In Reply Refer To: RP-2-1 W 2 /

ChawpUn Petrolwm Ccjtpany A t ten t ion : Mr. J . R. Carter , J r . Four Al len Center 1400 Smith Street. Suite 1500 Houston, Texas 77002

Gentl eaten:

Reference 1$ Kite to your I n i t i a l Plan of Exploration end Environmental Report received Uovember 15, 1985. aneroid November 22, 1985, for Lease OCS 7769, Block 198, South TlmbalUr Area. This plen Includes the ac t i v i t i e s propose.! fo r Wells A, C, F, G, ami H.

In accordance with 30 CFR 250.34, revised December 13, 1979, and our l e t t e r dated vamtary 29, 1979, t h i s plan has been determined t r be complete as of November 27, 1985, and Is now being considered for approval.

Your plan control number 1s H-2349 and should be referenced In your communica­t i o n and correspondence concerning th is p lan.

Sincerely yours,

Drifinal Sped: Douglas 1. MdKftsh Acting Regional Supervisor lules and Production

bcc: Lease XS-G 7769 (OPS-3-2) (FILE ROOM) L P P S ^ w/Public I n fo . Copy of the plan and ER (PUBLIC RECORDS ROOM) D(P6~~~~

HJTo'bert : rbr: 11/25/85 Disk 3D

Pratm™ Sottas

NOV 2 a 1985

Information Services Section

c champion Unofl Pane Coaxyaton

November 19, 1985

Minerals Management Service Imperial Office Building 3301 N. Causeway Blvd. Meta i r ie , Louisiana 70002 !!0VC^ 1S35

wt tc ra r sieve:

At tent ion: Mr. Mike Tolbert POE Section

Re: Champlin Petroleum Company Pl<in of Exploration OCS-G 7769 South Timbalier Block 198 Offshore Louisiana

Dear Mr. Tolbert:

In accordance with your request of November 18, 1985, Champlin hereby deletes from the Plan of Explorat ion, three exploratory locations. This Is done in an e f fo r t to abide by the new policy of the MMS of including a maximum of f ive locat ions per OCS block. The deleted locations are as fo l lows:

PROPOSED WELL DESIGNATION PROPOSED SURFACE LOCATION

A l l f i ve of the other locat ions remain as o r i g ina l l y permitted.

I f any additional information is needed, please advise.

Yours very t ru ly ,

B D F

4800* FWL and 1560* FSL 5900' FWL and 4200' FSL 8000' FWL and 2060* FSL

ABS:lc

NOV

P L A N O F EXPLORATION

SOUTH TIMBALIER A R E A

B L O C K I9S

O C S - G 7769

CHAMPLIN PETROLEUM COMPANY

Four Allen Center, Suite 1JOO

Houston, Texas 77902

November 13, 1919

TABLE OF CONTENTS

Section

Designated Company Contact I

Proposed Type and Sequence of Activities and

Approximate Locations of the Exploratory Wells II

Structure Map Ill

Shallow Drilling Hazards and

Archaeological Assessment IV

Description of Drilling Vessel V

List of Drilling Mud Additives VI

Oil Spill Continj ncy Plan VII

Projected Air Emissions VIII

Onshore Support Base Facility IX

Environmental Report X

Summary Statement Page 27

Coastal Zone Management Consistency Statement . . . . Page 28

NOTE: Enclosed in the Plan of Exploration are proprietary papers. These papers have been stamped CONFIDENTIAL and are deleted from the copies being submitted for Public Information.

SECTION I

DESIGNATED COMPANY C O N T A C T

Any inquiries to this proposed Plan of Exploration should be directed tot

J . R. Carter, Jr . Regional Manager of kegulatory *t Unit izat ion Champlin Petroleum Company Four Allen Center I <»00 Smith Street, Suite 1509 Houston, Texas 77002

Telephone: (713) 650-2552

SECTION n

PROPOSED T Y P E AND SEQUENCE OF ACTIVITIES

AND APPROXIMATE LOCATIONS OF THE EXPLORATORY WELLS

Cham pi in Petroleum Company was awarded the South Timbalier Block 198 (OCS-C 7769)

lease in the May 22, 1985. Central Gulf of Mexico Oil and Lease Offering (Sale 98).

Champlin holds a 5Q-* interest in the block and Sun Exploration * Production Company

and Pogo Production Company each have 25** working interest.

Seismic work has been performed over the block and results are addressed in the Shallow

Drilling Hazards Assessment section of this Plan.

Eight (8) exploratory wells are planned to test the geologic features in the block. Drilling

sequence and proposed surface location of these exploratory wells are as follows:

WELL DRILLING SOUTH TIMBALIER BLOCK 198 PROPOSED SEQUENCE WELL NO. SURFACE LOCATION

1 A 6009 FWL, 2375 FSL 2 B 0809 FWL, 1560 FSL 3 C 0099 FWL, 3999 FSL 0 D 5999 FWL, 0299 FSL 5 E 7699 FWL, 3099 FSL 6 F 8999 FWL, 2969 FSL 7 G 6599 FWL, 690 FSL 8 H 3099 FWL, 599 FSL

All wells wi l l be drilled as straight holes to a TVD of 16,599 feet. The required drilling

time, including testing and abandonment, is approximately 199 days per well.

Onshore support operations should commence approximately seven (7) days prior to

drilling operations. Pending approval of the applicable Federal and State Permits, ;t is

anticipated that Well No. A wil l be spudded on or about February I , 1986, with

exploratory operations on the block completed within the f irst quarter of 1988. probably

about March I .

L O U I S I A N A COAST

• f s r : i w r * 3 " i • • (> • t i T -> » » n MI> U J • • CfT C1MC»CN 4*11 HJ* f t I A S T c*Mt»o«i «»e« C A S T : » « I C I : H m i u . "

t » M . L i C » A H l . • m » >>L ANO » i i ION I ' l l ! • • « • • 4 l ( 1 ' c " M « » » H l j u « » 0 » « C » I N . " l M M

S O U ' - W « * $ H .S lANO * * I A (n*rl>. 4««M-»*f C j G C N f S L l N O » » { »

j - o r s i s . i > D i M i i i i . » n i J » i S » i » J - 0 » i A » I A S~i« S H O A L AACA I I . I H l « I f S O U - - T W * A . £ » . s.rro.,»rr.t:K"c< •-•••»•-s.e •>•> .n> -• 1ST C l » . ' A • • € » • t S » 3 ( - ' A » ( n i u » s u m S C o * » "ASS A A | A S Q j » H PASS AA |A IV. ' * 1*1 l : | i l l l t a -MA N »ASS 1N0 • { • t r o d SOJIO « » H H A N »AS$ t i n I I . " j ' l : > < • ! -: > « . ' i . i . » * • « • S g A i i b i i ^ j ^ A j l ^ t M i j M j y j ^ ^ ^

6A ,

BLOCK 195

r-CD

Y* - 67, 869 54

BLOCK 198

OCS G 7769

" 1 I uJ l i

CT)

CD

O

o

CD

r- - 81, 83. 08

I Hereby Certify T*at The Above

Proposed Locations Are Correct.

ROBERT U ELLIS Reg *o 4C06

VOTC Coord/rotes Shown Ar*^.3,uisiono 'Lambent Projection, • )2ont.

w-CLL * L o v c 4 2.20t,04S Ol - rt.*36 oa' 2t° tt'orort' 90a*i ' 10 139

• 2 , 206.B*S Ot -90,27 1.01' t f t t Stan' 90**1 23 t40"

e 2 .20t.44t 02 -ry, tn oi 21* 2T '02 OSS" 90* *l' 2T9ti"

0 I , t o r . s t t cv -Tr.tSl Ot' 2t "2*03 r*r 90* * 1' II 113"

r 2.209, 84t 02 -T$,«l< Of 2t*2t 3TT2T' 90**0' 32 iTt"

r 2, 2 1 0 ,04t 02 -rt.rri ot' 2 t ' 2 t 4 4 •»•»/" 90**0'** Tt2~

0 2.20$ ,3*6 02' -II ,2H Of 29*29 30 OT* ' 90**1 04 aT2~

rt 2.210.-*S 02' -tl.SSl o f to*20' 2t trr' 90*40 *3 403'

SW F

PROPOSED M i N t f t A i DEVELOPMENT

CHAMPLIN PETROLEUM COMPANY

SOUTH

BLOCK 198

T I M B A L I E R A R E A

OFFSHORE LOUISIANA

Sca"e i ' = 4 0 0 0 Or 'oDe- : s .

AQUANAV

• 9 ? "

JOB Ho. 8 5 0 4 3

SECTION in

SECTION IV

SHALLOW DRILLING HAZARDS AND ARCHAEOLOGICAL ASSESSMENT

J O U T H TIMBALIER BLOCK 198

OFFSHORE LOUISIANA

A survey o.' potential hazards was prepared and interpreted by Alpine Ocean Geophysics.

Houston, Texas. The data was obta. ed with a multi-sensor High-Resolution HazarA d

Archeaological Survey over the entire block. The jurvey included a Suboottor i P v ,

299 cubic inch Hamco Water Gun, Side Scan Sonar, Precision Echosounuer and a Marine

Proton Magnetometer. Survey work commenced on August I, 1985 and was completed o.»

August 4, 1985. Water depth in the block varies from 113 feet to 13? feet.

Champlin's geologist has reviewed the Hazard Survey results. Conclusions concerning

individual well locations are sunmarized in the attached letter *» in,icate all proposed

dr i l l sites are clear nf shallow hazards.

Additionally, no archaeological features were seen in the data r-oen'.ed fur this block.

e champ. A

October 31 , ..?35

Mine ra l s Management Service I m p e r i a l Of f i ce B u i l d i n g 3301 North Causeway B l v d . M e t a r i e , Louisiana 70011

Rfc: Hazard C u l t u r a l Survey South Timbalier Blo.-k 19? OCS-C 7"»G9 Offshore Louisiana

Gent le a m

P nigh r e s o l u t i o n geophysical survey was conducted ove** the above captioned b lock f o r purposes o f determining the s a f e t y of d r i l l i n g s i t e s and c u l t u r a l resource evalua.tir i .

Analysis of thene data show no i n d i c a t i o n of d r i l l i n g hazards, shipwrecks, o r submerged p r e h i s t o r i c s i t e s a t t : d r i l l s * v e s l . s t ed below:

Block 198 #A #B #C #D #E

IP #G #H

Yours very t r u l y .

CHAMPLIN PETROLEUM COMPANY

Garnet Hodne D i v i s i o n Explorat ion Gaophyaicist Eastern Div i s ion /Of f shore

SECTION V

Cl -5CRIPTION OF DRILLING RIG

The drilling rig which will be used to drill the wti l i.i South Timbalier Block 198 will be

similar to tne Keyes Offshore Inc. Rig No. 301, a modern canti-lever jack-up rig

approximately three yt irs old. l \ ; equipped with all required safety and pollution control

equipment. An equipment list -.nd specif ication sketches ere attache**.

KEYFS 301

EQUIPMENT LIST

Dr- Ming 'gitz

Fricde a Goloian Design No. L780 - MOD 2 Cant i lever Jack-Up D r i l l i n g Unit , complete w i th the fo l lowing spec i f i ca t ions :

i t ) Hull Dimensions: 180'- 0" length x 175'- 0" width

(b) Water Depth Design C r i t e r i a :

300 f t . - 50 f t . wave; 100 l.nots wind (one minute average) 250 f t . - 54 f t . wave; 100 knots wind (one minute average) 200 U . - 57 f t . wave; 100 knots wind (one minute average)

(c) Cantilever Extension: 40 ft. centerllne rotary frora stern of b & 10 f t . Vansverse movement ach side of barge center l lne .

(d) Living Accomodation* : 50 persons

(e) Capac i t i es :

D r i l l i n g Water 5?.00 b b l . Fresh Water 13-*8 bul . Fuel 011 2481 bb l . Liquid Mud .1874 bfei. Bulk Mud/Cement 841 j cu. f t .

Drawworks:

Mud Pumps:

Auxil iary Pumps:

Continental tmsco Type C-2 Type I I , w i th 1-3/8" d r i l l l i n e , nominal 20,000 f t . depth ra t ing , driven by two (2) 900 MB DC e lec t r i c motors rated 1,000 HP each, with an Elmagco Model 7938 dynamic brakf .

Two (2) Continental tmsco FB 1600 t r i p l e x pumps, rated 1,600 HP; 7" l i ne rs , driven by two (2) 900 MB DC e l e c t r i c motors, wi th 5,000 psi f l u i d end.

Six (6) Mission Magnum 5 x 6 centr i fugal pumps for charging, mixing, •y.d-cleanlno, de sanding and d e s i l t i . i g ,

Derrick:

Substructure:

'1 sting Equipment:

Rotary:

Power Equipment:

A i r Compressors:

BOP and Controls:

Continental Emsco Model ZORO, 147 f t . x 30 f t . base mast, w i th a 1,400,000 l b . gross nominal r a t i ng , designed for a 100 mph wind wi th f u l l pipe setback.

50* x 40' x 25' Substructure, with a 50' x 40* d r i l l f l oo r s t ruc tu re . Maximum d r i l l f l oor loading 1,000,000 l bs .

Continental Emsco RA 52-6 Traveling Block, 500 ton, wi th s ix 52" diameter sheaves grooved for 1-3/8" d r i l l l i n e .

B-j 5500 Dynaplex Hook wi th pos i t ioner , 500 ton.

Continental Emsco Modal LB 500 Swivel, 500 ton .

Continental Emsco Modal T-3750, 37-1/2" Rotary, Independent d r ive wi th a 900 MB OC e lec t r i c motor.

Varco Type Kel ly Bushlng/MPCH Master Bushing Unit fo r 5-1/4" Hex Ke l l y .

Three (3) EMO M012E8 Diesel Engines d r i v ing 1,050 KW continuous, 600 VAC, ABS rated generators.

One Caterp i l la r 3412 Diesel Generator Sat wi th ABS rated 320 KW generator.

Ross H111 SCR Power D is t r i bu t i on System.

Two (2) 100 HP Rotary Compressors, Ingersol l Rand, each rated 400 CFM at 125 p s l .

One (1) Refrigerated A i r Dryer, Ingersol l Rand, 800 CFM.

One ( U Cold-Start Compressor, Ingersol l Rand, 45 CFM, w i th L i s te r Diesel Engine.

One (1) NL Schaffer Spherical Preventer, 21-1/4" bore, 2.000# WP RX-73 flange bottom, H?S service.

One (1) Diverter Spool w i th two (2) 6" remote operated valves.

One (1) Cameron 13-5/8" Typa "D" Annular Preventer, 5,000# Wn studded top and 10,0001 WP hub bottom connection, H2S service.

12. Mud Processing:

13. Dr i l l String:

One (1) Cameron Type "U" Single Preventer, 10,0001 WP with 5" pipe rams and two 10,000# WP 3-1/16" flanged outlets, clamp hub connections, HjS, service.

One (1) Cameron Type *U" Oouble Preventer, 10,0001 WP with b" pipe rains and blind rams, and four 3-1/16" 10 0001 WP flanged outlets, clamp hub connections, HyS service.

One (1) Choke Manifold, 10,0001 WP, 3-1/16" valves, wltr two adjustable chokes, provision for super-choke, H2S service.

One (1) Mud-Gas Separator.

BOP Control Unit, Ross Hil l Controls Model C180-2E25-2AG, twelve 15 gal. accumulators, two air pumps, one 20 HP triplex pump, 374 gal. reservoir, and seven station control manifold with remote e lectr ic operated station.

Branat Dual Shale Shaker, double screen, two 3 HP motors.

One (1) Brandt Dual Mud-Cleaner and Desil ter, with sixteen 4" cones.

One (1) Pioneer SR-8-6 Desander with eight 6" cones.

Three (3) Brandt Mud Mixers, 20 HP, 1,750 rpm.

One (1) Oegasser Unit, Wellco Modal 6200.

Seven (7) Den.co Mud Guns.

Two (2) Mission Mud Hoppers.

One (1) Seventy Cubic Foot Bulk Mud Surge Tank.

12,000 f t . - 5" 00 Grade "E" Dri l l Pipe with 5" XH Connections.

6,000 f t . - 5" 00 Grade "G" Dri l l Pipe with 5" XH Connections.

Thirty (30) Joints - 5" OD Hevl-Wate Dr i l l Pipe with 5" X-Hole Connections.

Six (6) - 6-1/2" 00 Dri l l Collars with 4-1/2" H-90 Connections.

Twenty-One (21) - 8" 00 Dr i l l Collars with 6-5/8" H-90 Connections.

One (1) EZ Torque Unit for make up ana break out of BHA.

Necessary X-Over Subs. Kelly Subs, and Bi t Subs for Contractor's dr i l l string.

14. Dr i l l Tools; One (1) Hex Kelly - 5-1/4" x 2-13/16" ID, One (1) Foster Model 77 Kelly Spinner, Elevators and Sl ips for d r i l l collars and 5" dr i l l pipe.

One ( I ) Pipe Spinner, Wtatherford-LamL 'Spinner-Hawk'.

Rotary Tongs, Type DB, 3-1/2" - 14-3/8".

One (1) Gray Inside BOP. 5" X-Hole Connections.

Two (2) Hydril 4-1/4" Kellyguards. 10,000# WP, 5" X-Hole Connections.

One (1) Omsco 5-1/4" Kelly Cock, S.OOOf WP, 6-5/8" API Reg. L. H. Connections.

15. Wireline Unit: Mathey Surveyor Wireline Unit with 25,000 " f t . of .092" wirel ine.

Keyes 301

SECTION VI

SECTION VI

11ST OF MUD ADDITIVES T R A D E N A M E S A R E T H O S E O F D R E S S E R I N D U S T R I E S . I N C . M A Q C O B A R

1. BEN-EX: Ar.fySnSa CCOOlymar

2. BIT LUBE: Mixture of ntuuaiixtc ehtnoiia. Comper»ams art wool grtasa. K O H . I » A in • hydrocarbon carritr.

3. CAUSTIC POTASH: ?c.JU.um hyero».oa (KOH)

C. CAUSTIC SODA: Sec - - - * yC*c«C t (MaOH). l y t

5. CELLOSEAL: Cr cs-a-t •'•i*:«r f ca-<e e- ca'iuicwl

6. CEASCAL: Cllc ctrbenttt fs .^ t t ts r t l a*»d 'ifftcsulteRttl

7. CEASTOP: S a - t « Ciasui enrsm.*;n SSttHiwfa sulfate

3. CHIP SE AL: i - tzz !Z Z i U ' fiSOT

9. CV?AN: Sodium ccivaov»:e Issn/iie ooi^rrar). Stmt as WL-100

10. OV-22: 3ni!i*ni 5!aek (natural 5 ::icni;t) and Mar.jantsa dic*'de

11. OV 33: A etterfCit a i «v r f -n a -yd'csarbon car'«tr

12. DIASEAL-M: Oiaiorr.auc-j e t f t i and rr.agnajium silicate

13. DOUVIS: Cometee icng Chain bicsclyrner Ifcaciaria on carbohydrates). Xsmhtm Gum or ociysaccnance.

14. O -D : Acueous 5'ane w in cstnanoiam^es

16. FLOXIT: Coooi/ner of acrv ami-a and acrylic aod (or Propanoic aod)

16. 'NKIBITOR 101: Mature ol rb j * moltojier weight morphoi«nt type compounds (amint typa) »v.th iPA a' d aromatic -. ihtha

*?. INHIBITOR 2C2: An organic salt with hign mclecuiar wtiefci organic aod anc tmrna ceiymers. !PA ar.d itfty'^nt cx.ci in a hycrocarcon earner

13. INHIBITOR 303: Mixture of high molecular weight morche'ine type cor-Pounds limine tvoe) with l*A

'•9. KLEEN-UP: 3iend of surfactants. Butyl ccliosolva and a nonam.ne eetergent concentrate

20. KWIK THiK: Bentonite (sodium nontmoriltonite) and polyaerylic aod

21. LIME: Caldum hydroxide

22. LOWATE: CalOumcarbonatt (Lirr«tton«) (naturally occurring)

2 1 MC QUEBRACHO: Tann.r aod or tannin (gaiiotanic ac<d)

«a. MAGCO CMC: Sodum carboxyrr-etnylceiMcse or calluicta gum

25. MAGCO ALUMINUM STEARATE: Aluminum stearate or aluminum tnstearate

25. MAGCO FOAMER ?B: Ar..c"^c a«c nenisnic surfactants c'- :*e a'»eno!em,ee tyses

2?. MAGCO MICA: :.'..ca tccmotta sii-cate). (natu'a-y occurring)

J u l y 3 0 . 1 9 8 2

23 . VAGCC3AR: ~y e zv - ~ '.. ;-.e: • » " ; l

23. ••'AGCCGEL =«-•!—.:e 'SCdium <~0«^3» 'c-.ie) ; - i "w i "v eccurr.egj

33. MAGC0LU9E: : i ' z z' iwi'w'CtS :r : »c«' ce i r c a* a'«a*c:»- ;« >n a er i t f in c -ycoca'con c j r r t f

31. MAGCONATE: Fet/oie.. • sui!c<*a:e ar.o i.gn.te

32. v.AGCCNOt.: 2 e:hyi he«aHci (2-etny^exyi alcohol or octyi a'cphbi)

33. MAGCOPHOS: Sod'um ietr»r;hcsohete (sod-um oeiyphcsshate'

34. MAGNESIUM OXIDE: V | { -> *v i (ratural ly occurring)

25. MIX ".AL: S :«i eeleium cersonatt (L-mestone) (naturally occur:-ng)

36. Mi 5 F 1 ER: Cru^td sugar car* (bagasse)

3>. M V - L r . . . J L . - C o r n i t * r c n

38. M V - L O PRI SERVATIVE: Paraformaldehyde (paraform)

39. NUT Pt JG: Urowtd and sized walnut and paean shells

O . o s - 1 : Secum sulfite and tanme acid catalyzed with a trace of cobalt chloride

At, . > - 1 - L : A.'nmoniurn S'Suifite catalyzed with nickel chloride

-2. '3 i . . i : A*e: ?c-muleted :>end of fatty eod scacs, gilso* te, oxidized asphalt, manginese 6cxiee, ano a drying day material

•'.3. PIPE LAX: 3:end of an cxezs'-ne. wee) grease, dispersed in a -aontha base

Ai . PClYBRlNS. v.agnesium carsonate imagntfiifl, calcium carponate iu"ne*ionei. h»oro«yetr.yi c««w>csa

>5. POTASJ.'UM CHLORIDE: Potassium chloride (ootash muriate)

-5. RESINEX: Coppiymar of a sulfonated lignite and a sulfonated phenol-formaldehyde urea ream

i , . SE—11: Dccer •! S«r*.:ene sulfonate and imidazoline in a hydrocarbon carrier

*9. SI—10JO; Poiyicryiate. photthonate. g'yoerol in wa*er

' 9 . S ALINEX: Aic-hoi ether lutfati

5J. i iAl .T: Soda rr. -loride (skit) (naturally occurring)

51. SALT GEL: AtiVJIgite cay (Fuller'i Ear-h) (naturally ocevrring)

52. ;CCA ASH: ^<d°gm carbonate (soda ash) (n .rally occurring)

13. SOOIUMCi JMATE: Sodiun. chromate

54 SCOIUrVi DICHROMATE: Sodium dichromate

za. SPERSfcN'i: Chrome lignosulfonate

58, STA3ILHOLE: Asohait and kaolin (natural clay)

57. SUR F A i: E: Formulated as 30 mbl. ethylene oxide nonyl phenol (same as DME)

58. SURFA'C M: Npnionic phenol; 30 mol. ethylene oxide surfactants (same es DMS)

S . TANNATHIN: Oxidized lignite (leonarcite brown coal) (naturally occurring)

60. VG—t i : Organophylic bentonite (treated with quaternary ammonium)

Rl. vr . i tTOIL: Formulateo blend containing tatty acid soaps, gilsonite. pxidized asphalt, manganese dioxide, drying daya with organic suifpn»;ed stabilizers

62. \ IS3ESTOS. VISQUICK: Magr.etium silicates

to. X—It : iron carbonate (sidentc) (naturally occur:<ng)

0*. XP—20: Mixture of oxidized lignite, sodium dicr.romate. ana ocuu.um hydroxide

65. XPK-2000: Organic sulfonate in naphtha ttse solvents

66. ZINC CARBONATE: Zinc carbonate

57. ZINC CHROMATE: Zinc Chromate

• 0 0

SECTION VII

OIL SPILL CONTINGENCY PLAN

Char. ipl in has an approved O i l Spill Contingency Plan on f i le with the Minerals

Management Service in Meta i r ie . Louisiana as shown by the attached approval le t ter dated

August 28. 1985. from Mr. D. W. Solanas. The Plan includes (1) not i f icat ion procedures

and a l isting of contact agencies and personnel; (2) response procedures for spills of

var ious sizes; (3) a list of equipment; «») responsibilities of the operator personnel; (5)

t ra in ing procedures; and (6) preventat ive measures to min imize spills and pol lut ion.

Champl in 's membeiship in Clean Gulf Associates wi l l make available the Association's o i l

sp i l l c lean-up equipment along the Texas and Louisiana Gul f Coast. A fu l l inventory of

equipment is maintained at the CGA operating base in Grand Isle, Louisiana. Dependent

upon weather conditions and locat ion of boats, this equipment can be at the dr i l l site

loca t ion approximately 79 miles f rom Grand Isle, Louisiana wi th in nine hours f rom the

t ime a ca l l is initiated.

Clean Gulf Associates has f ive types of equipment: ( I ) fast response open-sea skimmer;

(2) h igh volume open-sea sk immer; (3) shallow water skimmer; (4) communication

equ ipment and beach clean-up system; and (5) boat spray system.

Should their services be required, Pete son Maritime Services, Inc. can provide addit ional

men . equipment and materials to handle both major and minor spills.

UNITfcU S T A T E S D E P A R T M E N T OK THE INTERIOR M I N E R A L S M A N A G E M E N T SERVICE

G U L F O F M E X I C O O C S R E G I O N '• O BOA II t t

M ( r < i m i - O ' J U I A N * 7 0 0 1 0

In Reply Refer To: RP-2

^ fa fr

Champlln Petroleum Company Attention: Mr. J. R. Carter, Jr. l^J Four A l l en Center 1400 Smith Street, Suite 1500 Houston, Texas 77002

Gentlemen:

Your l e t t e r dated August 28, 1985, transmitted the results of the annual review of Champ!in Petro'eum Company's 011 Spi l l Contingency Plan. The plan Is hereby approved in compliance wi th paragraph 3.2 of OCS Order No. 7. I t has been f i l e d In th is of f ice and copies have been sent to our D i s t r i c t Of f ices.

Enclosed 1s Information which concerns our recent reorganization and personnel changes. Where i t is appropr iate, modify your plan to concur with th is In fo r ­mat ion.

Please furnish seven copies of fu r ther revisions or amendments to your 011 S p i l l Contingency Plan.

Sincerely yours,

0. W. Solanas Regional Supervisor Rules and Production

Enclosure

SECTION vm

PROJECT AIR EMISSIONS

SOUTH TIMBALIER BLOCK I9S

OCS-G 7769

The exploration plan for OCS Block, South Timbalier 198, will consist of drilling,

completion and/or abandonment operations. Cham pi in anticipates the project will last

about 800 days total while drilling eight wells. Each well will be drilled to a depth of

16,500 feet for a total drilled footage of 132,000. The projected air en.issions for the

project are as follows:

Major Source - Engine* (Offahore)

•Calculations Basis: Total horsepower requirement is based on 60 hp-hr/ft from Table a-3

"Atomospheric Emissions from Offshore Oil and Gas Development and Production," EPA

No. ^50/3-77-026, June 1977. Engine emission rates are based on emission factors from

Table 3.3.3-1, "Compilation of Air Pollutant Emission Factors," Third Edition, EPA

Reports AP-*;, August 1977.

Minor Sources (Offshore)

1. Helicopters used in this , are expected to make 800 round trips during the

project, based on approxima... <ie round trip per day.

2. Work boats and crew boats may use 1,200,000 gallons of fuel during the project,

based on using approximately 1,900 gallons per day.

NO, - 122.1 CO - 26.»3 VOC - 9.7t ZiP - 8.72 SO? - 3.12

3. Incinerators are expected to burn 80 tons of paper wastes during the project, based

on burning approximately 200 pounds of waste per day.

Emissions - • i n Tons per Project

N O , CO V O C TSP S02

Helicopters 0 .?3 2.23 0.21 0.10 0.07

Boats 1 16.GO 07.52 21.6 19.00 11.66

Incinerator 0.00 12.00 o.oo 1.00 0.02

•Calculation Basis: Hel icopter emissions based on Table 3.2.1-3; boats on Table 3.2.3-1;

and incinerator on 2 . ' - I of "Compilation of A i r Pollutant Emission Factors," Third

Edit ion, EPA Report AP-02 . August 1977. Table 3.2.?-l gives no TSP emission factor ror

boats, so the TSP ra te was approximated by assuming that boat TSP is equal to 90-* of

boat VOC which is the ra t i o between TSP/VOC for diesel engines in Table 3.3.3-1.

T o t a l ' jrces (Offshore)

N O , CO VOC TSP SO?

Tota l 239.01 88.23 35.57 29.66 19.87

Emission Exemption Determinat ion

Exploration operations in OCS Esock, South Timbal ier 198, are located approximately <»8

miles from the closest onshore area. The onshore support base for the project wi l l be

Fourchon, -isiana, approximately 50 miles f rom the Mock. Based on a distance of <»8

miles from the nearest l and fa l l , the emission exemption levels are as fol lows:

Tons of CO = 3000 D (0.67) = (3000) (08) 0.67 = 00,906.? tons/year

Tons of N O x . VOC. TSP, SO? = 13.3 D = (33.3) (08) = 1598.0 tons/year

The exemption levels are far above the est imated actUf ' « missions for the project , so i t

can be concluded the pro jec t w i l l have an insigni f icant i.npact on the air quality in the

project area.

Onshore Sources

I t can be reasonably assumed that air emissions f rom onshore operations associated wi th

the project should be approximately the same a minor offshore emi< m s , so i t can be

concluded the onshore emissions also should have an insignif icant impact on the air quality

in the area.

SECTION IX

DESCRIPTION OF ONSHORE SUPPORT BASE FACILITY

Support facilities for drilling operations in South Timbalier Block 198 will be located at

Fourchon, Louisana. Arrangements will be made with one of the mud vending companies

having established complete service facilities. The facilities will include dockage,

helicopter land;>g site, bulk and sack mud additive storage and loading facilities and liquid

mud mixing and storage facilities. A communication and dispatching base will be

established and manned 24 hours per day.

LOCATION MAP

c , MISSISSIPPI liyiSIANNA / "><

SECTION X

(I) TITLE PAGE

ENVIRONMENTAL REPORT

(Plan of Exploration)

CENTRAL GULF OF MEXICO

SOUTH TIMBALIER AREA

BLOCK 198 (OCS-G 7769)

CHAMPLIN PETROLEUM COMPANY

November !98i

For

Mr. J. R. Carter, Jr.

Regional Manager of Reeulatory and Unitization

CHAMPLIN PETROLEUM COMPANY

Four Allen Center

1000 Smith Street, Suite I 500

Houston, Texas 7700?

Telephone: (713) 650-255?

By

Racal-Decca Survey, Inc.

10001 Westoffice Drive

Houston, Texas 77002

Telephone: (713) 78 3-8229

flEEED ;

T A B L E OF CONTENTS

Pape

( I ) TITLE PAGE

(?) DESCRIPTION OF THE PROPOSED ACTION

(a) Lessee and/or Operator

(b) Lease Number and Location

(c) Objectives and Summary of the Proposed Act iv i t ies

(a) Travel Modes. Routes and Frequencies

(e) Support Bases and Personnel Requirements

»f) New Support Faci l i t ies

(g) New or Unusual Technology

(h) Transportation o i Oi l and/or Gas

(i) Project A i r Emissions

(3) DESCRIPTION OF THE AFFECTED

ENVIRONMENT A N D IMPACTS

(a) Physical and Environmental

(i) Commerc ia l Fishing

(ii) Shipping

(i i i) Smal l C r a f t , Pleasure Boat ing, Sport Fishing and Recreation

(iv) Cu l tu ra l Resources - Known Archaeological and Histor ic Areas

(v) Ecological ly Sensitive Features

(vi) Exist ing Pipelines and Cables

(vii) Other Mineral Uses

(vi i i ) Ocean Dumping Uses

(ix) Endangered or Threatened Species

—uxuBoa

TABLE OF CONTENTS (Continued)

Page No.

(b) Socio-Economics 16

(i) E f fec ts on Local Employment, Population Centers and Community Services 17

(ii) E f fec ts of Increased Air and Boat

Traffic 17

(ii i) Demands for Goods and Services IS

iH) UNAVOIDABLE ADVERSE IMPACTS 71

(a) Water Qual i ty 21

(b) Effects on Marine Organisms 21

(c) Air Quality 22

(d) Commercial Fishing 22

(e) Shipping 22

(f) Small C r a f t , Pleasure Boating,

Sport Fishing and F.ecreation 23

(g) Cultural Resources 23

(h) Ecologically Sensitive Features 23

(i) Existing Pipelines and Cables 23

(j) Other Mineral Us?s 20

(k) Endangered or Threatened Species 20

(1) Oceun Dumping Act iv i t ies 20

(m) Mil i tary Use 20

(5) REFERENCES 25

(6) SUMMARY STATEMENT 27

COASTAL ZONE MANAGEMENT CONSISTENCY CERTIFICATION 28

—LTXJdOB - i i i -

Table No.

LIST OF TABLES

Description Page No.

Projected Emissions from Offshore Sources and Exemption Levels in Tons Per Year

Commerc ia l Landings in Louisiana and f rom 1980 through

•QQBOa —

LIST OF F I G U R E S

Figure No. Description Page No.

Geographic Location of South Timbalier A r e a . Block 198 Relative to the Louisiana Coast

- V -

(2) DESCRIPTION OF THE PROPOSED ACTION

(a) Lessee and/or Operator

The lessees for South T:mbalier Area, Block 198 are Ch^rr?!«n

Petroleum Company, Sun Exploration and Production Company and Pogo

Producing Company. This lease was acquired in Lease Sale No. 98. Champlin

Petroleum Company is the operator for this block.

(b) Lease Number end Location

The lease number for South Timbalier Block i?« is OCS r 7769. n»««

block is located in the Central Gulf of Me.'co '.frshore Tet rcbo- • F •»

Louisiana. The location map (Figure I) shows xbc* it it- «sfcjut. '• ' rr.ues 1 •

nearest landfall and approximately 50 miles ft n 'he shore i • At*'*

Fourchon. Louisiana.

(c) Objectives and Summary of the Proposed *.Ciivit>

Champlin plans to conduct exploratory drilling activities in this block to

evaluate the hydrocarbon potential. Eight (8) well locations have been selected.

Well locations and drilling depths are provided in the Plan of Exploration (POE)

for this block. The drilling activities are completely exploratory and may

include a production test i f hydrocarbons are encountered. If commercial

quantities of hydrocarbons are discovered, a development and production plan

will be prepared and approved before production will be permitted from these

wells or from any future development wells.

The jack-up rig KEYES 301 or similar equipment wi l l be used for the

proposed activities. A description of the rig is provided in *he POE.

It is anticipated that the proposed activities will commence in Februa:y

1986. The drilling time will be approximately 100 days per well. Net all

proposed objectives wi l l necessarily be drilled. Inform- I ' j t i obtained from the

first well actually drilled will be used to determine i i ther wells are to be

drilled.

flaggy - i -

. sf ••<=ui e ^ ' T ^ t ® F • 1. pQHfi • • .f;:-•»

iv,; t i . i r

firm* •« — r - . i , ' - f T v," i

;.- - i r ' i . ' . , - „ • . .

«i "if-1—irWro* n ttt% ntrw nn-Df-7i*iTrr:rr, 5 ***~ri,1 rtprrVrr?^ H T f l i i f i T

ir*jr«-ivr:ir. ^•scrwrrr TT»*iTi'tir*'1

.-ri.-i-T _ rfr'.--ilTTr.T'u,)n harm

HI. iu ".«. IH' .W.

1 i^Jmf:f-1-ir]Tr r|_»._i

arf7«T̂ rii i ni i'li ft

EE III !• l i i l B r a l ^ — -I4nr , M I R 1 - f r r -hut-

Figure I . Geographic Location of South Timbalier Area , Block I9S

Relative to the Louisiana Coast

(d) Travel Mooes, Routes and Frequencies

The proposed act iv i t ies w i l l be serviced by , w i n e vessels and hel icop­

ters from Fourchon, Louisiana.

Champlin w i l l use two 110-foot supply and crc* 'roats in support of the

dr i l lu 'g operation. They w i l l be docked at existing acil i t ies in Fourchon,

Louisiana. Travel frequency is anticipated to average a^out one round tr ip per

day. Once these boats are in open water they w i l l travel the most pract ica l ,

d i rect route to the r i g .

Contract hel icopter w i l l be used for air transport of personnel and small

supplies from Fourchon, Louisiana to the r ig s i te . Travel frequency w i l l

average one round-t r ip f l ight per day. The helicopter wi l l f ly the most

pract ical , direct route to and from the r ig .

(e) Support. Oases and Personnel Requirements

Champlin w i l l use f ive people at the onsnore faci l i ty in Fourchon,

Louisiana for the purpose of coordinating offshore act iv i t ies. The number of r ig

personnel wi l l be approximately 56.

The proposed act iv i t ies are not expected :o create any requirement for

new hires in the v ic in i ty of the shore base area. No new employees or fami l ies

are expected to move into the af fected area. Normal ly , most of these

employees return to the i r homes in Louisiana, Texas or other states when their

tour of assignment is completed. Some, however, may remain in the local area

during their o f f -duty periods.

( f ) New Support Fac i l i t ies

Existing fac i l i t i es in Fourchon, Louisiana are adequate in meeting the

requirements of the proposed act iv i t ies. No new faci l i t ies wi l l be needed, and

no new land acquisit ion or construction of new support bases is anticipated as a

result of the proposed ac t i v i t ies .

'RACAL - 3 -

(g) New or Unusual Technology

There are no new or unusual operating procedures and techniques to be

used during the proposed activities that may affect the coastal waters of

Louisiana.

(h) Transportation of Oil and/or Gas

The proposed action is exploratory. No oil and gas will be produced and

transported during this phase of the operation. Any future production and

transportation of oil and gas resulting frcm the discovery of commercial

quantities of hydrocarbons w : l l require the submittal and approval of a

development and producticn plan.

f i) Projected A.r Emissions

Projected air emissions from offshore sources and exemption levels are

summarized in Table I . Calculations are provided in the POE. The shortest

distance from any point on this lease to the nearer landfall is about <*8 statute

mile?.. As indicated in Table I , the estimated actual emissions are less than the

exemption levels, thus exempting these activities from further air quality

review.

Onshore emission levels should be minor and tempor • during

helicopter takeoffs and landings, as well as when the supply and crew ooats are

in transit in the harbor or are at dock with generators running. The use of

existing onshore facilities is believed to pose no additional impact on the air

quality oi the ai ?a.

T a b l e L P r o j e c t e d Emiss ions f r o m O f (shore Sou r - cs and E x e m p t i o n L e v e l s i n Tons pe r P r o j e c t

Major Source Minor Source Total Engines Helicopter Boat Incinerator All

Sources

NO^ l??. IO 0.23 116.64 0.04 ?39.0I

CO 26.43 ?.28 47.52 l?.00 88.23

VOC 9.76 r .2. 21.60 4.00 35.57

TSP 8.72 0.1 -J 19.44 1.40 29.66

SO? 8.1? 0.07 11.66 0.0? 59.87

Exemption Levels

CO: 3409 <L» ? / 3 = MOO (93)?/* - 4 4,996 lom/year (or 9 ,424 toni /project)

N O , . VOC, TSP, SO?: 33.3 ( l » =. 33.3 (48) = 1,598.4 tons/year (or 3,503.3 tons/project)

D = D i s t a n c e to nearest l a n d l a l l a ' i3 s t a t u t e m i l es

(3) DESCRIPTION OF THE AFFECTED ENVIRONMENT AND IMPACTS

(a) Physical and Environmental

(i) Commercial Fishing

Nearly all commercially important species in the Gulf of Mexico

are estuarine dependent (Hoese and Moore, 1977; U. S. Department of the

Interior, 1983). Gunter (1967) estimated that estuarine-dependent species made

up over 97 percent of the total commercial catch of the Gulf states. With the

exception cf such species as the oyster k.rassostrea virginica) and the spotted

seatro it dvnoscion nebulosus) many species leave the estuaries for seaward

migration and spawn offshore. The eggs of the majority of these species hatch

in thr waters of the open Gulf, and the developing larvae become part of the

offshore plank tor.ic comuuni'y. Un^er the influence cf tides, currents and

winds, the young eventually arrive at the estuarine nursery grounds where they

feed, grow a-vl mature prior to migrating to sea to repeat the spawning cycle.

The U. S. Department of the Interior (1983. p. 186-187) provides a concise

description of the predominant commercia.'.y important species in the Gulf of

Mexico, their habitat preferences =*nd general harvest areas.

Predominant commercial marine resources landed in Louisiana

include shrimps (Penaeus spp.), blue crab (Callinectes sapidus). oysters

(Crassostr virginica), menhaden (Brevoortia patronus), rvd drum (Sciaenops

OCellata). black drum (Pogonias crornis), spotted ;eatrout (Cynoscion nebulosus),

sand sea trout (Cvnoscion arenarius), croaker (Microoogonias undnlatus),

flounder (primarily Paralichth s spp.). Spanish mackerel (Scomberomorus

rnaculatus), pompano (Trachinotjs carolinus), red snapper (Lutjanus

campechanus), and mullet (Mjjeil cephalus). Table 2 summarizes the

commercial landings in Louisiana, in terms of poundage and value, from 1980

through 1980.

Louisiana led all states in annual poundage landed during 1980

through 1984. A reco-d landing of 1.931 billion pounds was reported in 1980

principally because of record landings in menhaden. This represented 30-* of

the U. S. total and 73** of the Gulf total (U. S. Department of Commerce,

NMFS, (989a). Tne landing value of 265 million dollars in ',980 was second to

flBBEBf -6-

T A B L E 2. Commercial Landings in Louisiana and Mississippi from I9S0 through 1984

LOUISIANA CULF REGION

YEAR

1980

1981

1982

1983

1984

Quan t i t y * 1 ) Value l 7 > Quant i ty ! ' ) Value* 2) SOURC. :

1,423

1,169

I ,719

I ,S00

I ,931

178

194

249

?30

?65

I ,979

1,700

2,300

2,443

2,644

( I ) Landing quar *i 'y in mi l l ion pounds

(?) Lit rutin;1 value- in mil l ion dollars

463

614

616

6 36

U . S . Dept. of Commerce NMFS (1981)

U . S . Dept. of C j i r m e r c e , NMFS (1982)

U . S Dept. of Commerce, NMFS (1983)

U . S . Dept. of Commerc NMFS (1984)

U . S . Dept. ol Commerce, NMFS ( l 9 8 S a )

Alaska and represented 11** of the U. S. total and ^O* of the Gulf tot-

Department of Commerce, NMFS, 1985a). The five-year total from

1980 shows that '-ommercial f i .:ery landings in Louisiana accounted fci

the Gulf region total poundage and 38-V of the Gulf region total value

Department of Commerce, NMFS, 1981, 1982, 1983, 1984, 1985a). Camero

Louisiana was the number one port in the nation in pounds landed annually

during this period. Other important ports in Louisiana include Venice-Empire

and Dulac-Chauvin.

In terms of value, shrimp (primarily the brown shrimp Penaeus

aztecus and the white shrimp P. setiferus) constitute the most important

fishery in Louisiana. Production of shrimp in any particular year depends

largely on environmental conditions in the estuaries during postlarval recruit­

ment. Barrett and Gillespie (1973) indicate that estuarine water temperatures

during April ate crucial for brown shrimp population survival and that salinity

appears to be a critical factor in distribution and population success. Coastal

salinities are directly influenced by rainfall and river water intrusion, and

Barrett and Gillespie (1973) were able to note the correlation between river

discharge and shrimp production. In general, spring river discharges were

considerably lower during good brown shrimp production years than they were

during poor production years; and the best white shrimp production years

occurred during the lowest summer river discharges.

Louisiana shrimp landings are the largest in value in the country.

In 19S0, the shrimp catch was approximately 8S.7 million pounds valued at 99.3

million dollars (U. S. Department of the Interior. 19S3, p. ?I4). In !9S'-», shrimp

landing in Louisiana was 196.4 m i ' i : j n pounds (35 V- of U. S. total and 42"* of

Gulf total) valued at approximately 184 million dollars (U. S. Department of

Commerce, NMFS, l*8>a).

Menhaden are the basis of Louisiana's largest fishery and rank

second in value. Unlike the shrimp industry, this fishery operates exclusively

offshore. In 1980 there were 1.3 billion pot-nds of menhaden landed valued at

56.6 million dollars (U. S. Department of the Interior, 198?, p. 214). !t should

be noted that although no menhaden are landed in Texas, a significant Texas

catch is offloaded in Louisiana. Cameron, Louisiana is the number one port in

the nation in pounds landed.

-8-

OjCters a ie the third most valuable fishery in Louisiana, which

accounted for M. I mi l l ion C^l'ars in 1980 (U. S. Department of the Inter ior ,

1983, p. 210), In 1980, approximately 12.0 mi l l ion pounds of meat were landed in

Louisiana, accounting for 3 1 * of the Gulf tota l (U. S. Department of

Commerce, NMFS, i985a). The most important areas for oyster prod<- *-on are

Terebrr.ne Parish, Bsratar ia Bay, and the Lake Borgne-Breton Sound bystem.

Oyster seed ground reservations are located in Cai l lou Lake and Bay Junop in

Terrebonne Parish, Hackberry Bay in Jefferson and Lafourche Parishes, and Bay

Gardene in Plaquemines Parish, representing a to ta l acreage of 18,900 acres (U.

S. Department of the Inter ior , 1983, p. 188). These areas are managed by the

state for the taking of seed oysters, and there are about 230,000 acres of

private oyster leases in Louisiana that are concentrated in Plaquemines, St.

Bernard, Terrebonnne, Jefferson and Lafourche Parishes. Public oyster grounds

occupy approximately 690,000 acres, most of which are east of the Mississippi

River (U. S. Department of the Interior, 1983, p. 188).

Accord ing to Visual No. 4 (U . S. Department of the Inter ior ,

1983), South Timbal ier Block 198 is located outside the outer l im i t of principal

menhaden harvest areas; but inside pink, brown and white shrimp, as wel l as

principal industrial bot tomf ish harvest areas. Commercial fishing act iv i t ies are

expected to be occur in the area. The presence of the exploratory dr i l l ing rig in

the area is shor t - te rm. Should the exploration e f fo r ts prove successful, the

resultant production plat form could serve as ar t i f i c ia l reefs during its

productive l i fe .

The fisheries resources in the Gul l have coexisted wi th petro­

leum deve.opment for over 30 years and there has been no evidence indicating

any lasting impact on these estuarine associated f.shenes (U. S. Department of

the Interior. 1931. p. 109). I t was pointed out earl ier in this section that natural

estuarine environmental conditions such as water temperature and salinity

could directly a f f ec t the survival and production of shrimp.

Baker et a l . (1981), in an ecological investigation of petroleum

production plat forms in the Central Guif o i Mexico, concluded that any ef fects

from dril l cutt ings or dri l l ing fluids were rest r ic ted to an area wi th in 500

meters of the p la t fo rms. Review of the distr ibut ion of toxici t ies of over 70

dril l ing fluids on more than 60 species of estuarine and marine organisms by the

WACAL

Nat iona l Research Council (1983) indicates that most water-based dr i l l ing f lu ids '

a re relatively non-toxic. Short te rm (00 to 140 hours) acute toxic i ty bioassays

show that over 9 6 * of the whole dri l l ing fluids tested have LC50 values greater

than 1,000 ppm, while more than 9 8 * of the similar tests on suspended

par t icu la te phase of dr i l l ing f lu ids have LC50 values greater than \0,000 ppm

(Nat ional Research Counci l , 1983, p. 2). The U. S. Department of the Inter ior

(1981 , p. 144) further indicates that dr i l l ing muds and cutt ings discharged in to

the offshore environment would be dispersed rapidly. This holds true for other

sol id and liquid wastes discharged. Degradation of water quality would be

local ized and l imited to the immediate area of the dr i l l s i te . Some desirable

species may avoid the immedia te area, while larval and egg forms may be

k i l l e d . Localized ef fects such as the avoidance behavior are not expected to

e x e r t measurable inf luence on commercial f isheries. Furthermore, normal

ac t i v i t i es in the lease area are not expected to exert any signif icant impact on

those commerciul species such as oysters and spotted seatrout that are

indigenous to bays and estuar ies.

Pc*en*ial impacts on the commercial fishing industry resulting

from OCS Sale No. 98 are described in the U. S. Department of the Interior

(1984, p. 60). Major impact producing factors *ould include the removal of

trawling space due to platform emplacement and gear conflicts. Such impacts,

including cumulative impacts, are expected to range from very low to moderate

(U. S. Department of the Interior, 1980, p. 38 !-3S'-»). m

(i i) Shipping

During the explorat ion phase of o i l and gas development in the

lease area, service vessels t ravel l ing between the shore base and the lease area

w i l l result in an increase in vessel t ra f f i c in these areas. During the early phase

of the operatio.% i t is p< sible that there w i l l be a slight negative impact on

ship t r a f f i c , which w i l l f shor t - term in nature, unt i l t ra f f i c adjusts to new

s t ruc ture locations (U. S. department of the Inter ior , 1983, p. 402). Increase in

vessel t ra f f i c as a result of OCS Sale No. 98 is expected to be about 9,672 tr ips

in the peak year (1990) of a c t i v i t y , which is about a I * increase over the 1981

t r a f f i c to ta l , and that such impac t , including cumulat ive impact , is classif ied as

low (U . S. Department of the In te r io r , 1980, p. 005).

'RACAL -10-

sel t r . i f f ic would increase the probability of vessel

to vessel col.. - Ai a vessel , - n i t o n s w i th OCS structures. Such accidents

have been few due io the existing network of fairways in the Cul f . and t ra f f i c

coordination and regulat ion of marking requirements for rigs and plat forms by

the U.S. Coast Guard and the issuance of permits for the erection of structures

on the OCS by the Corps of Engineers (U. S. Department of the Inter ior , 1983,

p. i*02). The U. S. Depar tment of the Inter ior (1983, p. 492) estimates that the

probability of a vessel making a t r ip across the Gulf coll iding wi th an OCS

structure adjacent to a fa i rway is one in 89,000.

In view of the one vessel-trip per day to and from the lease area,

the resultant increase in vessel t r a f f i c is not considered to be signi f icant.

Cumulative impact on shipping is also expected to be insignificant due to the

short-term nature of the proposed act iv i t ies. According to Visual No. 11 (U. S.

Department of the In te r io r , 1983), no shipping fairways are located in this

block. The presence of the dr i l l ing rig is not expected to have any signif icant

impact on shipping ac t i v i t i es in the Central Gulf of Mexico.

The impact of the proposed act iv i t ies on ports and harbors

pr narily involves the e f f e c t on demand for addit ional space due to increased

shioments of oi l and gas related equipment and personnel. The use of existing

facil i t ies is expected to have low impact and moderate cumulative impact on

ports and harbors in the Centra l Gulf region (U. S. Department of the Inter ior ,

1983, p. 404; 1984, p. 405).

(ii i) Small C r a f t . F*e.»s-- ja t ing. Sport Fishing and Recreation

The f i rs t ' .ve survey of the sport fishery of coastal

Louisiana was conducted dunnr and 197 5 (U. S. Department of Commerce,

National Marine Fisheries Serv : :e , 1979). Previous data were taken

infrequently and are considered by the National Marine Fisheries Service to be

unreliable. Estimates are that in the 1974 study period, spcrt fishermen spent

over 40 mil l ion dol lars in Louisiana ranking behind only Florida, 114 mi l l ion

dollars and Texas, 64 mi l l ion dollars. The f in f ish catch is by far the most

important in both quant i ty and value. In 1974, the f inf ish harvest by Louisiana

man - i i

sport f ishermen reached fci mi l l ion pounds. During the same period, the

shellfish harvest was 17 mi l l ion pounds.

Since 1979, the National Marine Fisheries Service has in i t ia ted a

series of planned surveys using tested, comprehensive methodologies to obtain

estimates of par t i c ipa t ion , catch and e f f o r t by recreational f ishermen in the

marine waters of the United States. The i979 survey data are described in the

U. S. Department of Commerce, National Marine Fist eries Service ( I $80, 1982),

and summarized by the U. S. Department of the Inter ior (1983, p. 216, p. 221,

p. 222). The 1981-1982 survey data are presented in the ' S. Department of

Commerce, Nat iona l Marine Fisheries Service (1985b).

When considering the f in f ish caught in coastal Louisiana waters,

members of the drum fami ly are by far the most important prizes of the

recreational f ishermen. Red drum and spotted seatrout account for the

greatest poundage of f ish caught but for the most part are taken in bays or

along the coast l ine. Other important sport species include flounder, black drum

and the silver and sand seatrout. Though not l isted in stat ist ics, croakers should

be considered since they do make up a large although unpreferred ca tch .

In the Louisiana sport f ishery the production platforms and other

structures f igure prominently in fishing strategy, as £.ttractants to fish and

landmarks and havens for f ishermen. The most important fish that are l ikely to

be taken around p la t fo rms o f f Louisiana, according to the quantity landed by

recreational f ishermen and the residence tim<! i t the plat forms, are red snapper

and grouper. Also important due to the volume taken are kings and other

mackerel, jacks of various var iet ies, cob'a ana perhaps sheepshead and spade­

fish, though the l a t t e r species are not l isted in the catch stat ist ics.

The U. S. Department of the Inter ior (1983, p. 225) indicates that

the states of A labama. Mississippi and Louisiana support approximately !29

charter and head boats, most of which are l ikely to conduct a signif icant

portion of their f ishing act iv i t ies on the OCS areas in the Central Gulf. The

number of pr ivate boat owners who use their c ra f t for recreation in the Gulf is

not known; however, previous studies and estimates by the U. S. Coast Gua-d

and others indicate that approximately 5 * to 1 0 * of the registered motor boa s

in the Gulf coast states venture out in to the Gulf . There were approximately

-12-

283,400 motor boats registered in Louisiana in 1980; thus, approximately 14,000

to 28,000 p.ivate boats are used in the sport fishing and SCUBA - t i v i t i .

offshore Louisiana. The U. S. Department of the In*- -ior (1983, Visual No. 4)

reports hook-and-Iine fishing areas in the v ic in i ty of the lease area.

Recreational fishing and beating could occur in the lease area.

The U. S. Department of the Inter ior (1983, p. 441-442) an t i c i -

pat?s low impact on offshore recreational f ishing and very low impact on major

recreational beaches of Louisiana. The OCS development has supported

recreational and commercia l fishing ac t i v i t ies . This has st imulated the

manufacture and sale of private fishing vessels and specialized f ishing and

recreational equipment. Commercial enterprises such as charter boats have

become h dependent on offshore structures for satisfying recreational

customer

(iv) Cu l tu ra l Resources - Known Archaeological and Histor ic Areas

Remote sensinr. £ i . t l col lected over the lease block do not show

sites of archaeological or cultural s igni f icance. No inv -t on cultural

resources is a n ' x i p a t e d . However, Champlin w i l l comply wi th Stipulation No. I

g' ernirg the discovery of sites, s t ructures, and objects of h istor ical or

archaeological s igni f icance during opt ations in the area.

(v) Ecological ly Sensitive Features

The Louisiana Gulf coast area is characterized by vast areas of

salt marsh lying at or near sea level, and pocketed wi th shallow lakes, bayous,

sounds and bavs that are important nursing grounds for many marine species.

The entire area, inter laced with a network of channels and canals, occupies

?bout 3.7 mil l ion acres in a broad band across most of the state's inter face wi th

the Gulf (U.S. Depar tment of the Inter ior , 1981). I t is through these channels

a-̂ d passes that the mar ine species migrate in and out of the estuarine nursing

areas.

fiasco -13-

Special management areas designated by the State of Louisiana

are described in Chapter V of the Final Environmental Impact Statement for

Louisiana's Coastal Programs approved in August, 1980. These include those

areas subject to the jurisdiction of the Offshore Terminal Author i ty for the

Louisiana Offshore O i l Port (LOOP) and the Marsh Island Wildl i fe Refuge In

Iberia Parish. Other areas of part icular concern that are located on the

Louisiana coast have been depicted by the U. S. Department of the Interior

(1983, Visuals Nos. 4 and 10). Thest include Breton National Wilderness Area in

St. Bernard and Plaquem.nes Parishes, the Wisner Wi ld l i fe Management Area in

urche Parish, the Shell Keys National Wi ld l i fe Refuge in Cameron Parish,

the Sea Rim Nat ional Wildl i fe Refuge near Sabine Pass, Texas and sandy

beaches ar.d barr ier islands along the Louisiana coast. These visuals do not

reveal the presence of sensitive bottom features .uch as hatd-bottom.* in the

lease area.

The major threat to these areas oi oar t icu la r ' .v.Kern and spects'

management areas f rom offshore oi l and p.as operations is the fear of o i l

pollution a f fec t ing the quality of these '^sources, 5 pecially uV invent

oil spi l l . The probabi l i ty for the occu rence of an o>' *•>?.[ during explc

operations is apparently small (Darenberger, 1976). . *f»hore str

development and normal lease site operat ional act iv i t ies during e x p l o i a w y

dril l ing in the lease area are not exp tc ted to pose majcr thi eats to the

shorefront resources and act iv i t ies. Fur thermore, normal act iv i t ies related to

the proposed Action should not inter fere wi th the management and operation of

the special management areas designated by the states. The use of existing

onshore fac i l i t ies should not have any sni f icant impact on areas cf part icular

concern ident i f ied in this section.

( v 'i) Exist ing Pipelines and Cables

Remote sensing data col lected over the lease area do not show

the preser.ee of pipelines and cables. Consequently no impact on existing

pipeline is ant ic ipated.

(vi i) Other Minetal Uses

Champl in ls not aware of any other mineral mining interests In

the lease area which would be considered commercial ly i r tan t . Sulfur and

salt deposits associated wi th the thousands of diapiric and med structures in

the OCS seafloor o f f Louisiana have mining potent ia l . According to the U. S.

Department of the Inter ior (1983, p. 33), there are f ive active leases in the OCS

waters but none of them are currently producing, and a new sulfur or sal t lease

has not been issued since 1967. There are no manganese nodule deposits in the

Gulf of Mexico, and no interest has been shown in commercial shell dredging

activities in OCS waters. A t ..ent, there are no further plans or proposals

for the mining of other minerals from the Gulf of Mexico OCS seafloo;* ( U . S.

Department of the In ter ior , 1983, p. 33).

(viii) Ocean Dumping Uses

No known dumpsites are located wi th in the lease area (U . S.

Department of the In ter io r , 1981, Visual No. 11). Consequently, no impact on

ocean dumping is ant ic ipated.

(ix) Endangered or Threatened Species

As indicated in the U. S. Department of the Inter ior (1983 p.

183), five federally l isted endangered whale species occur in the Central Gulf .

These include the f i n , humpback, r ight , sei, and sperm whales. The same report

indicated that sperm whales had been sighted near the Louisiana De l ta . Visual

No. 3 (U. S. Department of the Interior, 198 3) indicates the main concentrat ion

of whales to be in the deeper waters of the Centra l and Western Gulf.

Three fedctal ly listed endangered marine turt les (Kemp's r id ley ,

hawksbill and leatherback turtles) and two threatened species (green and

loggerhead turtles) occur in the Central Gulf area. Only the loggerhead tur t le

is sighted fair ly frequently in the Central Gul f . Currently i t is not believed

that any endangered/threatened marine tur t les nest in the lease area (U . S.

Department of the Inter ior , 1983, p. IS3).

The Amer ican al l igator is more abu lant in Louisiana than any

other Gulf state. The habitat of the al l igator is primari ly freshwater and

estuarine bays.

The red wolf may occur along the Louisiana Gulf coast in

Cameron and Vermi l ion Parishes.

The red-cockaded woodpecker, peregrine falcons, brown pelicans

and bald eagles are present in the Central Gulf. The U. S. Department of the

Interior (1983, Visual No. 3) depicts the distr ibut ion of these endangered species

and the geographic locat ion of their c r i t i ca l habitats and migration routes.

None of these occur in the vicini ty of the lease area that could be af fected by

the proposed ac t i v i t ies . The use of existing support base is expected to pose an

insignificant impact to any endangered or threatened species that might occur

in the vic ini ty.

The U . S. Fish and Wildl i fe Service (U. S. Department of the

Interior, 1983, p. 891) indicated that "we have concluded that the direct and

indirect actions are not l ikely to jeopardize the continued existence of the

above listed species or result in the destruction or adverse modif icat ion of their

cr i t ica l habitats i f the probabil i ty of oi l spills f rom exploration are considered

to be near zero and as long as existing support bases are suff ic ient to handle

anticipated explorat ion act iv i t ies. "

(b) So-io-Economics

In Louisiana, much of the economic ac t iv i t y wi th in the af fected area is

dependent upon its abundance of natural resources. The exploration and

production of o i l and gas is a signficant primary industry, as well as the support

for numerous secondary act iv i t ies such as petroleum and petrochemical devel­

opment. In 1979, o i l dnd gas activi t ies in Louisiana generated a payroll of over

562 million dollars; secondary industries related to o i l and gas development and

production further generated a payroll close to 300 mil l ion dollars (U. S.

Department of the In ter ior , 1983, p. 202). These numbers, however, do not

distinguish between onshore and offshore ac t iv i t ies .

Commercial f ishing is a major occupation throughout the area; recrea­

tion and tourism are also important. Economic analyses associated wi th some

of these activi t ies have been presented in other sections of this report.

Arcordlng to the U. S. Department of the Inter ior (1983, p. 228) t ravel

flEEEP -16-

expenditures associated wi th the tourism industry in the Louisiana '. j l f r t g ' j n

amounted to 2.6 b i l l ion dollars in 1951, representing 8 5 * of com^arRole

statewide expenditures. Generally, travel ac t iv i t y directly accounts for about

5 * of total employment and income in the Louisiana Gulf legion. Almost

three-fourths of the ac t i v i t y occurs primari ly in Orleans Parish. Unl ike tourism

in other portions of the G region, very l i t t l e act iv i ty is associated wi th Gulf

beaches; instead major at t ract ions include a variety of sport events, conven­

tions and sightseeing.

Major t ransportat ion systems, such as the Mississippi River, are the

basis for port ac t i v i t y which is also signif icant to the well-being of local ,

regional and national economics.

(i) E f fec t s on Local Employment, Population Centers and

Communi ty Services

As ind icated in Section 2, an exist ing onshore fac i l i t y in

Fourchon, Louisiana w i l l be used as a coordinating center for offshore act iv i t ies

»n the proposed ac t ion . No r ?w faci l i t ies w i l l be constructed and no new hires

w i l l be needed. No new f a r tes are expected to move into the af fected area

during the exploratory phase. Normal ly, most of these employees return to

their homes in Louisiana, Texas and other states when their tour of assignment

is completed. Some, however, may remain in the local area during their o f f -

duty periods. The e f f ec t s of exploratory operations on local employment and

population centers should be negligible. The occasional demands of a few

transient employees on local services should be insigni f icant.

(ii) E f fec ts of Increased Air and Boat T ra f f i c

Vessels supporting the exploration operations wi l l t ravel f rom

Fourchon, Louisiana to the Gulf or the reverse on an average of one round t r ip

per day. Boat t ra f f i c supporting these a c t l / i t i e i should not signif icantly a f fec t

existing vessel t ra f f i c (see Section 3.a.ii on Shipping).

When in por t , the vessels wi l l berth at an existing reserved space

which wi l l be used on a rotat ing basis wi th other dr i l l ing operations. No new

land areas wi l l be occupied ano r icreased demands on existing dock space are

ant ic ipated.

fljagy -17-

Most employees flying Into the local area Irom other areas w i l l

travel on scheduled a i r l ines. No significant e f fec t on local airport t ra f f i c

should occur. About one operations-related helicopter f l ight per day w i l l occur

during exploratory d r i l l i ng . This number should not contr ibute signif icantly to

airway congestion in the area.

(iii) p^r inds fo r Goods and Services

(A) Supplies and Equipment

Major supplies and equipment to be needed for explora­

tory operations w i l l include pipe.-, cement and dr i l l ing mud. The vendors and

contractors who w i l l provid these materials have not yet been determined, but

is expected that the ma jor i t y wi l l bt located in the general v ic ini ty of

Plaquemines Parish. Louis iana. Since the materials are highly specialized,

demand for them should not a f fec t local needs for goods and services.

(B) Water

The U . S. Department of the Inter ior (1983, p.057) Indi ­

cates that this stress would only be of a temporary nature due to the

availabil i ty of rain water in this region; and the expected impacts on the

regional water supply range f r om very low to low,

(C) Aggregate Energy

Approx imate ly 109,000 gallons of diesel and 6,000 gallons

of jet fuel wi l l be purchased each month from lo :a l distr ibutors. While present

supplies in the area are thought to be adequate to handle the demand, the

demand coj ld have an adverse impact on supplies during times of lowered

allocations in the area. The only use ol e lect r ic i ty ant ic ipated is that for the

o l f i ce trailer at the shore base. The rate of consumption should not exceed

6,000 kw per month. The impact on local supplies Irom this use should be

negligible.

ooaoa -13-

(D) Otner Resources

Other services and materials that may be needed to

support offshore operations are listed below:

Loca l Specialized

Port Facil i t ies - Renta l w/Mater ia l

Handling Equipment - 7k hr. Dispatcher

Helicopters (possible)

Communications - Parts * Service Radio, Telecopier, Telephone, e tc .

Diving Service

Machine Shop Welding Service

Labor Contractor w /Ma te r i a l Handling Equipment

Contract Oi l f ie ld or Specialty Trucking Firms w / H o t Shot Service

Air Service Companies (Regular * Charter)

Medical Services - a t M. - n e * Helicopter Bases

Diesel Engine Repair F i rms

Motor Freight Specialized Carr iers-Bus-Cour ier Service, etc.

Weather Service

Small Fabricators

Coast Guard Cont rac tors

Electrical Equipment Repair Shops

Laundry Service

Bilge Oil Disposal Service

Garbage, Trash Dump Service

Security Service

Rig-Contract

Cargo Boats

Cementing Services

Electr ical Logging Services

Catering Service

Casing Driving 4 Running Service

Perforating Service

Fishing Tools

Direct ional Dr i l l ing Service

Coring Equipment Service

Mud Engineering

Legging Service Completion Equipment * Related Service

Tubular Inspection Firms-Electronic Pressure Test, etc.

Wellhead Equipment Service

ooBoa -19-

Local Specialized

Magnetic Particle * X-Ray Service

Rental Car Agency

Motels-Restaurants near Base

Propeller Repair F i rm

Tug Service

The specialized services and materials are used only for

the proposed ac t iv i t ies . Many w i l l be imported especially for the operations or

exist in the area only for servicing such operations. Their use should not a f fec t

community demands for goods and services. Demands on typical local services

and -naterials should be periodic and re lat ive ly smal l , and are not expected to

significantly a f fec t local supplies.

(E) Other Impacts

Rentals and purchases of services, supplies and materials

could put up to $250,000 monthly into the local economy. No other onshore

impact is ant ic ipated.

'RACAL -20-

(4) UNAVOIDABLE ADVERSE IMPACTS

(a) Water Quality

Exploratory drilling activities would have unavoidable effects on the

quality of the water surrounding the well site. A turbidity plume, several

hundreds of yards in length, could be created by the discharge of drill cuttings

and the adherent drilling fluids. This, however, would only affect waters in the

immediate vicinity of the rig (U. S. Department of the Interior, 1983, p. 4 57).

The discharge of treated sewage from the rig would increase the levels

of suspended solids, r v'ents, chlorine and EOD in a small area near the

discharge points. Re vd formation waters and minor spills would result in

increases of the hydrocarbon levels and possibly trace metal concentrations in

surrounding waters.

The overall effect would be degradation of water quality around the rig

and the impact area would be limited to the immediaie vicinity, which could

extend from a few meters to a few tens cf meters (U. S. Department of the

Interior, 1983, p. 457).

(b) Effects on Marine Organisms

There will be unavoidable adverse impacts on marine organisms caused

by drilling activities in the lease are* »se are caused by the anchors,

drilling, smothering of benthic organisms, sediment textural changes due to

discharge of drill cuttings, and increased turbidities in the water column as a

result of the discharge of drilling fluids, cuttings and other wastes.

Some marine organisms would be killed and some would be temporarily

functionally impaired as a result of the proposed operations. The most affected

groups would be the plankton and benthos immediately around the rig. Degra­

dation of water quality due to the disposal of drilling muds and cuttings would

damage these organisms mechanically and toxicologically. The size of the

affected area would be dependent upon the discharge rate and quantity, and

local meteorological, tidal and current conditions.

WOBOB -21-

Menzie (1982) noted that accumulation of solids and cut t ing piles (50 to

150 m in diameter) has been observed in the less turbulent regions of the Gulf

of Mexico. Simi lar accumulations wi l l probably occur in the immediate • cinity

of the proposed locat ions and may bury sessile macrobenthos and megabenthos

within the a f fec ted area. Further away from these locations l ight accumula­

tions of dri l l ing discharges may occur and the fauna may be af fec ted by

alterations in sediment texture. Baker et aL (1981) in a study to investigate the

fate and ef fects of petroleum-related contaminants in the Louisiana OCS,

indicated that the e f fec ts of dri l l cutt ings and dri l l ing muds were l imi ted to

within 500 m of the p la t fo rm. These e f fec ts are considered to be local ized,

short-term and reversible at the population leve l .

Any spil l or blowout could a f fec t a broad spectrum of marine organ­

isms. However, most ef fects would be local ized and short - term. Any ef fects

on mammals, tu r t les , birds and reptiies would be signif icant.

(c) Air Qual i ty

The air qual i ty at the lease site w i l l be degraded temporari ly during

operations, but should return to normal once operations are measurably

completed. Of fshore act iv i t ies probably should not signif icantly a f fec t onshore

air quality. A i r qual i ty at the onshore base should not be signif icantly reduced

by onshore ac t i v i t ies .

(d) Commercial Fishing

Commercial t rawl ing vessels w i l l be temporari ly inconvenienced by

having to avoid the fac i l i t ies in the area. Only a negligible amount of seafloor

wi l l be removed f r om the use of fishermen by the proposed operations.

(e) Shipping

No shipping fa i rways are in the lease area, and consequently, no adverse

effect on shipping is expected. I t is possible, however, that at night and/or

during conditions of inclement weather, e.g. fog, heavy seas, e tc . , ships could

collide with the r i g . The U. S. Department of the Inter ior (I9S3, p. ix) classifies

the level of expected impact upon shipping and navigation as very low to low.

'RACAL -22-

(f) Small C r a f t . Pleasure Boating, Sport Fishing and Recreation

The dr i l l ing r ig may represent an obstacle to some small c ra f t , pleasure

boating and sport f ishermen but such an e f fec t is expected to be negligible.

The U. S. Depar tment of the Interior (1983. p. ix) classifies the level of

expected impact upon offshore marine recreational fishing as very low. The

effects that normal operations would have on any fish stocks important to sport

fishermen are also considered to be negligible.

Any spil l and/or non-petroleum f loat ing debris could foul beaches

inshore of the lease area. The fouling of the beaches would be an aesthetic

detriment that could adversely a f fec t recreat ion. Any ef fects on beach

recreation could av ersely a f fec t tourism and consequently, the local economy.

(g) Cultural Resources

There is only a small probabil i ty that an unknown cul tural resource

exists in the lease area that could be adversely impacted by the operat ion.

(h) Ecologically Sensitive Features

Should a sp i l l occur and reach shore, organisms in wetland and beach

habitats could be k i l led or functionally impaired. Human community disruption

could also occur. Such ef fects would be local ized. Ef fects on endanger­

ed/threatened species and/or cr i t ica l habitats would be signif icant.

Champlin w i l l implement fast response actions for spill cleanup should a

spill occur, thus assuring that any adverse impacts on the environment as a

result of the spi l l would be minimized and contained in the immediate v ic in i ty

of the spiil s i te. Procedures used in spill cleanup and containment are described

in the Oil Spill Contingency Plan which has been approved bv the Minerals

Management Service and is on f i le at the Meta i r ie , Louisiana o f f i ce .

(i) Existing Pipelines and Cables

There are no existing pipelines and cables in the lease area. No

unavoidable adverse Impact ls expected.

R A*C A L -23-

( j) O t h e r M i n e r a l Uses

The p r o p o s e d a c t i v i t i e s should have no unavo idab le adverse i m p a c t on

other m i n e r a l uses o f the area o the r t han occupy ing a sma l l p o r t i o n of the

d r i l l i ng a c r e a g e .

(1<) E n d a n g e r e d or Th rea tened Spec ies

No u n a v o i d a b l e adverse i m p a c t is a n t i c i p a t e d on e n d a n g e r e d / t h r e a t e n e d

species du r i ng t h e c o u r s e of n o r m a l o p e r a t i o n s . Should a sp i l l o c c u r and should

these m a t e r i a l s r e a c h shore any e f f e c t s on e n d a n g e r e d / t h r e a t e n e d species and

c r i t i c a l h a b i t a t s w o u l d be s i g n i f i c a n t .

(1) O c e a n D u m p i n g A c t i v i t i e s

The p r o p o s e d a c t i v i t i e s should have no unavo idab le adverse i m p a c t on

ocean d u m p i n g s i nce areas des igna ted f o r such a c t i v i t i e s a re l o c a t e d a t a

cons iderab le d i s t a n c e f r o m the lease a r e a .

(m) M i l i t a r y Use

No u n a v o i d a b l e adverse i m p a c t on m i l i t a r y use is e x p e c t e d , s ince the

lease area is n o t l o c a t e d w i t h i n any m i l i t a r y w a r n i n g areas.

RACAL

(5) I -.iT.r.N.i s

Baker. J . H . , K . T . K i m b a l l , W . D . j " obe , 2 . Janousek , C L . H o w a r d , and P.R. Chase. 1 9 8 1 . V o l u m e I - P o l l u t a n t f a t e and e f f e c t s s tud ies . ? a r t 6 - Ben th i c b io logy. ]n_: E c o l o g i c a l i n v e s t i g a t i o n s of p e t r o l e u m p r o d u c t i o n p l a t f o r m s in t he Cen t ra l C u l f o f M e x i c o , C A . B e d i n g e r , i l r . . ed . P r e p a r e d by Sou thwes t Rosearch I n s t i t u t e , San A n t o n i o , Texas f o r the Bureau of L a n d M a n a g e m e n t , New Ore leans O C S , C o n t r a c t N o . A A 5 5 I - C T S - I 7 . xi • 391 p.

B a r r e t t , B .B . and M . C . G i l l e s p i e . 1973. P r i m a r y f a c t o r s w h i c h i n f l u e n c e c o m m e r c i a l s h r i m p p r o d u c t i o n in coas ta l L o u i s i c r a . Lou i s i ana W i l d L i f e and Fisher ies C o m m i s s i o n ; O y s t e r s , Wa te r B o t t o m s and Seafoods D i v i s i o n , T e c h n i c a l Bu l le t in N o . 9 . 2S p.

Danenberger , F . P . 1976. O i l sp i l ls 1971-1975 . Gu l f o f M e x i c o o u t e r c o n t i n e n t a l shel f . U.S. G e o l o g i c a l S w v e y , C i r c u l a r 74 I . <*7 p.

Gunter , G . 1967 . S o m e re la t i onsh ips of es tua r i es to the f i s h e r i e s o f t he Gu l f o f Mex ico . E s t u a r i e s , G . H . L a u n f f , e d . , p. 621 -637 .

Hoese, anH R . H . M o o r e . 1977. F i s h e r i e s of the G u l f o f M e x i c o - T e x a s , Louis iana ano a d j a c e n t w a t e r s . Texas A * M U n i v e r s i t y P ress , C o l l e g e S t a t i o n , Texas, xv • 327 p.

Menz ie , C A . 1982 . T h e e n v i r o n m e n t a l i m p l i c a t i o n s o f o f f s h o r e o. i and gas a c t i v i t i e s . E n v i r o n . S c i . T e c h n o l . , 16 (8 ) : 4 5 4 A - 4 7 7 A .

Na t iona l R e s e a r c h C o u n c i l . 1983. P i l l i n g d ischarges in t he m a r i n e e n v i r o n ­ment . N a t i o n a l A c a d e m y Press , W a s h i n g t o n , D . C ISO p.

U. S. D e p a r t m e n t o f C o m m e r c e , N a t i o n a l M a r i n e F i she r i es S e r v i c e . 1980. Mar ine r e c r e a t i o n a l f i s h e r y s t a t i s t i c s s u r v e y , A t l a n t i c and Gu l f C o a s t s , 1979. C u r r e n t F i s h e r y S t a t i s t i c s N o . 8063 . 139 p.

U . S. D e p a r t m e n t o f C o m m e r c e , N a t i o n a l M a r i n e F i she r i es S e r v i c e . 1381 . Fisher ies o f t h e U n i t e d S t a t e s , 1980. C u r r e n t F i she ry S t a t i s t i c s N o . 8100. 132 p.

U. S. D e p a r t m e n t o f C o m m e r c e , N a t i o n a l M a r i n e F i s h e r i e s S e r v i c e . 1982. Fisher ies o f t h e U n i t e d S t a t e s , 1 9 8 1 . C u r r e n t F i she ry S t a t i s t i c s N o . 8200 . 131 p.

WOBOB - 2 5 -

U. S. Department of Commerce, Nat ional Marine F isher i t i 1 . r -cc 198 Fisheries o l the United States, 1982. Current Fisher) Sta* ist tc j o 117 p.

U. S. Department of Commerce, Nat ional Marine Fisheries Service, Fisheries of the United States, 198?. Current Fish-ry Statistics No. 83J"). I p.

U. S. Department ot Commerce, Nat ional M* - . isheries Service. 1985a. Fisheries of the Unit.-"- States, 1984. Current Fisner Statistics No. 8360. 121 p.

U. S. Department of Commerce, Nat ional Mar in * Fii... -ie:; Service. 1985b. Marme recreat iona' fishery stat ist ics survey, A t lan t i c and Culf coasts, 1981-IVS2. Current Fishery Statistics No. 8324. 215 p.

U. S. Department of the Interior. r.«8l. F inal environmental impact statement. Proposed OCS Oi l and Gas Sale'. »7 and 69. Prepared by the New Orleans OCS Of f ice, xvi • 300 p.

U. S. Depar tment of the *" .cr .o. 1983. Final regional environmental impact statement. Gulf of Mexico. Prepared by the Mineral Management Service, Gulf of Mexico OCS Region. < xxv * 1004 p.

U. S. Department of the Infer ior. 1984. Final env i ro imentv ' r ..•» staterrei ., proposed o-: and gas lease sales 94, 98 and ly**. "Vepa tht Minerals Manafc*ment Service, d u l l ni Mexic J OCS Re . M M . *;-Q/>' , **vi • 752 p.

*J 5. un." ronmenta l Protection Agency. 1977a Atmosphetk missions f rom ol r'tor- oi l and gas development and productions. EPA 4 50/3-77-026.

I". S. Environmental Protection Agency. 1977b. Compilat ion of air po l lu tar t v i ssion fac tors . EPA Report AP-42.

(6) SUMMARY STATEMENT

No ecologically sensitive species or habitats are r pected to be locale:* near

the proposed wel l ioctti->»? or a f fec ted by ro •?.«..' acre it'_-s Vased on

information provided .0 "h.s *e , r j r t .

In the conduct of the oropcred exploration act iv i t ies in South Timbalier Area,

Block I9S, Champlin Petroleum Company guarantees the fol lowing:

(1) T h e best available and safesi technologies w i l l be ut i l ized throughout

the pro ject . This includes meeting al l applicable requirements for

equipment t yp ts , general project lavou ' , salety systems and equ.pment

and moni tor ing systems.

(2) A l l operations w i l l be covered !>y the MMS approved oi l spilt

contingency plan.

(3) A l l applicable Fecer. i l , State and local r e t i r e m e n t s regarding air

emission and wa t r . quality and disvha : * f >r che proposed ac t i v i t ies , as

wel l as any other permit condit ions, w i l l >• omplied w i th .

73050? -27-

COASTAL ZONE MANAGE '*£ NT

CONSISTENCY CERTIFICATION

Plan of Exploration/Environment-^ Report Type of Plan

South Timbalier Area. Block 193 Area and B.ock

OCS-G 7769 Lease Number

.'be proposed act iv i t ies described in detail in this plan comply wi th Louisiana's approved C o s t a l Management Program and w i l l be conducted in a maimer consistent with such program. Arrar t ements have been made with the State-Times in Baton Rouge. Louisiana to publish a public notice of the proposed act ivi t ies no later th^n December 4, 198 3.

~hampl in Petroleum Company Lessee or Operator

™ « i t i ivin.* Of f i c ia l ^

fox mber 11, "ate"

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