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DATE ? - 3S- ?2>
TO: I j OMS-2-2 \ ,
FROM: OS-2-2
Plan of Exploration J^ lB^^m\J^H^<^ i^x^H and Environmental Report,
Lie OCS-G C77 f ,7- Control No. fi- / 3 .
IP'
EXPLORATION PLAN
SOHIO PETROLEUM COMPANY
OCS-G-5782
VIOSCA KNOLL BLOCK 861
OFFSHORE PLAQUEMINES PARISH, LOUISIANA
Office of
mi
Records Maiwgr-meni
July 13, 1983
I
LIST OF ATTACHMENTS
A. Description of D r i l l i ng R1g •
B. Letter from SoMo Regional Geophysicist
C. Vic in i ty & Well Locatlori Plats
D. Geologic Cross Sections 4 Structure Maps
E. D r i l l i ng Mud Components
F. Environmental Report and Coastal Zone Management Consistency Cer t i f ica t ion
- i -
EXPLORATION PLAN
SOHIO PETROLEUM COMPANY
r OCS-G-5782
| * VIOSCA KNOLL BLOCK 861
OFFSHORE PLAQUEMINES PARISH, ,LOUiSIANA
Pursuant to the requirements of 30 CFR 250.23-1, Sohlo Petroleum
Company submits the following Plan of Exploration fo r Viosca Knoll Block 861.
( j j EXPLORATION ACTIVITY
The proposed exploration ac t i v i t y for the subject t rac t consists of
d r i l l i n g f i ve (5) exploratory wel ls from f ive (5) separate surface locations.
The wel ls w i l l be d r i l l e d in sequence beginning about August 15,
1983. The estimated time to d r i l l the wells i s about six (6) months. The
f i r s t well w i l l be d r i l l ed commencing about August 15, 1983.
( i i ) PROPOSED DRILLING RIG
Sohio presently has under contract the Diamond "M" Semi-Submersible
"New Era". The "New Era" or a similar type r i g w i l l be used for this
project. This r i g Is capable of d r i l l i n g to 30,000' in water depths of
1,200*. Attachment A-l re f lec ts the vessel's speci f icat ions. Attachments A-2
and A-3 are drawings of the r i g ' s d iverter and BOP systems.
' (111) GEOPHYSICAL WORK
AU of the geophysical work preparatory to i n i t i a t i o n of exploratory
operations has been completed. A velocity survey w i l l be run on the wells
when t o t l l j depth has bedn reached. No other geophysical work 1s planned
unless data obtained from d r i l l i n g operations necessitates addit ional d e f i n i -
t i on detail from conventional re f lec t ion seismic methods.
A shallow hazard report en t i t led "Hazard Study Blocks 860, 861, 862
and 90b Viosca Knoll Area", was prepared by John Chance A Assoc., Inc. and
two (2) copies are submitted with th is Plsn. Plans of Exploration for Blocks
860, 862, and 905 w i l l be submitted at a later date.
The Viosca Knoll Haza*d Study has been reviewed by Mr. Phil Hosemann,
Sohio's Regional Geophysicist. Attachment B 1s a l e t t e r from Mr. Hosemann In
which he agrees wi th John Chance's conclusions and addresses shallow hazards
at proposed well s i t es .
( i v ) VICINITY AND LOCATION MAPS
Attachment C-l i s a v i c i n i t y map depicting the subject t r ac t ' s posi
t i on relat ive to the Louisiana shoreline. No new onshore f a c i l i t i e s w i l l be
required for d r i l l i n g these proposed exploratory wel ls . Existing service
companv f a c i l i t i e s 1n the Venice Area have su f f i c ien t capacity to accomodate
t h i s project without any modif ication or expansion.
- 2 -
Attachment C-2 depicts the proposed surface locations for each well
,A11 f ive (5) wel ls are straight holes d r i l l ed from separate surface loca
r t1ons. The surface location and depth of each well 1s as fo l lows:
| Wei r HA" TVD 7,075'
Surface Location: ,4350' FWL & 7775' FWL of Block 861
Water Depth: 910'
Well "B" TVD 7,075'
Surface Location: 800' FWL & *900' r 3L of Block 861
Water Depth: 960'
Well "C" TVD 8,075'
Surface Location: 3200' FWL & 800' FSL of Block 861
Water Depth: 1050'
Well "D" TYD 7,575'
Surface Location: 7600' FWL * 1800' FSL of Block 861
Water Depth: 1060'
Well "E" TVD 7,575'
Surface Location: 5200' FWL & 2575' FSL of Bit k 861
Water Depth: 820'
-3-
(v)' STRUCTURE MAPS AND CROSS SECTIONS
j Structure maps and cross sections for the proposed exploratory wells
are o,f a conf ident ia l nature and as such, are exempt from disclosure under the
Freedlmj of Information Act. This data should not be made available to the
pub l ic , nor provide^ to any affected state or local government personage.
Structure maps and cross-sections are included in f ive (5) confidential copies
of th is plan as Attachments D-l through D-3.
(v i ) OTHER RELEVANT DATA
(A) Oil Sp i l l Contingency Plan
Sohio Petroleum Company is a member of Clean Gulf Asso
c ia tes (CGA) and would u t i l i z e thet organization's equipment to
clean up an o i l s p i l l . The closest CGA bases are at Venice,
Grand Isle and Morgan Ci ty , Louisiana, respectively. Response
times for CGA Fast Response Units from those three locations
would be 10, 14 and 26 hours, respectively. Manpower to operate
the CGA's equipment would be provided by Peterson Maritime
Services, Inc. whose personnel are trained for o i l s p i l l clean
up operations. Sohio's supervisory personnel w i l l d i rec t the
clean up operations and w i l l maintain overall responsib i l i ty
u n t i l the operation is successfully completed. Additional
de ta i l s can be found ir- Sohio's Oil Sp i l l Contingency Plan for
the Gulf of Mexico. This Plan has been previously approved by
the Minerals Management Service.
-4-
(B) L1 st ' of Mud Components
Attachment E-l Is a detailed l i s t of the proposed d r i l l i n g
mud components and addi t ives, including the common and chemical
trade Viame of each component.
(C) Gasepus Emissions ,
Exploratory d r i l l i n g operations w i l l be conducted from the
surface si te described in Section ( i v ) using a mobile d r i l l i n g
un i t s imi lar to the un i t described in Section ( i i ) . This opera
t i on w i l l be of a temporary nature with a maximum duration of
six (6) months. At the f a c i l i t y s i t e , gaseous emissions w i l l be
generated by the r i g engines and fuel tanks, the attendant work
boat, stand-by boat, crew boat, and hel icopter, and the produc
t i on test ing of prospective reservoirs. Gaseous emissions at
the dock si te in Venice, Louisiana w i l l be generated by the work
boat, crow boat and helicopter. On-shore staging for th is
operation w i l l be from exist ing f a c i l i t i e s , so there w i l l be no
s ign i f i can t increase in emissions for th is ac t i v i t y . Projected
emissions from th i s ac t i v i t y have been calculated and are
presented in the Environmental Report, Attachment F.
(D) Coastal Zone Management (CZM) Consistency Cer t i f icat ion
The proposed a c t i v i t i e s described in detai l in th is Plan
comply with Louisiana's and Mississippi 's approved CZM programs
and w i l l be conducted in * manner consistent with those
programs. Attachment F, Environmental Report and Consistency
Cer t i f i ca t i on are included in th is report as required for a CZM
Program Consistency Review.
-5-
Diamond iv- New Era
Semi-Submersible Drilling Unit
Water Dep'.h Capacity 1.200 II
, Drilling Oepth Capacity 30.000 tt
DraH_ 15 5 It 20 It 23 ft 50 It
Condition Lightship
Ocean Tow Field Move
Doling
Displacement 7.493 LT
10.110 LT 11.642 LT 16.404 LT
Top Deck Load
1300 ST 2688 ST 2688 ST
Vessel
Classification ABS * Al (El (M) Length ?90 ll Beam 200 ll Hulls (2)
Beam 35 ft Depth 25 ft
Main Deck 95 It Pipe (lack 108 It Drill Floor 128 25 It Natural Period
Heave 20 7 sec Roll 40 6 se. Pitch 31 5 sec
Propulsion 5100 hp
Cranes Two Link Bell ABS 230. 50-lon
Heliport For S-61N helicopter
Storage
Quarlers 70-man f 6-man hospital (exiansion space available)
Bulk l.nks 9120 ft ' Sack Slorage 3500 sx Fuel 5100 bbl Potable Water 700 bbl Drilling Water 15.642 bbl Mud Tanks 1575 bbl
Safety
Fire Extinguishers One lol portable. CO, Hood system. One 500-lb dry chemical.
Uie Jackets Per USGS Regulations
Lite Ralls Four 8-man
Lile Boats Two
Anchoring Eight 2*« HI x 4800 II anchor chains, each with 30.000-lb anchor Eight tension recorder*
Motion Compensator Vetco MC 400-200
Drilling Equipment
Derrick & Substructure
Drawworks
Mud Pumps
Mixing Pumps
Prime Movers
Rotary
Travel Block
took Swivel Shale Shaker
Drill P-ps
Drill Collars
Blowout Preventers (All H,S Trimmed)
160 ft Pyramid. 1 .GOO.000 lb with Continental Emsco crown block 50 It x 50 ft x 33.25 l! welded superstructure
Oilwell E-3000. two EMD D 79 CC motors. Baylor 7838 electric brake. 1 '/2-in wire line
Two Oilwell 1700 PT Triplex Two EMO D-79 DC motors each pump Three Mission 5x6 centrifugals with 75 hp electric motors Two GM EMD MD 16E-8 diesel. 3070 hp. each driving EMD A 20-6 2000-kw AC generators One GM EMO MD 16 E-8 diesel. 2200 hp. driving FMD A 20-6 1500-kw AC generators
Oilwell 37VHn. with Oilwell RT 2010 transmission EMD D-79 DC motor
0ilwjiJ_650jon_withjlignment guide
BJ 5500 dynaplex
Oilwell PC 650
Hutchinson-Hayes Rtvimba 102
Accumulator
Diverter
Desander
DesiltP'
Degasser
AC-DC System
Emergency Generator
Riser
Riser Tensioners
Guldii Une Tensioners
Choke Manifold
instruments
5- hr Grades E and S-135 6- in. and^7V4-in,
Two Shaeffer 18¥«-in.. 5000 psi annular Two Cameron Type "U double units. I M H O . 10.000 psi
One Collet connector, hydraulic. 18%-tn.. IO.OOO psi
660-gal. 3000 psi Payne
Regan KFDH 3
Demco. six 8-in. cones with 50-hp 5 x 6 Mission pump
Demco._416-H Siltmaster with SO-hp 5 K 6 Mission pump
Wellco 5200
GEJ^-una SCR. each 750 v. JOOOa.
CAT 0343 with 250-kw AC_generator
1200-ft. 21-in Cameron x-52 integral choke and kill line One Collet connector, hydraulic. 18% in.. 10.000 psi Three 21-in. Riser pur loints. 40 ft 20 It and 10 It. RCK connector ends One Telescoping jGint One ball joint 18%-in . 5000 psi
One beH nipple.
Six Western Gear 80.000-lb. 50-11[stroke
Four Wesiern Gear 16.000-lb. 40-ft stroke
10,000 psi WP Martin Decker lour-channel recorder Watco Flo Sho Martin Oecker pit volume totalizer with pump stroke counters Honeywell RS-5 aroustic position indicator Weather inst-uments. SSB & FM radio
ATTACHMENT A-l
CB HYDRAULIC CONTROL HOSES
HOSE CLAMP ~
DAU. JOINT
\ \
r AIR OPERATEO «r OATE VALVE T
_ OIVEHTEH OVER SIDE
DIVERTER SYSTEM
FLOWUNE (DIVERTER).
T DIVERTER OVER SIOE
^ j - ' TELESCOPING JOINT
AIR OPERATED HT GATE VALVE r - * i n
h i n !
21~ INTEGRAL RISER JOINT
fe WEU. ME*0 CONNECTOR
U l f J RECEIVER TANK
DIVERTER SYSTEM
CAMEHON r r x v r WAUL MARINE RISER AS REQUIRED. WIT 4 ~9CK~ ENO CONNECTORS ANO INTE%RAL J V T CHOKE ANO KILL UNE.
CAMERON I M M * BALL JOINT WITH 10* DEFLECTION. PRESSURE BALANCED. WITH "RCK" CONNECTOR TOP.
SHAEFFER I W SOOOf WP BOP
CAMERON I M M * HYDRAULIC COLLET CONNECTOR. lOXDOf W.P.
5* PIPE RAMS
CAMERON TYPT ~V I W « " 1O0D0 W.P. DOUBLE JNIT OOP WITH t , yvtr vuxxm CLAMP HUB OUTLETS. ASSEMBLED WITH WEDGE LOCKS.
§77 CLAMP HUB BX-164 RING GROOVE.
CAMERON lS-a/4" 10.0C « COLLET WELLHEAD CONNECTOR.
BLOWOUT PREVENTER ARRANGEMENT ANU SPECIFICATIONS
DIAMOND M -NEW ERA" Attachment A-3
SOHIO PETROLEUM i COMPANY
Office Correspondence July 13, 1983
From:
R, J.- fcroussard
P. Hosemann
Subject: Viosca Knoll 860/861/905 Shallow Hazard Survey
Gulf Coast Division geophysicists have revieweM che above hazard survey in relation to the exploration plan to be submitted to the Minerals Management Service. This hazard survey was conducted by J. Chance in June of 1983. Geophysicists have also reviewed the basic dita used in compiling t h i s hazard survey report.
We conclude that no shallow d r i l l i n g hazards exist beneath or adjacent to any of the proposed well locations in this ploration plan.
P. Hosemann
ATTACHMENT B
15,840 00*
SOHIO PETPOLEurV CO
O.C S -G - 5 7 8 2
E O
8 6 0
o i o |
3 3 5- ' - -M-'^s
0 SHORf
S05
MASTER S H E E T toco ?T
=3
3 L K . 8 6 I
PROPOSED LOCATION
o o o <r 862 CO
in
Lot 29< Lonq 8 8 '
0 7 27
37 I 2
4 9 7 2K-,
5,840 00
ATTACHMENT C-l
PROPOSED MINERAL DEVELOPMENT VIOSCA KNOLL AREA
G U L F OF M E X I C O
APPLICATION BY
JULY 13 , 1 9 8 3 SOH I O PETROLEUM CO
LAFAYETTE , LOUISIANA
I 5200"
1 L4
SOHIO PETROLEUM CO,
0 C S - G - 5 7 8 2
4350
BLK. 861 CNJ
CO
Prepared By
John E. Chonce A A*«ociofe» , Inc.
905
ATTACHMENT C-2
SOHIO PETROLEUM CO
PLAN OF EXPLORATION PROPOSED UXATIONS
VIOSCA KNOLL AREA
SCALE I t 2 0 0 0 7 / I 2 / 8 3
DRILLING MUD COMPONENTS
SOHIO PETROLEUM COMPANY
, r OCS-G-5782
! | * * VIOSCA KNOLL BLOCK 861
Products of IMCO Services are l i s t ed i n th i s program fo r i l l u s t r a t i on purposes. Equivalent or comparable products are available from other service companies, such as NL Baroid, Magcobar and Milchem.
TRADE NAME
IMCO GEL
IMCO SURLIFT
IMCO GELEX
IMCO FLOX
IMCO POLY RX
IMCO RD-III
IMCO C-CORR
IMCO X02
IMCO BAR
CAUSTIC SODA
IMCO LIG
SODA ASH
COMPOSITION
Western Bentonite; A natural occurring element containing plates of S i l ica A alumina ( Iner t )
Pre-shaped, wet processed, high density chrysot i le asbestos (a native calcium magnesium s i l i c a t e )
Co-polymer of polyvinyl acetate & maleic anhydride
Polyacrylamide
Proprietary blend containing modified ;ignosulfonates & modified l i g n i t e
Proprietary blend containing modified 11gnosulfonates & modified 1 Igni te & chromate
An organic f i lming amine
An Inorganic compound of the b i s u l f i t e family
Mined barite (Ground barium sul fa te)
Sodium Hydroxide
L ign i te , ground A refined
Sodium ca-bonate
PURPOSE
Primary wall bu i ld ing, f i l t ra te con t r i r , & suspending agent for water base d r i l l i n g f l u i d .
Yisco->ifier lor upper-hole f lu ids
Bentonite extender
Selective f locculant to remove d r i l l ed solids from mud
S tab i l i t y & f i l t r a t e control of high temperature d r i l l i n g f l u ids
Thinner & f i l t r a t e control for water base d r i l l i n g f lu ids
corrosion inh ib i to r & oxygen scavenger
Oxygen scavenger
Weighting agent
A lka l in i t y control
Thinner & water loss control
Removing hardness (calcium)
ATTACHMENT E
I I ENVIROMENTAL REPORT
AND
AIR QUALITY REVIEW REPORT !
FOR COASTAL MANAGEMENT CONSISTENCY DETERMINATION
GULF OF MEXICO
VIOSCA KNOLL AREA PLOCK #861 (OCS-G-5782)
JULY 13, 1983
SUBMITTED TO:
JIM PARKER
SOHIO PETROLEUM COMPANY
3635 AMBASSADOR CAFFERY
LAFAYETTE, LOUISIANA 70506
(318-981-9483)
Prepared by:
JOHN E. CHANCE & ASSOCIATES, INC.
Regulatory and Environmental Division
Project #83-8079
I . i Table of Contents
ENVIRONMENTAL REPORT J
r •
| | \ \ " p a9 e
T. Title PageK." I i
Table of Contents i i
List of Figures iv
List of Tables v
I I . Description of the Proposed Action 1
A. Travel Modes, Routes, and Frequencies 3
B. Support Base and New Personnel 4
C. New Support Fac i l i t ies 5
D. New or Unusual Technology 5
E. Location of the Proposed Ac t i v i t i es 5
I I I . Description of the Affected Environment and
Impacts 6
A. Physical and Environmental 6
1. Commercial Fishing 6
2. Shipping 15
3. Recreation 15
4. Cultural Resources 16
5. Ecological ly Sensitive Features 16
i i
i
Table of Contents (Contd.)
Page
il 6. Exist ing Pipelines and Cables , 17
7. Other Mineral Uses 17
8. Ocean Dumping 18
9. Endangered or Threatened Species 18
B. Sodo-Economic Impacts 19
IV. Unavoidable Adverse Impacts 22
V. References 25
Appendix 1—Coastal Zone Management
Consistency Determination 27
AIR QUALITY REVIEW
1. T i t l e Page 29
I . General Information 30
I I . Findings of A1r Quality Review 30
I I I . Total Emissions at Rlg/Pl- t form 30
IV. Total Supply & Crew Boat Emissions 30
V. Total Helicopter Emissions 31
VI. Transportation Services Data 31
v i i . Factors Used 1n Calculations 32
VIII. Methodology 32
IX. References 32
i i i
LIST OF FIGURES r 1
I | FIGURE I PAGE
1 — V1c.1n1ty Map of Viosca Knoll Area Block #861. . . ! 2 2 — Fishing A c t i v i t y and the Growth of the 011 and
Gas Industry 1n the Gulf of Mexico 14
i v
I
I
LIST OF TABLES
I T A B L E ' PAGE
1— -Commercially Important Fish and Shel l f ish
In the General Lease Area 9
2 — Check L is t of Commercial * Sport Fishes
of The Northern Gulf of Mexico 11
3 — Federally L is ted Endangered or Threatened
Species 1n Louisiana and Mississippi 20
V
I I . Description of the Proposed Action
This report addresses the activity proposed by Sohio Petroleum Company
for Viosca Knoll Area Block #861 (OCS-G-5782). The approximate location of
the activity is presented in Figure I , a general vicinity map of the Outer
Continental Shelf (OCS) lease areas off the coast of Louisiana.
It is anticipated that a semi-submersible rig, the NEW ERA, will be
moved on location and five (5) exploratory wells will be drilled. The
wells will be referred to as A, B, C, D, and E and their proposed surface
locations are listed below. Additional information regarding the specific
activites proposed by Sohio for this block are included in the attached
Plan of Exploration.
WELL NUMBERS SURFACE LOCATIONS
VIOSCA KNOLL A 4350'FWL 7775'FNL 7075'TVD
P 800*FWL 4900'FSL 7075'TVD
C 3200'FWL 800'FSL 8075'TVD
D 7600'FWL 1800'FSL 7575'TVD
E 5200'FWL 2575'FNL 7575'TVD
1
ro
VIOSCA KNOLL
JOHN E. CHANCE 8 ASSOC., INC
VICINITY M A P
4 0 m i
3
. J
The proposed activities will be carried out by Sohio Petroleum
Company with a guarantee of che following:
1. the1best available and safest technologies will be utilized
throughout the project. This includes meeting all applicable v..
requirements for equipment types, general project layout, safety
systems, equipment and monitoring systems.
2. All operations will be covered by M.M.S. approvea Oil Spill
Contingency Plan.
3. All applicable Federal, State, and local requirements regarding
air emissions, water quality, and discharge for the proposed
activities, as well as any other permit conditions, will be
complied with.
A. Travel Modes, Routes, and Frequencies
Sohio Petroleum Company will operate out of the'r service base
facilities established in Venice, Louisiana. Sohio Petroleum Company
anticipates using one (I) helicopter, one (1) workboat, and one (1)
crew boat to support the Viosca Knoll #861 activity.
The helicopter will travel to the location ten (10) times per
week, the crew boat will travel to the locatior seven time? per week
and the work boat will travel to the location four time' per week.
I t 1s anticipated that the transportation vessels will utilize the
3
I i
most direct route from the Venice, Louisiana service base. Because a
vessel, supporting the Block #861 exploration activity, as outlined In
the Plan of Exploration for Viosca Knoll #861, may be scheduled for
othe|- jstops 1n the" area, the exact routr* for each vessel'on each
particular trip cannot be predetermined. K .
i
B. Support Base and New Personnel
Sohio Petroleum Company w i l l u t i l i z e support base f a c i l i t i e s
established in Venice, Lou1s1an* The Venice, Louisiana base 1s
approximately fo r ty -e igh t (48) miles from the exploration ac t i v i t y s i t e .
Because hel icopter ?nd marine f a c i l i t i e s are currently available at
the service base and are presently and continuously manned, no additional
onshore employment 1s expected to be generated as a result of these
a c t i v i t i e s .
The I n i t i a l OCS Soc1o-Econom1c Data Base Report for the service base
f a c i l i t i e s u t i l i z e d by Sohio Petroleum Company w i l l be prepared for
submission pursuant to the specif ic parameters to be established by the
DOI/MMS and scheduled to be issued at a la ter date.
C. New Support Fac i l I t t es
The proposed exploration ac t i v i t i es for Viosca Knoll #86i w i l l not
u t i l i z i n g any new or unusual technology that may af fect coastal waters.
E. Location of the Proposed Ac t i v i t i es
Viosca Knoll Area #861 1s located approximately for ty-e ight (48) miles
southeast of Venice, Louisiana. Figure 1 presents v isual ly the location of
the block in re lat ion to the Louisiana coast, as well as the geographic
re lat ionship between the Viosca Knoll Area and the other OCS lease are s.
support f a c i l i t i e s .
D. New or Unusual Technology
The exploration ac t i v i t ies for Viosca Knoll #861 w i l l not warrant
• . J . ' < ..
I ! I . DESCRIPTION OF THE AFFECTED ENVIRONMENT AND IMPACTS
A. [Physical and Environmental i
I I 1 1 . Commercial Fishing
t
Commercial f i sh ing has t rad i t i ona l l y provided an important economic
base for a majority of the Gulf 's coastal communities. In 1982 the Gulf
coastal states landed 2.3 b i l l i o n pounds of f ish products representing a
t h i r d of the nation's t o t a l , valued at over $600 m i l l i o n . The f ive
commercial f isheries of the greatest economic importance are the shrimp,
menhaden, oyster, indust r ia l bottom f i s h , and crab f i sher ies .
In 1982, Gulf fishermen landed over 209.9 mi l l ion pounds of shrimp
representing 75% of the nation's total and valued at over $425 m i l l i on .
The northern Gulf shrimp fishery 1s comprised mainly of three species; the
brown shrimp (Penaeus aztecus) , the white shrimp (P. set i ferus) and the
pink shrimp (P, duorarum). The smaller brown shrimp represent
approximately 60% of the shrimp taken, the pink 10%, and the white shrimp
account for B majority of the remainder. Three other species, the rock
shr imp, royal reds, and the seabobs, are also taken commercially in the
northern Gulf but together comprise less then 4% of the tota l shrimp
land ings. Most shrimp are taken by tra 1 and are estuarine dependent 1n
t h a t they require estuaries during some stage of thei r l i f e cycles. Mature
shrimp leave the estuary for the open Gulf where they spawn (release eggs).
The eggs and subsequent larval stages c i rcu la te freely in the currents of
6
the OCS and can be found 1n v i r t u a l l y a l l OCS waters. Young juveni les then
enter the estuary to feed, mature and repeat the cycle.
r i
The .proposed petroleum ac t i v i t i es 1n Viosca Knoll Area.Block #861 are I
expected|to have no Impact on the harvest of brown or white shrimp since
Viosca Knoll Area Block* #861 Is beyond the outer l im i t s of the harvest area
for these species as depicted by USDI REIS 1981 visual #4.
The Gulf oyster f ishery provided over 40% of the oysters landed
nationally 1n 1982 tota l ing 24.2 mi l l ion pounds of meat worth over 33
mil l ion do l la rs . Most Gulf oysters are taken by oyster trawls 1n estuarine
and coastal waters within 5 miles : f shore; therefore, the proposed
act iv i t ies In Viosca Knoll Area Block #861 w*l l have l i t t l e or no Impact
upon this marine species.
In 1981 the Gulf States also landed 37.4 m i l l i on pounds of blue crabs
(Callanectes sapiens) valued at over $8 m i l l i on . Most were captured 1n
"pots" (baited traps) 1n shallow estuarine or near shore waters. B l je
crabs are also caught using * t ro t l 1 res M (shallow, mult ibalted l ines) and
bottom trawls. These crabs are estuarine dependent with planktonic eggs
and larval stages.
The f isher ies for oysters and blue crabs are unl ikely to be
s igni f icant ly affected by exploration ac t i v i t i es 1n th is block as 1t 1s
offshore of the coastal and estuarine waters 1n which these f isher ies
operate.
7
•Table 1 presents a 11st of commercially Important shel l f ish found 1n
t h i s area of tho Gul f .
r
j iThe menhaden*.or "Pogy" fishery is the nation's second most valuable
f i shery accounting fo r 1.2 b i l l i o n pounds, valued at $47 mi l l ion or roughly
half* of the total 1981 f ish poundage landed in the U. S. Spurred by a 55%
Increase 1n menhaden landings from the Gulf coast states the U. S. had a
record setting menhaden catch 1n 1982. Gulf landings were 1.9 b i l l i o n
pounds worth over $72 m i l l i on . Four species are said to comprise the
menhaden fishery but the Gulf menhaden (Brevoortia patronus)accounts for
most of the catch. Menhaden are p-ocessed Into f i sh meal, f i sh o i l , and
f i s h solubles for Industr ia l use. Menhaden are estuarine dependent with
planktonic eggs.
The ac t iv i t ies as proposed are unl ikely to have any adverse af fect on
the moihaden f ish ing as Viosca Knoll Area Block #861 Hes outside the
"Pr incipal Menhaden Harvest Area" (USDI REiS 1981, visual #4).
Industrial bottomflshes make up a large f ishery 1n the Gulf. Within
t h i s group are fishes taken on or very near the bottom by con»nerc1al
t rawlers . Some of thr species taken include cat f ishes, Hounders,
wh i t ings , weakfishes, croakers, grunts, and drums (see species checkl ist
Table 2).
This block 1s not within the "Pr inc ip le Industr ial Bottomflsh Harvest
Area," therefore the only adverse af fects associated with th is proposal
8
TABLE 1 COMMERCIALLY IMPORTANT SHELLFISH
OF THE GULF OF MEXICO
(JOMMON NAME ~_ ,
4HRIMP:
Brown Shrimp
White Shrimp
P1nk Shrimp
Seabob Shrimp
Royal Red Shrimp
SCIENTIFIC NAME
Penaeus set i ferus
P. aztecus
P. duorarum
Xiphopeneus kroyeri
Hymerropenaeus tropical is
HARVEST METHOD
BT
BT
BT
BT
BT
Hard Blue Crab Callanectes sapiens CT.BT.TL
Oysters Crassostria sp OT.TG
BT Bottom Trawl
CT Baited Crab Trap
OT Oyster Trawl
TG Oyster Tongs
Tl "Trot ! ine"
9
! I
would be these on any pl'anktonlc eggs or larval forms of some of the
species wi th in th is f ishery by the release of d r i l l i n g mud and f l u i d Into
the water column. i
'I Industr ial Bottomflsh are usually sold as Industr ial fishmeal and f i sh
solubles but th is group also produces some foodf lsh, net food, and FPC
(f ish protein concentrate).
Other species for which s ign i f icant commercial f isheries exist include
striped mullet groupers, snappers, and flounders. Mullet are taken near
shore and in estuarine wate , -n seine nets, g i l l nets, and cast nets.
Snappers and groupers are taken by hook and l ine throughout the OCS
wherever natural ly occurring or manmade benthic features provide su f f i c ien t
habitat. Flounders are also caught cor-merclally by hook and Une and are
taken seasonally 1n very shallow estuarine water by gig (barb!ess spear).
Weakfishes, croakers, catf ishes, ard drums are also taken commercially by
hook and Une as foodfishes (refer to Table 2 ) .
Overall , fishermen have benefited from the growth of the petroleum
Industry In the OCS water of the Gulf of Mexico. While technological
Improvements have enabled commercial fishermen to increase the volume of
landings, by-products of the deve1opment of the petroleum Industry have
also had a posi t ive Impact on f i sh ing . Because OCS petroleum development
1s dependent on extensive marine vessel u t i l i z a t i o n , harbors and ports have
been improved, por*; access waterways have been expanded and Improved, and
the ava i lab i l i t y and qual i ty of marine vessel maintenance and repair
10
TABLE 2
A CHECK LIST OF COMMERCIAL 4 SPORT FISHES r
OF THE NORTHERN GULF OF MEXICO
i COMMON NAME SCIENTIFIC NAME HARVEST METHOD
SNAPPERS: Red Snapper Lutjanus campechanus HL VermlHon Snapper Rnompop11 tes aurorupens HL GROUPERS:
Warsaw Garrupa n ig r l ta HL Spotted Jewfish pr omi c r op s 11 a I a r a HL Gag Mycter^perca microlepis HI. Scamp Mycteroperca faicata HL Rock Seabass centropristTs pni iicfelphfca HL.BT St r iped Mullet Mugil cepnaius GN,CN Southern Flounder paraiicnthys lethostoma G,HL,BT Redflsh sciaenopsnpcenata HL Black Drum pogonias cromis HL.BT A t l a n t i c Croaker Micropogon undulatus HL.BT
WHITINGS:
Gu l f Whiting Mentldrrhus l i t t o r a l 1s HL.BT Southern K1ngf1sh nentici r r * 7 7 ^ amencanus HL.BT
WEAKFISHES:
Spotted Sea Trout Cynoscion nebulosus HL ,BT S i l v e r Trout UyhbsciM nothus HL.BT Sand Trout cynoscion arenarius ML.BT Long spine Scorplonflsh pontmus TongispmTs BT
HAKE:
Spotted Hake Urcphycis regius BT Gu l f Hake WbpSycTs c"Trratus BT Sou tne rn Hake uropnycis H o n Planus BT
CATFISHES:
Gaf f topsail Bagre mar'na HL Hardhead tnrfeTclthTs" fe l 1s HL.8T Ocel lated Morray Eel Gymnothorax ocellatus HL.BT B lack f i n Searobin Prlonotus rubTo BT Ladyf lsh pops sau'rJs HL T i l e f i s h Lepholatl 1 us chamaeleontjeeps HL Sheepshead Arch ^rgus~p"rob"atocephalus HL
11
, J
• I • Table 2 (contd.)
MENHADEN:
Gulf 1 Brevoortia patronus . PS Fipescale T Brevoortia gunteri 'PS Ti&effish Lepholatilus chamaeleonticeps HL RcunJd Herring Etrumeus teres MT Round Shad w . Trachurus lathaml i MT Tarpon Tarpon at lant icus HL Ling Racnycentron canadus HL Wahoo Acanthocyoium soianorf HL
TUNAS:
Blackfln Tuna Tunnnus at lant icus PS Yellowfin Tuna Eutnynnus albacares PS L i t t l e Tuna Euthynnus a i ie t teratus PS At lant ic Bumper ChioroscromDrus cnrysurus BT Ponpano Tracninotus carol mus HL King Mackerel Scomberomorus cavalla HL Spanish Mackerel scomoeromorus regal is HL Dolphin(flsh) corypnaena nippurus HL At lant ic Sa i l f i sh istiopnorus americanus HLT Blue Marlin Makaira nigricans ampia HLT White Marlin Tetrapturus albidus HLT Broadbill Swordfish xiphias gladius HLT
SKATES & RAYS:
At lant ic Stingray Dasyatls sabina HL,BT At lant ic Cul tar f lsh Rnmooatos lentlglnosus BT Roundel Skate Raja texana HL,BT
SHARKS:
Bul l Shark Carcharhinus leucas HL •LL Blacktlp carcharninus Mmbatus HL ,LL Hammerhead spnyrna dipiana HL.LL Mako isurus oxyrincnus HL.LL Great White Carcharodon carcharias HL.LL
BT Botton Trawl HL Hook & Line CN Cast Net HLT Hook & Line Troll 1ntj G Gig LL Long Line GN Gill Net PS Purse Seine MT Midwater Trawl
12
1 ' i , J
• •
fac i l i t ies - have Increased* s ign i f i can t l y . These Improvements have
def in i te ly had a posit ive e f fec t on fishermen (Lassl ter , 1980).
i
Sci|enjtif1c studies- examining the ef fect of the petroleum Industry
development on the commercial f ish ing industry have concluded that the Ka ]
presence of offshore d r i l l i n g and production structures has had very
l i t t l e , i f any, negative impact on commercial f ishing in the Gulf. In the
approximately twenty-five (25) years of petroleum industry development 1n
the Gulf, the menhaden harvest o f f the coast of Louisiana has grown from
213,000 metric tons 1n 1955 to a peak of 820,000 metric tons In 1978
(Lasslter, 1980). While f ish ing industry technological Improvements are
primarily responsible for the increase in harvests, th is fact is
par t icu lar ly Important because mehaden depend upon a clean estuarine system
for survival . I t 1s apparent that there has been no s ign i f icant
degradation of the quali ty of Gulf waters since the inception of petroleum
industry a c t i v i t y . This conclusion is v isual ly depicted on Figure 2 , a
comparison of the commercial f ish ing industry ac t i v i t y and the growth of
the petroleum Industry in the Gulf of Mexico in the past approximately
for ty (40) years.
Because the lease area is more than three (3) miles from the coast and
is considered an Outer Continental Area, state f ish ing seasons are not
applicable for the block.
13
2500
'940 45 50 55 60 65 70 75 1979
2. Shipping
I |A designated shipping fairway is located approximately twenty
(20) miles from Viosca j ^ o l l Area Block ^861. I t is unl ikely that the
marine vessels supporting the Block #861 ac t i v i t y w i l l u t i l i z e this
shipping fairway to gain access to the support base, therefore, i t is
un l i ke l y that the marine vessels w i l l have s igni f icant e f fect on fairway
t r a f f i c . The d r i l l i n g r ig and each of the marine vessels w i l l be equipped
w i t h a l l U. S. Coast Guard required navigational safety aids.
3. Recreation
Petroleum platforms in the northern Gulf of Mexico provide
recreat ion for fisherman and scuba divers as well as revenues for the
rap id l y growing coastal recreational f ishing industry. Studies indicate
t h a t the growth of the sport f ishing industry in the central Gulf is the
d i r e c t result of the presence of offshore petroleum platforms. The fact
t h a t these platforms act as a r t i f i c i a l reefs at t ract ing and establishing
aquatic communities including food f i sh sought by recreational and
commercial fisherman is well documented. Ditton and Graofe found that 87%
o f the boats engaging in recreational f ishing in the Houston-Galvestor. area
d id so at oi l and gas platforms. I t is l i ke l y that the years of ben i f i c ia l
use provided by the establishment of an offshore platform and
associated reef community would easi ly of fset the negative effects
15
encountered by recreatio/iai .fishermen during the few months 1n which
exploration and drilling activities are being conducted. .1
Frequently, offshore>1gs and platforms serve as navigation oolnts
for small commercial and recreational marine c r a f t . Manned d r i l l i n g r igs
and platforms can also provide a haven for small c ra f t operators forced to
abandon the i r vessels during storms or following boat accidents. The
ins ta l la t ion and use of navigational aids, l i fesaving equipment, and other
safety requirements pursuant to Coast Gucrd regulations are standard
procedure for d r i l l i n g r igs and marine vessels u t i l i zed by Sohio Petroleum
Company.
4. Cultural Resources
Visual No. 11 from the EIS fo r Lease Sales 72, 74, & 79 Indicates that
Viosca Knoll Area Block #861 1s not located 1n the Prehistoric or
Historical Archeological Zone.
5 Ecological ly Sensitive Features
Viosca Knoll #861 is located approximately fo r ty (40) miles east of
Pass a Loutre Wi ld l i f e Management Area and for ty- three miles from the Delta
National W i l d l i f e Refuge. There are no other ecological ly sensit ive areas
near Viosca Knoll Area Block #861.
The Venice, Louisiana support base, which w i l l be u t i l i zed as
16
operations base ifor the Block #861 exploration activity, 1s located across
the Mississippi River from the Delta National Wildlife Refuge and
approximately five (5) miles northwest of the Pass.A Loutre Wildlife
Management Area- (1). S. Department of the Interior, DEIS Lease Sale 62 and
62A, Visual No. 3). In general, I f a l l activit ies are executed as planned,
encountering no unusual circumstances, the environmentaliv sensitive areas
w i l l not be affected.
6. Existing Pipelines and Cables
The shallow hazards survey performed for Sohio Petroleum Company by
John E . Chance and Associates, Inc . , Included as an attachment to the plan,
Indicates near surface gases with no potentially high-,-essure accumulation
In Block #861; however, evidence of biogenic gas accumulation was observed
1n Block #861. Surface faults were Identified, of which Sohio is aware and
has taken necessary precautionary measures. There are no known pipelines
or cables present 1n Viosca Knoll Block #861.
7. Other Mineral Uses
There are no other known mineral resources located 1n or near Viosca
Knoll Area Block #861.
17
8. Ocean.Dumping
The major sources of ocean dumping re la ted ' to OCS petroleum exploration
act iv i ty are d r i l l i n g f l u i d s , or "muds," and d r i l l cut t ings. Af ter the
exploratory d r i l l i n g 1n Block #861 is completed, Sohio Petroleum Company
does ant ic ipate dumping the i r excess water-based d r i l l i n g f l u i d s ,
approximately 1400 bbls. I f any oil-based mud is used in the Block #861
d r i l l i ng opert lons, 1t w i l l be returned to the vendor.
Dr i l l cut t ings are brought up by the d r i l l i n g mud and range in size
frcm grains of sand to pebbles. These cuttings are separated and s i f t e d ,
and then disposed of overboard. Treated domestic wastes, formation waters,
and d r i l l waters w i l l also be disposed of at the proposed d r i l l i n g s i t e .
There wi l l be no intentional discharge of any o i l y or hazardous materials
1n violation of D. 0. I . or E. P. A. regulations.
9. Endangered or Threatened Species
Five species of marine tu r t l es occur in the Gulf of Mexico: loggerhead,
green, At lant ic Ridley, hawksbi l l , and leatherback. A l l of these species
are designated as "Endangered" or "Threatened" by the Convention on
International Trade 1n Endangered Species of Wild Fauna and Flora (U. S.
Department of the I n te r i o r , EIS Lease Sale 58), as well as by the United
States Government (U. S. Department of the In te r i o r , Region IV Endangered
Species Notebook).
18
The se l . f l r r , blue, humpback, and sperm whales were c lassi f ied as
"Endangered" on December 2, 1970 (Federal Register, December 2, 1970).
Tihese species occur 1n the central and western Gulf of Mexico, but the
5|jpulat1on status an'! migration patterns of these species are not known,
he lease area 1s located approximately fo r t y - f i ve miles southeast of the
Grown Pelican feeding and nesting habitat (U. S. Department of I n t e r i o r ,
DEIS Lease Sale 72, 74, A 79, Visual No. 11), however 1t 1s unl ikely that
the offshore or onshore ac t i v i t i es related to the Viosca Knoll Area Block
#861 exploratory d r i l l i n g w1"l have any effect on the previously named
species.
Table 3 presents the federal ly l i s t ed species tnat are endangered or
threatened 1n and offshore Louisiana and Mississippi and their general
geographic d i s t r i bu t i on .
B. Sodo-Economlc Impacts
In accordance with DOI/MMS guidelines (OS-7-01), dated November 20,
1980, th* i n i t i a l OCS Data Base Report w i l l be developed for submission on
or before the prescribed due date. Subsequent Environmental Reports
provided by Sohio Petroleum Company w i i l address th is data and related
ac t iv i ty impacts.
19
TABLE 3
ttate(s)
Louisiana a Mississippi
Louisiana A Mississippi Louisiana A Mississippi
Louisiana A Mississippi
Louisiana A Mississippi
Louisiana A Mississippi
Louisiana
FEDERALLY LISTED ENDANGERED OR THREATENED SPECIES IN LOUISIANA AND MISSISSIPPI
(E = Endangered; T • Threatened)
Mammals General
Designation Distribution
Panther, Florida (Fells concolor coryi) E
Whaie, blue (Balaenoptera musculus) E
Whaie, finback (Balaenoptera physalus) E
Whaie, numpback (Megaptera novaeangliae) E
Whaie, sei (Balaenoptera boreal 1s) E
Whaie, sperm (Physeter catodon) E
Wolf, red (Canis rufus) E
Fntlre state
Coastal waters
Coastal waters
Coastal waters
Coastal waters C >astal waters
Cameron and Calcasieu Parishes
Fish
Mississippi Darter, Bayou (Etheostama T Southwest—Bayou (Nothonotus) ru""runO Pierre drainage
Birds
Mississippi
Louisiana
Louisiana & Mississippi
Louisiana A Mississippi
Louisiana A Mississippi
Louisiana A Mississippi
Louisiana A Mississippi
Crane, Mississippi sandhi l l (Grus canadensis pull a)
Curlew, ESKimdHTTOmenlus boreal ls)
Eagie, oaid (Hallaeetus leucocephalusl
Falcon, Arctic peregrjne (Falco peregrinus tundrlus
Pencan, brown occidental 1s)
pelecanus
Waroier, Banman's (Vermivora bacnman11)
Woodpecker, I vory -b i l led (Campephilus p r inc ipa l i s )
J?ckson County
Entire state
Entire state
South
Coast
Entire state
Entire state
20
•' , J
Federally Listed Endangered or Threatened Species 1n Louisiana and Mississippi (cont'd)
i : State(s)
Louisiana A Mississippi
Birds (cont 'd)
Woodpecker, red-cockaded (Plcoldes («r>endrocopos)
. borealls)
General Designation Distribution
1 — a —
t Entire state except Mississippi River Delta
Reptiles
Louisiana A Mississippi
L ^ulsiana A Ki«s1ss1pp1
Mississippi
Louisiana A Mississippi
Louisiana I Mississippi
Louisiana A Mississippi
Louisiana A Mississippi
Louisiana A Mississippi
A l l i ga to r , American (Al l igator mlssissippiensis) T
A l l i ga to r , American (Al l igator mlssissippiensis) T*
Snake,Eastern indigo (Drymarchon corals couperi) T
I u r t i e , Kemp's ( A t l a n r i T T -
r id ley (Lepidochelys E kempii)
Turtle, green (Chelonia mydas) E
Turtle, hawksbill (Eretmochelys imbricata) E
Turtle, leatherback (Denmochelys coriacea) E
Turtle, loggerhead (Caretta caretta) E
Inland
Coastal areas
South
Coastal waters
Coastal waters
Coastal waters
Coastal waters
Coastal waters
•Al l igator populations 1n Calcasieu, Cameron, Iber ia , Jefferson, Lafourche, Plaquemines, St . Bernard, St. Charles, St. Mary, St. Tammany, Terrebonne, and Vermilion Parishes are l i s t e d a« Threatened due to Simi lar i ty of Appearance. Regulated harvest in these parishes 1s permitted under State laws, since these populations are b io logical ly neither Endangered nor Threatened.
SOURCE: United State- Dept. I n te r io r Fish and w i l d l i f e Service Region 4 Endangered Species Notebook
21
IV. UNAVOIDABLE ADVERSE IMPACTS • I •
• The greatest threat to the natural environment 1s caused by Inadequate
operational safeguards that may cause or contribute to an o i l s p i l l or well
piowout. These accidents can be greatly reduced 1n number by u t i l i z i n g
trained operational personnel and employing lall available safety and «
pol lut ion control systems. These measures are standard operating procedure
fo r Sohio Petroleum Company. Sohio Petroleum Company has an approved Oil
Sp i l l Contingency Plan.
The unavoidable adverse Impacts that w i l l occur as a resul t of the
exploratory d r i l l i n g and discharging w i l l be few 1n number and temporary 1n
nature. The primary adverse Impacts Include a local ized degradation of
water and a i r qual i ty in the v i c i n i t y of the d r i l l i n g s i t e , the potential
obstruction to commercial and recreational f ishing vessels, and the
disruption and/or k l l l i r , ^ of benthic and/or pelagic organisms during
locat ion of the d r i l l i n g r i g and during disposal of muds, cut t ings, and
domestic wastes and sewage.
Discharging from the d r i l l s i te 1s inevitable during OCS operations,
par t i cu la r ly during exploration. Any materials that may contain o i l or
other hazardous mater ia ls, and therefore would have a much greater adverse
Impact on the environment, w i l l not be discharged In tent iona l ly . Any
discharging w i l l be done pursuant to a l l D.O.I, and E.P.A. regulat ions.
The discharges to be disposed of overboard as a resul t of the exploration
a c t i v i t y wi l l Include domestic waste and sewage that Is treated on the r i g
22
before discharging!, formation waters, d r i l l cut t ings, and excess
water-based mud. The discharging w i l l result in an Increase in water
tu rb l jd i ty , burial of benthic organisms, and possible ,tox1c effects on
reduction in photosynthetic ac t i v i t y and plankton populations can also be
expected as a resu l t of discharging. I t is expected, however, that the
pelagic and benthic organisms w i l l regenerate almost Immediately af ter
discharging i f the ef fects are minimal and Intermittent as expected.
Offshore a c t i v i t i e s generate a small but s ign i f icant amount of a i r
pol lu tants due to the emissions of diesel engines; therefore, the
deter iorat ion of a i r qual i ty is unavoidable in an OCS operation area. In
most Instances, these emissions e f fec t only the Immediate exploration
a c t i v i t y site and are rapidly dissipated by the atmosphere depending upon
c l ima t i c conditions. An A1r Quality Review Report has been perfomed for
v iosca Knoll #861 and 1s included as an attachment to th is Environmental
Report. Comnercial and recreational f ish ing would be affected by OCS
development, but pr imar i ly 1n terms of inconvenience and Interference.
Although the unavoidable adverse impacts could include some smothering of
s h e l l f i s h , snagging of trawl nets, reduction of area presently used for
unrestr icted f i sh i ng , and minima" f i n f i s h k i l l i n g , commercial f ishing
a c t i v i t i e s would not be s ign i f icant ly ef fected, except 1n the unl ikely
event of an oi l s p i l l . An o i l s p i l l would result in serious economic
losses due to the contamination of commercial f ish species over a large
a rea .
immediate v i c i n i t y of the d r i l l i n g r i g . A
2?
There 1s a remote poss ib i l i t y that offshore areas of h i s t o r i ca l ,
cu l tu ra l , or b io logical signif icance could be damaged or destroyed by OCS
exploration operations. Visual No. 4 from the U. S. Department of the
Inter|ldr EIS fo r Lease] Sales 72, 74, and 79 Indicates that no
archeological, c u l t u r a l , or h is tor ic areas are 1n the v i c i n i t y of Viosca K. j
Knoll #861. Add i t i ona l l y , Sohio Petroleum Company w i l l make every e f f o r t
to avoid disturbing any h i s t o r i c a l l y , cu l t u ra l l y , or b io log ica l ly
s igni f icant feature.
2 k
REFERENCES i
\
Acadiana P ro f i l e , "Scuba Divers Active in Atchafalaya Basin." May 1976, pp.4-5 J
Adk ins, I Gerald, "A Study of the Blue Crab Fishery in Louisiana, Louisiana Wi l d l i f e ai\g! Fisheries Commission; Oyster,, Water Bottoms and Seafood'Division; Technical Bu l le t in #3, Dec, 1972
Ahrenholz, Dean W., "Recruitment and Exploitat ion of Gulf Menhaden, Brevoorita patronus," National Marine Fisheries Service; Fisheries Bu l le t in : Vol. / 9 , Mo. 2, 1981
Dugas, R., Gu i l l o ry , V. , and Fischer, M., "Oil R1gs and Offshore Sport ~1sh1ng 1n Louisiana," Fisheries Magazine, Nov.-Dec. 1979, p.8
Geyer, Richard A . , "Impacts of Changes of Gulf Coast Estuaries," Transactions: North American Wi l d l i f e and Natural Resources Conference; p. 335-348; 1972
Hoese, H. D. and Moore, R. H., Fishes of the Gulf of Mexico; Texas, Louisiana, and adjacent Waters. College Stat ion, Texas; T^xas A & M University Press, 1977.
Lassi ter , Ronald C , "The Georges Bank: Fish and Fuel , " Ninth Annual Sea Grant Lecture, MIT, Cambridge, Massachusetts, October 23, 1980.
Louisiana Wi ld l i f e and Fisheries Commission, Cooperative Gulf of Mexico Estuarine Inventory and Study: Louisiana, 1977
Macklin, J . G., and Hopkins, S. H. , "Studies on Oyster Mortal i ty in Relation to Natural Environments and Oi l f ie lds of Louisiana," Publications of the Ins t i tu te of Marine Science, Vo l . 7, 1962, p. 1-1*1
Marum, James P., "Significance of Dist r ibut ion Patterns of Planktonic Copopods in Louisiana Coastal Waters and Relationships to Oil D r i l l i n g and Production," Rice Univ. Studies; The Offshore Ecology Investigation
Vo l . 65, Nos. 4 * 5 , F a l l , 1979, p. 355
Murray, Currents and Circulat ion 1n the Coastal Waters of Louisiana, 1976
OECS Corporation, Environmental Report - OECS Project #264 Lafayette, Louisiana
Perry, Al l ison, "Fish of Timbalier Bay and Offshore Louisiana Environments Collected by Trawling," Rice Univ. Studies; The Offshore Invest igat ion; Vo l . 65, Nos. 4 & 5, F a l l , 1979, p. 537
Ragan, James G. et a l , "Bottomfishes of the Continental Shelf Off Louisiana," Professional Paper Series (Biology), Nichol ls State Universi ty, 1978
25
« /
St. Armant, Lyle S., "Impacts of Oil on the Gulf Coast," Transactions: North American Wildlife and Natural Resourses Conference; p. 206-215; 1971 ,
The farina Newsletter, "Oil Rigs Enhance Recreational Fishing in the GulfjOf Mexico." Nov.-Dec, Vol. 11, No. 6, p. 6, 1980 •
Transco, Map of South Louisiana and Continental Shelf Showing Natural Gas Pipelines, 1980y#
U. S. Department of Commerce, NOAA. Fisheries of the United States: Current Fisheries Statistic No. 8200; Fisheries of the United States, 1981. National Marine Fisheries Service, April, 1982
U. S. Department of Commerce, NOAA. Federal Register, Vol, 46, No. 97, Washington, D. C, May 20, 1981
U. S. Department of the Interior, NOAA. Environmental Guide for The Gulf Coast, Environmental Data Service, National Climatic Center, Ashville, N. C. , 1972
U. 5. Department ot the Interior, BLM. Final Environnv" tal Impact Statement; OCS Sale 36. 3 Vol. Washington, D. C, 197<*
U. S. Department of the Interior, BLM. Final Environmental Impact Statement; OCS Sales 62 and 62A. Washington, D. C. , 1976
U. S. Department of the Interior, PLM. Final Environmental Impact Statement; OCS Sale 58. ? Yols. Washington, D. C. , 1979
U. S. Department of the Interior, FWS. Environmental Planning for Offshore Oil and Gas Vol. 5: Regional Status Reports—Part 3 (The Gulf Coast). Washington, D. C. . 1977
U. S. Department of the Interior, FWS. Environmental Planning for Offshore Oil and Gas Vol, 3: Effects on Living Resources Sand Habitats, Washington, D. C. , 1977
U. S. Department of the Interior, FWS. Region IV Endangered Species Notebook. Atlanta, Georgia, 1976 (periodically updated)
U. S. Department of the Interior, FWS. Federal Register, Vol. 35, No. 233, Washington, D. C. , December 2, 1970
26
APPENDIX 1
COASTAL 70NE MANAGEMENT
CONSISTENCY CERTIFICATE
27
• I COASTAL 70NE MANAGEMENT
CONSISTENCY CERTIFICATION
< i
j I , Exploration
Type of Plan
Viosca Knoll Area Block #861
Area and Block
OCS-G-5782
Lease Number
The proposed ac t i v i t i es described 1n detai l 1n this Plan comply with Louisiana's and Mississippi 's approved Coastal Management Program and w i l l be conducted 1n a manner consistent with such Program.
Sohio Petroleum Company
Lessee or Operator
28
* * * * * * *
AIR QUALITY REVIEW For
Sohio Petroleum Company 3639 Ambassador Caffery
Lafayette, Louisiana 70506
Submitted To J1m Parker
July 12, 1983
Prepared by: ,10HN E. CHANCE & ASSOCIATES, INC.
regulatory and Environmental Division Lafayette, Louisiana Project No. 83-8079
29
PROJECTED AIR EMISSION SCHEDULE FOR EXPLORATION PROJECT
I . General Information
Location of F a c i l i t y - Viosca Knoll Area Block #861 Name of Rig/Platform - New Fra Owner/Operator - Sohio Petroleum Company Address - 3936 Ambassador Caffery Parkway
Lafayette, Louisiana Contact Person - Jim Parker
Project Start Date - August 15, 1983 Project End Date - Felruary 16, 1984 Total Well Footage to be Dr i l led - 37,000 Distance Offshore - 35 miles
I I . Findings of A i r Quality Review
As per DOI-MMS regulations th is f a c i l i t y 1s exempt from further a i r qual i ty review as 1t has been determined that I t s operation w i l l not have a s ign i f icant adverse environmental impact on a i r qua l i t y .
I I I . Total Emissions at Rig/Platform
Allowable Projected Emission Emitted Emissions Emissions Status Substance ( tons/yr) ( tons/yr) (OK/NG)
CO 36379.6 7.5 OK S02 1165.5 1.1 OK NOX 1165.5 41.2 OK VOC 1165.5 2.04 OK TSP 1165.5 .07 OK
IV. Total Supply A Crew Boat Emissions at Venice, Louisiana
Emitt * Projected Status Suhst ce (s) Emissions (OK/NG)
CO 3.6 OK S02 * * NOX 25. f OK VOC 1.4 OK TSP * *
30
V. Total Helicopter Emissions at Venice, Louisiana
Emitted Projected Status Substance (s) Emissions (OK/NG)
->• • ,-4
CO 1.5 OK S62 .05 1 OK NOX .1 OK VOC .1 OK TSP .07 OK
VI. Transportation Service? Data
Supply Boats (3000 hp*
Port - Venice, Louisiana Waiting Time - 4 hrs./day Trips Per Week - 4
Crew Boats (2500 hp)
Port - Venire, Louisiana Waiting Time - 1 nrs. Trips Per Week - 7
Helicopters
Base - Venice, Louisiana Trips Per Week - 10
Other (Explain) - N/A
+The EPA does not provide S02 and TSP emission fa:tors for boats nor does i t provide TSP f 5ct/>rs for drilling.
• I •
VII . Factors Used In Calculations
Emission Factors for Power Generation
Emitted Drilling Substance(s) (lb/hp-hr)
CO K> .0042 S02 .0019 NOX .028 YOC .00095 TSP *
Emlsson Factors for Helicopters and Boats
Emitted Helicopters Boats Substance(s) (lb/eng1ne-LT0) (lb/gal)
CO 5.7 .0598 S02 .18 * NOX .57 .4196 VOC .52 .0226 TSP .25 *
Other Factors Drilling Power Generation - 60 hp-hr/ft Fuel Consumption by Boats - .0959 gal/KW-hr
VIII . Methodology
R1g/Platform - horsepower-hour method Boats - horsepower-hour method Helicopters - landing/takeoff (LTO) cycle method
IX. References
Drilling -EPA-450/3-77-026 (June 1977) - "Atmospheric Emissions From Offshore 011 Development and Production", pp. 81-92.
Boats and Helicopters - EPA Report AP-42 - "Compilation of Air Pollutant Emission Factors", 3rd edition, (August 1977), pp. 116, 125, 127.
* The EPA does not provide S02 and TSP emission factors for boats nor ooes 1t provide TSP emission factors for dr i l l ing.
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