Aluminum sulfate (alum) & polyaluminum chloride (pacl) polyaluminum hydroxychlorosufate)

Ended Indefinite Delivery Contract Awarded Last action

Contract number
W912DR22D0001
Awardee
Awarding agency
Task orders
21 $13,104,227 obligated

Award facts

Opportunity
Combined order value
$13,104,227 Current and potential, with all options
Last date to order 100% complete
IDV ceiling 69% used
$18,947,000.00
Award type
Single award
Who can order
Only the awarding agency
PSC
6810 Chemicals
Set-aside
No set-aside
Competition
Full and Open Competition · 1 offer Negotiated Proposal / Quote
Pricing
Firm Fixed Price

Award details come from SAM.gov/FPDS.

About this IDV

The U.S. Army Corps of Engineers Engineering District Baltimore awarded a single-award indefinite-delivery contract to Usalco, LLC for $18,947,000 on October 1, 2021. The contract procures aluminum sulfate (alum) and polyaluminum chloride (PACl), bulk liquid water treatment chemicals, with a performance period through September 6, 2026.

Place of performance is Washington, D.C. 20016, supporting the Washington Aqueduct's potable water treatment operations at the Dalecarlia Water Treatment Plant and McMillan Filtration Plant.

The originating pre-solicitation notice posted December 14, 2020, sought these water treatment chemicals for federal civil works water purification missions. No set-aside applies; Usalco competes in full and open competition.

Since award, the contract has sustained robust delivery order activity. Recent task orders include a $3,009,675 order (October 7, 2025) for aluminum sulfate and PACl to both treatment plants through September 2026; a $2,363,334.70 order (December 30, 2024) for aluminum sulfate and PACl; a $499,999.88 order (October 16, 2024) for both chemicals; and a $65,439.97 order (May 22, 2025) for PACl. Delivery order values historically range between $310,891 and $3.01 million, with typical orders clustering in the $400,000–$525,000 band. The contract has sustained approximately twenty delivery orders across its performance to date. A unilateral modification deleted FAR clauses 52.222-21 and 52.222-26 in accordance with Executive Orders 14148 and 14173.

Task orders

Task order Ordering agency Obligated Awarded
New delivery order for aluminum sulfate and polyaluminum chloride to the dalecarlia water treatment plant and… W912DR26FA001 ENDIST Baltimore (USACE) $3,009,675
Polyaluminum chloride, bulk liquid (pacl)delivery order for the washington aqueduct W912DR25F0149 ENDIST Baltimore (USACE) $65,440
Delivery order for the purchase of aluminum sulfate and polyaluminum chloride for washington aqueduct. W912DR25F0046 ENDIST Baltimore (USACE) $2,363,335
Aluminum sulfate and polyaluminum chloride delivery order for the washington aqueduct W912DR25F0003 ENDIST Baltimore (USACE) $500,000
Delivery order for the purchase of aluminum sulfate, bulk liquid (alum) and polyaluminum chloride for washington… W912DR24F0350 ENDIST Baltimore (USACE) $119,998
Aluminum sulfate, bulk liquid (alum) delivery order W912DR24F0274 ENDIST Baltimore (USACE) $399,999
Aluminum sulfate and polyaluminum chloride delivery order W912DR24F0225 ENDIST Baltimore (USACE) $499,375
Aluminum sulfate, bulk liquid (alum) delivery order W912DR24F0180 ENDIST Baltimore (USACE) $349,864
Delivery order for the purchase of aluminum sulfate and polyaluminum chloride for the washington aqueduct. W912DR24F0102 ENDIST Baltimore (USACE) $499,768
Aluminum sulfate, bulk liquid (alum) delivery order W912DR24F0051 ENDIST Baltimore (USACE) $499,768
Aluminum sulfate, bulk liquid (alum) delivery order W912DR23F0378 ENDIST Baltimore (USACE) $424,099
Aluminum sulfate, bulk liquid (alum) delivery order for the washington aqueduct W912DR23F0269 ENDIST Baltimore (USACE) $310,892
Aluminum sulfate, bulk liquid (alum) W912DR23F0206 ENDIST Baltimore (USACE) $454,291
Aluminum sulfate, bulk liquid (alum) W912DR23F0124 ENDIST Baltimore (USACE) $484,058
Aluminum sulfate, bulk liquid (alum) W912DR23F0023 ENDIST Baltimore (USACE) $470,542
Aluminum sulfate, bulk liquid (alum) W912DR22F0324 ENDIST Baltimore (USACE) $489,348
Aluminum sulfate, bulk liquid (alum) W912DR22F0218 ENDIST Baltimore (USACE) $359,029
Aluminum sulfate, bulk liquid (alum) W912DR22F0174 ENDIST Baltimore (USACE) $461,287
Aluminum sulfate, bulk liquid (alum) W912DR22F0090 ENDIST Baltimore (USACE) $461,230
Aluminum sulfate, bulk liquid (alum)& pacl W912DR22F0033 ENDIST Baltimore (USACE) $400,258
Aluminum sulfate, bulk liquid (alum) & polyaluminum chloride (pacl) W912DR22F0002 ENDIST Baltimore (USACE) $481,973
Show all 21

Transactions

Action Obligated Date
Other Administrative Action P00003 · The purpose of this unilateral modification is to is to delete far clauses 52.222-21 and 52.222-26 in accordance with executive order 14148 and 14173. $0
Change Order P00002 · Aluminum sulfate, bulk liquid (alum) $0
Other Administrative Action P00001 · Aluminum sulfate, bulk liquid (alum) and polyaluminum chloride (pacl) polyaluminum hydroxychlorosufate $0
Original award $0

Quick answers

Who was awarded contract W912DR22D0001?

W912DR22D0001 was awarded to Usalco, LLC by ENDIST Baltimore (US Army Corps of Engineers) on October 1, 2021.

How much is contract W912DR22D0001 worth?

Orders under W912DR22D0001 have obligated $13,104,227. Their combined current value, with exercised options, is $13,104,227. W912DR22D0001's own ceiling is $18,947,000.

How many orders have been placed under contract W912DR22D0001?

21 orders have been placed under W912DR22D0001, the latest on October 7, 2025.

Who can order from contract W912DR22D0001?

W912DR22D0001 is a single award indefinite delivery contract. Only the awarding agency can place orders on it.

Was contract W912DR22D0001 competed?

The extent of competition for W912DR22D0001 was full and open competition. The government received 1 offer.

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