Long-distance pipeline construction delivery

Lifecycle status: Candidate
Content maturity: Authored methodology
Current version: 0.1.0Last updated2026-10-10
Readiness: Review required

Methodology and translation states come from the source record; publishing this website does not change their review status.

Content languages

zh-CN · Aligned

Status, classification and source details

Readiness

Warnings methodology_not_reviewed Authored methodology is candidate guidance and still requires methodology review.

Classification mapping

CPC 3.0:53241 · exact

Source

library/pcrs/constructions-and-construction-services/constructions/long-distance-pipeline-deliverysha256:eb6d19a05cd2…

1. Scope and Applicability

This PCR governs construction and acceptance delivery of the geographically defined physical long-distance pipeline entity conveying petroleum products, gas, water or other products, including overland, underground and submarine routes and pumping stations or similar related structures. Urban gas/water distribution mains are outside scope (un-cpc3-2025, printed/PDF p. 280). A classification coordinate is scope evidence, not a reason to create identity. This is installed civil work, not a bag of building materials, pipe manufacture, construction service or transport operation.

Use the complete owner-defined delivery system, or an independently accepted related station whose interfaces and relationship to the trunk line are explicit. A separately contracted reach qualifies only with independently testable, actually accepted interfaces and all its integral works; never cut a full project down to an easy pipe material or omit its stations/crossings. The representative steel route does not remove water, other pipe materials, trenchless or submarine applicability. Actual routes needing further consumables, coatings, fittings, support steel, marine anchorage, wet excavation or station auxiliaries require additional atomic exchanges and project evidence before completeness.

The foreground starts at documented preconstruction site/retained-asset conditions and actual supplied material interfaces and ends at completed installation, corrections, accepted testing, restoration included in handover and physical delivery. Supplier manufacture and its transports are separate linked upstream modules; routine operation, conveyed product, pumping/compression energy after handover, maintenance, replacement and final demolition are separate stages. This construction cycle sets no default lifetime, pipe mass per kilometre, capacity, fuel rate, loss fraction, recipe or approval. FERC 2013/2017 documents inform explicitly dated gas-project construction/data practices, not globally current regulatory compliance; PHMSA testing guidance is for gas/hazardous liquids, while water and other products require their actual acceptance specification.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.constructions-and-construction-services.constructions.long-distance-pipeline-delivery
classification_refs	CPC 3.0 53241; scope context only, no accepted mapping created
covered_products	Complete accepted long-distance overland, underground or submarine pipeline systems for petroleum, gas, water or other products; identified related pumping/compressor/valve structures
excluded_products	Urban/local distribution mains; separately delivered water-treatment plants, nonpipeline aqueducts and navigation works; manufactured pipe/components; construction services; operational transport service
representative_product	One configured complete accepted pipeline delivery unit with surveyed line and declared integral station/crossing interfaces
production_route	Actual logistics and site preparation, supplied-pipe jointing/protection, open-cut/trenchless/submarine installation, applicable station civil and equipment installation, pressure/conditioning tests, reinstatement and handover
market_state	Installed, inspected and actually accepted physical construction at the declared site; no routine transported-product output

3. Reference Flow

Field	Value
What	Deliver the complete installed pipeline passage and declared related structures between the actual interfaces, capable of the declared conveyance duty under recorded acceptance conditions
How much	One complete accepted delivery unit. For a line-bearing unit survey actual installed centreline length, each bore/wall/section, burial/support/seabed geometry and crossings. For every included station survey its layout, foundations and equipment configuration. A genuinely independent station-only delivery declares its trunk-line interfaces and actual station geometry/duty; nonincluded line or station attributes are explicitly not_applicable with scope evidence, never fabricated. Declare actual hydraulic flow and pressure conditions. These qualify the same entity, not alternative denominators.
How well	Actual material grades, lining/coating/joint system, design and operating-fluid constraints, test medium, pressure/temperature, hold/leak criteria and test/inspection records for the declared jurisdiction/specification; no generic compliance conclusion
How long or cycle	One recorded construction-to-acceptance cycle, including actual rework and retest; later service duration is outside this reference and must be evidenced for any lifecycle extension
reference_flow_link	`finished_pipeline`

Field	Value
Reference amount	1
Reference product flow	Accepted complete long-distance pipeline delivery unit
Reference flow property	Number of items `01846770-4cfe-4a25-8ad9-919d8d378345`
Reference unit group	Units of items `5beb6eed-33a9-47b8-9ede-1dfe8f679159`
Reference unit	item
Required qualifiers	asset/site id and country; conveyed product; start/end interfaces and related station scope; entity type and applicability of each qualifier; applicable as-built length/bore/wall/geometric survey; pipe material/grade/lining/coating/joint state; overland/underground/submarine and crossing methods; actual capacity and pressure/temperature conditions; supports/burial/protection; installed equipment and station configuration; preconstruction/retained state; supplier interfaces; test/inspection/repair/restoration records and acceptance date; boundary and completeness exclusions

item is the display alias of public Item(s), counting this one complete configured civil delivery unit. It does not make different lengths, capacities or configurations equivalent. Do not substitute cost, transported tonnes or manufactured pipe mass for this reference.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_count	reference product	Number of items	item	Output is 1 item of the same complete accepted construction, verified using cp_delivery. All inventory and collection aggregates are per declared reference flow; no invented per-project/per-kilometre mass.
measured_physical_basis	all inventory rows	Mass; Volume; Length; Net calorific value; Number of items	kg; m3; m; MJ; item	Preserve each direct-read reference property and unit group. Weigh same-lot net masses; meter volume at recorded temperature/pressure; survey cable/pipe lengths and geometry. Volume-to-mass or length-to-mass needs independently measured density or linear mass for that exact state; never change a public property to Mass or use a default density. Use Number of items/item for one complete accepted pipeline entity under reference_count and cp_delivery. The listed property/unit pairs apply to their respective exchanges; auxiliary quantities do not replace the reference output count.
electricity_units	cn_lv_power; cn_mv_power	Net calorific value	MJ	Public electricity retains Net calorific value and Units of energy. Convert metered kWh using the defined identity 1 kWh = 3.6 MJ; record which user-voltage interface is present.
asset_share_basis	timber_mat; crawler_excavator; pipelay_vessel	Mass	kg	Collect actual same-configuration net asset mass and an independently supported dimensionless manufacture share in cp_assets. Lifetime or cumulative activity unknown requires explicit review; no full manufacture burden is reset per project.

Property	UUID	Unit group	Reference unit
Mass	93a60a56-a3c8-11da-a746-0800200b9a66	93a60a57-a4c8-11da-a746-0800200c9a66	kg
Volume	93a60a56-a3c8-22da-a746-0800200c9a66	93a60a57-a3c8-12da-a746-0800200c9a66	m3
Net calorific value	93a60a56-a3c8-11da-a746-0800200c9a66	93a60a57-a3c8-11da-a746-0800200c9a66	MJ
Length	838aaa23-0117-11db-92e3-0800200c9a66	838aaa22-0117-11db-92e3-0800200c9a66	m

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Documented site, existing retained line/station/interfaces and actual supplier-gate delivered material/assembly state before construction
starting_condition_role	foreground_start
product_classification_scope	Complete long-distance pipeline physical delivery and identified related structures, excluding local distribution
recursive_input_rule	Retained line/station is starting stock, not new reference output. A purchased same-category accepted work is linked once at its own delivery boundary, never recursively regenerated as onsite pipe manufacture.
upstream_dataset_requirement	Verify supplier product/state, route/geography/period, primary property, transport interface and module coverage. Link separate material, equipment, utility and actual waste-management datasets; no automatic complete upstream coverage.
disclosure	Construction foreground through actual acceptance; report every linked upstream module and omission independently. Do not claim complete cradle-to-gate or whole-life coverage from a construction account.

rule_id	Rule	source_ids
b_complete_delivery	Include actual mobilisation, route/working-area preparation, topsoil segregation, trench or support works, pipe receipt/stringing/bending, jointing and NDT, applicable coating repair, lowering/laying/anchorage, backfill, station civil/equipment installation, testing/retest, tie-in, required handover restoration and cleanup. Shared utility/emission records are task tagged and counted once.	ferc-construction-2017; ferc-upland-2013; saipem-subsea
b_routes	Derive open-cut/HDD/tunnel/overland-supported/submarine and station requirements from actual design/as-built records. Include actual water control, drilling-fluid management, lay/support vessels, trench/protection works and shore approach. Missing route materials or processes must be added as atomic rows before a complete project dataset; conditional cards cannot delete actual scope.	ferc-wetland-2013; saipem-subsea; un-cpc3-2025
b_supplied_state	Separate supplied-pipe/coating/assembly manufacture from field joining, protection, transport and installation. Supplier factory testing is upstream; actual construction tests are foreground. Record actual onsite fabrication/batching as distinct inputs/processes; never duplicate embedded steel/concrete/water or coating ingredients.	ferc-construction-2017; nwpipe-steel-water-2019; phmsa-hydrotest
b_consumed_inputs	For every supplied material or assembly input, construction/installation applicability identifies the intended work, not only successfully installed quantities. In each native unit use attributable gross receipts + opening stock - verified returns/transfers - closing reusable stock; include pre-acceptance spillage, damage, rejected-but-consumed items and replacements. Verified returns and reusable carryover are excluded from consumed input, while any attributable handling, transport or rework remains. Reconcile installed acceptance and waste separately; do not cancel consumed manufacture. Reusable temporary assets retain their conserved manufacturing share under the asset-allocation rules.
b_stages	Include removal of existing obstructions and temporary works actually needed for construction, without pretending it is future final demolition. Exclude posthandover transport operation, routine pumping/compression, maintenance/renewal and final demolition; extend separately with actual activity/duration/fate evidence.	ferc-construction-2017; phmsa-hydrotest
b_environment	Direct water-resource inputs, purchased technosphere water, wastewater to treatment and elemental discharge are different interfaces. Record emissions only for actual substance/media and evidenced occurrence. Noise, vibration, land/ecology, waterbody disturbance and drainage are surveyed impact context; lack of an applicable quantified flow is an explicit coverage gap, not zero impact.	ferc-construction-2017; ferc-wetland-2013; ferc-upland-2013

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
logistics	Construction logistics	required	All actual materials/equipment/waste movements not already covered by verified suppliers	foreground_process	per declared reference flow
earthworks	Route preparation, excavation and bedding	conditional	Actual overland/underground preparation, open cut, supports or site removal	foreground_process	per declared reference flow
pipe_installation	Pipe receipt, jointing, protection and installation	conditional	Declared delivery includes a pipeline reach; execute actual welding/fusion/gasket route	foreground_process	per declared reference flow
crossings	Trenchless and waterbody crossings	conditional	Actual HDD, boring, tunnelling or water crossing with its recorded method	foreground_process	per declared reference flow
offshore	Submarine pipelay and protection	conditional	Actual submarine route; record S/J/reel-lay, support vessels, burial/protection and shore approach	foreground_process	per declared reference flow
station	Related pumping/compressor/valve station construction	conditional	Integral declared station or independently accepted related station; actual civil/equipment/control scope	foreground_process	per declared reference flow
commissioning	Pressure tests, conditioning and tie-in	required	All actual acceptance tests, cleaning, repair/retest and tie-in; individual water/gas media conditional	foreground_process	per declared reference flow
restoration	Backfill, reinstatement and cleanup	conditional	Actual construction disturbance, temporary works removal and required handover restoration	foreground_process	per declared reference flow
assets	Reusable construction asset manufacture attribution	conditional	Actual included reusable assets with conserved and supported manufacture shares	foreground_process	per declared reference flow
site_support	Task-specific equipment operation, water and site emissions	required	All included tasks; each exchange requires actual occurrence and applicable identity	foreground_process	per declared reference flow
handover	Final inspection and complete delivery	required	All declared physical works and acceptance interfaces	reference_process	per declared reference flow

Each material applies only to its actual route. Equipment/task ledgers cover excavation, lifting, bending, welding, pumping, testing, drilling, vessel positioning and station construction. site_support attributes utilities/emissions by task once; assets contains supported manufacture shares separately from operation. Add exact rows for other actual additives, fuels, coatings and wastes before project completeness.

Process: Construction logistics (`logistics`)

All actual materials/equipment/waste movements not already covered by verified suppliers.

Inputs

Product flows

Diesel fuel (`transport_diesel`)

Only actual diesel burned in separately recorded road haulage and mobilisation. Generic fuel identity has unspecified grade, density, heating value, refinery and provider; document the actual supplier and composition. Include actual distance, payload, empty return and fuel use; do not also add a transport service containing that fuel.

Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_logistics
Sources: ferc-construction-2017

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Route preparation, excavation and bedding (`earthworks`)

Actual overland/underground preparation, open cut, supports or site removal.

Inputs

Product flows

Graded natural sand for pipeline bedding (`bedding_sand`)

Only actual imported natural sand bedding; record grading, moisture, contamination status and supplier boundary. Internal reused excavated sand is a tracked internal transfer, not a new purchased sand input.

Selected flow: Graded natural sand for pipeline bedding
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Uncontaminated excavated mineral subsoil sent off site (`mineral_spoil`)

Only segregated mineral subsoil crossing to documented offsite management after subtracting same-site reuse. Exclude topsoil, vegetation, concrete and contaminated soil; create separate atomic rows for them when present. Waste treatment is separately linked to its measured destination.

Selected flow: Uncontaminated excavated mineral subsoil sent off site
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_waste
Sources: ferc-upland-2013

Elementary flows

Process: Pipe receipt, jointing, protection and installation (`pipe_installation`)

Declared delivery includes a pipeline reach; execute actual welding/fusion/gasket route.

Inputs

Product flows

Line pipe of a kind used for oil or gas pipelines, welded, of steel (`oilgas_welded_pipe`)

Only actual manufactured welded steel line pipe for petroleum or gas matching the public factory-gate identity; record grade, diameter, wall, lengths and supplied coating/lining. This UUID does not establish water pipe, seamless pipe or installed pipeline. Pipe-mill manufacture and factory hydrotest remain upstream.

Selected flow: Line pipe of a kind used for oil or gas pipelines, welded, of steel e505f1de-c307-4319-a6b6-371b34e7b1ed
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Manufactured welded steel water-transmission pipe (`water_steel_pipe`)

Only an actual water-transmission steel pipe, with actual factory-applied lining/coating and joint preparation recorded. The oil/gas-only identity cannot replace it.

Selected flow: Manufactured welded steel water-transmission pipe
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: nwpipe-steel-water-2019

Manufactured seamless steel transmission pipe (`seamless_pipe`)

Only actual seamless transmission pipe; retain hot/cold route, grade, dimensions and delivered protection.

Selected flow: Manufactured seamless steel transmission pipe
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Manufactured polyethylene pressure pipe (`pe_pressure_pipe`)

Only actual PE pressure pipe with resin designation, pressure rating, SDR/dimensions, potable-water suitability where applicable and fusion method from the project. No default PE grade is implied.

Selected flow: Manufactured polyethylene pressure pipe
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: un-cpc3-2025

Manufactured ductile-iron pressure pipe (`ductile_pressure_pipe`)

Only actual ductile-iron pressure pipe, with joint, lining, coating and pressure class recorded; not grey-iron casting feedstock.

Selected flow: Manufactured ductile-iron pressure pipe
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: un-cpc3-2025

Prestressed concrete cylinder pressure pipe (`pccp`)

Only actual supplied complete PCCP of documented dimensions, cylinder, prestress and lining condition. Do not also count its embedded cement, wire and steel cylinder as purchased site inputs.

Selected flow: Prestressed concrete cylinder pressure pipe
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: un-cpc3-2025

Flux Cored Wire (`flux_wire`)

Only actual all-position single-pass self-shielded carbon-steel flux-cored wire consistent with the public record and approved project welding procedure. Other electrode/wire/flux/shielding-gas routes require distinct rows, not this UUID. Record consumed wire and rejected/repaired welds.

Selected flow: Flux Cored Wire 1b74a576-06e0-4764-97ce-11a73f8a4752
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Solid carbon-steel welding wire (`solid_weld_wire`)

Only actual solid carbon-steel field-joint welding wire, with composition and welding procedure. Public Solid Wire refers to building electrical conductor and cannot be used.

Selected flow: Solid carbon-steel welding wire
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Formulated fusion-bonded epoxy coating powder (`fbe_powder`)

Only actual field-applied FBE powder of recorded formulation/solids and lot; raw DGEBA resin is not the supplied formulated powder. Exclude factory coating already included in the pipe input. Capture coating inspection and repair quantities.

Selected flow: Formulated fusion-bonded epoxy coating powder
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Manufactured polyethylene heat-shrink pipeline joint sleeve (`heatshrink_sleeve`)

Only an actual manufactured PE heat-shrink sleeve with its integral adhesive declared; not PE film, bag or resin. Extra separately supplied primer is a separate material row if used.

Selected flow: Manufactured polyethylene heat-shrink pipeline joint sleeve
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: nwpipe-steel-water-2019

Manufactured EPDM pipe-joint gasket (`epdm_gasket`)

Only actual EPDM gasket in a gasketed pipe joint; record elastomer formulation and size. Other elastomers and flanged steel joints are separate routes.

Selected flow: Manufactured EPDM pipe-joint gasket
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: nwpipe-steel-water-2019

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Uncoated steel pipe-cutting offcut (`pipe_steel_offcut`)

Only segregated bare steel offcuts from field cutting; coated pipe waste needs a separate state-specific row. Record weighed destination with no assumed recycling credit.

Selected flow: Uncoated steel pipe-cutting offcut
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_waste
Sources: ferc-construction-2017

Elementary flows

Process: Trenchless and waterbody crossings (`crossings`)

Actual HDD, boring, tunnelling or water crossing with its recorded method.

Inputs

Product flows

Dry sodium-bentonite drilling powder (`dry_bentonite`)

Only actual dry sodium-bentonite supplied for trenchless construction. Mix-water and each actual separate additive are separately recorded; packaged formulated drilling fluid is an alternative with composition/interface, not additional embedded powder.

Selected flow: Dry sodium-bentonite drilling powder
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-wetland-2013

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Separated mineral drilling cuttings (`drill_cuttings`)

Only actual separated mineral drilling cuttings from HDD/boring; record geology, retained fluid/moisture and contamination tests. Other spoil and spent fluid are distinct.

Selected flow: Separated mineral drilling cuttings
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_waste
Sources: ferc-wetland-2013

Spent aqueous bentonite drilling slurry (`spent_bentonite_slurry`)

Only spent bentonite slurry actually sent for treatment, with solids fraction and additives recorded. Internal recycling is tracked separately; inadvertent return to the environment requires substance- and receiving-medium-specific elementary rows and incident records.

Selected flow: Spent aqueous bentonite drilling slurry
Flow property / unit: Volume / m3
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_waste
Sources: ferc-wetland-2013

Elementary flows

Process: Submarine pipelay and protection (`offshore`)

Actual submarine route; record S/J/reel-lay, support vessels, burial/protection and shore approach.

Inputs

Product flows

Marine gas oil supplied to pipelay vessel (`marine_gasoil`)

Only actual marine gas oil for the pipelay/construction vessel, allocated from bunker and engine/task logs. Fishing-vessel burned-diesel records are incompatible. Other actual vessel fuels need separate exact rows.

Selected flow: Marine gas oil supplied to pipelay vessel
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_energy
Sources: saipem-subsea

Precast concrete pipeline ballast block (`ballast_concrete`)

Only actual supplied complete concrete ballast blocks; factory concrete-weight coating included in supplied pipe is not counted here. Record block geometry, mass and placement.

Selected flow: Precast concrete pipeline ballast block
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: saipem-subsea

Manufactured zinc-alloy sacrificial pipeline anode (`zinc_anode`)

Only actual zinc-alloy sacrificial anode installation of recorded alloy and mass. Aluminium anodes and impressed-current systems need distinct actual exchanges and connection records.

Selected flow: Manufactured zinc-alloy sacrificial pipeline anode
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: saipem-subsea

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Related pumping/compressor/valve station construction (`station`)

Integral declared station or independently accepted related station; actual civil/equipment/control scope.

Inputs

Product flows

Fresh ready-mixed concrete supplied for station foundations (`fresh_concrete`)

Only actual delivered fresh ready-mix of documented composition, strength class, moisture and density. Pumping, placing, compaction, curing and washout remain site tasks. Cast-In-Place Concrete identity already describes onsite mixing/placing and is not the purchased mixture. Actual site batching requires separate cement, aggregate fractions, water and admixture rows.

Selected flow: Fresh ready-mixed concrete supplied for station foundations
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Hot rolled rebar steel (`lowalloy_rebar`)

Only actual hot-rolled low-alloy rebar with carbon <=0.2% matching the factory-gate public specification; require mill certificate and weighed issued mass. Other carbon/alloy classes use a distinct exact row.

Selected flow: Hot rolled rebar steel 43050e3b-42be-465c-a021-17f606484151
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Non-alloy carbon-steel reinforcing bar (`carbon_rebar`)

Only actual non-alloy carbon-steel rebar; record grade and delivered state. Do not use low-alloy C<=0.2% identity or a wind-farm-only rebar record without matching evidence.

Selected flow: Non-alloy carbon-steel reinforcing bar
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Pump (`liquid_pump`)

Use actual complete factory-supplied liquid pumps supplied for the related long-distance pumping station, including attributable pre-acceptance damage and replacement consumption under b_consumed_inputs; accepted installed pumps are recorded separately. Record fluid, model, duty, casing/impeller, delivered assembly and measured net mass; define whether drive is included so a separate motor is not duplicated. This is not operational pumping electricity.

Selected flow: Pump bbd91be4-dc00-44c2-8bc1-f67ee79174a7
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: un-cpc3-2025

Manufactured natural-gas compressor package (`gas_compressor`)

Only actual supplied natural-gas compressor package at a related station; declare included driver, ancillary skids, seals, pressure/duty and net mass. Separate station civil works, installation, prehandover testing and later compressor operation.

Selected flow: Manufactured natural-gas compressor package
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Steel valve (`steel_valve`)

Only actual supplied steel isolation valve matching the purchased plant-delivery identity. Record valve type, bore, pressure class, actuator inclusion and net mass; supplier-to-site transport and installation are separately measured. Other alloy/body materials need distinct identities.

Selected flow: Steel valve 3cb88a81-618f-4fa5-814e-46399b121622
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Low-voltage cable (`lv_cable`)

Only actual CN factory-gate cable of matching GB/T 12706.1-2020 specification, voltage <=1000 V and recorded conductor, section, insulation/sheath and installed length. Preserve Length, not Mass; internal copper/polymer contents are not extra purchased inputs. Other origin/voltage/specification requires another identity.

Selected flow: Low-voltage cable 49101b44-20cc-46a0-adfb-af07e4cc8908
Flow property / unit: Length / m
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-construction-2017

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Concrete-equipment alkaline washwater (`concrete_washwater`)

Only actual separately captured concrete-equipment washwater delivered for treatment; record pH, suspended solids, volume and destination. It is not a direct freshwater release and not electrolytic-manganese washing wastewater.

Selected flow: Concrete-equipment alkaline washwater
Flow property / unit: Volume / m3
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_waste
Sources: ferc-upland-2013

Elementary flows

Process: Pressure tests, conditioning and tie-in (`commissioning`)

All actual acceptance tests, cleaning, repair/retest and tie-in; individual water/gas media conditional.

Inputs

Product flows

Compressed gaseous nitrogen for pipeline purging (`nitrogen_purge`)

Only actual nitrogen purging/drying/inerting specified by the project, with actual purity, pressure/temperature, delivered mass and method. Not mandatory for every water/liquid line. CN plant Volume identity lacks the actual compressed state basis; bottling inerting is a different process.

Selected flow: Compressed gaseous nitrogen for pipeline purging
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_testing
Sources: phmsa-hydrotest

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Spent pipeline hydrostatic-test water sent for treatment (`test_wastewater`)

Only actual post-test water sent across a technosphere treatment interface; record initial source, additives, contamination analyses, reused volume and actual destination. Exclude recirculation and direct discharge recorded in separate elementary rows.

Selected flow: Spent pipeline hydrostatic-test water sent for treatment
Flow property / unit: Volume / m3
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_testing
Sources: phmsa-hydrotest; ferc-wetland-2013

Elementary flows

Water directly released to fresh water (`freshwater_discharge`)

Only actual measured direct release of the water substance to an identified freshwater receiving body. If foreground treatment occurs, measure the release after that treatment; if no treatment occurs, retain the actual direct release. Pollutant substances are additional exact elementary rows based on analysis. This is not waste sent to sewer/treatment, marine release, withdrawal or consumed water; do not infer harmlessness from this row.

Selected flow: Water 5e50fc01-19c6-4377-a1cc-bc65a12498ea
Flow property / unit: Volume 93a60a56-a3c8-22da-a746-0800200c9a66 / m3
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_testing
Sources: ferc-wetland-2013

methane (fossil) (`fossil_methane_vent`)

Only actual prehandover vent/leak of identified fossil methane to external air/unspecified, immediate release. Determine methane component mass from measured gas quantity/composition; not total natural gas, not flared methane, not a routine operating emission and not a mandatory construction release.

Selected flow: methane (fossil) 08a91e70-3ddc-11dd-9610-0050c2490048
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_air
Sources: ferc-construction-2017

dinitrogen (`nitrogen_release`)

Only measured molecular nitrogen, CAS 7727-37-9, actually vented from the declared prehandover nitrogen-purge task to external air/unspecified immediately. Reconcile delivered, retained and recovered nitrogen; this is neither NO, NO2 nor N2O and is not inferred as compulsory from a nitrogen input.

Selected flow: dinitrogen fe0acd60-3ddc-11dd-aad2-0050c2490048
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_air
Sources: phmsa-hydrotest

Process: Backfill, reinstatement and cleanup (`restoration`)

Actual construction disturbance, temporary works removal and required handover restoration.

Inputs

Product flows

Uncontaminated imported topsoil (`topsoil`)

Only actual imported topsoil for final reinstatement; record provenance, soil condition, quantity and reuse separately. Original site topsoil stripped/stored/replaced is internal stock and must not carry a second production burden.

Selected flow: Uncontaminated imported topsoil
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_materials
Sources: ferc-upland-2013

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Reusable construction asset manufacture attribution (`assets`)

Actual included reusable assets with conserved and supported manufacture shares.

Inputs

Product flows

Manufactured hardwood access mat (`timber_mat`)

Only actual reusable manufactured hardwood mat included in the construction account. Record same-configuration net mass, moisture, cumulative actual uses and a conserved attributable manufacture share; generic lumber does not identify a complete mat.

Selected flow: Manufactured hardwood access mat
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_assets
Sources: ferc-wetland-2013

Manufactured diesel crawler excavator (`crawler_excavator`)

Only actual included equipment-manufacture attribution, using measured same-configuration net mass and supported cumulative actual activity/share. Dismantling/recycling excavator identity and a default 10 L/h are not construction-manufacture evidence. Actual operating fuel is in site_support.

Selected flow: Manufactured diesel crawler excavator
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_assets
Sources: ferc-construction-2017

Manufactured pipelay construction vessel (`pipelay_vessel`)

Only actual included vessel-manufacture share with traceable lightship configuration mass and supported cumulative construction activity. Operating bunkers are offshore input; do not reset the full manufacture burden per project.

Selected flow: Manufactured pipelay construction vessel
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_assets
Sources: saipem-subsea

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Task-specific equipment operation, water and site emissions (`site_support`)

All included tasks; each exchange requires actual occurrence and applicable identity.

Inputs

Product flows

Diesel fuel (`site_diesel`)

Only measured diesel supplied and burned for actual excavating, bending, welding generators, cranes, pumps, station civil works, testing and restoration tasks; assign each fuel batch once to task/equipment. Generic public identity leaves fuel grade/refinery/provider unspecified; actual fossil/biogenic fraction is collected, not inferred.

Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_energy
Sources: ferc-construction-2017

Alternating current (`cn_lv_power`)

Only actual CN grid-average user supply below 1 kV at the construction user meter, matching region/year/provider and delivered voltage. Preserve the public Net calorific value property and energy group; other regions or generator output require separate identities.

Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
Flow property / unit: Net calorific value / MJ
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_energy
Sources: ferc-construction-2017

Alternating current (`cn_mv_power`)

Only actual CN grid-average user supply at 1–35 kV matching the construction delivery point and source region/year; do not substitute low-voltage identity or add generation losses already in the user-supply dataset.

Selected flow: Alternating current 3d76981f-964a-4865-b588-0e067a2a1163
Flow property / unit: Net calorific value / MJ
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_energy
Sources: ferc-construction-2017

Process Water (`treated_process_water`)

Only actual treated technosphere water supplied for site mixing, dust control, cooling, curing or hydrotest, with each use separately metered. Preserve public Mass/kg; volume conversion needs measured batch density at temperature. No default water treatment or upstream coverage follows from this generic identity. Raw river/groundwater withdrawal is separately represented and not also counted for purchased water.

Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_water
Sources: ferc-construction-2017; ferc-wetland-2013

Waste flows

Elementary flows

river water (`river_withdrawal`)

Only actual direct river-water resource withdrawal into the foreground, not purchased treated water; preserve Volume/m3, extraction coordinates/country, dates, permit and actual return/disposal. Water scarcity interpretation must use the actual process location; withdrawal is not consumption.

Selected flow: river water 805a7346-1664-4483-afe3-4b224be5e361
Flow property / unit: Volume / m3
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_water
Sources: ferc-wetland-2013

ground water (`groundwater_withdrawal`)

Only actual direct groundwater resource withdrawal into the construction boundary, including dewatering even when bypassed immediately to disposal. Meter gross extraction and each actual return/disposal separately with source/location, rather than deleting extraction because it is nonconsumptive. Do not treat bypass dewatering as treated supply or net consumption; background withdrawal embedded in purchased water is not duplicated.

Selected flow: ground water 4f462198-40cd-4184-8733-86648a20dc3f
Flow property / unit: Volume / m3
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_water
Sources: ferc-construction-2017

Outputs

Product flows

Waste flows

Groundwater-dewatering water sent for treatment (`dewatering_wastewater`)

Only actual construction groundwater-dewatering water transferred to a technosphere treatment receiver, with chemistry, volume, contamination and destination recorded. Do not also record that volume as a direct environmental return; actual treatment outputs belong to the correct treatment boundary.

Selected flow: Groundwater-dewatering water sent for treatment
Flow property / unit: Volume / m3
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_water
Sources: ferc-construction-2017

Elementary flows

carbon dioxide (fossil) (`fossil_co2`)

Only evidenced fossil-carbon dioxide directly emitted by included site/transport/vessel fuel combustion to external air/unspecified, immediately. Use measured fossil carbon balance or an applicable source-bound factor; fuel presence alone supplies no amount. Separate biogenic carbon, upstream emissions and land-use-change carbon.

Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_air
Sources: ferc-construction-2017

nitrogen monoxide (`molecular_no`)

Only measured or specifically modelled molecular NO from actual included activity to external air/unspecified, immediate. Require NO speciation and applicable equipment/fuel/control evidence. NOx-as-NO2, NO2, nitrite and N2O cannot replace NO.

Selected flow: nitrogen monoxide 08a91e70-3ddc-11dd-96ee-0050c2490048
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_air
Sources: ferc-construction-2017

nitrogen dioxide (`molecular_no2`)

Only actual molecular NO2, CAS 10102-44-0, emitted to external air/unspecified, immediately. Do not reinterpret NOx expressed as NO2-equivalent or the database synonym N2O4 as measured molecular NO2.

Selected flow: nitrogen dioxide 08a91e70-3ddc-11dd-96e5-0050c2490048
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_air
Sources: ferc-construction-2017

particles (PM2.5 - PM10) (`pm_2_5_10`)

Only evidenced external-air release of the 2.5–10 micrometre fraction from actual exhaust, earth handling or cutting. Exclude internal workplace exposure and captured dust. Do not add total PM10 to this fraction without removing overlap.

Selected flow: particles (PM2.5 - PM10) 08a91e70-3ddc-11dd-9501-0050c2490048
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_air
Sources: ferc-construction-2017

Airborne particles smaller than 2.5 micrometres (`pm_under_2_5`)

Only evidenced entire <2.5 micrometre fraction released to external air/unspecified; partial 0.2–2.5 micrometre non-urban/stack identities and soot mixtures do not represent this full fraction. Do not infer a particle-size distribution.

Selected flow: particles (PM2.5) 08a91e70-3ddc-11dd-9293-0050c2490048
Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_air
Sources: ferc-construction-2017

Particulate matter, particle size unspecified (`unsized_dust`)

Only actual exterior fugitive dust release for which particle size is genuinely unspecified. Public identity explicitly does not impose its historical clinker case factor or chemical composition on this use. Quantify from applicable site evidence; never sum this total with overlapping resolved fractions.

Selected flow: Particulate matter, particle size unspecified 0ce3dedb-caca-407b-a856-a90470eb8ec0
Flow property / unit: Mass / kg
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_air
Sources: ferc-construction-2017

Liquid groundwater-dewatering water directly returned to fresh water (`dewatering_freshwater_return`)

Only actual measured liquid water returned from construction dewatering to an identified freshwater receiver after any foreground treatment. It reconciles gross groundwater extraction without assuming zero consumption, clean discharge or equal input/output. Analyse separately released contaminants and add exact substance rows; wastewater to treatment and return to sea/soil require their distinct rows.

Selected flow: Water 5e50fc01-19c6-4377-a1cc-bc65a12498ea
Flow property / unit: Volume 93a60a56-a3c8-22da-a746-0800200c9a66 / m3
Amount rule: Use the measured, reconciled attributable quantity from the linked protocol; aggregate per declared reference flow; no default amount.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_water
Sources: ferc-construction-2017; ferc-wetland-2013

Process: Final inspection and complete delivery (`handover`)

All declared physical works and acceptance interfaces.

Inputs

Product flows

Waste flows

Elementary flows

Outputs

Product flows

Accepted complete long-distance pipeline delivery unit (`finished_pipeline`)

One complete as-built and accepted pipeline system or explicitly identified independently delivered related station, with all declared integral works and tests accounted for. A pipe bundle, construction service, unaccepted reach or selected easy subtask is not this output.

Selected flow: Accepted complete long-distance pipeline delivery unit
Flow property / unit: Number of items / item
Amount rule: 1 item
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_delivery
Sources: un-cpc3-2025

Waste flows

Elementary flows

7. Allocation and Co-product Handling

rule_id	Rule	source_ids
a_direct	Measure direct attribution by unit/reach/station/task. Separate shared equipment, water and logistics meters/activities first; any remaining allocation follows actual load/activity and conserves totals. Cost, default length or design load is not an arbitrary allocation key.	ferc-construction-2017
a_stock	Same-site soil, water and drilling-fluid reuse is an internal transfer: retain balances without repeatedly counting external purchases/withdrawals. Material manufacture and downstream waste treatment are separate; scrap labels grant no automatic substitution credit.	ferc-wetland-2013; ferc-upland-2013
a_reuse	Attribute asset/component manufacture from actual same-configuration net mass and supported dimensionless beneficiary shares, each share in [0,1] and cumulatively <=1 across all projects/periods/reuses. Record actual activity denominator and evidence; unknown lifetime/beneficiaries require review, never full manufacture reset per project.	ferc-construction-2017
a_product	The reference output is only the declared complete entity. Retained existing assets and transferred equipment are not newly manufactured co-products. Actual independently delivered co-products require process/measurement separation first, followed by physically evidenced allocation and review.	un-cpc3-2025

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_delivery	handover	finished_pipeline	Acceptance and as-built register	asset/site/interface ids; country; fluid; actual applicable line length/bore/wall/route/pressure/duty; included station geometry/equipment/BOM; not_applicable scope evidence; test medium/criteria/results; weld/coating inspection; rework; restoration; complete accepted count	Survey from traceable as-built geometry and calibrated instruments, reconcile contract scope/BOM with signed acceptance and test records; verify entire delivery state before counting output.	item	each delivery and correction	whole actual construction through acceptance	same declared unit/interfaces	per declared reference flow	survey/calibration files; acceptance and inspection records
cp_materials	pipe_installation; earthworks; crossings; offshore; station; restoration	each supplied atomic material/assembly	Receipts, issue/return, stock and supplier records	row_id; lot/grade/specification; material/formulation/lining/coating; supplier country/interface; issued/returned/stock; measured net mass/length/volume; temperature; density or linear mass; station assembly inclusion ; opening and closing reusable stock; verified transfers; pre-acceptance damage/rejection/replacement; separate consumed and accepted installed quantities	Weigh net delivered/issued material with calibrated scale or traceable lot certificates; reconcile start/end stocks and returns against installed geometry and actual BOM. Measure density/linear mass only for the same lot/state; exclude packaging tare and embedded items counted within complete supplied assemblies. Apply b_consumed_inputs in the row native unit: gross attributable receipts + opening stock - verified returns/transfers - closing reusable stock; include consumed losses and replacements, with accepted installation and waste reconciled separately.	kg; m; m3	each delivery/issue/return	all lots of construction/rework	same unit; tagged task/station/reach	per declared reference flow	weigh tickets; mill certificates; formulations; actual BOM/stock reconciliation
cp_logistics	logistics	transport_diesel	Vehicle and consignment ledger	vehicle/task; origin/destination; actual distance; payload; empty return; diesel grade/fossil fraction; supplied/burned fuel; opening/closing fuel stock; supplier transport coverage	Use fuel meter/refuelling and dispatch records; reconcile loading quantities and included outbound/return trips; subtract no distance by assumption. If using linked transport-service datasets instead of fuel, declare exact activity and remove included fuel and emissions from this account.	kg; km	each trip and refuelling	all actual construction deliveries and waste trips	unit-specific route ledger	per declared reference flow	fuel meter calibration; dispatch and trip logs; supplier boundaries
cp_energy	site_support; offshore	each fuel or delivered-voltage electricity	Meter, fuel and equipment/task logs	row_id; meter/voltage; country/year/provider; task/equipment; start/end readings; actual activity/idle hours; fuel quantity/grade/fossil fraction; density; heating-value evidence; vessel bunker/task; attribution shares	Read calibrated user meters, weighed fuel issues or traceable refuelling; reconcile onsite generators and marine tasks separately. Attribute shared meter quantities using actual metered task demand or supported activity, with full-period quantities conserved. Convert kWh to MJ using 3.6; mass-to-fuel-energy needs actual applicable LHV, not an assumed flow secondary property.	kg; kWh; MJ	each shift, fuel issue and meter period	entire site/vessel construction and retest	declared unit/tasks plus separately identified shared beneficiaries	per declared reference flow	meter calibration; fuel certificates; time/task and conserved attribution ledger
cp_water	site_support	treated_process_water; river_withdrawal; groundwater_withdrawal; dewatering_freshwater_return; dewatering_wastewater	Supply, intake, use, recycle and dewatering meters	source/type/country/location; treatment/interface; use/task; mass/volume/temperature/density; intake; recycle; discharge; stock; dewatering; permits	Meter each actual external source and destination. Weigh treated Mass-reference water or convert metered volume with same-state measured density. Track internal recirculation without counting it as a fresh external input each pass; retain separate groundwater dewatering bypass volumes and receiving interface.	kg; m3	each intake/use/discharge event	whole construction including hydrotest	same unit, identified water bodies and supplier	per declared reference flow	calibrated meters; water balance; actual source quality and permits
cp_testing	commissioning	nitrogen_purge; test_wastewater; freshwater_discharge	Test-medium and commissioning ledger	test section/interface; fluid; pressure/temperature/hold/leak specification; pump/compressor activity; source medium purity/state; delivered and recovered mass/volume; water additives; reuse; discharge destination and analyses; repairs/retests	Use approved actual project specification and calibrated pressure, temperature, flow and gas/volume measurements; retain test results, leakage repairs and repeats. Establish nitrogen density from applicable state/composition evidence if converting volume; never equate unspecified compressed volume with normal volume. Separate wastewater sent to treatment from direct discharge and measure each analysed substance separately.	kg; m3; pressure/temperature/time	each test, repair, retest and conditioning event	actual postconstruction prehandover tests only	same pipeline unit and receiving interface	per declared reference flow	calibration; test/inspection and chemical analysis; actual approval documents, not PCR compliance
cp_waste	earthworks; pipe_installation; crossings; station	each segregated waste	Waste weighbridge, composition and destination register	row_id; source task; substance/material/state; net mass/volume/moisture/solids; contamination; onsite reuse; storage; actual carrier/treatment/discharge destination	Measure segregated streams with calibrated scales/meters and representative state/composition analyses. Reconcile generation, reuse, stocks and actual outbound quantities. Treatment/transport modules must match actual destination and cannot be inferred from generic recycling or landfill labels.	kg; m3	each stream transfer and stock record	all actual construction and rework	same unit and real destination	per declared reference flow	weigh tickets; laboratory analyses; waste/transport/treatment acceptance receipts
cp_assets	assets	each reusable asset manufacture share	Asset serial/configuration and cumulative beneficiary ledger	asset id/configuration; measured net mass; manufacturing boundary; project actual activity; prior/later beneficiaries; supported total life activity or actual cumulative allocation basis; dimensionless attributed shares; uncertainties	Use calibrated same-configuration net mass weighing or traceable manufacturer weighing records, exclude transport packaging. Retain evidence for total manufacture allocation activity and actual project share; track cumulative shares across all projects/periods/uses and ensure their sum <=1. Unknown lifetime/activity is a review gap; never reset a complete manufacturing burden per project.	kg; dimensionless share; actual activity unit	each asset/use and cumulative ledger update	construction project plus documented cross-project beneficiary horizon	asset serial tied to unit and other beneficiaries	per declared reference flow	weighing records; supported life/activity evidence; cumulative conserved share ledger
cp_air	site_support; commissioning	each elementary air emission	Measured species/size/compartment and activity record	row_id; equipment/task/date; actual substance/CAS; fossil/biogenic component; external medium/subcompartment/time; controls; measured release or applicable factor/source; activity basis; gas composition; particle-size fraction; uncertainty; receiver noise/vibration measurements	Use calibrated emission/speciation measurements or explicitly supported equipment/fuel/control-specific factors with real activity. Record factor provenance/basis and do not turn NOx equivalents into molecular NO/NO2. Fuel carbon balance separates fossil/biogenic carbon; purge/vent calculations use measured composition/state and remove flared portions. Distinguish emitted external dust from captured dust and workplace measurements. Keep noise/vibration as measured receiver/event context unless an applicable quantified flow and assessment method are independently established.	kg; separate noise dB/time/context	each actual activity/measurement interval	all included construction/preacceptance releases	same unit and true external receiving compartment	per declared reference flow	calibration; species/size and fuel analyses; applicable model/factor evidence; uncertainty and uncovered effects

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_reference	finished_pipeline	Record 1 item only when every interface, physical work and required test for the same complete unit is actually accepted; purchased pipe length is not accepted-entity count.	cp_delivery	reference output per declared reference flow	un-cpc3-2025
calc_stock	all material and waste rows	Per declared reference flow reconcile opening stock, receipts, closing stock, returns, installed amount, waste and internal reuse by lot; conserve the same substance/state and include rework. Total input mass is not construction-reference mass. Apply b_consumed_inputs to supplied inputs, including pre-acceptance consumed losses and replacements; accepted installed amounts are not the input quantity.	cp_materials; cp_waste	net attributable amount of each substance per declared reference flow	ferc-construction-2017
calc_utilities	transport_diesel; site_diesel; marine_gasoil; cn_lv_power; cn_mv_power	Per declared reference flow sum measured attributable quantities; multiply kWh by 3.6 to obtain MJ. Fuel volume-to-mass uses measured same-state density; energy conversion uses supported actual LHV. Shared task amounts cannot exceed the complete corresponding meter-period total.	cp_energy; cp_logistics	kg or MJ per declared reference flow	ferc-construction-2017
calc_water	treated_process_water; river_withdrawal; groundwater_withdrawal; dewatering_freshwater_return; dewatering_wastewater; test_wastewater; freshwater_discharge	Per declared reference flow reconcile each external intake/supply, storage, actual reuse and external destination. Convert Mass-reference water volume with same-state measured density. Withdrawal, consumption, wastewater to treatment and direct discharge are separate quantities; internal recycle is not repeated external withdrawal.	cp_water; cp_testing	separate kg or m3 per declared reference flow	ferc-wetland-2013
calc_emission	all elementary air emission rows	Per declared reference flow use measured substance release, or document applicable factor times real activity with its units. Fossil CO2 uses measured oxidized fossil carbon multiplied by molecular mass ratio 44/12; assume neither all-fossil nor complete oxidation. NOx equivalents, total PM or generic factors do not establish actual species/fraction.	cp_air	substance-specific kg per declared reference flow	ferc-construction-2017
calc_assets	timber_mat; crawler_excavator; pipelay_vessel	Per declared reference flow attributable manufacture amount = measured same-configuration net asset mass times supported dimensionless manufacture share. Across all beneficiary projects/reuses cumulative shares <=1. Unknown activity denominator/lifetime remains review, with no default share.	cp_assets	attributable manufacture kg per declared reference flow	ferc-construction-2017

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_entity	all inventory rows	The same actual interfaces/configuration/complete delivery state must agree with geometry and testing evidence; omit neither actually included pipeline nor station works. Partial delivery is explicitly incomplete.	cp_delivery; cp_materials
dq_measure	all inventory rows	Retain calibration, units, lots, temperature/pressure, density and formulation evidence. Same-lot net amounts, rework/retest, stocks and attribution balances are traceable; no default recipes/losses/energy.	cp_materials; cp_energy; cp_water; cp_testing
dq_environment	all elementary rows	Identify substance, fossil/biogenic origin, receiving medium/subcompartment, particle size and release time; retain uncovered substances and method uncertainty. Noise/vibration uses real receiver location/frequency/time/instrument records; never convert arbitrarily to mass or claim zero from a missing identity.	cp_air; cp_water
dq_scope	whole dataset	Disclose separate manufacture, transport, construction, operation/maintenance and final demolition coverage/gaps. Historical guidance is not current law; supplied state and project specification need actual evidence.	module coverage register; actual specifications
dq_uuid	all UUID-bearing rows	Check public primary property and every applicability limitation individually, with official Chinese names. Unresolved identity remains review, never forced matching or publication readiness.	direct identity and supplier evidence
dq_assets	assets	Independently review actual manufacture shares and cumulative beneficiary basis; unknown lifecycle activity cannot establish manufacturing completeness.	cp_assets

9. Validation Rules

rule_id	Rule	source_ids
v_complete	All required and actually applicable conditional processes, complete reference delivery, bilingual row_id/rule_id sequences, correct basis and protocols must be present. Missing actually applicable measured line/station geometry or testing information makes the dataset incomplete; require evidenced not_applicable for genuinely nonincluded entity attributes.	un-cpc3-2025
v_boundary	Check supplied/site state, upstream/construction and pre/posthandover boundaries; prevent duplicate embedded materials, utilities, transport fuel, emissions and internal recycles.	ferc-construction-2017; ferc-wetland-2013
v_identity	Every adopted identity must meet public substance, route, geography, voltage, primary property/unit and environmental compartment limits. Exact empty-UUID rows remain review; do not claim complete flow identity.	ferc-construction-2017
v_tests	Check actual medium/state, test sections, results and repair/retest. Mill testing does not replace site acceptance; a passed test is not a PCR guarantee of no defects or regulatory approval.	phmsa-hydrotest
v_balance	Measured material/energy/water/waste and shared activities conserve totals; each asset cumulative manufacture share <=1. Unknown lifetime/activity/relationships remain disclosed review, not default-filled balances.	ferc-construction-2017
v_emissions	Quantify only actual substance/compartment with applicable evidence. NO, NO2, NOx equivalents, particle fractions, fossil/biogenic carbon, liquid water/wastewater/resource water are not interchangeable; unsupported amounts remain unknown.	ferc-construction-2017

10. Published Dataset Profile

Field	Value
dataset_role	foreground physical construction-delivery dataset
downstream_use	secondary_dataset; background_dataset after applicable scope/identity and independent review
allowed_use	Same-configured/interface/region/period/actual-route long-distance pipeline delivery modelling; stage-explicit downstream lifecycle extension
excluded_use	Generic per-kilometre emission factor; urban distribution mains; pipe manufacture; construction service; transport operation/whole-life result; automatic compliance/approval
required_metadata	All reference qualifiers; geography/time; as-built quantities/configuration; tests/acceptance; supply states; actual processes/equipment; factor/unit provenance; material/transport upstream links; manufacture shares; internal reuse and destinations
required_quality_disclosure	Candidate methodology review state; unresolved identities/additional rows; upstream-module coverage; measurement/factor/allocation uncertainty; excluded operation/maintenance/demolition and uncovered noise/ecology; dated source limitations
update_trigger	Actual material/fluid/bore/length/wall/station/method/supplier-voltage/geography/acceptance-specification/activity change, or reviewed new evidence/identity

Raw downloads

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pcr.en-US.md87 KB · eb6d19a05cd2…
manifest.yaml10 KB · 436700772d7b…
pcr.zh-CN.md76 KB · 3ec00c47194e…
structured.yaml115 KB · b0ea6fef6edb…

Structured rule index

This index comes from verified structured.yaml and retains the canonical English rule text.

System boundary rules · 6

Rule ID	Applies to	Rule	Source IDs
`b_complete_delivery`	foreground_system_boundary	Include actual mobilisation, route/working-area preparation, topsoil segregation, trench or support works, pipe receipt/stringing/bending, jointing and NDT, applicable coating repair, lowering/laying/anchorage, backfill, station civil/equipment installation, testing/retest, tie-in, required handover restoration and cleanup. Shared utility/emission records are task tagged and counted once.	ferc-construction-2017, ferc-upland-2013, saipem-subsea
`b_routes`	foreground_system_boundary	Derive open-cut/HDD/tunnel/overland-supported/submarine and station requirements from actual design/as-built records. Include actual water control, drilling-fluid management, lay/support vessels, trench/protection works and shore approach. Missing route materials or processes must be added as atomic rows before a complete project dataset; conditional cards cannot delete actual scope.	ferc-wetland-2013, saipem-subsea, un-cpc3-2025
`b_supplied_state`	foreground_system_boundary	Separate supplied-pipe/coating/assembly manufacture from field joining, protection, transport and installation. Supplier factory testing is upstream; actual construction tests are foreground. Record actual onsite fabrication/batching as distinct inputs/processes; never duplicate embedded steel/concrete/water or coating ingredients.	ferc-construction-2017, nwpipe-steel-water-2019, phmsa-hydrotest
`b_consumed_inputs`	foreground_system_boundary	For every supplied material or assembly input, construction/installation applicability identifies the intended work, not only successfully installed quantities. In each native unit use attributable gross receipts + opening stock - verified returns/transfers - closing reusable stock; include pre-acceptance spillage, damage, rejected-but-consumed items and replacements. Verified returns and reusable carryover are excluded from consumed input, while any attributable handling, transport or rework remains. Reconcile installed acceptance and waste separately; do not cancel consumed manufacture. Reusable temporary assets retain their conserved manufacturing share under the asset-allocation rules.
`b_stages`	foreground_system_boundary	Include removal of existing obstructions and temporary works actually needed for construction, without pretending it is future final demolition. Exclude posthandover transport operation, routine pumping/compression, maintenance/renewal and final demolition; extend separately with actual activity/duration/fate evidence.	ferc-construction-2017, phmsa-hydrotest
`b_environment`	foreground_system_boundary	Direct water-resource inputs, purchased technosphere water, wastewater to treatment and elemental discharge are different interfaces. Record emissions only for actual substance/media and evidenced occurrence. Noise, vibration, land/ecology, waterbody disturbance and drainage are surveyed impact context; lack of an applicable quantified flow is an explicit coverage gap, not zero impact.	ferc-construction-2017, ferc-wetland-2013, ferc-upland-2013

Allocation rules · 4

Rule ID	Applies to	Rule	Source IDs
`a_direct`	foreground_burden_allocation	Measure direct attribution by unit/reach/station/task. Separate shared equipment, water and logistics meters/activities first; any remaining allocation follows actual load/activity and conserves totals. Cost, default length or design load is not an arbitrary allocation key.	ferc-construction-2017
`a_stock`	foreground_burden_allocation	Same-site soil, water and drilling-fluid reuse is an internal transfer: retain balances without repeatedly counting external purchases/withdrawals. Material manufacture and downstream waste treatment are separate; scrap labels grant no automatic substitution credit.	ferc-wetland-2013, ferc-upland-2013
`a_reuse`	foreground_burden_allocation	Attribute asset/component manufacture from actual same-configuration net mass and supported dimensionless beneficiary shares, each share in [0,1] and cumulatively <=1 across all projects/periods/reuses. Record actual activity denominator and evidence; unknown lifetime/beneficiaries require review, never full manufacture reset per project.	ferc-construction-2017
`a_product`	foreground_burden_allocation	The reference output is only the declared complete entity. Retained existing assets and transferred equipment are not newly manufactured co-products. Actual independently delivered co-products require process/measurement separation first, followed by physically evidenced allocation and review.	un-cpc3-2025

Validation rules · 6

Rule ID	Applies to	Rule	Source IDs
`v_complete`	foreground_dataset_conformance	All required and actually applicable conditional processes, complete reference delivery, bilingual row_id/rule_id sequences, correct basis and protocols must be present. Missing actually applicable measured line/station geometry or testing information makes the dataset incomplete; require evidenced not_applicable for genuinely nonincluded entity attributes.	un-cpc3-2025
`v_boundary`	foreground_dataset_conformance	Check supplied/site state, upstream/construction and pre/posthandover boundaries; prevent duplicate embedded materials, utilities, transport fuel, emissions and internal recycles.	ferc-construction-2017, ferc-wetland-2013
`v_identity`	foreground_dataset_conformance	Every adopted identity must meet public substance, route, geography, voltage, primary property/unit and environmental compartment limits. Exact empty-UUID rows remain review; do not claim complete flow identity.	ferc-construction-2017
`v_tests`	foreground_dataset_conformance	Check actual medium/state, test sections, results and repair/retest. Mill testing does not replace site acceptance; a passed test is not a PCR guarantee of no defects or regulatory approval.	phmsa-hydrotest
`v_balance`	foreground_dataset_conformance	Measured material/energy/water/waste and shared activities conserve totals; each asset cumulative manufacture share <=1. Unknown lifetime/activity/relationships remain disclosed review, not default-filled balances.	ferc-construction-2017
`v_emissions`	foreground_dataset_conformance	Quantify only actual substance/compartment with applicable evidence. NO, NO2, NOx equivalents, particle fractions, fossil/biogenic carbon, liquid water/wastewater/resource water are not interchangeable; unsupported amounts remain unknown.	ferc-construction-2017

Processes and inputs/outputs · 11

Process ID	Process name	Input flows	Output flows
`logistics`	Construction logistics	1	0
`earthworks`	Route preparation, excavation and bedding	1	1
`pipe_installation`	Pipe receipt, jointing, protection and installation	11	1
`crossings`	Trenchless and waterbody crossings	1	2
`offshore`	Submarine pipelay and protection	3	0
`station`	Related pumping/compressor/valve station construction	7	1
`commissioning`	Pressure tests, conditioning and tie-in	1	4
`restoration`	Backfill, reinstatement and cleanup	1	0
`assets`	Reusable construction asset manufacture attribution	3	0
`site_support`	Task-specific equipment operation, water and site emissions	6	8
`handover`	Final inspection and complete delivery	0	1

Complete field inspector

Loads this record’s complete manifest and structured projection on demand; values are never truncated. Requires JavaScript.

Long-distance pipeline construction delivery

Content languages

Readiness

Classification mapping

Source

1. Scope and Applicability

2. Product Category Identity

3. Reference Flow

4. Measurement and Unit Rules

5. System Boundary

Boundary Abstraction

6. Process Inventory Structure

Process Map

Process: Construction logistics (logistics)

Inputs

Product flows

Diesel fuel (transport_diesel)

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Route preparation, excavation and bedding (earthworks)

Inputs

Product flows

Graded natural sand for pipeline bedding (bedding_sand)

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Uncontaminated excavated mineral subsoil sent off site (mineral_spoil)

Elementary flows

Process: Pipe receipt, jointing, protection and installation (pipe_installation)

Inputs

Product flows

Line pipe of a kind used for oil or gas pipelines, welded, of steel (oilgas_welded_pipe)

Manufactured welded steel water-transmission pipe (water_steel_pipe)

Manufactured seamless steel transmission pipe (seamless_pipe)

Manufactured polyethylene pressure pipe (pe_pressure_pipe)

Manufactured ductile-iron pressure pipe (ductile_pressure_pipe)

Prestressed concrete cylinder pressure pipe (pccp)

Flux Cored Wire (flux_wire)

Solid carbon-steel welding wire (solid_weld_wire)

Formulated fusion-bonded epoxy coating powder (fbe_powder)

Manufactured polyethylene heat-shrink pipeline joint sleeve (heatshrink_sleeve)

Manufactured EPDM pipe-joint gasket (epdm_gasket)

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Uncoated steel pipe-cutting offcut (pipe_steel_offcut)

Elementary flows

Process: Trenchless and waterbody crossings (crossings)

Inputs

Product flows

Dry sodium-bentonite drilling powder (dry_bentonite)

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Separated mineral drilling cuttings (drill_cuttings)

Spent aqueous bentonite drilling slurry (spent_bentonite_slurry)

Elementary flows

Process: Submarine pipelay and protection (offshore)

Inputs

Product flows

Marine gas oil supplied to pipelay vessel (marine_gasoil)

Precast concrete pipeline ballast block (ballast_concrete)

Manufactured zinc-alloy sacrificial pipeline anode (zinc_anode)

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Related pumping/compressor/valve station construction (station)

Process: Construction logistics (`logistics`)

Diesel fuel (`transport_diesel`)

Process: Route preparation, excavation and bedding (`earthworks`)

Graded natural sand for pipeline bedding (`bedding_sand`)

Uncontaminated excavated mineral subsoil sent off site (`mineral_spoil`)

Process: Pipe receipt, jointing, protection and installation (`pipe_installation`)

Line pipe of a kind used for oil or gas pipelines, welded, of steel (`oilgas_welded_pipe`)

Manufactured welded steel water-transmission pipe (`water_steel_pipe`)

Manufactured seamless steel transmission pipe (`seamless_pipe`)

Manufactured polyethylene pressure pipe (`pe_pressure_pipe`)

Manufactured ductile-iron pressure pipe (`ductile_pressure_pipe`)

Prestressed concrete cylinder pressure pipe (`pccp`)

Flux Cored Wire (`flux_wire`)

Solid carbon-steel welding wire (`solid_weld_wire`)

Formulated fusion-bonded epoxy coating powder (`fbe_powder`)

Manufactured polyethylene heat-shrink pipeline joint sleeve (`heatshrink_sleeve`)

Manufactured EPDM pipe-joint gasket (`epdm_gasket`)

Uncoated steel pipe-cutting offcut (`pipe_steel_offcut`)

Process: Trenchless and waterbody crossings (`crossings`)

Dry sodium-bentonite drilling powder (`dry_bentonite`)

Separated mineral drilling cuttings (`drill_cuttings`)

Spent aqueous bentonite drilling slurry (`spent_bentonite_slurry`)

Process: Submarine pipelay and protection (`offshore`)

Marine gas oil supplied to pipelay vessel (`marine_gasoil`)

Precast concrete pipeline ballast block (`ballast_concrete`)

Manufactured zinc-alloy sacrificial pipeline anode (`zinc_anode`)

Process: Related pumping/compressor/valve station construction (`station`)

Fresh ready-mixed concrete supplied for station foundations (`fresh_concrete`)

Hot rolled rebar steel (`lowalloy_rebar`)

Non-alloy carbon-steel reinforcing bar (`carbon_rebar`)

Pump (`liquid_pump`)

Manufactured natural-gas compressor package (`gas_compressor`)

Steel valve (`steel_valve`)

Low-voltage cable (`lv_cable`)

Concrete-equipment alkaline washwater (`concrete_washwater`)

Process: Pressure tests, conditioning and tie-in (`commissioning`)

Compressed gaseous nitrogen for pipeline purging (`nitrogen_purge`)

Spent pipeline hydrostatic-test water sent for treatment (`test_wastewater`)

Water directly released to fresh water (`freshwater_discharge`)

methane (fossil) (`fossil_methane_vent`)

dinitrogen (`nitrogen_release`)

Process: Backfill, reinstatement and cleanup (`restoration`)

Uncontaminated imported topsoil (`topsoil`)

Process: Reusable construction asset manufacture attribution (`assets`)

Manufactured hardwood access mat (`timber_mat`)

Manufactured diesel crawler excavator (`crawler_excavator`)

Manufactured pipelay construction vessel (`pipelay_vessel`)

Process: Task-specific equipment operation, water and site emissions (`site_support`)

Diesel fuel (`site_diesel`)

Alternating current (`cn_lv_power`)

Alternating current (`cn_mv_power`)

Process Water (`treated_process_water`)

river water (`river_withdrawal`)

ground water (`groundwater_withdrawal`)

Groundwater-dewatering water sent for treatment (`dewatering_wastewater`)

carbon dioxide (fossil) (`fossil_co2`)

nitrogen monoxide (`molecular_no`)