| JACOBS ENGINEERING GROUP INC.SFGLAES: BUBBLY CREEK PRE-DESIGN INVESTIGATION | 562910 | IL | $848,737 | Aug 31, 202711 mo 4 offers | |
| TETRA TECH, INC.R7 START VI: CONTRACT MANAGEMENT TO OVERALL START VI CONTRACT | 541620 | KS | $845,336 | Jun 30, 202821 mo | |
| KGSNE JV II LLCTASK ORDER# 68HE0123F0001 FOR PIPELINE SUPPORT UNDER CONTRACT# 68HE0122D0001. | 562910 | MA | $844,778 | Sep 15, 202712 mo | |
| EASTERN RESEARCH GROUP INCID/IQ CONTRACT: SUPPORT FOR CHEMICAL SCREENING, REVIEW, & EVALUATION OF NEW, EXISTING, & SAFER CHOICE CHEMICAL SUBSTANCES TASK ORDER: POLLUTION PREVENTION (P2) PROGRAM MISSION SUPPORT | 541620 | MA | $829,467 | Sep 16, 202712 mo 1 offer | |
| HELIOTECHSANFORD DRY CLEANERS SITE LOCATED IN SEMINOLE COUNTY, FL. LONG-TERM REMEDIAL ACTION (LTRA) ACTIVITIES. | 562910 | FL | $819,819 | Jul 31, 202822 mo 1 offer | |
| EASTERN RESEARCH GROUP INCAJ15 METROLOGY LABORATORY CALIBRATION SUPPORT | 541715 | NC | $819,557 | Aug 20, 20260 mo | |
| WESTON SOLUTIONS INCSTART V TASK ORDER TITLE: REGION 6 START V OIL POLLUTION ACT (OPA) NON-SITE | 541620 | PA | $810,361 | Aug 7, 202823 mo | |
| EASTERN RESEARCH GROUP INCTASK ORDER FOR PROGRAM SUPPORT AND STAKEHOLDER RESPONSE SUPPORT UNDER IDIQ 68HERC24D0009 | 541620 | MA | $803,426 | Oct 14, 20261 mo | |
| WESTON-TECHLAW JV LLCNEW TASK ORDER: THIS ACTION FUNDS NEW WORK ON REAC CONTRACT # 68HE0321D0001; SITE NAME: BAYOU BONFOUCA; SITE ID: 0638 TOCOR/PO: SELLA BURCHETTE, ERT TOCOR FOR SITE: TOM KADY; TO#: 68HE0322F0062 | 541620 | LA | $799,545 | Sep 30, 20260 mo | |
| EASTERN RESEARCH GROUP INCSUPPORT FOR "MOBILE SOURCE EMISSION INVENTORY MODEL AND EMISSIONS ACTIVITY DATA TECHNICAL SUPPORT" | 541620 | MA | $789,628 | Sep 28, 202712 mo | |
| TETRA TECH, INC.THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) EL PASO NATURAL GAS (EPNG) UNDER RAES 2 CONTRACT 68HE0923D0002. | 541620 | AZ | $789,474 | Aug 9, 202711 mo | |
| HDR APTIM LLCDES CINNAMINSON GROUNDWATER CONTAMINATION SUPERFUND SITE OU3 REMEDIAL DESIGN /REMEDIAL ACTION (RDRA) OVERSIGHT (SSID 02F7) | 562910 | NJ | $788,129 | Oct 31, 202713 mo 1 offer | |
| THE CADMUS GROUP LLCF115 - TECHNICAL AND ADMINISTRATIVE SUPPORT FOR THE UNDERGROUND INJECTION CONTROL (UIC) CLASS VI PROGRAM | 541620 | MA | $785,994 | Sep 30, 20260 mo | |
| EASTERN RESEARCH GROUP INCCALL ORDER PROJECT DESCRIPTION: DEVELOPMENT OF OIL AND GAS AND MOBILE SOURCE EMISSIONS TOCOR: JANICE GODFREY ALTERNATE TOCOR: ALISON EYTH PROJECT OFFICER/INVOICE APPROVER: BRANDON HAWKINS CLCOR: ELEANOR MARUSIAK ALT. CLCOR: LAURA ZOELLNER | 541620 | MA | $780,930 | Oct 14, 20261 mo | |
| ENVIRONMENTAL RESTORATION LLCBIG JOHN SALVAGE (0371) OU00 $500,000.00 CONTRACT: ENVIRONMENTAL RESTORATION, L.L.C. POC: ERIK ARMISTEAD 267-889-8119 | 562910 | MO | $774,119 | Feb 1, 20275 mo | |
| OCH JVTASK ORDER AWARD | 562910 | WI | $768,974 | Jul 31, 202822 mo 3 offers | |
| HYDROGEOLOGIC, INC.036E SHARON STEEL/FAIRMONT COKE - OVERSIGHT SUPPORT FOR PRP RD AND PRP RA | 562910 | PA | $766,611 | Aug 31, 202711 mo 1 offer | |
| BATTELLE MEMORIAL INSTITUTENEW STREAMS IV TASK ORDER TITLED COMMUNITY WATER QUALITY TESTING FOR LEAD SERVICE LINE SAMPLING. | 541715 | OH | $766,442 | Oct 9, 20261 mo | |
| TETRA TECH, INC.THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE TO USEPA FOR TECHNICAL ASSISTANCE TO THE CONTAMINATED STRUCTURES PROGRAM UNDER THE RAES 2 CONTRACT. | 541620 | AZ | $764,181 | Sep 30, 20260 mo | |
| PB&A/CSS JV, LLC.ID/IQ CONTRACT: TECHNICAL SUPPORT FOR THE ASSESSMENT OF PESTICIDE REGULATION ACTIVITIES TASK ORDER: ANTIMICROBIAL HUMAN HEALTH TECHNICAL SUPPORT | 541620 | TX | $759,740 | Sep 30, 202712 mo | |
| OCH JVTASK ORDER AWARD | 562910 | IL | $756,437 | Jul 31, 202822 mo 1 offer | |
| BLUESTONE ENVIRONMENTAL GROUP, INC.FISCHER & PORTER (0308) OU01 $678,099.83 CONTRACT: REMEDIAL TECHNICAL ASSISTANCE CONTRACT (RTAC), POC: JOSH CROOKS 215-814-2386 | 541620 | PA | $750,537 | Sep 21, 20260 mo | |
| GREAT LAKES COMMISSIONMAINTAINING AND UPDATING THE REGIONAL CONTINGENCY PLAN/AREA CONTINGENCY PLAN AND REGION 5 INLAND SENSITIVITY ATLAS FOR THE STATES OF OHIO, MICHIGAN AND INDIANA. | 541370 | MI | $750,000 | Sep 30, 20260 mo 1 offer | |
| UPPER MISSISSIPPI RIVER BASIN ASSOCIATIONMAINTAINING AND UPDATING THE REGIONAL CONTINGENCY PLAN/AREA CONTINGENCY PLAN AND INLAND SENSITIVITY ATLAS FOR WI/IL/MN | 541370 | MN | $750,000 | Sep 30, 20260 mo 1 offer | |
| TETRA TECH, INC.R7 START VI: TECHNICAL ASSISTANCE SUPPORT TO EPA TO SUPPORT EMERGENCY RESPONSES | 541620 | KS | $740,507 | Feb 25, 20275 mo | |
| APTIM HDR, LLCCONTRACT: 68HERH19D0005. RES: NYANZA CHEMICAL WASTE DUMP. RA006 FUNDING AND AWARD. RAF RES NYANZA CHEMICAL WASTE DUMP NEW TASK ORDER | 562910 | MA | $728,783 | Sep 23, 20260 mo 2 offers | |
| TUKUH TECHNOLOGIES, LLCBASE YEAR FUNDING GIS BPA FOR ENVIRONMENTAL INFORMATION MANAGEMENT PORTALS FOR THE PACIFIC ISLANDS EIMP | 541330 | CA | $724,150 | Sep 30, 20260 mo | |
| EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBCNEW TASK ORDER (TO) TO CONDUCT SAMPLING ACTIVITIES AND TO OPERATE AND MAINTAIN RESIDENTIAL POINT-OF-ENTRY TREATMENT SYSTEMS (POETS) AND DRINKING WATER POINT-OF-USE TREATMENTS SYSTEMS (POUTS) AT THE HIDDEN LANE LANDFILL SUPERFUND SITE LOCATED IN STERL | 562910 | VA | $720,855 | Sep 8, 202712 mo 1 offer | |
| CASTRO & COMPANY, LLCWORKING CAPITAL FUND (WCF) AUDIT SERVICES | 541219 | VA | $718,125 | Sep 30, 20260 mo 2 offers | |
| AECOM TECHNICAL SERVICES, INC.DURHAM MEADOWS MANUFACTURING SUPERFUND SITE DES REMEDIAL ACTION (RA) OVERSIGHT SUPPORT TASK ORDER (TO). | 562910 | CT | $717,195 | Dec 31, 20263 mo 1 offer | |
| APTIM FEDERAL SERVICES, LLCCONTRACT #68HERC24D0003, TO #68HERC24F0335: 'TECHNICAL SUPPORT FOR EXPERIMENTAL STREAM FACILITY (ESF) AND EAST FORK WATERSHED STUDY (EFWS)' | 541715 | OH | $710,566 | May 31, 20278 mo | |
| HAWKINS DELAFIELD & WOOD LLPR418 - WIFIA MASTER LEGAL TARGETED ASSISTANCE I | 541110 | NY | $706,835 | Oct 31, 202713 mo 1 offer | |
| ALEUT TECHNICAL SERVICES, LLCCOMMUNITY INVOLVEMENT TASK ORDER UNDER THE REGION 6 ENFORCEMENT SUPPORT SERVICES (ESS) CONTRACT | 541620 | TX | $706,560 | Sep 17, 20260 mo | |
| HYDROGEOLOGIC, INC.INITIATION OF DOVER LANDFILL OVERSIGHT TASK ORDER UNDER ESO CONTRACT | 562910 | NH | $702,555 | Jul 31, 202710 mo 6 offers | |
| OCH JVTASK ORDER | 562910 | OH | $699,995 | Jul 31, 202822 mo 1 offer | |
| THE CADMUS GROUP LLCF115 - REDUCTION OF LEAD IN DRINKING WATER IN SCHOOLS AND CHILD CARE FACILITIES AND ASSOCIATED PROGRAM ACTIVITIES | 541620 | MA | $699,663 | Sep 30, 20260 mo | |
| GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC.BPA CALL ORDER TITLE: OIL PROGRAM GENERAL TECHNICAL SUPPORT SERVICES (OEM) THE PURPOSE OF THIS ORDER IS TO TO PROVIDE GENERAL TECHNICAL SUPPORT OF DEVELOPMENT OF THE OIL PROGRAM'S OIL POLLUTION PREVENTION AND PREPAREDNESS REGULATIONS (40 CFR P | 541613 | VA | $694,439 | Sep 29, 20260 mo 5 offers | |
| WESTON SOLUTIONS INCR10 START V: PROGRAM MANAGEMENT SERVICES #2 | 541620 | WA | $692,653 | Aug 5, 202711 mo | |
| WESTON SOLUTIONS INCR10 START V: RESPONDER READINESS #2 | 541620 | WA | $686,968 | Aug 5, 202711 mo | |
| TETRA TECH, INC.THE PURPOSE OF THIS TASK ORDER IS ESTABLISH A TASK ORDER 27 TO PROVIDE TECHNICAL SUPPORT TO REGION 6 FOR OVERSIGHT OF AN ONGOING PRP RI/FS AND GOVERNMENT RI/FS AT THE HOMESTAKE MINING COMPANY UNDER THE RAES 2 CONTRACT. | 541620 | NM | $685,955 | May 1, 20278 mo | |
| JACOBS ENGINEERING GROUP INC.PARSONS CASKET HARDWARE CO. SUPERFUND SITE (054E): REGION 5, SUPERFUND & GREAT LAKES ARCHITECTURE & ENGINEERING SERVICES (SFGLAES), SEMD, JACOBS (68HE0523D0003), PDI TASK ORDER | 562910 | IL | $677,114 | Apr 30, 202819 mo 1 offer | |
| TETRA TECH, INC.TAR LAKE REMEDIAL DESIGN (DES - JOFOC) | 562910 | MI | $661,066 | Sep 29, 20260 mo 1 offer | |
| EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBCRECOMMENDATION OF AWARD TO EA ENGINEERING CONTRACT 68HE01180D0004, RFP 68HE0120Q0017 RCRA TECHNICAL ASSISTANCE TASK ORDER INITIAL ORDER FOR 6 MONTHS, TASKS 1 AND 7.3 | 562910 | MA | $660,815 | Jul 31, 202710 mo 2 offers | |
| FLUKE ELECTRONICS CORPFLUKE EQUIPMENT CALIBRATION AND SOFTWARE MAINTENANCE SUPPORT AT NVFEL. THE CONTRACTOR SHALL FURNISH ALL PARTS, LABOR, SUPERVISION, AND EQUIPMENT NECESSARY TO PROVIDE CALIBRATION SUPPORT OF PURCHASED AND EXISTING FLUKE EQUIPMENT. | 541380 | WA | $653,822 | Nov 30, 20262 mo 1 offer | |
| AGILE DECISION SCIENCES, LLCINFORMATION MANAGEMENT CENTER SERVICES V, R7 SUPERFUND AND EMERGENCY MANAGEMENT DIVISION RECORDS AND INFORMATION MANAGEMENT SUPPORT. | 541990 | DC | $652,413 | Apr 30, 202819 mo 2 offers | |
| TETRA TECH, INC.R7 START VI: PLANNING AND PREPAREDNESS/REGIONAL RESPONSE TEAM ACTIVITIES | 541620 | KS | $642,939 | Jun 30, 202821 mo | |
| WINGSWEPT, LLCINSPECTOR GENERAL (IG) INVESTIGATIVE CASE MANAGEMENT SOFTWARE SYSTEM AND SUPPORT SERVICES | 511210 | NC | $641,286 | Sep 27, 20260 mo 2 offers | |
| SOUTHWEST RESEARCH INSTITUTEPSC- R425 NEW TASK ORDER "PARTICULATE EMISSIONS MASS INSTRUMENT CALIBRATION" COST-PLUS FIXED-FEE (CPFF) COMPLETION TYPE, 24-MONTH PERIOD OF PERFORMANCE | 541330 | TX | $640,534 | Aug 28, 202711 mo | |
| AECOM TECHNICAL SERVICES, INC.THIS ACTION INITIATES A NEW TASK ORDER UNDER THE REMEDIAL ACTION FRAMEWORK (RAF)FOR DESIGN AND ENVIRONMENTAL SERVICES (DES)FOR THE BLACKBURN&UNION | 562910 | MA | $632,993 | Sep 30, 20260 mo 2 offers | |
| EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBCHIDDEN LANE LANDFILL SUPERFUND SITE | 562910 | VA | $631,638 | Oct 25, 202713 mo 1 offer | |