Repair or Alteration of Tunnels and Subsurface Structures Government Contracts

PSC Z2LC Service code

Code facts

Spend category
Facilities & Construction Facility Related Services
Contract obligations
$5,710,858 In FY2025

PSC codes and definitions come from the GSA PSC Manual and contract spending from SAM.gov/FPDS.

Market summary

Open opportunities
0 2 notices posted in the last 90 days
Contract awards
2 In the last 12 months
Obligated
$14,203,061 In the last 12 months, net of deobligations

Top buying agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of the Navy Department of Defense $13,998,255
2 Department of Veterans Affairs $356,567

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Encon Desbuild JV 3 LLC $9,599,200
2 Tsontos, Michael M., S.A. $4,399,055
3 Buckeye Industrial Piping LLC $356,567
4 Parliament LLC $7,900

Contract opportunities

No notices under PSC Z2LC are open now. These are the newest.

Notice Posted Due
Lowell Creek Tunnel Repairs, Seward, Alaska Pre-Solicitation · ENDIST Alaska (USACE) —
Lowell Creek Tunnel Repairs Industry Day Special Notice · ENDIST Alaska (USACE)
Lowell Creek Tunnel Refurbishment Seward, Alaska Pre-Solicitation · ENDIST Alaska (USACE)
Z2LC--Campus Sinkhole Repair 552-26-506 Pre-Solicitation · Veterans Integrated Service Network 10 (VHA)
Flfo replace visitor center concrete pathway Solicitation · Midwest Region (NPS) · 140P1225Q0010
Flfo replace visitor center concrete pathway Pre-Solicitation · Midwest Region (NPS) · 140P1225Q0010
Vglz 182038 repair sanitary sewer system base wide Solicitation · Michigan National Guard (ARNG) · W50S8525BA001
Technical Security Upgrade Solicitation · Department of State
Hidden Dam/ Hensley Lake - Well Destruction Award Notice · ENDIST Sacramento (USACE) · W9123825P0008 —
Hidden Dam/ Hensley Lake - Well Destruction Solicitation · ENDIST Sacramento (USACE) · W9123825Q0004
Hidden Dam/ Hensley Lake - Well Destruction Pre-Solicitation · ENDIST Sacramento (USACE) · W9123825Q0004
Vglz 182038 repair sanitary sewer system base wide Pre-Solicitation · Michigan National Guard (ARNG) · W50S8525BA001
TSU Upgrade Project Solicitation · Department of State
Water well destruction services for two permanently inactive water wells at Hidden Dam, Hensley Lake in Madera County, California. Pre-Solicitation · ENDIST Sacramento (USACE)
Borehole Drilling/Conduit Installation-Fiber Optc Award Notice · Western Area Power Administration —
Borehole Drilling/Conduit Installation for Fiber O Solicitation · Western Area Power Administration
Z2LC--552-23-504 Repair Parking Lot B128 (VA-23-00101705) VAMC DAYTON Limited / Sole Source Justification · Veterans Integrated Service Network 10 (VHA) —
Replacement of Floating Pier Brow Post -ST. LOUIS Solicitation · Coast Guard
Old Conduit Repairs at the Washington Aqueduct Solicitation · ENDIST Baltimore (USACE)
Notice of Sources Sought Pre-Solicitation · Bureau of Reclamation
McCook Levee Steel Sheetpile (SSP) Repair Pre-Solicitation · ENDIST Chicago (USACE)
Horizontal Borehole Drilling Services Solicitation · Western Area Power Administration · 89503223QWA000471
Horizontal Borehole Drilling Services Special Notice · Western Area Power Administration · 89503223QWA000471
Horizontal Borehole Drilling Services Pre-Solicitation · Western Area Power Administration · 89503223QWA000471
Construct Stormwater Runoff Diversion Award Notice · Army National Guard · W50S8D22P0012 —
BLM northwest oregon district quartzville access road culvert replacement and R Pre-Solicitation · Oregon-Washington Region (BLM)
Construct Stormwater Runoff Diversion Solicitation · Army National Guard · W50S8D22Q0009
Construct Stormwater Runoff Diversion Pre-Solicitation · Army National Guard · W50S8D22Q0009
Construct Stormwater Runoff Diversion Pre-Solicitation · Army National Guard · W50S8D22SS0001
Moss Landing Jetty Repair Pre-Solicitation · ENDIST San Francisco (USACE)
Skate Park Repairs at USCG Training Center Cape May Solicitation · Coast Guard
KS-quivira NWR-water contr struct rehab Solicitation · Fish and Wildlife Service
Repair afterbay river boat launch ramp Award Notice · Intermountain Region (NPS) · 140P1421R0001 —
Repair afterbay river boat launch ramp Solicitation · Intermountain Region (NPS) · 140P1421R0001
Afterbay river boat launch ramp extension Pre-Solicitation · Intermountain Region (NPS)
Replace underground storage tanks - romney WV Solicitation · ACC Picatinny
Repair Sewer Mains North Side Housing Area Pre-Solicitation · Air Mobility Command (USAF)
341 MW missile cable erosion and conduit repair Pre-Solicitation · Global Strike Command (USAF) · FA4626-20-R-0015
341 MW missile cable erosion and conduit repair Pre-Solicitation · Global Strike Command (USAF) · FA4626-20-R-0013
341 MW missile cable erosion and conduit repair Pre-Solicitation · Global Strike Command (USAF) · FA4626_SS_HICS_Boring
Show all 40

Recent contract awards

Award Awarded Obligated
Renovate YK-9 ordnance tunnel and provide a concrete apron to support the receipt, storage, and issuance of ordnance… N3319126F0086 · Tsontos, Michael M., S.A. · Naval Facilities Engineering Command (Navy) $4,399,055
Repair utility tunnels and generator/ transfer switch coordination N4008026F1073 · Encon Desbuild JV 3 LLC · Naval Facilities Engineering Command (Navy) $9,599,200

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $0
FY2026 $14,203,061
FY2025 $5,710,858
FY2024 $6,455,498
FY2023 $12,525,048
Rank NAICS code Obligated, FY2026–FY2027 Share
1 236220 Commercial and Institutional Building Construction $14,195,161
2 238110 Poured Concrete Foundation and Structure Contractors $7,900

Contract obligations by state

Rank Place of performance Obligated, last 12 months Share
1 Maryland $9,599,200
2 Ohio $356,567

Shares are of everything obligated under PSC Z2LC in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.

Quick answers

What is PSC Z2LC?

PSC Z2LC is Repair or Alteration of Tunnels and Subsurface Structures, a service code in PSC Z, Maintenance, Repair, Alteration Real Property.

How many government contracts for repair or alteration of tunnels and subsurface structures are there?

2 notices under PSC Z2LC were posted in the last 90 days, and none are open now. Federal agencies awarded 2 contracts under PSC Z2LC in the last 12 months, obligating $14,203,061.

How much do federal agencies spend under PSC Z2LC?

Federal contracts under PSC Z2LC obligated $5,710,858 in fiscal year 2025 and $38,894,465 in fiscal years 2023 through 2027.

Who are the largest contractors under PSC Z2LC?

The contractors with the most obligated under PSC Z2LC in fiscal years 2026 and 2027 are Encon Desbuild JV 3 LLC ($9,599,200); Tsontos, Michael M., S.A. ($4,399,055); and Buckeye Industrial Piping LLC ($356,567).

Which agencies buy the most under PSC Z2LC?

The agencies that obligated the most under PSC Z2LC in fiscal years 2026 and 2027 are Department of the Navy ($13,998,255) and Department of Veterans Affairs ($356,567).

Which NAICS codes are used with PSC Z2LC?

The NAICS codes with the most obligated under PSC Z2LC in fiscal years 2026 and 2027 are 236220 Commercial and Institutional Building Construction and 238110 Poured Concrete Foundation and Structure Contractors.

Where is the work under PSC Z2LC performed?

By place of performance, the states with the most contract obligations under PSC Z2LC over the last 12 months are Maryland ($9,599,200) and Ohio ($356,567).

What is the latest contract opportunity under PSC Z2LC?

The latest contract opportunity under PSC Z2LC is Lowell Creek Tunnel Repairs, Seward, Alaska, pre-solicitation from ENDIST Alaska (USACE), posted October 19, 2026.

On GovTribe

See everything under PSC Z2LC

  • Federal contract opportunities, awards and IDVs under this code
  • Funding analysis by contractor, agency and set-aside
  • Contacts who buy under this code
  • Ask GovTribe AI about this code
Try for free Login