National support center (NSC) operations and maintenance (o & m) services.

Active Indefinite Delivery Contract Awarded Last action

Contract number
28321322D00060004
Awardee
Awarding agency
Task orders
29 $1,115,352 obligated

Award facts

Opportunity
Combined order value
$1,115,352 Current and potential, with all options
Last date to order 95% complete
IDV ceiling 4% used
$27,974,936.68
Award type
Single award
Who can order
Only the awarding agency
NAICS code
561210 Facilities Support Services
Set-aside
No set-aside
Competition
Full and Open Competition · 7 offers Negotiated Proposal / Quote
Pricing
Firm Fixed Price
Legislative mandates

Award details come from SAM.gov/FPDS.

About this IDV

The Social Security Administration awarded a single-award indefinite-delivery contract to M.c. Dean, Inc. on November 16, 2021, for National Support Center operations and maintenance services with a contract ceiling of $27,974,936.68 and ultimate completion date of January 24, 2027.

The contract supports facilities and IT infrastructure sustainment at the SSA's National Support Center locations in Frederick, Maryland and Baltimore, Maryland. The originating solicitation (SS00-16-60042 re-compete, posted April 9, 2021) sought proposals to provide operations and maintenance services for information technology infrastructure and systems at a large federal agency, with evaluation based on technical approach, past performance, and price. The period of performance consists of a one-year base period with four one-year options. NAICS code 541511 and PSC code D302 apply.

Recent task orders issued under this contract reflect a broad range of facilities maintenance and infrastructure support work. M.c. Dean has delivered orders for HVAC and chiller system repairs and component replacements (heat recovery chiller compressor and circuit breaker replacement, chiller sand filter replacement, refrigerant leak repair), power systems work (condenser water pump rebuilds, generator battery replacements and fuel polishing), water treatment system upgrades to address Legionella control, security infrastructure maintenance (wedge barrier part reclamation, gate wearable part replacements, security barrier plate repair), fire suppression system hose replacement, photovoltaic field diagnostics, IT infrastructure work (server rebuilds, workstation replacements), and facility envelope repairs (ceiling and downspout replacement). Task orders awarded in September 2025 total approximately $290,000 across multiple infrastructure maintenance items. Work is performed at the Frederick, Maryland facility (8999 Bennett Creek Boulevard) and the Baltimore, Maryland facility (DAT building).

Task orders

Task order Ordering agency Obligated Awarded
Task order is to perform an ARC flash review of all electrical systems at the NSC located at the social security… 28321326FDS030142 Social Security Administration $129,215
Task order is to replace lighting inverter batteries located at the social security administration (SSA) national… 28321326FDS030117 Social Security Administration $76,000
Task order is to have the contractor replace the heat recovery chiller (HRC) failed compressor with a new spare, GFE… 28321326FDS030107 Social Security Administration $23,978
Task order is to repair the solar photovoltaic system inverters (solar PV) a &b by replacing the damaged IPM modules… 28321326FDS030110 Social Security Administration $156,728
Task order is to provide gate wearable part replacements located at the social security administration (SSA) national… 28321325FDS030139 Social Security Administration $56,793
Task order is to have the contractor reclaim usable wedge barrier parts prior to GSA is installing 2 new barriers to… 28321325FDS030140 Social Security Administration $4,971
To replace the water treatment controllers with a controller model that has the required output capability to add a… 28321325FDS030114 Social Security Administration $52,457
Task order is to rebuild condenser water pump (CWP#6) located at the social security administration (SSA), national… 28321325FDS030137 Social Security Administration $58,400
Task order is to provide and replace 30 batteries for 5 generators located at the social security administration… 28321325FDS030136 Social Security Administration $16,441
Task order is to replace the old activation hoses on the novac fire suppression system canisters with new hoses and… 28321325FDS030133 Social Security Administration $26,573
Task order is to provide the following services on the heat recovery chiller (HRC) which includes the replacement of… 28321325FDS030135 Social Security Administration $76,693
Task order is to provide mobile fuel polishing service to each of the 6 generator belly fuel tanks social security… 28321325FDS030134 Social Security Administration $12,870
Task order to repairing the chiller #3 within the nation support center (NSC). 28321325FDS030035 Social Security Administration $22,239
The purpose of this task order is to rebuilding OS1 server at the social security administration (SSA), national… 28321324FDS030191 Social Security Administration $13,729
The purpose of this task order is to replace the current ceiling with a new 2 x 2 grid ceiling and tile for easier… 28321324FDS030147 Social Security Administration $48,194
Task order against national support center (NSC) operations & maintenance contract to repair the facility access center… 28321324FDS030091 Social Security Administration $4,436
Task order against national support center (NSC) operations & maintenance contract for repairing chiller #4's ball… 28321324FDS030018 Social Security Administration $6,417
All 18 downspouts located on the DAT building will be replaced with a heavier gauged aluminum. This will help in… 28321323FDS030244 Social Security Administration $130,295
The a side of the PV field is not generating any electricity. 28321323FDS030240 Social Security Administration $19,886
Task order against national support center (NSC) operations & maintenance contract for repairing barrier 2B's… 28321323FDS030243 Social Security Administration $1,550
Task order against national support center (NSC) operations & maintenance contract for office of information security… 28321323FDS030184 Social Security Administration $5,475
The purpose of this task order is to repair the refrigerant leak to chiller 4 28321323FDX030147 Social Security Administration $15,269
Four sand filters attached to the (4) chillers are in need of replacement. They have reached their expiration period. 28321323FDS030108 Social Security Administration $19,974
Task order against national support center (NSC) operations & maintenance contract for control power interface board… 28321323FDS030080 Social Security Administration $17,729
Task order against national support center (NSC) operations & maintenance contract to repair diesel exhaust fluid (DEF)… 28321323FDS030081 Social Security Administration $0
Task order for control power interface board replacement for chiller number four against national support center… 28321322FDS030183 Social Security Administration $14,456
Task order against national support center (NSC) operations & maintenance contract for onyx workstation replacement. 28321322FDS030142 Social Security Administration $75,035
Task order against national support center (NSC) operations & maintenance contract for replacing generator batteries. 28321322FDS030078 Social Security Administration $12,642
Task order against national support center (NSC) operations & maintenance contract for reverse osmosis skid repairs. 28321322FDS030051 Social Security Administration $16,910
Show all 29

Transactions

Action Obligated Date
Funding Only Action P00025 · The purpose of this unilateral modification is to provide full funding in the amount of $2,759,096.58 to fund the contract through 1/24/2027. $2,759,097
Funding Only Action P00024 $689,774
Exercise an Option P00023 · The purpose of this unilateral modification is to provide funding in the amount of $344,887.08 to fund the contract through 3/24/2026. $344,887
Exercise an Option P00022 · National support center (NSC) operations and maintenance (o & m) services. Modification 22 to exercise option year 4 (OY4). $344,887
Other Administrative Action P00021 $0
Funding Only Action P00019 $1,258,000
Funding Only Action P00018 $314,500
Funding Only Action P00017 $314,500
Funding Only Action P00016 · The purpose of this unilateral modification is to provide funding in the amount of $314,500 to incrementally fund the contract through 3/31/2025; all other… $314,500
Exercise an Option P00015 · National support center (NSC) operations and maintenance (o & m) services. Modification 15 to exercise option year 3 (OY3). $314,500
Other Administrative Action P00014 · The purpose of this modification is to add an additional acor to section C3-15 2352.242-2 designation of contracting officers representative (COR) contracting… $0
Funding Only Action P00012 $1,224,817
Funding Only Action P00011 $306,207
Funding Only Action P00010 $306,207
Funding Only Action P00009 $306,207
Exercise an Option P00008 $306,207
Funding Only Action P00007 $3,242,001
Supplemental Agreement for work within scope P00006 $325,000
Exercise an Option P00005 $325,000
Funding Only Action P00004 $2,338,708
Funding Only Action P00003 $292,500
Supplemental Agreement for work within scope P00002 $0
Funding Only Action P00001 · National support center (NSC) operations and maintenance (o & m) services. Modification 1 to incrementally fund the base year of the contract through… $877,300
Original award $0
Show all 24

Quick answers

Who was awarded contract 28321322D00060004?

28321322D00060004 was awarded to M.c. Dean, Inc. by Social Security Administration on November 16, 2021.

How much is contract 28321322D00060004 worth?

Orders under 28321322D00060004 have obligated $1,115,352. 28321322D00060004's own ceiling is $27,974,937.

How many orders have been placed under contract 28321322D00060004?

29 orders have been placed under 28321322D00060004, the latest on August 31, 2026.

Who can order from contract 28321322D00060004?

28321322D00060004 is a single award indefinite delivery contract. Only the awarding agency can place orders on it.

Was contract 28321322D00060004 competed?

The extent of competition for 28321322D00060004 was full and open competition. The government received 7 offers.

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