ARROWHEAD CONTRACTING, LLC

MODIFICATION DORADO GROUNDWATER OU1 LTRA

NAVAJO - ABANDONED MINES RESPONSE AND CONSTRUCTION SERVICES MESA V. THE PURPOSE OF THIS TASK ORDER IS FOR THE CONTRACTOR TO PROVIDE CONTRACT SUPPORT FOR A TIME CRITICAL REMOVAL ACTION (TCRA) PER THE STATEMENT OF WORK.

THE PURPOSE OF THIS BILATERAL MODIFICATION IS TO ADD SCOPE AND FUNDING TO ARMCS, TO 1, CTS REMEDIATION, UNDER MOD P00010.

OPTION EXERCISE DORADO GROUNDWATER OU1 LTRA

THE ENVIRONMENTAL SERVICES AND OPERATIONS (ESO) CONTRACTS ARE MULTIPLE AWARD CONTRACTS. THE ESO CONTRACTS PROVIDE SERVICES TO SUPPORT EPA'S CLEANUP PROGRAMS, PRIMARILY THE SUPERFUND PROGRAM. THESE CONTRACTS REQUIRE PERSONNEL TO DELIVER THE FOLLO

THIS MODIFICATION CHANGES THE SCOPE AND ADDS FUNDING BASED ON RECENT FINDINGS ON-SITE IAW THE REVISED SOW, PROJ SCHEDULE, AND REVISED PRICING. THIS IS ARMCS, TO 1, CTS REMEDIATION, MOD P00008.

MODIFICATION DORADO GROUNDWATER OU1 LTRA

MODIFICATION DORADO GROUNDWATER OU1 LTRA

THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNNEEDED FUNDS.

THIS MODIFICATION CHANGES THE SCOPE BASED ON RECENT FINDINGS ON-SITE IAW THE REVISED SOW, PROJ SCHEDULE, AND PRICING.

68HE0118D0001/68HE0321F0011 P00008 LA CLARKE & SONS

DORADO GROUNDWATER CONTAMINATION SUPERFUND SITE INVESTIGATION - OPERABLE UNIT 1 (OU1) OF THE DORADO GROUNDWATER SUPERFUND SITE (SSID A25N) RA/LTRA TASK ORDER UNDER THE ESO SUITE OF CONTRACTS. THIS SITE IS BIL FUNDED. SSC TASK 1 NOTE: THIS PR IS

MODIFICATION TO CHANGE OR ADD THE FOLLOWING. 1. SEPTIC TANK INSTALLATION 2.UPDATE TASK ORDER STATEMENT OF WORK 3. USE OPTION YEAR 2 WAGES. THE VENDOR SUBMITTED PRICING USING OPTION YEAR 1. 4. UNIT INCREASES ON VARIOUS TASK EXPLAINED ON SF30 MOD

68HE0118D0001/68HE0321F0011 P00004 LA CLARKE & SONS.

CONTRACT THROUGH AMRCS FOR RESPONSE ACTIVITIES TO ADDRESS CONTAMINATED SOIL REMOVAL AND DISPOSAL AT THE COVE TRANSFER STATION (CTS) COMPLEX

68HE0118D0001/68HE0321F0011 P00003 LA CLARKE & SONS.