| | ESTCP PROJECT NUMBER MR25-8926
TITLE: DEMONSTRATION OF THE ULTRATEMA-4 AT THE SAN DIEGO UNDERWATER REAL-WORLD MUNITIONS RESPONSE SITE | TETRA TECH EC, INC. | $1,618,829 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | AJ11GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; BASIC RESEARCH | Dec 9, 2025 | Dec 9, 2025 | Dec 8, 2029 |
| | SAN PEDRO RESTORATION ENVIRONMENTAL ASSESSMENT | TETRA TECH EC, INC. | $369,235 | BUREAU OF LAND MANAGEMENT | BUREAU OF LAND MANAGEMENT | — | 541620Environmental Consulting Services | F999OTHER ENVIRONMENTAL SERVICES | Sep 8, 2023 | Sep 8, 2023 | Sep 24, 2026 |
| | NEPA - "UNIT 2" DEMOLITION - SECTION 106 CASE STUDY AND MITIGATION | TETRA TECH EC, INC. | $186,650 | BUREAU OF LAND MANAGEMENT | BUREAU OF LAND MANAGEMENT | — | 541620Environmental Consulting Services | B510SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS | Sep 23, 2022 | Sep 23, 2022 | May 28, 2023 |
| | SEAGRASS HABITAT RESTORATION, BISC | TETRA TECH EC, INC. | $319,910 | NATIONAL PARK SERVICE | NATIONAL PARK SERVICE | — | 541620Environmental Consulting Services | F999OTHER ENVIRONMENTAL SERVICES | Sep 9, 2022 | Sep 9, 2022 | Jun 30, 2025 |
| | THE PROJECT WILL REQUIRE OVERSIGHT TO THE CONTRACTOR FIELD WORK AND INVOICING OVER THE 6 MONTH PERFORMANCE PERIOD. | TETRA TECH EC, INC. | $157,695 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | B510SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS | Aug 24, 2022 | Aug 24, 2022 | Dec 20, 2023 |
| | VALEFY22_PLANNING NEPA CALL ON NOC BPA | TETRA TECH EC, INC. | $220,800 | BUREAU OF LAND MANAGEMENT | BUREAU OF LAND MANAGEMENT | — | 541620Environmental Consulting Services | B510SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS | Jul 27, 2022 | Jul 22, 2022 | Aug 1, 2023 |
| | ENVIRONMENTAL MANAGEMENT SYSTEMS (EMS) ENVIRONMENTAL | TETRA TECH EC, INC. | $26,250 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 541620Environmental Consulting Services | R499SUPPORT- PROFESSIONAL: OTHER | Aug 31, 2021 | Aug 31, 2021 | Aug 30, 2025 |
| | LOGICAL FOLLOW-ON TO PRIOR CONTRACTED EFFORTS FROM 2018-2020. | TETRA TECH EC, INC. | $235,211 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | F110ENVIRON SYS PROTECT- DEVELOPMENT OF ENVIRON IMPACT STMTS/ASSESSMENTS, TECH ANALYSIS/ENVIRON AUDITS | Jul 30, 2021 | Jul 30, 2021 | Oct 17, 2022 |
| | GEOGRAPHIC INFORMATION SYSTEMS AND REMOTE SENSING SERVICES FOR THE HABITAT DISTURBANCE & MAPPING PROJECT | TETRA TECH EC, INC. | $649,541 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | R408SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT | Jun 11, 2021 | Jun 11, 2021 | Mar 21, 2024 |
| | GEOGRAPHIC INFORMATION SYSTEMS AND REMOTE SENSING SERVICES | TETRA TECH EC, INC. | $27,296 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | R408SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT | Apr 1, 2021 | Apr 1, 2021 | Jun 30, 2021 |
| | HALE 309163 PRE-NEPA PLANNING | TETRA TECH EC, INC. | $312,897 | NATIONAL PARK SERVICE | NATIONAL PARK SERVICE | — | 541620Environmental Consulting Services | B510SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS | Sep 22, 2020 | Oct 1, 2020 | Mar 31, 2023 |
| | EXISTING VEG MAP PROGRAM GIS AND PROGRAMMING. | TETRA TECH EC, INC. | $81,888 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | D315 | May 6, 2020 | May 6, 2020 | Dec 31, 2021 |
| | REMOTE SENSING/GIS ANALYST SUPPORT THE HABITAT AND DISTURBANCE MAPPING PROJECT. | TETRA TECH EC, INC. | $193,379 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | D315 | Mar 26, 2020 | Mar 26, 2020 | Feb 28, 2022 |
| | THIRD PARTY BLIND SEEDING AT FT. GLENN, UMNAK ISLAND ALASKA | TETRA TECH EC, INC. | $115,633 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 562910Remediation Services | F999OTHER ENVIRONMENTAL SERVICES | Sep 23, 2019 | Sep 23, 2019 | Sep 23, 2020 |
| | PURCHASE OF CONTRACT TO PROVIDE ANCILLARY SERVICES FOR THE ALASKA ROADLESS RULEMAKING PROJECT TO MEET A COMPRESSED TIMELINE. | TETRA TECH EC, INC. | $92,878 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | F115ENVIRONMENTAL SYSTEMS PROTECTION- ENVIRONMENTAL CONSULTING AND LEGAL SUPPORT | Sep 6, 2019 | Sep 6, 2019 | Jun 15, 2020 |
| | CHRI 217021 CORAL RELOCATION AND MONITORING SERVICES | TETRA TECH EC, INC. | $624,917 | NATIONAL PARK SERVICE | NATIONAL PARK SERVICE | — | 541620Environmental Consulting Services | F099NATURAL RESOURCES/CONSERVATION- OTHER | Aug 26, 2019 | Aug 26, 2019 | Mar 31, 2027 |
| | IGF::CT::IGF EXISTING VEGETATION MAPPING PROGRAM AND GIS PROGRAMMING PROJECT. | TETRA TECH EC, INC. | $127,200 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | D315 | May 16, 2019 | May 16, 2019 | Feb 28, 2022 |
| | THE ALASKA ROADLESS NEPA (EIS) CONTRACT | TETRA TECH EC, INC. | $99,479 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | F115ENVIRONMENTAL SYSTEMS PROTECTION- ENVIRONMENTAL CONSULTING AND LEGAL SUPPORT | Nov 15, 2018 | Nov 15, 2018 | Jun 5, 2020 |
| | PROGRAMMATIC EIS FOR THE RULEMAKING | TETRA TECH EC, INC. | $1,383,597 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | F115ENVIRONMENTAL SYSTEMS PROTECTION- ENVIRONMENTAL CONSULTING AND LEGAL SUPPORT | Oct 15, 2018 | Oct 15, 2018 | Jul 1, 2021 |
| | IGF::OT::IGF THIRD PARTY BLIND VALIDATION SEEDING AT CAMP FANNIN, FUDS MMRP REMEDIATION | TETRA TECH EC, INC. | $260,268 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 562910Remediation Services | F999OTHER ENVIRONMENTAL SERVICES | Jun 28, 2018 | Jun 28, 2018 | Jun 28, 2021 |
| | IGF::CT::IGF EXISTING VEGETATION MAPPING PROGRAM AND GIS PROGRAMMING PROJECT | TETRA TECH EC, INC. | $113,203 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | D315 | May 3, 2018 | May 3, 2018 | Nov 12, 2019 |
| | IGF::CT::IGF HABITAT&DISTURBANCE MAPPING PROJECT - EXISTING MAPPING PROGRAM | TETRA TECH EC, INC. | $182,097 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | D315 | Apr 24, 2018 | Apr 24, 2018 | May 27, 2020 |
| | IGF::CT::IGF DATA ANALYSIS FOR DECISION SUPPORT PROJECT | TETRA TECH EC, INC. | $124,520 | FOREST SERVICE | FOREST SERVICE | — | 541620Environmental Consulting Services | D315 | Apr 18, 2018 | Apr 18, 2018 | Aug 9, 2019 |
| | IGF::OT::IGF MINIMUM GUARANTEE TASK ORDER IN SUPPORT OF AGC MATOC FOR SPD AND SWD | TETRA TECH EC, INC. | $0 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 562910Remediation Services | F999OTHER ENVIRONMENTAL SERVICES | Apr 13, 2018 | Apr 13, 2018 | Apr 11, 2023 |
| | IGF::OT::IGF BOSH 2017 PLANT SURVEY | TETRA TECH EC, INC. | $187,938 | BUREAU OF LAND MANAGEMENT | BUREAU OF LAND MANAGEMENT | — | 541620Environmental Consulting Services | R499SUPPORT- PROFESSIONAL: OTHER | Sep 1, 2017 | Sep 1, 2017 | Aug 17, 2018 |