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·, MINUTE lTcM · . This QalencJar Item No. ~ WU~ Mm'· .. -No ~ . _. .. Ute Item

. ~ .. , . uYttteS!lleLanda coim~on by l votaOf,.. -~

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·to" at lta· ··a .... a . meeting.

A sa s. 3'1:-

CALENDAR IT.EM 03/0%'/88 PRC 4~S Smith' Gonz•l•z

APPROVAL OF ·~.ROPOSAL TO 1fitODifY .PLATF.ORM EMM·{, AND ITS SATELLITE 'PLA"TFORM, STA~fE ol:-l AND GAS LEilSE P~C 425

LESSEE.! She11 ·wes.t~rn E&P Inc-. (SWEPl) -Attn.: o. L. oreolt · · p.: o.· Box t:l 164

.. tiakersf±el:d, caldfor.nia 93389

AREA·, TYPE LAND AND LOCATION: s.tate Oil and Gaff Lease· PRC 4.25, issued oi1 February 10, 1950, ·contains apprQS<imately

BACKGROUND:

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83S acres of ·tide and-subm~rged lands west of Huntington a·each .• · orange cq,unty. _oil dri;!;ling and production Platform Emmy -stands in 46 feet of wate~ ap~roxim~tely 1ooa fe~€fro~ shore and was, ~ompleted in 1963. A ~~tellite platform was set adjacent to Platform Emmy in 1981.

Platform Em~Y is a 2s~year-old dri11ing and production platform. It is-an .eight-legged structure with three primary _deck~. -::the"I~_err­the production i~n-d ~he top or· drill'.ing .deck. The lar>gest dee?(: mea_~ures i;OO feet, by 146 ::fee_t ..

Platform Emmy stancfs ·in 46 f'eet -.of water ·with ::the lowe~ deck 45 feet -above mean 1ow-low water 1evel and the drilx deck 8~ f~et aboue-MLLW. The 1200-square-foot off~ce and ~ew change room i~ can~ileuered out ever the water from the northern end ·oF~the d~ill·deck. The roof of the change- room, a~so serves as the helideck. The, :platform r;g is. ,capable of well drilling or workover activiti_es'. There· is one platform -crane•, lccal;.ed ·on the eastern side of the ·dril'.l deck toward· the ~orth"ern end.

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.-CALENDAR ITEM NO. 34 •:<:( \' ... -- ~ ....... "'::- -

In 1981, a small foyr-legged satellite platform was 'S.'lt adj'acent and south of PlaJ:form Eniiny~ Th~ existing d'eck of this platform measures 50 feet by 70 feet, and i~ 45 feet .abou~ MtLW. It was u~ed to house a steam generator and well ,testing facilities. The steam generator has rec~ntly -peen. remoued, leaving .11uch of the q.eck ~pace auailable for other uses.

Sh•ll Wesi;arn E&P, Inc. (SWEPI} p~oposes to make modifications. i;o the ex?-sting Platf'or,m Emmy and its _satel'lite platform to j,.mproue t!1~ir safe_and ~ff'icie.nt operation. Specifically, chan'ges are sought ~o:

0. mod.ern:l-ze tl:l~ e:J,ectri·cal system and ·proc·ess control using '5ta1;e-of-the-ar-~ equipment;

Q op.tim~ze well tes1;.in,9 opera.~ions;

·O enhan~e personnel safety on, the pla~form: a.nd

install a safer means for handling drilling :Pipe, well cas~ng1. and tut>ing. · < .

PRGPOSEO PLATFORM MODIF.ICA-TIONS:

General Description:

T~o addi-tional dee:ks wil:l.. be 'added to the satellite ·plat~o~m. This mQdification will allow. the relocation of the office and crews quarters, helicopter _deck and eiectric motor control center frp~ Platform Emmy. The instailation of a second ~~atform c~ane to the f>latfo~m E;mJJlY- will improv_e ~.fe.ty of handl'ing. tubulars on the drill deck. The· platform eler.tricaL system will aiso ue improued by ins-tallin~ ,of additional transformer,s, a new standby diesel generator and upgraded lighting. Modernization of the communication system, d~ck drain~ge, sanitary waste handling sys-tern and. platform safety sy.stern; t!\lill , }lso be accomplishe~ during this modification project.

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CALENDAR ITEM. NO .• ~3·_4 __.> '

lCONT'Gl

AB 884: '' 1~/2l'/8'8.

OT~ER PERTINENT INFORMATION~ 1. Pursuant to ttfe Conr.nissi.oo Is deleg~tion of

EXHIBITS:

au~hor±ty ana ~h~ State C~QA G6id~liri~~ (14 Cal. Ad~. code i-sdi\!?), the 'staff has: prepar~d a Negative Declaration EIR ND 433, State Cl-earirighouse #88012705. Sut.:h' · Negative Declaration was prepared' and circulated for public reuiew pursuant to the prouision oF the CEQA. A copy of this enuironmental document is attached as Exhibit 11 8 11

•

Bas~d upon the initial study, the Negative Declaration, and the comments received in response thereto, there is no substantial evidence tha.t the project will have a significant effect on the entJironment· (14 Cal. Adm. Code 15074{b)).

2. This actiui ty involves lands i-dentified as possessing significant enuironmental ualues puf~uant to-P.~.c. 6370 ~f. se~. Bas~d upon the ~t&ff's consultation CEQA through the revie11-J. process, it is the staff '·s . opin~on that the project~ as prop9sed, 1s consistent with the use classification.

A. Plat·form Location l'o'ap.

B. Negative Declaration.

IT IS RECOMMENDED THAT THE COMMISSION:

1. CERTIFY T~fAT A NEGATIVE DECLARATION EIR ND 433, STATE CLEARINGHOUSE #88012705, WAS PREPARED FOR THIS PR~JECT PURS4ANT.TO THE PROVISIONS OF THE CEQA RND THAT THE -coMMISSION HAS REVIEWED AND CONSIDcRED THE INFORMATION CONTAINED THEREIN.

2. DETERMINE THAT THE p~OJECT, AS PROPOSED, WILL NOT-HAVE A SIGNIFICACIJ'( EFFECT ON THE ENVIRONMENT.

_.3 ....

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CAlENDMMGI

. MINU1'E PAGl·

3.

4.

. !!_ALE~JD~R !TE~ NO~. 34- - (COHT .. £:-)

--~ FIND THAT THIS ACTIVITY IS CONSISTENT WITH' TUE USE' CLASSIFICATION DESIGNATED FOR TttE LAND PURSUANT TO' P~R.C. 6383 ET. $~Q.

APPROVE THE MODIFICAJIONS TO PLATFORM EMMY AND ITS SATELLITE PLATFORM AS PROPOSED BY SHELL WESTERN E&P INC. SUBJECT TO ENG1NEERING REVIEW AND· FINAL APPROVAL BY T»i STAFF Of THE $TATE LANDS COMMISS~ON.

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SUNSET BEACH

.. SAN PEDRO BAY

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/PRC3177.1 1 {Paral 20-A) ·

PRC-4736

< 1,549 Acres ·

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< PrtfN~b~3=1 , / - )</ !:'JUNTINGTON se~~H I v PR<'.;-42G.1 / PRC 391. r

' · , /~ SWEPJ S-.VE~ .

' / . ' / . .. /

EMM'! PRC 91.1

' . PRC 425.1 •-' ~-sWE::>I , '~SWEPI L/ - /.

PRC3033.1 / . V' (UNION) '

' ~ /~ UNLEASED ARC<I

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Platform Emmy. Location

EXHIBT<t' 1'1211

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STATE t:.ANDS COMMISSION . 1Sll1 13T~ STRHT ' $AC~~MENTO. CA\.lfORNIA 9581" E!tOPOSEDNEGATlVE DE~TION

~oject. Title:

, ~roject !iopoa.•~t=

.. ~"taiict t.oca~l~l

rroject '[)escriptioo.:

· · C~tact Person:

..

zta Mi>· 433 'c•

l'iI• bf. t· W 40031 '. l

sa11i as·o-i-i10~ - ·- ---

Modification of Pla~~or{n ~y Shell Western E>tploration. mid Producti.oti, 1'.nc. (Slil!PI)

State oi1 and Gas'Lease PRC 41~. Offshore RU!\.tiil&ton Beach, Orange Count/, Califon\ia

SWEPi propose• to l!ll>dify l'l&tform Emny and the s&telµ te t0;modernize the facility allowing for a safer and more -efficient condi!'ion on the platform. Modifications proposed are the a~dition of t;>IO decks to- the sat1?llite platform, movement of the crew quarters. electrical Switching equipment, platform control .systems. and helideCk to the Satellite piatform. I~ addition, a new crane will bl? added to the main platform. Other mode~- · izat;ions are proposed tci the electiical, coUmuniCation .• ti and the fire su~p~ession systems.

Talepho.;\•: (916) 322-782-8'.

Ra.ndal:l L. ·Moory

'1'hiti doc-nt ls pupared pur•uont to the require•ntc of .J... csi!fo-inla Da'liron-tal bt' .. 1t· Act (Section 21000 et a•'l•• l'ubilc l!ailour<:e• Code), the State tj:QA Gi!ia.l11l••: (SsctlOA ).SOOI>. et ••'l•• Title 14, California Ad~atratlve Code), and the Stai• ta9~ eo...ta•l'"' regUl.atlai!'

(Section 2901 et aeq., Title 2, California Admini&tratl.,,. Coda). " : I

s .. ed upon the atl:'11ched :1D!tl•1 Stud>" it haS been. !o""'1 d>at• -._,.

J!!! the project will not hav~ a significant e~tect ""the-.,..XromMiftt•

a 1i{l;Y-gation ...,asUTeS iiicl.u'1d in the project '!dll aY<>t~· ~ .. t ... tiall:J aiptficont .offltl:ia, ;I. ' " ,

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INi'i•!AL S'J:UDY PROPOSED ,PLATl'ORM M()DIFICA~ION

TO SHEtL PLATFORM EMMY . PESCRIPTION OF PROPOS:!I)_MODIFICATION

OVERVIEW

.Shell Westei:n Exploration and Pi:oducti:on. Inc. (SWEPI) proposoe 'to m~ke modif ica~ions to existing Platform Emmy w~ich is located on State Lease 425· ~ffshoce Huntinqton Bea~h. The q_oals of the modifications, are· to · lmpi:ov~ safe _and effit;ient ope~ation of the platform. Specifically. these goals inoJ.ude:

6 modernization or the electrical systea and process c·ontrol; ,

o optimization of well testing:

o enhancen\ent of personnel safe~y on the platf.oi:m: and,

0 il1sta'llation of a safer aean~ for handl.inq driliinq Qipe. well casing. an~ tubing~

The_ propos~d modifications. are desiqned· t-o modernize the ·equipme.nt and process conttols on the 25-year ~:,-ld platfoi:m. These modifications will hot incr~aser platfo£m. ~ell slots~ production capacity or substantially affec!; overall platform operations. SWEE>I intends to take advantaqe of technoloqical advanc~s by insuitlinq state-O'f-the-art equipment to replace the existing antiquatea equipment. The new equipment is consi,dei:ably· more reliable and. efficient and its installation witl improve safety and ease of op~rations.

1.1.2

:PBOPOSBD PT.iATFORM MODIFICATIONS

General Descrlptlon

The SWEPI proposal would result i~ a significant modification to the sat.ellite platform·. The satelli·te platform would be expanded fi::om one de.ck to tJ;lree •

. , ·This modification will allow the relocation of the office and crews quarters,. helicopter deck and electr;ical motor contr-01 center and the installation of a ',second -platforin· crane. These modif-ications ar~ more fully desci:ibed ic the follo~inq paragraphs.

Relocation of Qua'rters. Helideckir. an4 Motor cont.col canter '

SWEPI proposes to mov~- the quarters/offlce buildin9. helideck. and motor control center from the main platfo.rm. to the satellite platform. SWEPl°s propos·a-1

~ ·-· CAtiNQAH PAGE

~INUl"f ~AGE

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has several ~dvan~aqes over the present conf iquration: ii the~e. is greater safety in isolating pep;onnel _quar~er~ and ·electrical equipaent from. hydrocarbon. production equipment; 2) the r:elocation will enhance -the seismic stability Qf the main platform by optimizing weight distribution: 3) the relocation provides an oppoctunity to isc:>late the helideck f ~om the quarters by the construction of an air qap between ·the two._ This ail: gap will not only i:~duce noise and. vibraaon in t;he quart~rs building but will also reduce air turbulence on the heliport. thereby tedu~ing the engine torque necessary for takeo!f; and 4) the relocation of these faci~itfes to the satellite platform reduces equipment congestion on the main platform. Modular replaceaent of the electrical control ~oon ia planned to ainimize the duration and cost of construction aciivities.

Installation of Second Platform Crane

Installation of: a second platfo-rm crane on,. the main platfor~ is the other part of the ~WEPI ptoposa·i. This will .~.tovide crane li~.ting:.: c~pi.bi;li·ty for the entif:e drill deck and' will ·eliminate tli-e cur.rent need to hand roll d.cill pipe. ct~sinq ai;d tupifiq pn. ce~tain drill deck areas not cqv_e:ced ~Y. t-he _existinq c~ane. The practice of band-rollirt~~ oriii ,pipe .an~ other tubular ' goods - eonsideied an unnecessary- pe_rsonnel ~-injury risk. · ~

' Modificati9n of ~l~ctrica1 Systems .

SWEPI also pl~ns to modernize ~e ,p],a-tform ele.c::t·ric;al system. The installation of additional ·transformers is proposed to step down th~ voltage for use on the platform. Al-l platform. util·ities.. li!Uch ·as lighting .. Heating. ventilation and ail: conditions (HVAC). ..__ communicatlons. pumps. ~ir coJUpt:essors-.- and 9~rtain in~tx:umentation will remaiu e13ctrieal •

.. Standby power will be provided by ji· new l~O-kilowatt (kW) diesel. gen~rat.or o Thl.-s would replace the oeuri:ent s.tandqy system which powers onl.,l.f essential loads. incl~dinq emergen\:y lighting .• , in~ti~inent air compressors. aircr;af-t warning J.ights. and some m~scellaneous electtically· ppwered shutdown -equipment.

. ~

SHEP! also propose~ to· upgrade platform lightinq to ·meet or exceed API Recommended Praa~ice 14-F levels of i1·1umination. · These · iociific~tions - 'Will include connecting suff ic~ent lighting circuits to the standby power sy~0te!ll.

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CAUHOAil i'AGE.

MINUTL~.\Gf_

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11oa1f-ication -ot CoaJRunication_ sys~ea

Presently.• platform communications are carried over ~iqht hardwire telephone --1'1.nes inteqrated fnto both of the power cables and· over FCC-ap{>roved FM band two-way radios al-low communication witb shore. boats, helicopters. and other~ platforms-. SNEPt proposes 'to upgrade the system to provide oo~h a,tea-to-area phone-typ~- party lines -and· genet·a1 intl:irc_i>m secvice. Several new s~eaker-statlons will ais~ be·installed to enliance t:µe _-communicat;ioris sys·tem. · · ·

SWEPI i~ eonsiderinq the addition of a microwave communications ·dish on the platform. A microwave system may be _ desir~d to provi'de- C~1'lJllunieations capacity not ~nl~ for Platform EmmY'~ ~'~~~g but also for SWEPI's Beta Project. including Platform Elly, Platform Ellen. and Elatform Eureka. The ~eta ?rqject is cµr~en~ly channe~ed through microwave equipment located in the Do~ingliez Hills.

Modification of Deck D~a~nage

All dra±n water f•roJ!t, the upper deeks. including spillage-. rainwate~~ vessel drains. etc. a is t--.o \Je gathered by qrBY'ity into drain lines Whlch Will 'f!OW into a single sump tank located in tlie i.ower deck. Drainage from the lower ·deck and the· satellite ·deck will :emain unchanged. Lower deck -drainaJe ~i11 continue t·o be gathered to the 3!>0-qaflon··clos~d dra,in vessel suspended- be1ow the lower deck. · From this vessel. it wi11 be pumped to the sump tank on the lower deck. The fluif.i_s will then be. pumped into the bulk· fluids line and 'taken to shoJ:e. ~ No changes will ·be ·necessary o~ ~de t~- onshore. f~cil-ities "as a result of the proposed modernization of Platform Emmy.-

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Modification of ·s~nitary waste sy~tea

Relocatian of the crew quartets/off ice ~uilding to the satelli_.te: platform necessitates .aodifica'tions to th& exist;i~q sanitary ·.1aste system.~ In- order tb use s,pace more efficiently ~nd to m~D:imize sewage handling on the pl~tfOJ:!tl, · 'SifEPI proposes to install. a new state-of-the":":s-ri. packaged.. e-lect~ocat~lytic sewaqe treatment unl·t on t;he satell-ite plat£or~. This unit will be adequate to handle the per.maheht crew capacity on a continuous basis. as wel·J, as peak capacities during construction.- · · ·

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l>f.schacge of effluent to -th& oce•~ - which -aeets watei:. quality cequlations· will be achieved t~i:ouqh a -disposal caisson. SNEPI intend£.· to appiy .fQ.r _a 9 ,11.odi£ication ·,to the exis.ti.·ng pl~tf~rm ,NeD.~S discharge peciit -toi:_th,~se cha~ges.;-

' ' Oil Spill Contiµqency P.lan

-~WEPI. irii a .process sejar~~e f~om the proposed project. ~• in the procesa of revising its Spill Pi:evenf:ion:. Contr9l and <;ouritermeas·ure/Oil Spill Contingency Plan for its Huntington Beach leases. SWEPI willl' begin· opera~i~q un4er the -ne\tT pi.an- ~s" soon ~~ tli~ appropriate approvais are obtained. Changes on 'l:he ph~.tfoi:t'U will not alte.c SWEPI • s plans other than to necfa~Sit~ite minor updates to refei:er'l.ced vess&·!:. · ciapaciil~~, ~\tc. . __ · · .. --

Mo~if icatios~ :of P!atfprm Safety Systeae '

With the exception of minor repipinq arid ~eloc~tion of certain piec!Els of e.afety equipment d\iir, · ·t.o new system layouts. mod:it.icatibns to the safety: systems- will -be limited to th.e e:n~:tgen.cy· ·shutdo.wn system. The new eme.Cqency shutdown s~~tem- incorporates a new pneumatic fusible plug lot>p and .emergei;icy .shut down (ESD) panel. contcols wi~hiil. th~- :fusible pluq loop are t-o be provided to open propei deluge valvea~ -~ni,tiate the proper platfo?:~ shutdown. an'\ to lnterface with the existing combustible gas detection system. Th~ .new system "s. desiqned tQ. consolidate and iaprove platform emergency shutdown capa~ilites arid procedures.

New emergency shutdown stat-ions wil:l be added to the platform an~ a complete fus~ble p,l-uq· loop ·system w!ll be run throughout the pl·at.fo.ca 1as required. The fusible plug loop system i's a. fire ~uppr.es~.,ion -~ystem which is const:antly- un.~er pressure.,, -'Tb.e systeld operates wnen the fusible plug C~ mf!t:c;l plug which melts .at a certain -te.mperature), fails fi~ld deluges the f ii:e. The heat de.tee tors within ~:lo dr.1.~in tank area arQ also stated . for z:eraoval .and - r•p'.lacement with fusible plug loQps. · ..

All flowline hiqh/low pressure seh~or·~., and well shutdown solenoids are to be relocated -~•i'i,tra:uy to a n~w solenoid valve. panel. ·. 1 :,

d1i

It is proposed· t ~=-.t the existing annuI\ciat;~i: and relay panel be relocat~J to the satellite platfora. It ~ust ~herefore be rewired to interface· with the panels described above as well as to interface with any ne"!

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G\UNDA;l .-AOE

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equipment. Also, the annunciator and· relay: panel aust, be rewired '~O provide first-out shutdown loqic as outl~n.ed by the sat ety Analysis 'Function Evaluation (SAF..f:) ch.acts as ou.tlined. in API Rer-ommen~~~- Practice l4-C •

. CONS't!UCTIQ!i

Const.cuction activi'tiea foe ~he P'latfoz:m E111my upgrade a.ce divided into four phases:

o Preconstcuction activities

o T~anspo~~ation and i~st~llati9~.

o Facilities hookup

o Checkout

Offshore p.ceconstruction activities are .c¢quired to prepai:e the f~cility for the impend-~ng_ modifications. Prior to arrival of the new equipment module~. existing systems must be modified to, c.omplement the new installations and to minimize total shut-in time fot the existing ·,:a~ility~ PtOd\1Cti~n wi~l be sn~t-in \ust prioi: t9 the atz:lval ot "b•-~ equip•an~ transpoit~~ion and d~rrick bacgoa.

Pceconstcuction activities include onsho~e fabrication of new modules c1ncludinq quarto.cs. holideck, and electrical control room) and individual equipment items (pump ~kids, tanks, etc.). These ~odules ~re to be transported to the offsho:ce sit~ .and J.nstalled on .the facility by deri;ic~ barqesv ·

Tcanapoctotlon and inat•llation activl~iea include movement of all equl~men~ Jnd modulo• f tQ• the ~ho~• to Platfocm Emmy foe in~tallatlon. . ~hen all new equipment and modules have, been installed, they will ~e hooked up to the existing facility.

Qnce· hookup is, completed, pre~startup checkouts will be pe:cf ocmed on all process and utiii~y systeas includinq pipinq, .electtical. and inst.r.umentation aubayatems. Thoae checki are conducted 'to ensure that ttUl t~cilit.y 1.1 001'\'lete ,and Q'(lt~A.t~onallf.·. t•&dy" (O~ cestact. The facility vlll th~n b~ al6wly btouqht u~ to its present p~oduction capacity by aaqu~nti~lly Ees~arting individual producing ~ells.

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A aimpli:fied consti:uction schedule ,for both onshore and .of.f·shore phases. of the ,p1at'f ora '!li•Y upcnade project is presented in Figure 2-1. The coaplete schedule shows onghore equipment and structural fabricatior. will be performed during a 10-month period. Peak offshore construction activity is scheduled for May through Auqust 1.9~8. with comp.letion schedule~ for September 1988.

2~3 MANPOWER

2.4 •,

The anticipated· off shore work force· is pi:esented in Table 2-l.

l'!OUIPMl!!NT

Pre.:.lnstat.lat·;_on p~eparatox:y - work and ·final aodule hookup requires w~lding 'machines. ti~iiity air compressoi:s. platform cranes·. &,upply boats. and helicopters.

SWEP·I plans to use standard offshore constru.ction e;:tdpment duting installation of . the modules. The .A equiproent is' planr,.ed ·for u13e 7 days per week for the -duration of the construction effocts. which is esti~ated to· last 14 tci: 16 weeks·. Installation equlpme~t is to -operate ~ontinuousl,y (24 hours per day. 7 days per, week) 'Whife equipment settinCJ and tie-down are in progress. Equipment setting and tie-down are scheduled for a maximum of one week. but could be cqmpleted as quickly as ~wo days. weather p~rmittinq·

Since the i;>latform has e_x~stinq ei:ectrical power supply from shore. it ill antici~ated that all construction po:.1ei: requirements can be drawn f'rom the onshore- ~owe~ ~upplY.• If utilizing the platform power ·!!.llif~ly pi:oves impractical. electrical generators can be bi:ouqht onto the ·pl'atform to sµpply construction· power needs.

, 2· .. 5 WASTE MATERIALS

Ge.ue1:al· so1.-id· and liquid waste materials are to be stored in appcopr:iate containers and- transported to shore foL disposal at -approved sites.

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1765S

Approximately 15 barrels of waste hydrotest water is estimated to remain after the hydrotest activit'les. The water will be tasted to ensure compliance with toxicity limitations and shipped to ~hpre for processing. If the test shows noncompliance. the waste will be colle.eted in .a tank and transported to .shore for disposal at an approved site.

Consumable material used in the installation phase is expected to include diesel fue.l. welding rods. oxyqen. acetylene. fresh water.. food. and miscellaneous personal items. This material is· to be purchased locally and transported by supply boats to Platform Emmy from the most conve~ient port.

TRANSPORTA'i'ION

Eqµipm~nt deck and derrick b~r.qes will b~ ~se-d to transport the new packages to P.l'atform EJntnY ~ ~nd to haul pff ·existing equipment for· salvage. ·The supply boat is scheduled to tun to port every other day. It is estimated that the .supply boat and heilcopt~r will operate approximately 4 hours per day.

Transportation will also be r~qui~ed for personnel./cr.ew change outs. and with deiivery of materials and sup?lies to suppprt -the ~po~up ~~fo~t. Durinq final hookup. it is anticipated t~at the crews will. c-ither be. temporarily quar_tered on the p~atform. or that crew chanqes wil-1 be arranged during daylight hours via helicopter. Due to t;lle platfor~s proxiai ty to shore. the use of a crew boat is not anticipated at this time. ·

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Table 2-1

ANTIClfATED CONSTRUCTION WOR~ ·FORCE

Phase D1uatlon of c~w

Shift Length Shifts

.,-,of Con~ction fhasy {weelssl ~

(boursl · atD~Y

· ,J>(econs.trUctips;i ·activities

6 1~ 12 1

-

T~~ol)and '12 · installation

l .~ 2

f~ciliticsllopk µp . s 1~ \2 2 ~t

Ch~kout t.s lO }2

1 .

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l : . ' :'1~ ' "

1

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· JOB DESCRIPTION . _ ': I JAN I FEB 'I MAR I . APR I MAY I JUN I JUL I AUG I Sl:PT I oCr I N:N I 00:

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: MCSIJZE OFFSHORE

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Platform Emmy Cons~ruction &.hedul~ ·· i 1'10URE} . . . _1 ·2:1 0-, ·.

SCA Tl 'LANDS COMMISSION

ENVIRONMENTAL IMPACT ASS~SSMENT CHECKLIST - PART 11 Fit. Ref,• W 40031 FOJm l3.2q (7/82)

I. DACkGROUND INFc;JllMAT«lN •

A. Appl~nt: Shell1 Western Explo~~t~~~~ P~o_d_u_c_t_i_q_n_In __ c_··~...,_-------~·

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8. ¢flecklist Date: oi. .L 1-':· L ~8 __ .. c. Contact Person: Randal.-1 Moorv

" - ::- ... -. --- .. -· Telephone:.( __9~9_:t_3~~":.L~?~.-- _

o. f>urpose: • .!fo~~?:c;at~~~.,~f Pl~t~o;ui ~y ______ . ---~_:~---' ' , , l --- ___ ...... _ -- .. -. -- - --- ·- ... --· ~- --- -- ------·- --~------ ----

E. location: ~-tat~ _<?il .C!tl_<i :g~~. -~~-a-~~--4?~. i.L Offsl.!q~e. Jj~t_!~gt$>11~~~-~h --~· _

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---- --- ----- ---- -------r---------_,--... -· ~-·· -- - ·--- --.,.-- ··-----4----------- ___ .. -L-...

·, (;, ;p,ersons Contacted:. -r- ··-- ---- -- - -- - ' ' ·--.. -- ... - .. ------.,;,.-.:..-.. -·--~-, ...... -~-· ..... -i- ... 1·- . -- - -·-1 - - -.- . ··- -·-· -·----'"- -·-> __ ,.....---!- --- - .A.'·

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- - - ---- .... --· -- - -- ---------------------------------II. ENVfRONPJrENTAL IMPACTS. (Explain all "yes" and ''mayha" ar>sMlf}

!

A. l}:artlt. Will the propi>sa' 1esult in:

1'. Unstable earth conditiO!r\S or changes in geologic su~structures? ••••••••••• ·- •••••••••• :. '. •••• • >

2. Disruptions. displacemeilts. compaction, or overcq~:iring of the soil? ••••••••••.•••••• ~ •.••••• , -•••

3. Change in topography or ~'found surfE ce relief features? •••••••••••••••• '" •••••••. ., •••• '. ••••

4, The destrlJl:tion, covering, oMnodiflcc tion nf any unique geologic or·physical features? •••••.• · ••••••••

5. Any increase in wind or water erosion of soils .. tither Ofl or off the site? ......................... .

6. Changes in deposition or erosion of,,beacil sands •. or .cluioges .in siltation. dtPQS.itton pr .erosion which may modify,the channel of 1 river or streah'"\ or lhe bed of the ocean or any bay. inlet, or IJSil~· ~ ...... ~':'::~Wi-~~--iii'

7. Exposure of alll>eopte· or property to"{lfnlogle-hazards such as eanhquakjS, landsll failure. or similar h•zards? •••••••••••••••••••••••••••••••••••••••

. ~ . ' :. ; . . ~ ' -. ,,. ~ "' . . ... . . . . "· . . . . : . . . . : . . . " . .. . ' ~ "

-· • • • • • !. •• - • • • ' • • - • - , • "' •

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~, The c1t?athJn of object1onal>lt! ol101s?. . • . • • . • • .•.•••.•••••.••• , •••••••••••••.••••• •

3. Altcr:it1cn oi air movement, moisture or temperature, or any change in clima~e, either local Iv or re_gionallyl. :::

h'1111•r. Will thll propoSill resul l in: Ctlilll!l"\ "' the currents, or the cQ111se 01 d11ec\1on of water mu~rn!lnts. 10 1t1ther marine or h'5h'vvaters7 ••

2 Cham~s m absorption rates, drainage pdtterns. or the rate and ;imounl of surface water ruoafl? •••••. • •••

3. Alterations to the course or flow ot f(ood waters? . • • • • • • • . • • • • • • • _. ••••••••••• -· • , ..... :

·4. Cttangc in the amount ol surface water 10 ~V water body> .•.••••••••••••••••. , •••• , • , •••••

!) 01tcl\~1~ mto \utbc:• ~attrs, qr In a1w a\i.tat1on ol ~\1dac:1 wa\tf qu~liW, \nc\uding but.not limi\ed tu

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bt~ 1 ! l lxi

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\tfl\Oott:,\\\ltt, l\1\\0\lftd o~~n '~ \Ut\l\d\tv?. . • , . . • . • • . • . • •••••.....•• ~ ••••• LJ-~\ t \ fj \ \ \X)

6 A\ttta~'°" at the dlrc<:t oo or rate ot now ot gtou"'\ "'~\tnl . . . • • . . .•.........• ~ •..•• , .•.

7. Chinge 1n the quint1W ot ground .. nters. e1thtr th tough direct add1\ions or wi\hdr•ils. or 1hfouth lflttr· f \ \ ·l, lY 1

ctpt1on ol iln aQuifer by cuts or excavations? • • • • • • • • • • • • • .. • • • • • • • • • • • • • •••••. • ...... • • l r• 1

8. Substantial reduction in the amount of water otherwise •v11\able for publi:-:Nater suppliff1 ••• , • • • • • • .. lJ .\ \ \X \ 9 t:.xpo'fult of PfOl\~t 01 pro~rty to w~teMt\a\td h1n1ds iuch &' H~ing at tidal wives?· •••••••• • • • • • \ . .\ \ \ · ~'\

lO S1Qmhc;mt ch;tn~$ 10 the tt!m1)tr1tute. Uow 01 chemical ,content ot ,u,tace th«rnll •"'9\? ... ~ . . . . . . . t'. l · \ \ \X \

O. l'/11111 l.1(c•. Will the proi>oSJI r~u1t 1n: '

1. Char·;ye in the cfivers1tv of s11ecies. or number of anv species cf plants (including trees, shrubs, gran, croils. ".rl -, ,. \, Ix\ ;ind aquoitic plants)? ••••.•••••••••••••••••••••••••••••••••••••••••••••••••• ~ • • •

1. Reducuun ol the numbl'l'S pt any unique, rare or endanger~ species of plants?. • • • • • • • • • • • • • • • • • • • [1 \ L \X \,

3 !::~~~···.·~ .~'. ".".". ·~.''.''.'. ~'. ~'.'~'.'. '~'.·. '.~ '.'~'.'. ~·. i~. '. ''.~''.''.'. '.~ '.".' ."~'.':''.1.'~1;~1'.~~1

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E t11imal 1.ifi: Will the proposlll result in: 1: Chang1? in the diversity of species, or numbers of anv !.pecies of animals (birds, land animals including

'reptiles. fish and shellfish, benthic organisms. or insects)? •••••••••••••••••••••••••.••••••• ~ •

2. Reducuon pf the num.~~rs ot 111y unique, rare or endangered species of anim:lls? •••••••••••••••••••

3 Introduction of new spi?cies of animals into.an are~; or result in a b1mier-to the migration o:.movamentof :ioima1s? • ~ •••••••••••••••••••••••••••••••••••••••••••.••••• ,. •••••••••••••.•

• 4. De~euoration to existinit fish or wildlife habitat? ••••••••••••••••••••••••••• : ••• : ••••••••

F ,,;,\C". Will the propO?I result ir.: , '' 1. lncrra~o 1n existing noise levels? •••••••••••••••••••••••••••••••••••••••••••••••••••

• 2. Exposure ot people to severe noise lev.ils? ••.••••••••••• ~ •••••••••••••••••••••••••••••

G. l.ixl~r aml W11r«". Wilt ti.le proposa\ result in: - ~ . ' ........... .

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1. 1'1fe production oi new light or glare? ••••••••••••••••••••••••••••••

H !.and (,:,,.-. Will the proposal result in: 't. A sobsu1nt1al_ alteration of the present or planned land use of an uea? ••••••••••••••••• , •. • • •. • • • • 0 [ J (;Kl Sat11ral Rr~OllTC"«'S. Will \he propcisal result in:

·tncrease in the rate of use of any natural resources?. • • • • • • • • • • • • • • • • • • • • • • • • • • • • • ... • • • • • • [] [ l {)cl 2 'Substantial depletion of any nonrenewable resources? ••••••••••••••••••••••••••••• •• • • • • • • [l { ) ,PH

.,

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J. Risk''' Up.~l't. Docs the p1oposal result in:

1. A risk of an explo;ion or the release Qf hazardous substances (including, but not limited t9, oil, pesticides, chemicals, or radia:ion) in the event of an ac\:idtnt or upset con~itions? ••••••• , •••••••••••••••••

2. Possible interference with emergency response plan or an em•!uencv .-.·acuatiori plan? •••••••••••••••

' K. Population. Will the proposal result in:

1. The alieraticin, distribution, density, or growth rate of the h\lfMn population of the •ea? w •••••••••••

l. 1/ousfn:. Will the proposal result In:

1. Affecting existing housing, or create a demand for additional housing? •••••••••••••••••••••••••

M. Transportation/Circulation. Will the proposal result in:

1. G~neration of substantial additional vehicular movement? •••••••••••• ,. • _, •••••••••••••• , ••••

2. Affacting existing parking facilities, or,create a demand for new parking? ••••••••••••••••••••••••

3. SutHtantial impact upon existing transportation systems? . • • • • • • • • • • • • • • • • • • • • • • • • • • • • ••••

4. Alterations to present pattems of circulation or movement of people and/or goods? ••••••••••••••••

5. Alterations to waterborne, rail, or air traffic? •••••••••••••• , ••••• , •••••••••••••••••••••

6. Increase in traffic hazards to motor vehicles, blcyctim, or pedestrians? •••••••••••• ~ ••••••••••••

N. Public S~tF!ces. Will the proposal have an· effect upon, or mult in a -need for new or alt'1red govem~ntal ser11ices ir- any of the follo..ving areas:

1. Fire protection? ........•.......•..... It ••••••••••••• , ........................ ,, •

2. Police protection? ..... ~ .......... , ........... ~ ................................... .

3. SctaoOls? ............................... ; ................................... .

4. Parks and other recreational facilities? •.••••••••••••••• ., •••••••••••••••••••••••••••••

5. Maintenance of public1acilities, inclur'ing roads? •• "'" •••••••••••••••••••••••• ~ ••••••• , •• , . ' 6. Other governmental services? • ............................................... , ...... .

0. En~rv·. Will the proposal result in:

VIS Maybe No

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'1. Use of substantial amounts of fuel or energy? •••••••••••••••••••••••••••••••••• : • • • • • • • CJ 0 ~ 2. Subst11ntial increase in demand upon existing sources ofenlfiv, or rlltjutre the devetOl'f'l1e'ntofnewsour~? • - 0 0, !Kl

P. Utilitlts. Will the proposal result In a need for new systems, or sutiStantial 'altmtiom to the foll0wlnt U111lties:

1 .... 'Pc,~er or natural gas? • .......................................................... :, 0 0 IX:] 2. Communication systems? •••••••••••••••••••••• 1 •••••••••••••••••• • • • • • • • • • • • • • •, q 0. ~ 3. Wat!r? •••••• -· •••••••••••••••••••••••••••••••••••••••••••••••• • • • • • • • • • • • • 0 P l&J 4. Sewer or septic tit~? ••••••••••••••••••• ·- •••••••••••••• _,. •••••••••• • •••• : • • • • ~- 0 0 tit]

" ' (• . '

'5, Storm water drainage? •••••••••••••••••••••••••••••••••••••••••••••••• ~ • _ • •• "' • • 0 0 KJ 6. Solid waste and disposal? •••• , ••••••••••••••••••••••••••••••••••••••••••••••• • • • • _Q '[j lKJ

~ { . . ~ ~

a. Human lltaltlt. Will the proposal result in:

1. Creation of an·-1 health hazard or potential health hazard (excluding mental health)? , ••••••• : ••••••• '

2. E~posure of people to potential health hazards? •••••••••••••••••••••••••••••• _ •••••••••• , '

R. At'Sthetk~ Will the proposal ttsult in:

1. The obstruction of any scenic vista or view cpen to the public, or wilt the proposat·mu\t. in,ihe creation of an aestheticallv offensive site oren to public view? •••••••• -••••••••••••••••••••••••••••••

S. Rtcrtalion. Will the proposal result in:

1._ An-impact upon the quality or quantity ohxist!ng recreational opportunitift?. • • • • • • •••• n.,, •• -.. -

CAlf~iJAll PAGIE

-3- Mt~::J(f .. AGE.

i. ("11/11m1/ /fr.,1111rl'f'.\. Yes ~'aybl! No

1. \VIII thr pm1msal 11m11t m thl! altc1auon of 9r the destruction of a 1uch1storic or histo11c archeologital site?. {. } \ I \XI 2. Will the proposal result in adverse physical or aesthetic eff~cts to a prehistoric or historic building,

structure. or object? •.•...••• '. •••••••.••••••••••••••••• ~ • • • • • • • • • • • • • • • • • • • • • • • [l I I IX I

.9 J. ~a~~~h~ ~ro_p~~a.I ~~~c. ~h.e.~o.t~~t:a'. ~~ ~~~ .a.~h.y~i~.~~~.v:'1.i~~~~~1~.•!'.':.~i~~.~t~~i~~~l.t~r.a~ LI l. I !XI 4 Will the proposal restrict existing religious or sacred u'~ within the pntential impact areal • • • • • • • • • • • • 0 LI \~I

U Munda1t~r .- Fi11dinxs oJ .Wxnifir1mu. 1. ~oes:.1he project have the·p·otential to degraCle th~quatitvof th'e env!romr.!lnt,rtdllCt th_t h~bitlt of a fish or

wild I fe sp~jes. cause a fish or.wildlife population to drop below Sllf-wstaining levtk, thretten to eliminite , a plarit or animal comrounity. reduce the n'umbtr or mtrict the range of • rare or .nct11,ngertd plant or [] r · 1 ·1 x-1 animal or eliminate important examples of the inai<?' perlpds of California history or prehistorv7. • • • • • • • _ 1

~. 0 Does the project 'lave ·the P.Dtential !O achievt< short·term •. to:th• dis!dv1ntage of loni·term, environmental goats? .......................... _ ............................. " •.••••••.••.•. • ..•• .- .. . .

3. Dots'\he project have impacts which are individually timittct;but C$.lmutafr1eiv considtr~le? •••••••••• . , '" ~ , '

4. ooe-5' the project have environmental effects which will cause substantial adverse tfi'ects on human bcinga, either dl.ecttv or indirlctly? ...•• " ................. - • \ •.• , .. 1; •••• , "!. •• ~ ..... • •. ~ •••• •• ·~· •·

m. OISCU~Slot·rOF ENVIRONMENTA~ EVA!.UATION (Se1.CommlititS'AttaclredJ l I "

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IV. PRELlMINARV DETERMINATION I ; -/

[J Cl l~\ p [l'~ D lJ htl

On the basis of 1his·iiiitial evaluation: ' ' . [l 1 find th~ propnsed project COULD NOT have• significant effect on th• environment, and a NEGATIVE DECLARATION will!'

I be prepared. - 1 • ' '

f] ! find that-although' the prop~eP. project ~uld ha~~ s,ignific.,t e.ff~ on the tnvii'~eril, .,,, will not~ a !itnlft~ant effect, 10,'thls case becaust the·m1t1gat1on measures descrlb~ on an attaChtd .sheet h~y~ t>ffn added to dtt proftct. A NEGATIVE.

DECLARATION will be prepared.

I ] I find the propo~ed project MAY have ;a signifi~;al'!t·effec~ on tht en'ti~nmtflt, and an ENVSRoHMENTAL IMPACT REPbR'11' 1s requied. , ·

e. Date: I /_ ... -

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II.A. 7

II.B.ol

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The installation, of additional decks to tbe exist·i:ng sateliite p1atform may ~hange. how the satellite. platform jacket responds to seismic shaking. At this time it is upknown how the ne~ platfor• configuration wi11 r~spond.

The ·new design :will have to t:~ ·be evaiuated and approv~d by a. structural enqineer registered by the Sta-ce of Ca·lifornia. This evaluation will assess the CGsponse Of the t:;trUctUte to S~ismic shaking. In the event it is determinecl that the satellite platfor.m would sµstain. disab'l~ng daaaqe. a new des"ign will be required. If such ·new design is substantial+y ch~ng9d from t~e ex~~ting proposal. additional environmental analysis 'lio:q!l be neces~ary.

!

Air emissions ~osociated with the pr<>posed ~latfo:m Emmy modific_:-iti9ns a.re dis~ussed '. :-i- this e"cti~n. During the cgnstruction phase. mir.or emissio11s will be generated by barge transport of equipment modules and increased deliver·ies of supplies and personnel via supply boat and heLicopter. The existi,nq diesel platform crane will- also be used to unload the vessels and t9 mo'll'e equipment and s'1ppl ies about the platf:orm. ~os\. of the same equil>ment is used to service Che existing operationa'l platform. sueµ that only small inc:r:emental increases. in emissions will occur intermittently 'during the 14 to 16-waek.period while the plat::form is shut in ~<Jr const.ruction. All other tools and equipment utilized on the plaform to complete the proposed .. ,modifications wil·l operate on ~lectric powec.

It i~ likely that fu~ure ope~a~i~nal eaissiona associated with the platform following the prcposed ~egrades are expectf~d t~ deceease sliqhtly relat·ive to present-day f~~ility operations due to the removal of a 700 ~p, diesel powered mud- p~mp.

All equipment on the platform will operat'' in accordance with· SCAQMD requireuents.

construction Phase Emissions: The major p~ases for the proposed plat~orm modification wil~ consiat of:

(1.) preconsti::uction act.ivities;

(2) tra spoi::tation. equipment:

and

('3) ~acilities hookup; and

-l-

instal.J;ation of new

(~) checkout of new· syst_ems.

Only the second category of construction activity~ transpor"tation. and installation. of new equipaent will genera~e appreciable air emissions. These emissions and th~ corresp~ndinq · construction equipment are summarized in Tables 3.2-1 and .3.2-2. These tables also indicate their usaqe. 6n the basis of this information, the air qu.,lity effects. associated with the proposed aodifications are insignificant.

Operational Emissions: Operations on Platform E11111y following completion of the p:coposed ·modifications will be nearly identical. in teems of pollutant emissions, to those of the present platform. The only equipment changes will be:

(l)

(2)

(3)

retirement of an existing 700-hp diesel-£ ired mud punip:

the addition of a second 200-hp diesel pl~tf orm crane: ·and

repla~ement of the sokw staqd by generator with a lSOkw gen•catqr.

hir quality factors fo~ the propoaed crane emissions', the stack parameters and emission rates are as follows:

S.tack heiqht: seack diameter: Exhau~t temperature Exhaust exit veiocity

98'2" above MLLW 4 It 16200 142.7 ft/sec

Assumi~q a load factor of 40\ for the crane operations, the emission rates ace as follows:

NOx: 2.46 lb/hr: CO: W.53 lb/hr: THC: 0·.-20 lb/hr: ROC: 10 .18 lb/~r: sb2 0.17 lb/h~;- TSP: 0.17 lb/hr. , . ,

SOURCE: EPA Docum~nt AP~42, r Table-'3. 3-1, "Gasoline and Diesel· Industrial Equ'ipment." ·

Under existinq SCAQMD Rule 219, the 200 hp diesel platfo~m crane is exempt from regulation, but could become regulated in mid-1988. All other existinq equipment will continue to operate in accordance with existing SCAQMD requirements.

-2-

\ I

11.c.s

11.E.4

11.F.l

11.J.l.

. '

11.M.5

As such, the proposed modi'fi'cati~ns will produce no adverse air quality impacts ducinq the opec_ational a phase: in fact6 a net air quality impact aay reeult . .., because of the removal of the 200 hp mud pump. Potential discharge of diesel fuel into -.the. marine environment from an accidental spill froa a construction vessel could ~esult in impactu to marine wateJ: qualitye The pro~ability of a significant diese'l spill tr om a construction vessel is. however, unlikely. ~urther, the oil spill contingency plan and existing on site ~aterial would provide for rapid containment and clean up if such a spil'l occurred.

Deterioration of fish habitat is possible in the event of an diesel oil spill from a construction vessel. As stated before. this impact is of low probability and its siqnif icance substantially reduced because any spill could be co1itained and cleaned up rapidly.

Increased noise would occur on the P'latfor:m and onshore fabrication areas due to construction aceivities. These increased ~noises 'would not be significant. however, since they could not be heard above those sounds produced by existing operations on ~he platform and fabrication areas.

The construction activity poses the increased ~isk of a diesel oil spill because of fuel on the construction vessels. As previously stated. ,the probability -of a spill fto_a a construction veaael is consid~r:ed unlikely. Fucthet, any spill would be addrassed immediat~ly because of the oil spill containment capabilities already associated with platform operations. In addition, the proposed project will be addressed in StrePt' s updated oil spill contingency plan. ·

Marine traffic support activities associated with the construction phase of the proposed platform modifications ~ill iqclude:

Cl)\\'lltt\\~t.\on l:'h••• .. t \' to l.6 "o•k•)

Der-rlclt barge TWO l:OUnd ttips total and tugs

Supply boat An additionat 2 to 3 round ~rips per week over current ope.cations

-3-

! I

Il.R.l

Il.S.1.

l765S •

Helicopter An increase of 5 cound tJ:ips ~er day ovet current oper~tions

. l

After construction, marine tcaff io will ·revert to current operational levels. As auch. there will be no permanent, long-teem effects attributable to the

1·,­

platfotm modi~ications.

These increased opera.tlons ehould have no sigriificant impact on ex~sting v·essel traffic in the area.

The ~roposed modifications of E•my will add tvo new decks to the satellite platfor~ and a s•cond platfQrm crane. A photo aiaulation Analysis of the ·modifications as proposed v.as done to coapace the existing view of the platfocm with tho aodlfied. platform. Fouc- vantaqe points were .used to evaluate the 'aesthe.tic impact. Ono view was troa Bolaa Chica Beach State Park due No.cth froa the platfora,. the second view was ttle closest onahoce location ftoa the platform, the thiird wa.11 on the beach due east of the platform, and the fourth was.' fz:om. the Huntington Beach pier. The four view locations are shown 9n the attached f iqure,

'11he proposed modifications to th• platform were readily visible only f'rom the location due East of the platform and from Huntinqton Beach Pie.c. From each of these locations one could observe that the sate(Llite ,platform had increased in size. However, this increase is not considered siqnif icant due to the presence of the Existinq main platform directly adjacent to the satellite- and 't:o · oth&.c platforms visible from these two vantage points.

An impact to the quality of recreation ic po..ssible in the event that diesel oil f roa a construction vessel reaches the beach. Such an oil spill is considered unlikely and the pcobapility of it reaching shore is even more remote because of the p~esence of existing oi~ spill cQntainaent capabilities on the platfoc•.

--- . ·- .,_.,_" . .,.,.-.er t:S !l • !~ • • ·'lF __ __...'/._'LL .... ______ _

'fable 3.2-1

PROJECTED CONSTRUCTION PHASE INCREMENT A~ EQVIP?\'iENT USAGE

Power Present Usage Anticipnted Incrcmcnbl

Rating Fuel for Normal Usage During ,usage During

~uipment .JhnL ~ fl;nfonn om<mri0ns Q>nsrr~9tion tonmvcrion

.

Derrick ~arge ·s.ooo Diesel not used i trips t~tnl 2-mps 8 hfs/trip 8 hrS/aip ,

Tug 900 Diesel notµsed 2-.ttips total 2 tiips s·hrsltriP 8,\u'S:trip

Tug 2,000· .Diesel 11otus~1·

~2 Uips tbtal 2 trips s hrsl • · s brS/tr\'P . UlP

Supply Boat 2,250 Di~sel 4-S trips/week 1 ttjp/day 2-3 trips/day

2 hrs/uip 2 hfSltriP for 105 days*

Helicopter 2-cngiilc Diesel 10 trips/day ,15 trips/day Stri~day

c. Bell 212

for OSdays•

E:xisµnr. 187 Diesel 1.5 hrs/day 2·brS/day 0.5 hrs/day

Pll.\tfonn Crane

for 105 days*

•total constrUction equipment usage based on 7-day work week over 15-wcek period .

. .

1

% ri'

. . . ~ ~ .,..__:·· " ~

.; . . - .. . . . - ..

. . .

II•

"

" i .

! I

~ s a .s ... $3 '·l' ··!

·. . ' _.. .,:

-

~Barge

900HpTug,

2000HpTug .

. )

Suppl7Bolt " lid~ (Bcll.212)

e 'f:lhft" 3;2.1

rROJF.CTF.D TOTAL AND INCRF.MF.NTAI. ro!.!.UTA'NT F.l\USSlf,jNS FOK­PLATFORM EMMY l\1(>ni~!!:J\TION$

CONSTRUCTION rnAsF.

...... - ~ ~

"

-'-

Maximum Hom ly Emissions I Totnl Cons!IUCtion Period Emi~ions -. - !~~Jn Em1~ ~'° I CortroucliorJ'.{lb~ "" , (lb.'hr) (lb)

' voe . 1.S 62.4 6.2 J.6 16.2 120.0 998.4 99.2 25.6 259.2 120.0 998.4 99.~! 25.6

0.9 3.7 0.7 0.3 1.4 14.4 59.2 11.2 4.8 22.4 ,14 • .C S9.2 JI.?. 4.8

2.1 JS.9 1.6 0.9 6.2 33.6· 254.4 '25.6 14,4 99.2 33.6 254.4 2S.(i - 14.4

2.1 17.4 1.6 1.6 3.0 441.0 3,654.0 336.0 336.0 630.0 189.0 1_566.0 144.(t f44~

•'

•

-f Emission

Face or

259.2 - a

~.4. ' b .. 99.2 b

i?O.Oi ~

·' . 0.4.. 1.1 .. o.s.. 0.9 .. 11.4•• 1.260.o 3,46~.o 1,s1s.o 2.835.o 35,910.tl· '420.0 1,155.0 525.() 9"5.0 l 1.970.0' d

Ex~•g J>1alf Qr1n CnhC 0.2 2.9 0.2 10.2 0.6 42.0 609.0 42.0 42.0 126.0 IO;S 152.3 10.!i 10.S - 31.S e

f

~··

':'.

-:f'"~

l t

~

·.~l .1

•. ; • <

• Em~ increases are calculated. :is lhe diff crcm:c 'between construction pha.'\c emissions and the emissions that ~Id oo;ur due tO opei"ltion-OC.thC 6isting .- t , I

platform oven 15-wcck pctiod. . :, .. ., Emis$ions ror helicopter arc expressed in terms of lb per landing·l:lkcorr cycle, rather 1h.1n lb,'hr.

••• Maximum hoUrly cmi~ions will not occur nl the same time for nil equipment. Therefore, maximum hourly emissions arc itot l«?talcd.

' l "

I 1.

L Denick barge emission factors taken from U.S. EPA Document AP-42, Comnifa!ion of Air fyllutant Emission Fadots, Four!h Editioft.,Jable 3.4·1. "Emission:, _ . f Factors for Stationing Large-Bore Oicscl and Dual Fi!cd Engines." A full power fuel consumption rate of'.208 gaf.lhr and 8,000 ~p full p,QWC(~ting were assumed.· , ;

b. Tug boe1 emission r~tors for 2,000 hp and 900 hp tugs w~l!kcn f~rn AP-42, Table 11-3.3. "DicscJ Vessel Emissioo Factors by operjting.frfode• • _Fac&ol'$ "' ~ID 213 power setting (maneuvering) wcte used. - ~ · ,,

c. Supply~ Cl'll~on factors were tnkcn from AP-42, Tablei ll-3.3, ·oicscl Vcs.>cl Emissior. Factm'for Operating Mode." Factors for 2500 hp~ilh ~2/3 po~-' i lldting (maneuwerini> were used. , · " --· '

d. He)~ emission factors were taken from AP-42, Tab!c 3,2.1·3, "Emission Factors per Aircrnft Landing-Takeoff Cycle.• Factors for 2-enzil?C hctic.ers Mre 1·

~ > • ' t 1'• .. "

e. Plat.form crn:anissjon facaors wttc taken from AP-42. Tobie 3.3-1, "Emis.i;ion Focrorn for Gn~otl~ and D~l Powered Jndust1i.11 EquipmenL • ;:~~ . ~~· J ........ - -

HUNTIN-GTQN

. Photographtc Vsntage Points

UlENDARPA

Al·ll MINUTE PAGE

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