figure.
1140-040-A002
Figure
Providence Engineering and Environmental Group LLC
0
MHW +1.0'
MLW 0.0'
Elevation
Elevation
Proposed Hydraulic Dredge (160')
Terrebonne
Terrebonne
1'
2'
U2