AJ11: TECHNICAL SUPPORT FOR CONTINUOUS MONITORING AND ASSESSMENT DOCUMENT TETRA TECH, INC. $179,979 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Feb 27, 2026 Feb 27, 2026 Feb 29, 2028
B516 - SUPPORT FOR THE 2025 NATIONAL COASTAL CONDITION ASSESSMENT (NCCA) FILLET TISSUE STUDY SAMPLE PREPARATION. TETRA TECH, INC. $600,872 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES May 28, 2025 Jun 1, 2025 May 31, 2026
B516 - FEDERAL WATER QUALITY STANDARDS AND RULEMAKING SUPPORT. TETRA TECH, INC. $267,686 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES May 19, 2025 Jun 1, 2025 May 31, 2026
AH12 - TASK ORDER - NCCA: EXTERNAL BENTHIC QA TETRA TECH, INC. $269,788 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AH12 NATURAL RESOURCES AND ENVIRONMENT R&D SERVICES; WATER RESOURCES; APPLIED RESEARCH May 5, 2025 May 5, 2025 Nov 2, 2026
AH12 - TECHNICAL SUPPORT FOR DISTRICT OF COLUMBIA BACTERIA TMDL MODELING AND DEVELOPMENT TETRA TECH, INC. $819,075 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AH12 NATURAL RESOURCES AND ENVIRONMENT R&D SERVICES; WATER RESOURCES; APPLIED RESEARCH Apr 23, 2025 Apr 23, 2025 Mar 31, 2028
B516 - TECHNICAL SUPPORT FOR DEVELOPMENT OF HUMAN HEALTH WATER QUALITY CRITERIA TETRA TECH, INC. $638,425 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES Mar 25, 2025 Mar 25, 2025 Mar 24, 2026
REPORTS, TOOLS, AND DATA VISUALIZATIONS FOR ASSESSING AQUATIC BIOLOGICAL ENDPOINTS TETRA TECH, INC. $89,872 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Feb 5, 2025 Feb 5, 2025 Nov 8, 2026
NEW TASK ORDER - "ASSESSMENT OF THE POTENTIAL FOR ENHANCED EFFICIENCY FERTILIZERS (EEFS) IN THE U.S. USING SWAT" TETRA TECH, INC. $87,882 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Jan 28, 2025 Jan 28, 2025 Jan 31, 2027
TASK ORDER AWARD - AUTOMATED DATA ANALYSIS AND ASSESSMENT METHODOLOGY TOOL FOR MT / WY AND REGION 8 TRIBES. TETRA TECH, INC. $186,011 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES Jan 15, 2025 Jan 15, 2025 Jan 14, 2026
NEW TASK ORDER - EXPANDING THE USE AND FUNCTIONALITY OF A CAUSAL ASSESSMENT SCREENING TOOL (CASTOOL) TETRA TECH, INC. $123,812 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Nov 21, 2024 Nov 21, 2024 May 31, 2026
NEW TASK ORDER UNDER CONTRACT 68HERC22D0026 TO BE PERFORMED ACCORDING TO THE ATTACHED PERFORMANCE WORK STATEMENT (PWS) TITLED, "PFAS SPATIAL AND RISK ANALYSES" TETRA TECH, INC. $155,000 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Nov 4, 2024 Nov 4, 2024 Oct 31, 2025
CONTRACT 68HERC20D0016, TO 68HERC24F0476 - WATER PERMITS DIVISION (WPD) NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) WATER QUALITY (WQ) TECHNICAL SUPPORT. TETRA TECH, INC. $100,891 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES Aug 26, 2024 Sep 20, 2024 Sep 19, 2025
THIS NEW TASK ORDER TITLED "COMPOST VALUE" INCLUDES THE FOLLOWING TASKS: TASK 1: ESTABLISH COMMUNICATION AND QAPP TASK 2: RESPOND TO EXTERNAL COMMENTS AND PREPARE FINAL REPORT AND FINAL SUMMARY REPORT TETRA TECH, INC. $93,020 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Aug 19, 2024 Aug 19, 2024 Apr 11, 2025
CONTRACT 68HERC20D0016, TASK ORDER 68HERC24F0461 - FEDERAL WATER QUALITY STANDARDS (WQS) AND RULEMAKING SUPPORT. TETRA TECH, INC. $544,573 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES Aug 6, 2024 Aug 6, 2024 May 31, 2025
CONTRACT 68HERC20D0016, TASK ORDER 68HERC24F0396 - TECHNICAL SUPPORT FOR EPA RULEMAKINGS, DETERMINATIONS AND OTHER WATER QUALITY STANDARDS (WQS) RELATED DECISIONS AND ACTIONS. TETRA TECH, INC. $208,724 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES Jun 20, 2024 Jun 20, 2024 Oct 31, 2025
CONTRACT 68HERC20D0016, TASK ORDER 68HERC24F0390 FOR MAINTENANCE OF WATER QUALITY STANDARDS INFORMATION AND TRACKING SYSTEM (WQSITS) DATA IN ACCORDANCE WITH ATTACHED PWS. TETRA TECH, INC. $235,852 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES Jun 20, 2024 Jun 20, 2024 Oct 31, 2025
CONTRACT 68HERC20D0016, TO 68HERC24F0315- 2025 NCCA PLANNING, SAMPLE COLLECTION, REPORTING RESULTS OF COMPLETED STUDIES TETRA TECH, INC. $1,069,996 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES Jun 3, 2024 Jun 3, 2024 Nov 30, 2025
NEW TASK ORDER ON CONTRACT 68HERC22D0026 FOR FRESHWATER EXPLORER DATA LAYERS. IN PARTICULAR, PFAS DATA LAYERS WILL BE CURATED, COMBINED, AND MADE ACCESSIBLE THROUGH THE FRESHWATER EXPLORER INCLUDING EXAMPLES TO ILLUSTRATE POTENTIAL APPLICATIONS. SEE TETRA TECH, INC. $43,962 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Apr 10, 2024 Apr 10, 2024 Aug 8, 2025
THE PRIMARY OBJECTIVE OF THE PROPOSED WORK IS TO BEGIN THE PROCESS OF DEFINING WHICH ALASKA PWSS ARE VULNERABLE TO CYANOBACTERIAL BLOOMS. TETRA TECH, INC. $92,936 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Mar 11, 2024 Mar 11, 2024 Apr 1, 2026
THE GOAL OF THIS TASK ORDER IS TO IDENTIFY WHICH PUBLIC WATER SYSTEMS (PWS) HAVE AND WHICH DO NOT HAVE THE ABILITY TO TREAT, CHANGE SOURCES, OR UTILIZE OTHER METHODS IF THERE IS A HIGH RISK FOR HABS OR OTHER CONTAMINANT SOURCES. TETRA TECH, INC. $373,277 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Jan 30, 2024 Jan 30, 2024 Jan 31, 2026
SUPPORT EPA REGION 8 WATERSHED SECTION TO MEET CLEAN WATER ACT REQUIREMENTS AND PRODUCTION OF TOTAL MAXIMUM DAILY LOADS. TETRA TECH, INC. $119,995 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES Jan 25, 2024 Jan 25, 2024 Jan 25, 2025
THE GOAL OF THIS RESEARCH PROJECT IS TO EVALUATE THE FEASIBILITY OF RECOVERY SUCH MINERALS AND ELEMENTS FROM AMD MATRICES IN THE AREA OF SHAMOKIN, PA FOR THE POTENTIAL OF ECONOMICALLY RECOVERING OF SUCH MATERIAL, WHICH WOULD BENEFIT EJ COMMUNITIES IN TETRA TECH, INC. $145,927 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Jan 24, 2024 Jan 24, 2024 Jan 31, 2026
CONTRACT 68HERC20D0016 - TASK ORDER TECHNICAL SUPPORT FOR MODELING EDUCATION. TETRA TECH, INC. $307,438 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services B516 SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES Jan 22, 2024 Jan 22, 2024 Nov 30, 2025
THE PURPOSE OF THIS PR IS TO AWARD A NEW ORDER FOR DRINKING WATER SYSTEM OPERATION INFORMATION UNDER CONTRACT 68HERC22D0026 THE REQUIRED DOCUMENTS ARE: A. INDEPENDENT GOVERNMENT ESTIMATE (IGE) B. SOW OR PWS (SERVICES) OR SPECIFICATIONS (PRODUC TETRA TECH, INC. $67,650 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Nov 15, 2023 Nov 15, 2023 Nov 30, 2025
THE PURPOSE OF THIS PR IS TO AWARD A NEW ORDER FOR LAND APPLICATION OF COMPOSTING PROJECTS UNDER CONTRACT 68HERC22D0026 THE REQUIRED DOCUMENTS ARE: A. INDEPENDENT GOVERNMENT ESTIMATE (IGE) B. SOW OR PWS (SERVICES) OR SPECIFICATIONS (PRODUCTS) TETRA TECH, INC. $25,831 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) AJ11 GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH Nov 1, 2023 Nov 1, 2023 Feb 21, 2025