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A map of the proposed nearly $3 billion upgrade to the Transco natural gas pipeline that will, for the first time in 50 years, change the direction gas flows along the pipeline. The change will allow Williams to flow cheap, abundant Marcellus Shale gas to the south and southwest. The change will make the pipeline bidirectional and includes building new pipeline and upgrading compressor stations. Williams is currently in the pre-filing stage with the Federal Energy Regulatory Commission.
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ATLANTA
CHARLOTTE
RICHMOND
PHILADELPHIA
NEW YORK CITY
WASHINGTON DC BALTIMORE
ATLANTIC SUNRISE EXPANSION PROJECTTRANSCONTINENTAL GAS PIPE LINE COMPANY, LLC.
APRIL 16, 2014 GAS PIPELINE
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STA. 520STA. 517 STA. 515
STA. 505
STA. 205STA. 200
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STA. 185 WASHINGTON DC
BALTIMORE
PHILADELPHIA
YORK
TIOGA
PIKE
BERKS
LYCOMING
KENT
WAYNE SULLIVAN
LUZERNECLINTON
BUCKS
CENTRE
BRADFORD
PERRY
LANCASTERCHESTER
ADAMS
POTTER
MONROE SUSSEX
SCHUYLKILL
BURLINGTON
DAUPHIN
CECIL
MORRIS
SUSSEX
FREDERICK ATLANTICBALTIMORE
UNION
SULLIVAN
CARROLL
SUSQUEHANNA
LEHIGH
CARBON
HARFORD
ORANGEWYOMING
SNYDER
LEBANON
MIFFLIN
SALEM
JUNIATA
COLUMBIA
FAIRFAX
WARREN
CUMBERLAND
CUMBERLANDNEW CASTLE
HUNTERDON
MONTGOMERY
LACKAWANNA
MONTGOMERY
CAROLINE
SOMERSET
TALBOT
HOWARD
MERCER
CAMDEN
ULSTER
NORTHAMPTON
GLOUCESTER
PRINCE GEORGES
NORTHUMBERLAND
CAPE MAYQUEEN ANNES
DELAWARE
JEFFERSON
MONTOUR
PRINCE WILLIAM
PHILADELPHIA
UNION
CLARKE
DELAWARE
BALTIMORE CITY
WASHINGTON
FULTON
QUEEN ANNES
ESSEX
CULPEPER
PROPOSED PIPELINESPROPOSED REPLACEMENTSEXISTING TRANSCO PIPELINE
") EXISTING TRANSCO COMPRESSOR STATIONMARCELLUS SHALE BASIN
:0 80 16040Miles
FIGURE 1.1-2 REV. 3 (PO XXXX)
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PROPOSED PRELIMINARY PROJECT SCOPEATLANTIC SUNRISE EXPANSION PROJECT (Case 5D8-1)
1)2)3)4)5)
42" Central Penn Line South 30" Central Penn Line North 36" E Line GRUGAN LOOP 42" D Line UNITY LOOP 30" A & B Lines VIRGINIA Replacement
122.1956.355.459.002.52
LENGTH IN MILESPIPELINE
FACILITIES/MODIFICATIONS 6) STA 605 - Construct a Greenfield compressor station around MP 53.97) STA 610 - Construct a Greenfield compressor station around MP 100.58) Receipt meter station at Owego9) STA 520 - Add 1 ea. Solar Mars 100S (16,000 ISO HP ea.) 10) STA 520 - Replace compressor #6 & 7 internal wheels and Modify Compressor #8 aero assemblies to accomodate new flow parameters11) STA 517 - Add 1 ea. Solar Mars 100S (16,000 ISO HP ea.) with 3 bays of cooling and one scrubber12) Receipt meter station at Zick13) Interconnect at springville pipeline crossing14) Regular station at Transco tie-in MP L92.715) Tie-in at 515L40 at MP L113.75 (West Diamond)16) Regular station at Transco tie-in MP L113.75 (West Diamond)17) Regular station at Transco MP 1682.65 (River Road) with tie-in to three mainlines and ODEC lateral18) STA 190 - Modify valves and yard piping for southflow compression19) STA 190 - Add 1 X 25,000HP electric compressor unit20) STA 185 - Modify valves and yard piping for southflow compression21) STA 170 - Modify valves and yard piping for southflow compression22) STA 160 - Modify valves, yard piping and regulation for southflow compression23) STA 150 - Modify valves and yard piping for southflow compression, re-located Iredell lateral backpressure regulator24) STA 145 - Modify valves and yard piping for southflow compression25) Supplemental Odorization from Station 140 to Station 160 i. Odor masking / de-odorization of valves at valve sites for venting 11 valve sites ii. Odor masking / de-odorization of valves at 4 compressor stations (145, 150, 155, 160) iii. Odor Detection and supplemental odorization at 41 meter stations
FOR DISCUSSION PURPOSES ONLY SUBJECT TO CHANGE
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BI-DIRECTIONAL GAS FLOW
BI-DIRECTIONAL GAS FLOW
BI-DIR
ECTIO
NALG
ASFL
OW
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1516
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