PWT-BAY WEST JOINT VENTURE LLC

R7 ESO: RA OVERSIGHT SUPPORT AT SUPERFUND SITES IN THE TRI-STATE LEAD/ZINC DISTRICT - MOD P00014: PARTIAL DEOBLIGATION

THE PURPOSE OF MODIFICATION 6 IS TO MAKE DE-OBLIGATE FUNDS IN THE AMOUNT OF $25,000.00 DUE TO MEETING THE MINIMUM GUARANTEE ON THE TASK ORDER.

R7 ESO: SOUTHEAST MISSOURI (SEMO) OVERSIGHT SUPPORT II MODIFICATION P00002 - THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE OPTION PERIOD 2 AND TO ADD FUNDING IN THE AMOUNT OF $1,029,344.35.

R7 ESO: RA OVERSIGHT SUPPORT AT SUPERFUND SITES IN THE TRI-STATE LEAD/ZINC DISTRICT - MOD P00013 - EXTEND POP 6 MONTHS AND FULLY FUND EXTENSION.

DEOBLIGATE REMAINING FUNDS IN THE AMOUNT OF $63,949.71 CLOSE OUT THE TASK ORDER.

R7 ESO: TRI-STATE OVERSIGHT AND OVERSIGHT SUPPORT RA OVERSIGHT SUPPORT AT SUPERFUND SITES IN THE TRI-STATE LEAD/ZINC DISTRICT - MOD P00012 - DEOBLIGATION AND CAPACITY SHIFTS.

R7 ESO: SOUTHEAST MISSOURI (SEMO) OVERSIGHT SUPPORT II

R7 ESO: TRI-STATE OVERSIGHT AND OVERSIGHT SUPPORT RA OVERSIGHT SUPPORT AT SUPERFUND SITES IN THE TRI-STATE LEAD/ZINC DISTRICT - MOD P00010 - EXERCISE OPTION YR III AND ISSUED CHANGE ORDER