Statoil

Eastern GOM OCS Air Permitting Project



### Statoil - Maersk Developer

Welding Activities Emissions Calculations

Parameters

Engine Type Electric - Powered by Rig Engines

Fuel Type Not Applicable

Hours of Operation (days/yr) 180

Maximum Horsepower Not Applicable

Amount of Electrode Used per Day (lbs/day) 1.3

Amount of Electrode Used per Year (lbs/yr) 241.2 Emissions Summary

Emission Factor

(lb/10 3 lb of

electrode used) 1 (lbs/hr) (tpy) lb/yr

81.6 4.6E-03 0.010 19.68

Chromium Compounds 2.53 1.4E-04 3.1E-04 0.61

Chromium VI Compounds 1.88 1.0E-04 2.3E-04 0.45

Cobalt Compounds 0.001 5.6E-08 1.2E-07 2.4E-04

Manganese Compounds 23.2 1.3E-03 2.8E-03 5.60

Nickel Compounds 1.71 9.5E-05 2.1E-04 0.41

Lead Compounds 0.162 9.0E-06 2.0E-05 0.04

Emission Factor References

Sample Calculations

Pounds of electrode (lb/day) x Emission Factor (lb pollutant/1000 lb electrode) / Hours per Day (24 hr /day) = Emissions (lb/hr)

Emissions (lb/hr) x Hours per day (24 hrs/dy) x Hou rs of Operation (180 days/yr) / 2000 lbs/ton = Emis sions (tpy) 1. Emission factors for fumes produced during weldi ng activities are from AP-42, Table 12.19-1 (PM-10 Emission Factors for

Welding Operations) and Table 12.19-2 (Hazardous Ai r Pollutant Emission Factors for Welding Operations ), 1/95. Emissions of

fumes are conservatively estimated to allow for use of any electrode type; therefore, emissions are ba sed on the highest

emission factors per pollutant regardless of electr ode type.

Pollutant Calculated Emission Rates

PM/PM-10/PM2.5

Welding Activities ENVIRON International CorporationStatoilEastern GOM OCS Air Permitting ProjectStatoil - Maersk DeveloperPainting Activities Emissions CalculationsParametersPaint Used (gal/day)2.12Percent of each Paint Coating 50%Paint Transfer Efficiency for spraying 65%Percent Paint Spray as PM10 70%Percent Paint Spray as PM2.5 25%Thinner Used (gal/day) 1.74Hours of Operation (days/yr) 180Name Manufacturer % SolidsDensity(lb/gal)Solids VOCEthylbenzenebis(2-ethylhexyl)phthalateXylene Toluene2-Propoxy-ethanolSigmacover 630 Base PPG Industries 84.4% 12.6 10.6 2.0 0.4 0.4 0.95 -- --Amercoat 335 - Resin35% 8.51 3.0 -- -- -- 0.26 -- 0.6Amercoat 335 - Cure84% 9.26 7.8 -- -- -- -- -- 1.9Amercoat 335 (8 parts resin: 1 part cure) 43% 8.59 3.71.8 -- -- --2.0 0.4 0.4 0.9 -- 1.9Thinner 90-53 PPG Industries 0% 7.43 -- 7.4 0.6 -- 3.3 0.04 --Thinner 91-92 PPG Industries 0% 7.09 -- 7.1 0.7 -- 3.9 0.04 ----7.4 0.7 -- 3.9 0.04 --Emissions SummaryPaint Coating Paint Thinner(lbs/hr) (lbs/hr) (lb/hr) (tpy) (lb/yr)0.22--0.2 0.48 9570.16--0.2 0.33 6700.06--0.1 0.12 2390.17 0.5 0.7 1.54 3,0770.03 0.05 0.1 0.18 3660.03 -- 0.03 0.07 1440.08 0.3 0.4 0.79 1,582-- 0.003 0.003 0.01 130.16 -- 0.2 0.35 707Emission Factor ReferencesSample CalculationsGallons of paint (gal/day) x VOC Content (lb VOC/gal) / Hours per Day (24 hr/day) = Emissions (lb/hr)Gallons of paint (gal/day) x coating use (50% per coating) x Solids Content (lb solids/gal) x TransferEfficiency (1 - 0.65) / Hours per Day (24 hr/day)= Emissions (lb/hr)Emissions (lb/hr) x Hours per day (24 hrs/dy) x Hours of Operation (180 days/yr) / 2000 lbs/ton = Emissions (tpy)2. Assume half of each surface coating is used throughout the year. Estimate of 65 percent transfer efficiency were obtained from SouthCoast Air Quality Management District. Bench-scalestudies estimate that PM10 emissions from overspray are approximately 70% of total PMand PM2.5 emissions are approximately 25% of totalPM.Composition (lb/gal)PollutantVOC1. Emissions of VOC and HAP based on gallons of paint and thinner used and material safety data sheetsfor paints and paint thinners. Themaximum VOC and specific HAPs contents for each (paint and thinner) were determined across the available products.PPG IndustriesMax of Paint CoatingsMax of Paint ThinnersEthylbenzenebis(2-ethylhexyl) phthalateXyleneToluene2-Propoxy-ethanolTotal PaintingCalculated Emission Rates1PM2PM102PM2.52Painting ActivitiesENVIRON International Corporation

### EPA Form 5900-79 Developer OMB No. 2060-0336, Approval Expires 06/30/2015 

### Federal Operating Permit Program (40 CFR Part 71)

GENERAL INFORMATION AND SUMMARY (GIS)

A. Mailing Address and Contact Information

Facility name Maersk Developer, StatOil Gulf Ser vices, LLC

Mailing address: Street or P.O. Box 2103 CityWe st Blvd., Suite 800

City Houston State Texas ZIP 77042

Contact person: Don Evans Title Environmen tal Advisor

Telephone (713) 485 – 2203 Ext. N/A

Facsimile N/A email doev@statoil.com

B. Facility Location

Temporary source? ___Yes _X_No Plant site locat ion Eastern Gulf of Mexico located in the Desoto

Canyon

City N/A State N/A County N/A EPA Regi on__4__

Is the facility located within:

Indian lands? ___YES _X_ NO OCS wate rs? _X_YES ___ NO

Non-attainment area? ___ YES _X_NO If yes, for what air pollutants? _________

Within 50 miles of affected State? __ YES _X_ NO If yes, What State(s)? _____

C. Owner

Name Maersk Drilling USA, Inc. Street/P.O. Bo x 2500 CityWest Blvd., Suite 1850

City Houston State Texas ZIP 77042

Telephone (713) 346 - 4300 Ext. N/A

D. Operator

Name StatOil Gulf Services, LLC Street/P.O. Bo x 2103 CityWest Blvd., Suite 800

City Houston State Texas ZIP 77042

Telephone (713) 918 - 8200 Ext. N/A

### GIS 2



### EPA Form 5900-79 Developer E. Application Type

Mark only one permit application type and answer th e supplementary question appropriate for the type

marked.

_X_ Initial Permit ___ Renewal ___ Signif icant Mod ___ Minor Permit Mod(MPM)

___ Group Processing, MPM ___ Administ rative Amendment

For initial permits, when did operations commence? 07/01/2013 (anticipated date)

For permit renewal, what is the expiration date of current permit? _____/____/_____

F. Applicable Requirement Summary

Mark all types of applicable requirements that appl y.

___ SIP ___ FIP/TIP _X_PSD ___Non-attainment NSR

___ Minor source NSR _X_ Section 111 ___ Phase I acid rain ___Phase II acid rain

___ Stratospheric ozone _X_OCS regulations _X_ NESHAP ___ Sec. 112(d) MACT

___ Sec. 112(g) MACT ___ Early reduction of HAP ___ Sec 112(j) MACT ___ RMP [Sec.112(r)]

___ Tank Vessel requirements, sec. 183(f)) ___ Section 129 Standards/Requirement

___ Consumer / comm.. products, ' 183(e) _X_ NAAQS, increments or visibili ty (temp. sources)

Has a risk management plan been registered? ___YES _X_NO Regulatory agency ____________

Phase II acid rain application submitted? ___YES _X_NO If yes, Permitting authority ____________

G. Source-Wide PTE Restrictions and Generic Applic able Requirements

Cite and describe any emissions-limiting requiremen ts and/or facility-wide "generic" applicable requir ements.

40 CFR 82 Subpart F – Statoil will comply with all applicable provisions of this regulation as it rela tes to the servicing, maintenance, and reporting of appliances using Class I and II refrigerants installed on the
Developer rig.

### GIS 3



### EPA Form 5900-79 Developer H. Process Description

List processes, products, and SIC codes for the fac ility.

Process Products SIC

Exploration N/A 1382

I. Emission Unit Identification

Assign an emissions unit ID and describe each emiss ions unit at the facility. Control equipment and/o r alternative
operating scenarios associated with emissions units should by listed on a separate line. Applicants m ay exclude from this list any insignificant emissions units or activities.

Emissions Unit ID Description of Unit

GEN Wartsila Diesel Engine (GEN-1)

Wartsila Diesel Engine (GEN-2)

Wartsila Diesel Engine (GEN-3)

Wartsila Diesel Engine (GEN-4)

Wartsila Diesel Engine (GEN-5)

Wartsila Diesel Engine (GEN-6)

Wartsila Diesel Engine (GEN-7)

Wartsila Diesel Engine (GEN-8)

E GEN Emergency Diesel Generator Engine

OSV Offshore Support Vessels

CREW Crew Boats

CMU Cement Unit Engine (CMU-1)

Cement Unit Engine (CMU-2)

PAINT Fugitive Painting Emissions

IE – MUD Drilling Mud Degassing

IE – FUG Fugitive Component Emissions

IE – FO CMV ST Cement Unit Storage Tank

IE – FO ST Fuel Oil Storage Tank Port Side (#1)

Fuel Oil Storage Tank Starboard Side (#2)

Fuel Oil Storage Tank Port Side (#3)

Fuel Oil Storage Tank Starboard Side (#4)

IE – FO SER ST Fuel Oil Service Tank Port Side

Fuel Oil Service Tank Starboard Side

IE – FO SET ST Fuel Settling Tank Port Side

Fuel Settling Tank Starboard Side

IE – Insignificant Emissions sources (see IE Form)

### GIS 4

IE – FO E GEN ST Standby Generator Fuel Oil Tank

IE – FO LB ST Life Boat Storage Tank (#1)

Life Boat Storage Tank (#2)

Life Boat Storage Tank (#3)

Life Boat Storage Tank (#4)

IE - LB Life Boat #1

Life Boat #2

Life Boat #3

Life Boat #4

IE - MOB Fast Rescue (MOB)

IE – FO MOB ST Fast Rescue Boat Tank

IE – AV ST Aviation Fuel Tank (#1)

Aviation Fuel Tank (#2)

Aviation Fuel Tank (#3)

IE – WO ST Waste Oil Tank (P)

Waste Oil Tank (S)

IE – WELD Maintenance Welding

IE – Insignificant Emissions sources (see IE Form )

J. Facility Emissions Summary

Enter potential to emit (PTE) for the facility as a whole for each air pollutant listed below. Enter the name of the
single HAP emitted in the greatest amount and its P TE. For all pollutants stipulations to major sourc e status may be indicated by entering "major" in the space f or PTE. Indicate the total actual emissions for fe e purposes for the facility in the space provided. Applicatio ns for permit modifications need not include actual emissions

information.

NOx 484.26 tons/yr VOC 27.65 tons/yr SO2 0.37 tons/yr

PM-10 9.82 tons/yr CO 63.32 tons/yr Lead 0.01 tons/yr

Total HAP 1.8 tons/yr

Single HAP emitted in the greatest amount Xylene s PTE 0.9 tons/yr

Total of regulated pollutants (for fee calculation) , Sec. F, line 5 of form FEE * tons/yr

* Please see the Fee calculations for the Discovere r Americas drill rig for worst-case emissions.

K. Existing Federally-Enforceable Permits

Permit number(s) N/A Permit type N/A Permitt ing authority N/A

Permit number(s) N/A Permit type N/A Permitt ing authority N/A

### GIS 5



### EPA Form 5900-79 Developer L. Emission Unit(s) Covered by General Permits

Emission unit(s) subject to general permit N/A

Check one: ___ Application made ___ Coverage granted

General permit identifier ________________________ ______ Expiration Date ____/____/____

M. Cross-referenced Information

Does this application cross-reference information? ___ YES _X_ NO (If yes, see instru ctions)

### EPA Form 5900-81 Developer OMB No. 2060-0336, Approval Expires 06/30/2015 

### Federal Operating Permit Program (40 CFR Part 71)

EMISSIONS UNIT DESCRIPTION FOR VOC EMITTING SOURCES (EUD-2 

## )

A. General Information



### Emissions unit ID _PAINT_____ Description _Fug itive Emissions from Painting Activities_

SIC Code (4-digit) __1382__ SCC Code _______

_

B. Emissions Unit Description



### Equipment type Painting with Brush, Roller, and Spr ayer Temporary source: ___Yes _X No

Manufacturer_Not Applicable________ Model No. _ N ot Applicable__

Serial No. __ Not Applicable__________ Installati on date_N/A_/____/________

Articles being coated or degreased _Vessel Maintena nce Activities_____________

Application method _Brush, Roller, Sprayer________

______________________________

Overspray (surface coating) (%) _35_____ Drying method__N/A__________________

No. of dryers __ N/A___ Tank capacity (degreas ers) (gal) __ N/A________

C. Associated Air Pollution Control Equipment – Not Applicable

Emissions unit ID ___________ Device Type________

____________________________

Manufacturer ________________________ Model No___

_________________________

Serial No. ______________________________ Insta llation date ____/____/_________

Control efficiency (%) _________.___ Capture efficiency (%) ________.___

Air pollutant(s) controlled______________ Efficie ncy estimation method _______________

D. Ambient Impact Assessment

– Not Applicable

This information must be completed by temporary sou rces or when ambient impact assessment is an

applicable requirement for this emissions unit (thi s is not common 

### ).

Stack height (ft) __________._____ Inside stack diameter (ft) _________._____

Stack temp (F) __________._____ Design stack flow rate (ACFM) __________.____

Actual stack flow rate (ACFM) _______________ V elocity (ft/sec) ____________._______

### EPA Form 5900-81 Developer 2 EUD-2

E. VOC-containing Substance Data

List each VOC-containing substance consumed, proces sed or produced at the emissions unit that is emitted into the air. In the name column, if provi ding a brand name, include the name of the manufact ure; if the substance contains HAP, list the constituent HAP.

Substance

Name

(Chemical,
Brand Name) CAS No. Substance
Type Actual

Usage
(gal/yr) Max

Usage

(gal/day) Max

Usage

(gal/year) VOC

Content
(lb/gal)

Sigmacover 630

Base N/A Surface

Coating

382 2.12

(estimate) 382

(estimate) 2.0

Amercoat 335 N/A Surface

Coating 1.8

Thinner 90-53 N/A Paint

Thinner

313 1.7

(estimate) 313

(estimate) 7.4

Thinner 91-92 N/A Paint

Thinner 7.1

### EPA Form 5900-83 Developer OMB No. 2060-0336, Approval Expires 06/30/2015 

### Federal Operating Permit Program (40 CFR Part 71)

INSIGNIFICANT EMISSIONS (IE)

On this page list each insignificant activity or em ission unit. In the "number" column, indicate the number of units in this category. Descriptions should be brief but unique. Indicate which emissions criteri on of part 71 is the basis for the exemption.

Number Description of Activities or Emissions Units RAP, except

HAP HAP

1 MUD – Fugitive Emissions from Mud Degassing 

### X X

1 FUG – Fugitive Emissions from Components 

### X X

4 FO ST – Fuel Oil Storage Tank 

### X X

2 FO SER ST – Fuel Oil Service Tank 

### X X

2 FO SET ST – Fuel Setting Tank 

### X X

1 FO E GEN ST – Standby Generator Fuel Oil Tank 

### X X

1 FO CMV ST – Cement Unit Storage Tank 

### X X

4 LB – Life Boat 

### X X

4 FO LB ST – Life Boat Storage Tank 

### X X

1 MOB – Fast Rescue (MOB) 

### X X

1 FO MOB ST – Fast Rescue Boat Tank 

### X X

3 AV – Aviation Fuel Tank 

### X X

2 WO – Waste Oil Tank 

### X X

1 WELD – Welding Activities 

### X X

### EPA Form 5900-84 OMB No. 2060-0336, Approval Expires 06/30/2015



### Federal Operating Permit Program (40 CFR Part 71)

EMISSION CALCULATIONS (EMISS)

Calculate potential to emit (PTE) for applicability purposes and actual emissions for fee purposes for

each emissions unit, control device, or alternative operating scenario identified in section I of form

GIS . If form FEE does not need to be submitted with the application , do not calculate actual

emissions.

A. Emissions Unit ID PAINT

B. Identification and Quantification of Emissions

First, list each air pollutant that is either regul ated at the unit or present in major amounts, then list any other regulated pollutant (for fee calculation) not already listed. HAP may be simply listed as "HAP. " Next, calculate PTE for applicability purposes and actual emissions for fee purposes for each pollutant. Do not calculate PTE for air pollutants listed solely for fee purposes. Include all fugitives for fee purpos es

. 

### You may round to the nearest tenth of a ton for yearly values or tenth of a pound for hourly values.

Air Pollutants Emission Rates

CAS No. Actual

Annual

Emissions
(tons/yr) Potential to Emit

Hourly
(lb/hr) Annual

(tons/yr)

Particulate Matter N/A 0.22 0.48

PM 10 N/A 0.16 0.33

PM 2.5 N/A 0.06 0.12

Volatile Organic Compounds (VOC) N/A 0.7 1.5

Ethylbenzene N/A 0.1 0.18 100-41-4

Bis(2-ethylhexyl) phthalate N/A 0.03 0.07 117-81-7

Xylene N/A 0.4 0.79 1330-20-7

Toluene N/A 0.003 0.01 108-88-3

2-Propoxy-ethanol N/A 0.2 0.35 2807-30-9