The

Tronox nAVAJo ArEA UrAnIUM MInES FY2017 1ST QUArTEr FInAncIAl SUMMArY

The

Tronox nAVAJo ArEA UrAnIUM MInES FY2017 1ST QUArTEr FInAncIAl SUMMArY

Navajo Area Uranium MinesFebruary 2017

Tronox Navajo Area Uranium MinesFY 2017 Special Account Activity

Region Special Account Name Total Budget FY 2017 Spent Total Spent FY 2011 – 2017

1st Quarter

Region 6 NAUM Special Accounts06 Tronox NAUM SEC 35/36 $2.3 $0.0 $1.806 Tronox NAUM West S 10 $1.9 $0.0 $1.606 Tronox NAUM $3.8 $0.1 $2.3Subtotal Region 6 NAUM Special Accounts $8.0 $0.1 $5.7Region 9 NAUM Special Accounts09 Abandoned Uranium Mines on the Navajo Nation $3.4 $0.0 $3.409 Cove Transfer Station - Tronox $4.6 $0.0 $3.609 Mesa I Mines - Tronox $0.0 $0.0 $0.009 Section 32 AUM Site - Tronox $2.0 $0.0 $1.509 Section 33 AUM Site - Tronox $0.6 $0.0 $0.109 Tronox NAUM Cove Wash Regional Assessment $4.1 $0.2 $3.009 Tronox Navajo Area Uranium Mines $893.5 $0.2 $1.609 Tronox NAUM Cove Sitewide Conceptual Model and Data Gaps $2.5 $0.0 $0.5Subtotal Region 9 NAUM Special Accounts $910.7 $0.4 $13.6Subtotal All NAUM Special Accounts $918.6 $0.5 $19.3Quivira Mine Special Account09 NE Churchrock Quivira Mines $91.6 $0.0 $2.5Total All Special Accounts $1,010.2 $0.5 $21.8

*- Negative amounts in the budget increase/decrease column are a result of receipts moved between accounts. - Net deobligations of funds are included in the budget increase/decrease column as they increase the amount available to spend from an

account. Net deobligations are not included in the FY2017 spent columns.- Totals are rounded to the nearest million. (Number may not add due to rounding)- Values are in millions.

Contracts$9.7, 83%

SiteTravel

$0.2, 2%

Payroll$1.6, 13%

Grants

$0.2, 2%

Expenses$0.0, 0%

Contracts$9.7, 83%

SiteTravel

$0.2, 2%Payroll

$1.6, 13%

Grants

$0.2, 2%

Expenses$0.0, 0%

Contracts$9.7, 83%

SiteTravel

$0.2, 2%

Payroll$1.6, 13%

Grants

$0.2, 2%

Expenses$0.0, 0%

Contracts$9.7, 83%

SiteTravel

$0.2, 2%Payroll

$1.6, 13%

Grants

$0.2, 2%

Expenses$0.0, 0%

Contracts

$9.7, 83%

Site Tra

vel

$0.2, 2%

Payroll

$1.6, 13%

Grants

$0.2, 2%

Expenses

$0.0, 0%

Contracts

$9.7, 83%

Site Tra

vel

$0.2, 2%

Payroll

$1.6, 13%

Grants

$0.2, 2%

Expenses

$0.0, 0%

Tronox Expenditures Breakout by Cost Category for February 2011 through December 2016

Total Settlement Spending ($21.8 Million) by Category$ in Millions

Contracts$16.8 Million, 77%

Site Travel$0.6 Million, 3%

Payroll$3.5 Million, 16%

Grants$0.9 Million, 4%

Expenses$0.0 Million, 0%

$21.8 Million, 2.2%Spent to Date

$988.4 MillionRemaining

For More Information (USEPA Contacts)

USEPA Region 6 Kevin ShadeTronox NAUM Coordinator USEPA, Region 6, 6SF-TR 1445 Ross AvenueDallas, TX 75202-2733p: (214) 665-2708f: (214) 665-6660shade.kevin@epa.gov

USEPA Region 9Chip PoalinelliTronox NAUM Coordinator USEPA, Region 9, SFD 6-2 75 Hawthorne StreetSa n Francisco, CA 94105 p: (415) 972-3390f: (415) 947-3526 poalinelli.edwin@epa.gov

Navajo Area Uranium MinesFebruary 2017