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Office of Headquarters Procurement Services – Environmental Management support division (MA-66EM)

The Office of Headquarters Procurement Services – Environmental Management support division (MA-66EM) organization is dedicated to evaluating and contracting with businesses to support the Hanford Site cleanup mission, while maintaining compliance with the U.S. Department of Energy (DOE), Site and State requirements.

With a workforce of about 13,000 and an annual budget of slightly above $3.0 billion dollars, Hanford is committed to diligent stewardship of taxpayer, government, and Site resources. We contract with both large and small businesses to procure materials and services adhering to our quality, cost, safety, and scheduling requirements.

Businesses interested in contracting their services for the Hanford Site are encouraged to check the Contracting Opportunities page. If you are the owner of a small business, please see the Small Business Program page.

Mailing Address:

P.O. Box 550, MSIN H5-20
Richland, Washington 99352

Key Links:

Prime Contracts
General Support Services Contracts
Fee Determination Summaries
Expired Contracts
Contracting Opportunities
Contract Management Plans
Small Business Program 


Hanford Procurement Contracting Officers
Hanford Contracting Officer Representatives and Property Officials
Hanford Purchase Card Buyers

For more information regarding certification requirements, visit the Federal Acquisition Institute.
For questions or comments on this webpage, please contact Trevor Toon, (509) 376-8800.

MA-66-EM Hanford Procurement - Org Chart
Branch Chiefs
Kelly Brazil and Brenda Valadez
Kristi Morrell – GSSC/Admin Support (SLIND)

WTP Construction and Operations (WTP)
Kelly Brazil - Lead/WTP Prime CO (S)
Russell Robinson - WTP CO
Integrated Tank Disposition Contract (ITDC)
Jenise Connerly - ITDC Prime CO
Dana Looney - ITDC CS
222-S Laboratory
Heidi Weber - 222-S Lab Prime CO
Support Services Team (SST)
Megan Harrison - SST Prime CO
Trevor Toon - SST CO
Macrino (Chino) Melo - CS

GSSC Support
Aida Asevedo - GSSC (SLIND)
Michelle Sittman - GSSC (SLIND)
Derek Stelter - GSSC (ATTNX)
Jaclyn Stemp - GSSC (CASI)
Justine Frenzel Kalous - GSSC (SALGR)

 

Central Plateau Cleanup Contractor (CPCC)
Brenda Valadez - Lead/CPCC Prime CO (S)
Valerie Clark - CPCC CS
Mark Young-McMurchie - CS
Susan Hiller - CO (SACM)

HMESC
Kristin Barott-Wolff  - HMESC Prime CO
Konya Melton - HMESC CO
Chuck Skirko - CS
IHA
Tara Coleman - OccMed CO (SBPM)
Susan Hiller - CO (SACM)

GSSC Support
Alejandra (Alex) Puryear - GSSC (SLIND)
Haley Baciu - Cost Analysis Support (ATTNX)
Tim Corbett - GSSC (SLIND)
Christian Cook-Parker - GSSC (CAMEO)
Marco Rivera - GSSC (ATTNX)
John Wiltshire - GSSC (SLIND)
Austin Oser - Cost Analysis Support (ATTNX)

Last Updated 10/01/2026 11:37 AM