Raf In i t ia l Derolopi-ent OporaUoui Coordination July 7 t 1986, for

i s t (LOCD)

block* 201 *«J0 202, Skip Steal Arc*. Thin DOCD lfwtatfi* th* wtl*ltloe prof 0666 for Platfom A and four veil*.

In attaordaaoo with SO CTI 310.34, thia DOCD la hereby la aow easing cvwuldorod for epproeal.

oubslttad

Your oootrol am ostion and oorro

and should ba referenced la ynur cocaainl* ntowjornini thla DOCD.

3L,

5Ino*rely yours,

(Ori;. P:d.) A. Donald Giroir

D. J . FjUTfrejOlS Re levjoJL Suponrieor Field Oparations

boo: Laaao OCS-Q 5557 (OPS-3-2) (FILE ROOM) aao OCS-G 5536 (OPS-3-2) (PILE ROOM)

OPS-3-4 w/Publio lafo. Copy of tha DOCD (PUBLIC RECORDS)

LTHorbst:ock x o7/11/88xdoodc<

Office of Program Services

JUL 2 2 1988 Information Services

Section

Sat

Sandefer Offshore Operating Co.

June 27, 1988

Nr. Daniel J . Bourgeois Regional Supervisor Office of Field Operations U. S. Department of the Interior Minerals Managenent Service 1201 Elmwood Park Boulevard New Orleans, Louisiana 70123-2394

RE: Development and Production Plan OCS-G 5557/5558, Ship Shoal Area, Blocks 201/202 Offshore Louisiana

Gentlemen:

In accordance with the provisions of Title 30 CFR 250.34-1, Sandefer Offshore Operating Company (Sandefer), hereby submits for vour review and approval ten (10) copies of a Development and Production Plan for leases OCS-G 5557/5558 Ship Shoal Area, Blocks 201 and 202. Offshore Louisiana. Five (5) copies are "Proprietary Information" and five (5) copies are "Public Information".

Sandefer anticipates commencing activities under this proposed DOCD on December 1, 1988, with the Installation of Platform "A\

Should additional Information be required, please contact our Regulatory Agent, Ms. Jodie Connor at (713) 558-0607.

Sincerely,

SANDEFER OFFSHORE OPERATING COMPANY

Charles H. Odom

CH0:JAC:CH

enclosures docdss201

Pint Dry T o w , 1001 F«w*n. Sw* 1300, KcMWon. TtftM 77001. 713/651 1551

SANOEFER OFFSHORE OPERATING CONPANY BLOCKS 201 ANT 202. SHI? SHOAL AREA

OCS-G 5557/5558 OFFSHORE, LOUISIANA

In compliance with Title 30 CFR 250.34 and Notice to Lessees 84-1 dated February 10, 1984, the following Information 1s submitted for the Develop­ment and Production Plan (DPP) for lease; OCS-G 5557/5558, Ship Shoal Area, Blocks 201/202.

1. Description

Sandefar Offshore Operating Company Is the designated perator of Ship Shoal Blocks 201 and 202, OCS-G 5557 and 5558.

Under this DPP, Sandefer proposes to Install a 4-plle, 5-slot structure to be designated as Platform "A" to be Installed over the surface locations of Well No. 1 (OCS-G 5557) and Wells No. 1 and 2 (S/T 11) (OCS-G 5558) located 4547' FNL & 813' FWL of Block 202.

OCS-G 5557. Well No. 1 Is currently drilling. Lease OCS-G 5558 Wells No. I and 2 (S/T 11) have been drilled and temporarily abandoned. Well No. 3 (OCS-G 5558) will be drilled under an SLproved Exploration Plan.

Operations Include platform Installation, tie-back and completion operations on the four (4) wells and Installation of a pipeline.

A typical jackup rig will be utilized to perform drilling and completion opeiations. Drip pans, curbs, drains and sumps are designed Into the rig for pollution control. All operations will be in accordance with Subpart C of Title 30 CFR 250.

2. Schedule of Activity

Sandefer's activities under this proposed DPP for Blocks 201/20? will commence December 1, 1988, and extend until April I, 1989 when production Is expected to commence.

The following schedule details the chronological order of the proposed events leading to full production.

Activity Approximate Start-Up Date

A. Commence design and construction July 1, 1988 of platform jacket

B. Drill & temporarily abandon August 1, 1988 Well No. 3 (under Exploration Plan)

C. Commence Installation of platform December 1, 1988 jacket. Tie back It complete 4 wells

Activity ApproxInttt Start-Up Date

D. Commence Installation of deck I February 1, 1989 production facilities

E. Commence Installation of pipeline

F. Hook up and commence production

Narch 1, 1989

April 1, 1989

3. Location of the Block. Platfom and Facilities

Ship Shoal Area, Blocks 201/232 are located approximately 102 miles south of Intracoastal City. Louisiana. Water depth Is approximately 110 feet. A map showing tne location of Blocks 201/202 relative to the shoreline Is attached as Exhibit B.

Sandefer will utilize an existing onshore base located In Intracoas­tal City, Louisiana. This will serve as port of debarkation for supplies and crews. This base Is capable of providing the services necessary for completion and production activities. It has 24-hour service, a radio tower with a phone patch, dock space, equipment and supply storage base, drinking and drill water, etc. It 1s estimated that one (1) crew boat and one (1) supply boat will each make seven (7) round trips per week, and a helicopter will make seven (7) round trips per week during completion operations. During the production

fhase, the supply boat will make one (1 round trip per week and he helicopter will make one (1) round rip per week. The boat's travel time to Blocks 201/202 Is approx mately 10-12 hours. The activities associated with Ship Shoal Blocks 201/202 should not re­sult In any Increase In the size and number of onshore support and storage facilities or land and personnel requirements.

4. Geological and Geophysical Data

A structure map 1s enclosed as Exhibit C. Information regarding geological hazards and surface locations relative to anomalies was included In the Plan of Exploration for Ship Shoal Block 202.

The estimated life of reserves for Blocks 201/202 Is 15 years.

Production from the platfom 1s expected to be 1500 B0P/D and 10 MMCF/D.

5. Pollution Prevention Information

Pollution prevention control measures will be in accordance with Subpart C of Title 30 CFR. Sandefer has on file with the MMS an approved 011 Spill Contingency Plan for the Gulf of Mexico. In the event of a spill, this Plan will be actuated. Sandefer Is a member of Clean Gulf Associates which provides spill containment equipment and clean-up equipment at service bases located on the Gulf Coasts

of Louisiana, Texas, Alabama, Florida and Mississippi. If a spill should occur from the proposed operations, the equipment located at Intracoastal City, Louisiana would be utilized first, with additional equipment moved 1n from other bases. If necessary. Fast boat response with oil boom, skimmers, pump and storage tanks would require approximately 8-10 hours, including preparation time. A heavy equipment system would require approximately 24-30 hours, Including six hours preparation time.

Enclosed are copies of the following Informitlon:

Exhibit

A - Platform Drawing B - Vicinity Map & Location Plat C - Structure Map

Also enclosed are the associated Environmental Report, Air Quality Review and Consistency Certification for the State of Louisiana.

MO

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TYPICAL

CNO VIEW

PRODUCTION PLATFORM 10 M t '

EXHIBIT "A"

SANDEFER OFFSHORE OPERATING CO.

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0C5- G-Q593 \ y « X

SANOEFER I I »

20!

V.

OCS-G 5557 11 SL: 4S47' FNL t 813' FWL Of SS 202

ML:

OCS-G-5557

OCS-G-5556

SANDEFER

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i i

202

OCS-G 5553 ( t i l MlH) SL: 4547' FNL S 813' FHL of SS 202

+J2S/T91 : #3 ' -1

Sandefer Offshore Co SHIP SHOAL

BLKS. 201 4V 202

OCS-G-5558

P.O. Box 218753 Houston, Texas 77218 713-558-0607

PROJECTED AIR EMISSION SCHEDULE FOR DEVELOPMENT/PRODUCTION PROJECT

GENERAL INFORMATION

Location of Facility:

Distance Offshore: Name of Platfom: Operator:

Contact Person: Date Production Will Begin

Ship Shoal 201/202 OCS-G 5557/5558 90 niles Platfom "A" Sandefer Offshore Operating Co 1001 Fannin, Suite 2300 Houston, Texas 77002 Mr. B. R. Suggs April 1, 1989

MINOR SOURCES (OFFSHORE)*

Emitted Substance

CO SO 2

NOx VOC TSP

Projected Emissions (tons/year) T 5 # ^ 1.040 .033

.125

.096

.046

* Tables 3.2.1-3, 3.2.3-1 and 2.1-1, "Compilation of Air Factors", Third Edition, EPA Report AP-42, August, 197

llutant Emission

** The production emissions are the maximum possible values for one year. Most emissions will occur during Installation operations.

ONSHORE SOURCES

These should be about the same as minor sources unless new facilities are Installed at the onshore base. No additional facilities are required or planned at this time.

Projected A1r Emissions Sandefer Offshore Operating Company Ship Shoal 201/202

Page two

EMISSION EXEMPTION DETERMINATION

2/3 2/3 For CO: E - 3400 - 3400(90) - 68.282 tons/year For NOx, VOC, TSP I SO : E - 33.30 - 33.3(90) - 299/ tons/year

2

PREDICTED PROOUCTION ACTIVITY AT PLATFORM

Oil Production Platform "A" - 1500 BOP/D Gas Production Platform "A" - 10 MMCF/D Date Production Will Begin - April 1, 1989

TRANSPORTATION SERVICES

Supply Boat (3000 hp) Trips Per Week Turing Production -Trips Per Week During Completion -

Crew Boat (2500 hp) Trips Per Week During Completion -

Helicopter Trips Per Week During Production • Trips Per Week During Completion -

METHODOLOGY

Platform: Horsepower - hour method Boats: Horsepower - hour method Helicopters: Landing/Takeoff (LTO) cycle method

REFERENCES

Production - EPA 450/3-77-026 (June. 1977) - "Atmospheric Emission: from Offshore Oil and Gas Development and Production", pp. 81-116.

Boats - EPA Report AP-42 - "Compilation of Air Pollutant Emission Factors", 3rd Edition, (August, 1977), pp. 116, 125 and 127

FIN01N6S OF AIR QUALITY REVIEW

As per DOI/MMS regulations, this facility 1s exempt from further air quality review as 1t has been determined that i t : operations will not hivt a significant adverse environmental Impact on air quality.

ENVIRONMENTAL REPORT

FEDERAL LEASES OCS-6 5557/5558

SHIP SHOAL AREA, BLOCKS 201/202

OFFSHORE LOUISIANA

THE FOLLOWING ENVIRONMENTAL REPORT WAS PREPARED BY J. CONNOR CONSULTING FOR SANDEFER OFFSHORE OPERATING COMPANY FOR COASTAL ZONE CONSISTENCY DETERMINATION BY THE STATE OF LOUISIANA ON OPERATIONS PROPOSED TO BE CONDUCTED IN THE INITIAL DEVELOPMENT AND PROOUCTION PLAN FOR LEASES OCS-G 5557/5558. FOR INQUIRIES REGARDING THIS REPORT PLEASE CONTACT:

SANDEFER OFFSHORE OPERATING COMPANY

1001 FANNIN STREET, SUITE 2225

HOUSTON, TEXAS 77002

ATTENTION: C. H. OOOM

JUNE, 1988

TABLE OF CONTENTS

TITLE PAGE 1

TABLE OF CONTENTS 11

I. DESCRIPTION OF PROPOSED ACTION 1

A. DESCRIPTION OF PROPOSED TRAVEL MODES, ROUTES AND 1 FREQUENCY

B. ONSHORE SUPPORT SYSTEMS 1 C. NEW OR UNUSUAL TECHNOLOGY 1 D. VICINITY MAP 1 E. PROPOSED MEANS TO TRANSPORT OIL AND GAS TO SHORE 2

ROUTES, QUANTITIES

II. DESCRIPTION OF AFFECTED ENVIRONMENT 2

A. COMMERCIAL FISHING 2 B. SHIPPING 2 C. PLEASURE BOATING, SPORT FISHING AND RECREATION 3 D. POTENTIAL OR KNOWN CULTURAL RESOURCES 3 E. ECOLOGICALLY SENSITIVE FEATURES 4 F. PIPELINES AND CABLES 4 G. OTHER MINERAL USES 4 H. OCEAN DUMPING 4 I. ENDANGERED OR THREATENED SPECIES AND CRITICAL 4

HABITAT

III. UNAVOIDABLE ADVERSE ENVIRONMENTAL EFFECTS 6

A. WATER QUALITY 6 B. EFFECTS ON MARINE ORGANISMS 6 C. WETLANDS AND BEACH 6 D. AIR QUALITY 6 E. COMMERCIAL FISHING 6 F. SHIP NAVIGATION 7 G. CULTURAL RESOURCES 7 H. RECREATION AND AESTHETIC VALUES 7

IV. SUMMARY 8

REFERENCES 9

LIST OF ATTACHMENTS

NO. 1 - VICINITY MAP

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DESCRIPTION OF PROPOSED ACTION

Sandefer Offshore Operating Conpany plans to conduct development activities for Ship Shoal Area, Blocks 201/202, OCS-G 5557/5558.

The Development and Production Plan for Ship Shoal Blocks 201/202 provides for the installation of a 4-pile, 5-slot structure to be designated as Platform "AH, tie-back and completion operations on four (4) wells, and pipeline Installation. All wells will be produced from Platform *A" In Block 202.

Activities under this DPP will commence December 1, 1988, with the Installation of Platform "A". Proposed commencement date for placing Ship Shoal Blocks 201/202 on production will be April 1, 1989.

A. DESCRIPTION OF PROPOSED TRAVEL MODES, ROUTES AND FREQUENCY

Boats and helicopters will be dispatched from support bases located In Intracoastal City, Louisiana. The boats will normally move to Block 202 via the most direct route from Intracoastal City, Louisiana. Following Is an estimate of boat and helicopter trips to the proposed operations on Ship Shoal Block 202.

B. ONSHORE SUPPORT BASE

The proposed activities will utilize a support base located at Intracoastal City, Louisiana. This base provides 24-hour service, a radio tower with phone patch, dock space, office space, parking lot, equipment and supply storage space, drinking and drill water, etc. These proposed development activities will help to maintain this base at its present level of activity. No expansion of the physical facilities or the creation of new jobs is expected to result from the work planned in conjunction with Blocks 201/202.

C. NEW OR UNUSUAL TECHNOLOGY

No new techniques or unusual technology will be required for these operations.

D. VICINITY MAP

Ship Shoal Block: 201/202 are located approximately 102 miles south of Intracoastal City, Louisiana in a water depth of approximately

Completion Operations

7 trips per week 7 trips per week

Production Operations

1 trip per week 1 trip per week

E. PROPOSEO MEANS TO TRANSPORT OIL ANO GAS TO SHORE, ROUTES, QUANTITIES

Hydrocarbons will be transported froa Ship Shoal Block 202 proposed Platfom "A" via a proposed pipeline from Platfom "A" to Conoco's Platfom "G" in Ship Shoal Block 198.

DESCRIPTION OF AFFECTED ENVIRONMENT

A. COMMERCIAL FISHING

In the Gulf of Mexico, the shrimp fishery Is the most economically Important. Nine spedes contribute to the Gulf's shrimp fishery. Brown, white and pink shrimp are the three most important commercial species. Brown shrimp are centered In the northwestern Gulf while white shrimp are centered on the mud and sand bottoms off the coast of Louisiana.

The Gulf menhaden fishery constitutes the largest fishery in terns of pounds landed. Gulf menhaden occur in the shallow waters of the northcentral Gulf from eastern Florida to eastern Texas with about 93% of this fishing effort occurring within 10 miles of shore.

The industrial bottomfish trawl fishery exists in the nearshore waters of the northcentral Gulf. Generally, the following fishes contribute 95%-98% of the trawl fishery catch: croaker, spot, sand seatrout, silver seatrout, silvereel, catfish, and longspine porgy. Croaker, the largest component of the catch, prefer a mud bottom and are generally not found 1n depths exceeding 60 fathoms.

Approximately 50 species of food finfish are harvested in the Gulf. Some of the more important Include croaker, snappers, groupers, white mullet, red and black drum, spotted and silver seatrout, Spanish mackerel, spot, pompano, flounders, crevalle, Gulf klngfish, sheepshead, and king mackerel. The majority of food finfish are caught in coastal waters with the exception of such fishes as the snappers, groupers, mackerels, tunas, and billfish.

Support vessels servicing the platform site will be passing through high marine roductlvlty areas; however, they should not Interfere with Louisiana's commercial fisheries.

B. SHIPPING

Ship Shoal Blocks 201/202 are clear of all shipping fairways and anchorage areas. Platfom "A", the drilling rig and each of the marine vessels will be equipped with all U. S. Coast Guard required navigational safety aids, there should be little or no Impact on shipping resulting from the proposed operations.

C. PLEASURE BOATING, SPORT FISHING AND RECREATION

The northern Gulf of Mexico coastal zone Is one of the major recreational regions of the United States, particularly in connection with marine fishing and beach-related activities. The shorefronts along the Gulf coasts of Alabama. Mississippi, Louisiana, and Texas offer a diversity of natural and developed landscapes and seascapes. The coastal beaches, barrier Islands, estuarine bays and sounds, river deltas, and tidal marshes are extensively and Intensively utilized for recreational activity by residents of the Gulf south and tourists from thoughout the nation, as well as from foreign countries.

The two major recreational areas most directly associated with offshore leasing and potentially affected by it are the offshore marine environment and the coastal shorefront of the adjoining states. The only major recreational activity occurring on the OCS Is offshore marine recreational fishing. Studies, reports, and conference proceedings published by MMS and others have documented a substantial recreational fishery including scuba diving directly associated with oil and gas production platforms (USDI, MMS, 1985a). The recreational fishing associated with oil and gas structures stems from their function as high profile artificial fishing reefs.

Hunting is a popular recreational activity in the Gulf toast Region. A variety of water fowl are taken throughout the coastal marshes. There are state wildlife refuges and numerous state and federal biologically sensitive land areas onshore from the area of operation.

With the exception of Grand Isle and vicinity and a stretch of beach area n Cameron Parish. (Peveto/Constance/Ocean View Beaches, Holly Beach, Hackberry Beach) Louisiana has very limited beach area suitable for recreation. Most of it 1s very narrow, of poor recreational quality and generally Inaccessible by automobile, some of the highest quality beach areas in coastal Louisiana are found along the barrier islands chain off Terrebonne Parish.

D. POTENTIAL OR KNOWN CULTURAL RESOURCES

Ship Sh ial Blocks 201/202 lie Inside the Cultural Resource Sensi­tivity Jemarcation Line (USDI, 1979, Visual 1), and therefore, fall In an area where cultural resources are likely to be found. An archaeological survey was reguired for Ship Shoal Blocks 201/202. Sandefer Offshore Operating Company agrees that If any site, structure, or object of historical archaeological significance should be discovered during any operation, tne findings will Imme­diately reported to the Regional Director and every reasonable effort will be made to preserve and protect the cultural resource from damage until the Regional Director has given direction as to Its preservation.

3

E. ECOLOGICALLY SENSITIVE FEATURES

There are no areas of particular concem within Ship Shoal 201/202. However, there are several areas of environmental concern that l ie onshore from the lease site.

Clean Gulf Associates has prepared and distributed to members, maps of the coastline of the Gulf of Mexico listing ivlronaentally sensitive areas onshore and near-shore which might be affected by an accidental hydrocarbon release.

Since thr entire coastline of the State of Louisiana can be considered environmentally sensitive In varying degrees, there 1s no benefit seen in listing all the major bays and wildlife refuges along the co:st. No adverse Impacts are anticipated.

F. PIPELINES ANO CABLES

Block 201 - A 30" gas pipeline crosses the northwest corner of the block.

Block 202 - Clear of all pipelines and cables.

All pipelines and cables will be avoided during operations.

G. OTHER MINERAL USES

The activities proposed for Ship Shoal Blocks 201/202 will have no direct or Indirect Impact on other mineral uses.

H. OCEAN DUMPING

Ocean dumping Is prohibited In this area.

I. ENDANGERED OR THREATENED SPECIES AND CRITICAL HABITAT

Five federally listed endangered whale species occur within the Central Gulf. These Include fin, humpback, right, sei , and sperm whales. Generally, these large cetaceans Inhabit the continental slope and deep oceanic waters, occasionally they are sighted nearshore (Schmidly, 1981). Sperm whales have been lighted near the Louisiana Delta and offshore Brownsville (Fritts et a l . , 1983).

Four federally listed endangered turtle spedes (Kemp's ridley, green, hawksbill, and leatherback turtles) and one threatened species (loggerhead turtle) occur In the Gulf of Mexico.

4

The American alligator occurs generally throughout the Central Gulf coastal areas. Tne alligator is listed as endangered throughout Its range except in the coastal areas of Florida and Texas where It 1s listed as threatened and 1n Louisiana where It 1s listed as "threatened by similarity of appearance".

Arctic peregrine falcons migrate along the eastern coast of Florida, the Florida Keys, and the Gulf coast of Texas. Some peregrine falcons overwinter along the Gulf coastal areas.

The endangered esklmo curlew's northward migration corridor crosses the Louisiana and Texas coastal areas.

Brown Pelican's occur along the coast of Cameron Parish, Louisiana. Bald eagles Inhabit several Gulf coastal counties. A small population of nonmigratory Mississippi sandhill cranes Inhabits an area In Jackson County, Mississippi.

These spedes may be affected by the development of coastal lands and/or the occurrence of oil spills which may affect the spedes directly or through their food sources. Since the proposed activities Include no plans for the development of the coastal lands, the Impact on endangered or threatened species 1s primarily based on the occurrence of oil spills.

On pages 111 -5 through 111-72 of the Final Environmental Impact Statement for OCS Sale No. 47 there is a discussion of the factors for estimating the significance of oil spills and their impacts. The Impacts on various endangered and threatened species will depend on the nature of the spill, weather conditions, proximity of spill to spedes, tolerance for oil of species, and the response time and effectiveness of the oil spill cleanup and containment services. Given these variables, the impact on the various endangered or threatened spedes vr'M vary from little or no effect to serious.

The experience of oil and gas exploration In the Gulf of Mexico Indicate that there is a small probability of an occurrence of an oil spill. The Draft Environmental Impact Statement (DEIS) for OCS Sale A-62 and 62 indicates on page 71 that "the aggregate 15 year spill rate 1s .0009 percent of tne total volume produced". Table 7, page 73, of the DEIS Indicates that there has been only 30 incidents of oil spills for this 15 year period. The probability remains low because of the level of technology used by the oil and gas Industry to Insure safe and responsible operations.

Sandefer Offshore Operating Company as a prudent operator, will take the necessary measures to reduce the probability of oil spills.

Sandefer's p. posed development operations on Blocks 201/202 should pose no threat to any endangered or threatened spedes.

III. UNAVOIDABLE ADVERSE ENVIRONMENTAL EFFECTS

A. WATER QUALITY

Drilling and development activities will temporarily reduce water quality adjacent to the location. This will Increase turbidity In a plume down-current from the work site. Released waters and a minor oil spill could also contribute to water quality degradation.

B. EFFECTS ON MARINE ORGANISMS

Some organisms will be killed and some will be temporarily functionally Impaired as a result of development operations. The most affected groups will be plankton and benthos Immediately around the platform. Damage will be both mechanical and toxicological. These Impacts are considered to be localized, short term and reversible at the population level.

An oil spill could affect a broad spectrum of marine organisms. However, most effects would be localized and short term. Any effects on mammals and turtles would be significant.

C. WETLANDS AND BEACH

In the unlikely event of a spill occurring and reaching shore, organisms in wetland and beach habitats could be killed or functionally impaired. Human community disruption could also occur. Although all such effects would be localized, any effects on endangered spedes and/or critical habitats would be significant.

D. AIR QUALITY The air quality at the lease site will be degraded temporarily during operations, but should return to normal once operations are measurably completed. Offshore activities probably will not affect onshore air quality. Air quality at the onshore base will be only Insignificantly reduced by onshore activities. Any such effect will be temporary.

E. COMMERCIAL FISHING

Of the various types of fishing gear In use in the OCS areas, trawls have the greatest chance for operational conflicts with oil and gas activities. Losses may, however, be compensated under the Fishermen's Contingency Fund or other legal routes. Trawl nets can be snagged on underwater stubs causing damage or loss of the nets. In addition, It 1s conceivable that snags could damage underwater production equipment of pipelines causing a spill of oil or gas. Because safety equipment Is Installed, which shuts In production

6-

when a loss of pressure occurs, the likelihood of a major spill resulting thereby Is considered very small. Less frequently, large objects which were lost overboard froa petroleum Industry boats, pipeline lay barges, and platforms are caught by fishing gear resulting In damage to the gear and/or Its catch of fish; however, occurrence of this type of incident Is low. Also, commercial fishermen would probably not harvest fish In the area of an oil spill, as spilled oil could coat or contaminate commercial fish spedes rendering them unmarketable. Other unavoidable adverse Impacts Include Toss of fish space caused by Installation of unburied pipelines, rigs, platforms, or by other OCS-related structures. There may be some localized competition for shore facilities. These effects and any effect that the development operations will have on stocks of Important species are considered minor.

F. SHIP NAVIGATION Very little interference can be expected between the marine vessels utilized during development operations and ships that use established fairways. However, at night and during rough weather, fog. and heavy seas, ships not using established fairways could collide with the platform.

G. CULTURAL RESOURCES There is only a small probability that an unknown cultural resource exists in the lease area.

H. RECREATION AND AESTHETIC VALUE The platform and marine vessels may represent an obstacle to some sport fishermen, but such an effect Is expected to be negligible and not permanent.

Even though existing regulations and orders prohibit Indiscriminate littering of the marine evnironment with trash, offshore oil and gas operations Involving men, machines, equipment, and supplies Is bound to result In some littering of the ocean. Human nature and accidents associated with offshore operations will contribute some flotable debris to the ocean environment which will eventually come ashore on major recreational beaches.

The effects that normal operations or a minor oil spill would have on any fish stocks Important to sport fishermen are also considered to be negligible.

7

A Minor oil spill and/or non-petroleum floating debris could foul beaches Inshore of the lease area. The fouling of the beaches would be an aesthetic detriment that could atwersely affect recreation. Any effects on beach recreation could adversely affect tourism and, consequently, the local economy.

IV. SUMMARY

The proposed activity will be carried out and completed with the guarantee of the following Hems.

A. The best avalable and safest technologies will be utilized throughout the project. This Includes meeting all applicable requirements for equipment types, general project layout, safety systems, and equipment and monitoring systems.

B. All operations are coverd by a Minerals Management Service approved Oil Spill Contingency Plan.

C. All applicable Federal. State and Local requirements regarding air emission and water quality and discharqe for the proposed activities, as well as any other permit conditions, will be complied with.

D. The proposed activities described In detail in the Development and Production Plan will comply with Louisiana's Coastal Management Program and will be conducted in a manner consistent with sucn Programs.

REFERENCCS

1. Final Environmental Impact State—nt, Proposed 011 and Gas Lease Sales 94, 98 and 102, Gulf of Hexico KS Region, OCS EIS, NNS 84-0057.

2. Final Environmental Impact Statement. Proposed 011 and Gas Lease Sales 94 , 98 and 102, Gulf of Mexico OCS Region, OCS EIS, MMS 84-0057, vlsua'.s.

3. Fisheries of the United States. 1985, April, 1986.

4. The Ecology of Petroleum Platforms In the Northwestern Gulf of Mexico: Community Profile, Bureau of Land Management Open File Report 82-03,

JUly, 198Z.

5. Environmental Report West Cameron Area Blocks 516 and 524. March, 1987.

6. BLM Draft Environmental Impact Statement, OCS 011 and Gas Lease Sales A-62 and 62. —

7. BLM Final Environmental Impact Statement. OCS Oil and Gas Lease Sales A-oz and 67!

8. BLM Final Environmental Impact Statement, OCS 011 and Gas Lease Sale 47.

9. Minerals Management Service, 1983. Final Regional Environmental Impact Statement, Gulf or Mexico. U. S. Department of the Interior.

10. Final Environmental Impact Statement, Proposed 011 and Gas Lease Sales 110 and 112, Gulf of Mexico OCS Region, OCS EIS, MMS 86-0087.

11. Final Environmental Impact Statement. Proposed 011 and Gas Lease Sales 110 and 112, Gulf of Mexico OCS RegTon, OCS EIS, MMS 86-0087, visuals.

12. Final Environmental Impact Statement, Proposed Oil and Gas Lease Sales 113, 115 and 116, Gulf of Mexico OCS Region, OCS EIS, MMS 87-0077.

-9-

COASTAL ZONE MANAGEMENT

CONSISTENCY CERTIFICATION

DEVELOPMENT AND PROOUCTION PLAN

SHIP SHOAL AREA, BLOCKS 201/202

OCS-G 5557/5558

The proposed activities described in detail In this Plan comply with Louisiana's approved Coastal Zone Management Program and will be conducted 1n a manner consistent with such Program.

Sandefer Offshore Operating Company Lessee or Operator

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