Alaska Department of Environmental Alaska Department of Environmental ConservationConservationSpill Prevention and Response DivisionSpill Prevention and Response DivisionIndustry Preparedness ProgramIndustry Preparedness Program

Flow Line RegulationsFlow Line Regulations18 AAC 75.04718 AAC 75.047

What is a flow line?What is a flow line?18 AAC 75.990(173) "flow line"(A) means piping and associated fittings, including all valves, elbows, joints, flanges, pumps, and flexible connectors,

(i) containing liquid oil;(ii) located at a production facility; and(iii) that is installed or used for the purpose of transporting oil between a well pad or marine structure used for oil production and the interconnection point with a transmission pipeline; and

(B) includes all piping between interconnections, including multi-phase lines and process piping, except

(i) facility oil piping; and(ii) transmission pipelines;

What isn’t a flow line?What isn’t a flow line?Crude Oil Transmission Crude Oil Transmission

PipelinePipeline Flow LineFlow Line Facility Oil PipingFacility Oil Piping

Typical size Typical size (diameter)(diameter)

6 – 48 inches 4 – 30 inches <8 inches

Pipe ContentsPipe Contents Crude Oil Multi-phase Oil Oil

ADEC RegulationADEC Regulation 18 AAC 75.055 18 AAC 75.047 18 AAC 75.080

Leak DetectionLeak Detection Yes (1% daily volume) No No

Design StandardDesign Standard NoYes

ASME B31.4, B31.8Yes

ASME B31.3, B31.4, B31.8

Cathodic Protection Cathodic Protection StandardStandard

No YesYes

NACE RP0169, API 570

Corrosion Control Corrosion Control StandardStandard

NoYes

ASMEB31.4, NACE RP0169

Yes

Protective coating & CP

Inspection StandardInspection Standard No YesYes

API 570

Maintenance Maintenance StandardStandard

NoYes

ASME B31.4, API 570

Yes

API 570

Fac ility B oundary

Fac ility B oundary

G ravel P ad

W ell P ad B oundary

M arineS truc ture

Refinery

M anifo ld B uild ing

18 AAC 75 A rtic le 1 R egulatory Boundary Exam ples

Conta inment

O ilS torage

Tank

Conta inment

W ellheads

Conta inment

M arine Header

O ilS torage

Tank

Fac ility B oundary

Pum p S tation

Conta inment

O ilS torage

Tank

Fac ility B oundary

CentralProcessing

Facility

Conta inment

O ilS torage

Tank

Conta inment

Loading Rack

M arine Header

Not regulated by ADEC under 18 AAC 75 Article 1

Regulated Facility Piping (18 AAC 75.080)

Regulated Flow line (18 AAC 75.047)

Regulated Crude Oil Transmission Pipeline (18 AAC 75.055)

Regulated Aboveground Oil Storage Tank (18 AAC 75.065 / .066)

Regulated M arine Structure Used for Oil Production (18 AAC 75.045)

Regulated Secondary Containment (18 AAC 75.075)

Regulated Transfer Operation (18 AAC 75.025)

Regulated Vessel Operation (18 AAC 75.027 / .037)

Regulated Railroad Tank Car (18 AAC 75.085)

Crude O il T ransmission P ipe line

Submerged F low L ine

M ulti-phase F low L ine

F low L ine

Conta inment

Loading Rack

Loading Rack

Tank Vesse l / Tank Barge

Tank Vesse l / Tank Barge

R efer to the appropria te regula tions for spec ific boundaries

How are flow lines regulated?How are flow lines regulated?

Design & construction standardsDesign & construction standardsCorrosion monitoring & controlCorrosion monitoring & controlPreventative maintenancePreventative maintenanceLine markersLine markersRemoval from service requirementsRemoval from service requirementsLine supportsLine supportsCompliance documentation & Compliance documentation & recordkeepingrecordkeeping

Design & construction standardsDesign & construction standards

ASME B31 series industry standards for design ASME B31 series industry standards for design and construction of pipe:and construction of pipe:– ASME B31.4, ASME B31.4, Pipeline Transportation Systems for Pipeline Transportation Systems for

Liquid Hydrocarbons and Other LiquidsLiquid Hydrocarbons and Other Liquids– ASME B31.8, ASME B31.8, Gas Transmission and Distribution Gas Transmission and Distribution

Piping SystemsPiping Systems– Other “equivalent and nationally recognized standard”Other “equivalent and nationally recognized standard”

Design & construction standards become Design & construction standards become effective 31 December 2008 (2 year phase-in)effective 31 December 2008 (2 year phase-in)

Corrosion monitoring & controlCorrosion monitoring & control

Industry standardsIndustry standards– ASME B31.4, Chapter VIIIASME B31.4, Chapter VIII– NACE RP0169-2002 for external corrosion control on NACE RP0169-2002 for external corrosion control on

submerged or buried linessubmerged or buried lines

External corrosion controlExternal corrosion control– Protective coatings on aboveground lines or Protective coatings on aboveground lines or

corrosion-resistant materialcorrosion-resistant material

Internal corrosion control programInternal corrosion control program– Pigging, inhibitors, biocides, coatings, linings, etc.Pigging, inhibitors, biocides, coatings, linings, etc.

Corrosion monitoring & control requirements Corrosion monitoring & control requirements become effective 31 December 2007 (1 year become effective 31 December 2007 (1 year phase-in)phase-in)

Preventative maintenancePreventative maintenance

Choice – either:Choice – either:– Use a bundled pipe with an interstitial leak Use a bundled pipe with an interstitial leak

detection system, ordetection system, or– Have a preventative maintenance system in Have a preventative maintenance system in

placeplace

Preventative maintenance systemPreventative maintenance system– Consistent with ASME or API standardsConsistent with ASME or API standards

Effective 31 December 2007 (1 year Effective 31 December 2007 (1 year phase-in)phase-in)

Preventative maintenance program Preventative maintenance program standardsstandards

Submerged linesSubmerged lines– ASME B31.4, Chapters VII through IXASME B31.4, Chapters VII through IX

Buried linesBuried lines– ASME B31.4, Chapters VII & VIIIASME B31.4, Chapters VII & VIII

Aboveground linesAboveground lines– API 570 (except Section 8) andAPI 570 (except Section 8) and– ASME B31.4, Chapters VII & VIIIASME B31.4, Chapters VII & VIII

All preventative maintenance programs must All preventative maintenance programs must have procedures for management of change have procedures for management of change

Line markers, removal from Line markers, removal from service, and pipe supportsservice, and pipe supports

Line MarkersLine Markers– One mile intervals and at each road crossingOne mile intervals and at each road crossing– Effective 31 December 2007 (1 year phase-in)Effective 31 December 2007 (1 year phase-in)

Removal from serviceRemoval from service– Pig, drain, or blow pipe to remove oilPig, drain, or blow pipe to remove oil– Effective 31 December 2006 (now)Effective 31 December 2006 (now)

Pipe supportsPipe supports– ASME B31.4, Paragraph 421ASME B31.4, Paragraph 421– Effective 31 December 2006 (now)Effective 31 December 2006 (now)

Documentation / RecordkeepingDocumentation / Recordkeeping

Documentation of measures taken to Documentation of measures taken to comply with 18 AAC 75.047comply with 18 AAC 75.047– Corrosion controlCorrosion control– Preventative maintenancePreventative maintenance

Maintain records for minimum of five yearsMaintain records for minimum of five years

Records must be available to ADEC upon Records must be available to ADEC upon requestrequest

Other changes to 18 AAC 75, Article 1 Other changes to 18 AAC 75, Article 1 that affect North Slope operationsthat affect North Slope operations

Increased prevention training and Increased prevention training and documentation requirementsdocumentation requirementsRevised regulations for aboveground oil Revised regulations for aboveground oil storage tanks storage tanks

– field-constructed oil storage tanksfield-constructed oil storage tanks– shop-fabricated oil storage tanksshop-fabricated oil storage tanks

Revised regulations for facility pipingRevised regulations for facility piping

Prevention trainingPrevention training

Moved into its own section and expandedMoved into its own section and expanded

Personnel that inspect, maintain, operate Personnel that inspect, maintain, operate oil storage and transfer equipment must oil storage and transfer equipment must be trained regarding company and state be trained regarding company and state spill prevention measuresspill prevention measures

Job descriptions and training level neededJob descriptions and training level needed

Keep training records for 5 yearsKeep training records for 5 years

Aboveground storage tanksAboveground storage tanks

Two types definedTwo types defined– Field-constructed storage tankField-constructed storage tank

Constructed to API 650, API 12B, Constructed to API 650, API 12B, 12C, 12D, 12E, 12F, or 12P12C, 12D, 12E, 12F, or 12P

Inspected to API 653 or API 12R1Inspected to API 653 or API 12R1

– Shop-fabricated storage tankShop-fabricated storage tankConstructed to UL 142 or similar Constructed to UL 142 or similar standard standard

Inspected to API 653 or STI SP001Inspected to API 653 or STI SP001

Facility oil pipingFacility oil piping

New definition: Piping and associated fittings originating New definition: Piping and associated fittings originating from or terminating at a regulated oil storage tank or an from or terminating at a regulated oil storage tank or an exploration or production wellexploration or production wellThree classes of facility oil piping, based on installation Three classes of facility oil piping, based on installation date:date:– Before May 14, 1992 – no construction standard appliesBefore May 14, 1992 – no construction standard applies– May 14, 1992 thru 2008 – protective coating and cathodic May 14, 1992 thru 2008 – protective coating and cathodic

protection, all weldedprotection, all welded– 2009 or later – ASME B31.3, B31.4, or B31.8, or equivalent 2009 or later – ASME B31.3, B31.4, or B31.8, or equivalent

standard; cathodic protection per NACE standardstandard; cathodic protection per NACE standard

Inspection consistent with API 570 inspection standard Inspection consistent with API 570 inspection standard by 2008by 2008

Effective DatesEffective Dates

Regulations covering design and Regulations covering design and construction – go into effect in 2009construction – go into effect in 2009

Regulations covering operations and Regulations covering operations and maintenance – go into effect in 2008maintenance – go into effect in 2008

Remaining regulations - December 30, Remaining regulations - December 30, 20062006

Questions?Questions?

Craig WilsonCraig WilsonIndustry Preparedness ProgramIndustry Preparedness ProgramSpill Prevention and Response DivisionSpill Prevention and Response DivisionAlaska Department of Environmental ConservationAlaska Department of Environmental Conservation

www.dec.state.ak.us/spar/ippwww.dec.state.ak.us/spar/ipp