# Tetra Tech, Inc.

Canonical: https://abierto.us/vendors/tetra-tech-inc-x38laab5hb64

- UEI: X38LAAB5HB64
- CAGE: 1P0H7
- Location: Fairfax, VA
- Awards in window: 76 (132 transactions), $2,117,256 obligated, January 2, 2025 to September 4, 2026

## Awarding agencies

- Environmental Protection Agency: 72 awards, $2,082,581
- Department of the Army: 2 awards, $24,676
- National Oceanic and Atmospheric Administration: 1 awards, $10,000
- Centers for Disease Control and Prevention: 1 awards, $0

## Industries

- 541620 Environmental Consulting Services: $1,194,931
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology): $920,347
- 541330 Engineering Services: $24,676
- 541370 Surveying and Mapping (except Geophysical) Services: $10,000
- 541690 Other Scientific and Technical Consulting Services: $0
- 541611 Administrative Management and General Management Consulting Services: -$32,697

## Competition

- Full and Open Competition: 76 awards

## Solicitations won

- NOS OCM COASTAL GEOSPATIAL SERVICES (1305M226D0035), $49,000,000. https://abierto.us/opportunities/1305m226d0035
- Ecological and Human Health Risks of Contaminants (68HERC25R0243), $25,000,000. https://abierto.us/opportunities/68herc25r0243
- Continuous Monitoring and Assessment Document (68HERF26R0016), $179,979. https://abierto.us/opportunities/68herf26r0016

## Largest awards

- 68HERC25F0230 (delivery order): $570,139, Cincinnati Acquisition Div (Cad). B516 - Support for the 2025 National Coastal Condition Assessment (Ncca) Fillet Tissue Study Sample Preparation.. https://www.usaspending.gov/award/CONT_AWD_68HERC25F0230_6800_68HERC20D0016_6800/
- 68HERC25F0211 (delivery order): $381,320, Cincinnati Acquisition Div (Cad). AH12 - Technical Support for District of Columbia Bacteria TMDL Modeling and Development. https://www.usaspending.gov/award/CONT_AWD_68HERC25F0211_6800_68HERC22D0026_6800/
- 68HERC25F0203 (delivery order): $267,686, Cincinnati Acquisition Div (Cad). B516 - Federal Water Quality Standards and Rulemaking Support.. https://www.usaspending.gov/award/CONT_AWD_68HERC25F0203_6800_68HERC20D0016_6800/
- 68HERW26F0182 (delivery order): $184,493, Water, Tribal & Science Division. R499 - Technical Support for Water Quality Standards (Wqs) Rulemakings, Determinations, and Actions.. https://www.usaspending.gov/award/CONT_AWD_68HERW26F0182_6800_68HERW26D0007_6800/
- 68HERF26F0046 (delivery order): $179,979, Construction, Finance, Administrative & Ia Division. AJ11: Technical Support for Continuous Monitoring and Assessment Document. https://www.usaspending.gov/award/CONT_AWD_68HERF26F0046_6800_68HERC22D0026_6800/
- 68HERC25F0224 (delivery order): $156,628, Cincinnati Acquisition Div (Cad). AH12 - Task Order - Ncca: External Benthic Qa. https://www.usaspending.gov/award/CONT_AWD_68HERC25F0224_6800_68HERC22D0026_6800/
- 68HERW26F0195 (delivery order): $147,334, Water, Tribal & Science Division. National Pollutant Discharge Elimination System Water Quality Technical Support.. https://www.usaspending.gov/award/CONT_AWD_68HERW26F0195_6800_68HERW26D0007_6800/
- 68HERC25F0030 (delivery order): $146,099, Cincinnati Acquisition Div (Cad). Task Order Award - Automated Data Analysis and Assessment Methodology Tool for MT / Wy and Region 8 Tribes.. https://www.usaspending.gov/award/CONT_AWD_68HERC25F0030_6800_68HERC20D0016_6800/
- 68HERW26F0221 (delivery order): $125,000, Water, Tribal & Science Division. Support for the 2025 National Coastal Condition Assessment (Ncca) Fillet Tissue Study Sample Shipments, Data Quality Review, and Reporting Results.. https://www.usaspending.gov/award/CONT_AWD_68HERW26F0221_6800_68HERW26D0007_6800/
- 68HERW26D0007: $100,000, Water, Tribal & Science Division. R499-Ecological and Human Health Risks of Contaminants in Water, Fish and Sediments and of Microbial Pathogens in Surface Waters. https://www.usaspending.gov/award/CONT_IDV_68HERW26D0007_6800/
- 68HERC25F0159 (delivery order): $89,872, Cincinnati Acquisition Div (Cad). Reports, Tools, and Data Visualizations for Assessing Aquatic Biological Endpoints. https://www.usaspending.gov/award/CONT_AWD_68HERC25F0159_6800_68HERC22D0026_6800/
- 68HERC25F0183 (delivery order): $72,451, Cincinnati Acquisition Div (Cad). B516 - Technical Support for Development of Human Health Water Quality Criteria. https://www.usaspending.gov/award/CONT_AWD_68HERC25F0183_6800_68HERC20D0016_6800/
- 68HERC25F0156 (delivery order): $67,897, Cincinnati Acquisition Div (Cad). New Task Order - "assessment of the Potential for Enhanced Efficiency Fertilizers (Eefs) in the U.S. Using Swat". https://www.usaspending.gov/award/CONT_AWD_68HERC25F0156_6800_68HERC22D0026_6800/
- 68HERC23F0371 (delivery order): $50,040, Cincinnati Acquisition Div (Cad). AJ11 - Technical Support for EPA Ords Ecological and Global Change Assessment Research: External Benthic Qa and Proficiency Test QC Support. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0371_6800_68HERC22D0026_6800/
- 68HERC24F0390 (delivery order): $40,968, Cincinnati Acquisition Div (Cad). Contract 68herc20d0016, Task Order 68herc24f0390 for Maintenance of Water Quality Standards Information and Tracking System (Wqsits) Data in Accordance with Attached Pws. Mod P00003 Adds Incremental Funding.. https://www.usaspending.gov/award/CONT_AWD_68HERC24F0390_6800_68HERC20D0016_6800/
- 68HERC24F0115 (delivery order): $38,966, Cincinnati Acquisition Div (Cad). Contract 68herc20d0016 - Task Order Technical Support for Modeling Education. Mod P00003 - Termination for Convenience. https://www.usaspending.gov/award/CONT_AWD_68HERC24F0115_6800_68HERC20D0016_6800/
- 68HERC24F0476 (delivery order): $24,780, Cincinnati Acquisition Div (Cad). Contract 68herc20d0016, to 68herc24f0476 - Water Permits Division (Wpd) National Pollutant Discharge Elimination System (Npdes) Water Quality (Wq) Technical Support. Mod P00003 Adds Incremental Funding.. https://www.usaspending.gov/award/CONT_AWD_68HERC24F0476_6800_68HERC20D0016_6800/
- W9127820F0461 (delivery order): $24,676, W074 Endist Mobile. The Purpose of This Modification Is to Extend the Period of Performance to 15 Jun 2025.. https://www.usaspending.gov/award/CONT_AWD_W9127820F0461_9700_W9127819D0031_9700/
- 68HERC23F0449 (delivery order): $10,805, Cincinnati Acquisition Div (Cad). Support for Further Development of the Metals Aquatic Life Criteria and Chemistry Map (Metalicc-Map). Mod P00004 Adds Incremental Funding.. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0449_6800_68HERC20D0016_6800/
- 1305M226D0035: $10,000, Department of Commerce NOAA. The Contractor Shall Provide Coastal Geospatial Services, Approved Via OR-25-01298, in Accordance with the Statement of Work in Support of the Office for Coastal Management.. https://www.usaspending.gov/award/CONT_IDV_1305M226D0035_1330/
- 68HERC22F0367 (delivery order): $4,330, Water, Tribal & Science Division. R499 - Nutrient-Scientific Technical Exchange Partnership Support (N-Steps). https://www.usaspending.gov/award/CONT_AWD_68HERC22F0367_6800_EPC17046_6800/
- 0001 (delivery order): $0, Cincinnati Acquisition Div (Cad). R499 General TMDL Support for Alaska, Idaho, Oregon and Washington Waters. https://www.usaspending.gov/award/CONT_AWD_0001_6800_EPC17046_6800/
- 68HE0C18F0783 (delivery order): $0, Cincinnati Acquisition Div (Cad). R499 Technical Support for Nonpoint Source Communications. https://www.usaspending.gov/award/CONT_AWD_68HE0C18F0783_6800_EPC17046_6800/
- 68HERC19F0037 (delivery order): $0, Cincinnati Acquisition Div (Cad). R499 Technical Support for Nonpoint Source Load Reduction Models. https://www.usaspending.gov/award/CONT_AWD_68HERC19F0037_6800_EPC17046_6800/
- 68HERC22F0400 (delivery order): $0, Cincinnati Acquisition Div (Cad). Technical Assistance to MT and Wy to Develop Assessment Methodologies, Construct Data Download and Analytical Tools, and Complete Up to 4 Individual Waterbodies. Mod P00003 - Admin Mod to Correct End Date.. https://www.usaspending.gov/award/CONT_AWD_68HERC22F0400_6800_68HERC20D0016_6800/
- 68HERC22F0415 (delivery order): $0, Cincinnati Acquisition Div (Cad). B516 - Contract-68herc20d0016, to 68herc22f0415 Project-Support for Further Development of the National Water Chemistry Database and Development of Gis Map Applications.. https://www.usaspending.gov/award/CONT_AWD_68HERC22F0415_6800_68HERC20D0016_6800/
- 68HERC23F0130 (delivery order): $0, Cincinnati Acquisition Div (Cad). The Purpose of This to Is to Provide Support to EPA Region 3 by (1) Producing Impacts of Future Climate and Hurricane Storm Surge on 100-Year Flood Induced Sediment and Contaminant Transport, and (2) Validating Coupled Hec-Hms, HEC-RAS 2D and Wasp Wi. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0130_6800_68HERC22D0026_6800/
- 68HERC23F0158 (delivery order): $0, Cincinnati Acquisition Div (Cad). AJ11 - Chesapeake Solutions-Driven Research (Sdr) Coastal Resiliency Using Blue Carbon Products. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0158_6800_68HERC22D0026_6800/
- 68HERC23F0215 (delivery order): $0, Cincinnati Acquisition Div (Cad). R499 - Technical Support for EPA Ords Ecological and Global Change Assessment Research: Alpine Lake Review. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0215_6800_68HERC22D0026_6800/
- 68HERC23F0271 (delivery order): $0, Cincinnati Acquisition Div (Cad). The Purpose of This to Is to Source Track Plastics to Understand the Major Conveyances and Compositions of Plastics Entering the Watershed. These Specific Measures Will Support Fully Developed Ecological Risk Assessments and Better Target Potential M. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0271_6800_68HERC22D0026_6800/
- 68HERC23F0291 (delivery order): $0, Cincinnati Acquisition Div (Cad). The Purpose of This to Is to Develop a LAB-BASED Study Examining Biological Impacts of Microplastics on Young of Year Striped Bass Fed with Microplastic Contaminated Mysid Shrimp Coupled with Field Surveys Sampling Environmental Concentrations of Mys. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0291_6800_68HERC22D0026_6800/
- 68HERC23F0505 (delivery order): $0, Cincinnati Acquisition Div (Cad). The Purpose of This Task Order Is to Support Epa, in Coordination with the Wvdep, in Development of TMDLS for Waterbodies Within the Lower Guyandotte Watershed in West Virginia Where Ionic Toxicity Has Been Identified as a Contributing Cause of Biolo. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0505_6800_68HERC22D0026_6800/
- 68HERC23F0507 (delivery order): $0, Cincinnati Acquisition Div (Cad). AJ11: Mining-Influenced Water (Miw) Treatment Technology Performance at Superfund and Abandoned Mine Lands (Aml) Mining Sites. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0507_6800_68HERC22D0026_6800/
- 68HERC24F0059 (delivery order): $0, Cincinnati Acquisition Div (Cad). AJ11 - Technical Support for EPA Ord'S Ecological and Global Change Assessment Research: Land Application of Composting Projects. https://www.usaspending.gov/award/CONT_AWD_68HERC24F0059_6800_68HERC22D0026_6800/
- 68HERC24F0170 (delivery order): $0, Cincinnati Acquisition Div (Cad). 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. https://www.usaspending.gov/award/CONT_AWD_68HERC24F0170_6800_68HERC22D0026_6800/
- 68HERC24F0230 (delivery order): $0, Water, Tribal & Science Division. The Primary Objective of the Proposed Work Is to Begin the Process of Defining Which Alaska PWSS Are Vulnerable to Cyanobacterial Blooms.. https://www.usaspending.gov/award/CONT_AWD_68HERC24F0230_6800_68HERC22D0026_6800/
- 68HERC24F0281 (delivery order): $0, Cincinnati Acquisition Div (Cad). 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. https://www.usaspending.gov/award/CONT_AWD_68HERC24F0281_6800_68HERC22D0026_6800/
- 68HERC24F0472 (delivery order): $0, Cincinnati Acquisition Div (Cad). 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. https://www.usaspending.gov/award/CONT_AWD_68HERC24F0472_6800_68HERC22D0026_6800/
- 68HERC25F0053 (delivery order): $0, Cincinnati Acquisition Div (Cad). AJ11 - Pfas Spatial and Risk Analyses. https://www.usaspending.gov/award/CONT_AWD_68HERC25F0053_6800_68HERC22D0026_6800/
- 68HERC25F0078 (delivery order): $0, Cincinnati Acquisition Div (Cad). AJ11 - Expanding the Use and Functionality of a Causal Assessment Screening Tool (Castool). https://www.usaspending.gov/award/CONT_AWD_68HERC25F0078_6800_68HERC22D0026_6800/
- 75D30119F00002 (delivery order): $0, CDC Office of Acquisition Services. Public Health Assessment Activities - Integrated Risk Assessment. https://www.usaspending.gov/award/CONT_AWD_75D30119F00002_7523_75D30118D01408_7523/
- W9127821F0371 (delivery order): $0, W074 Endist Mobile. The Purpose of This Modification Is to Extend the Period of Performance (Pop) from 19 March 2026 to 19 September 2026.. https://www.usaspending.gov/award/CONT_AWD_W9127821F0371_9700_W9127819D0031_9700/
- 68HERC22D0026: $0, Cincinnati Acquisition Div (Cad). Technical Support for EPA Ords Ecological and Global Change Assessment Research This Amendment Updates the Key Personnel Mod P00003 Updates the Contract Manager. https://www.usaspending.gov/award/CONT_IDV_68HERC22D0026_6800/
- 68HERC24F0182 (delivery order): -$3, Construction, Finance, Administrative & Ia Division. 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.. https://www.usaspending.gov/award/CONT_AWD_68HERC24F0182_6800_68HERC22D0026_6800/
- 68HERC22F0386 (delivery order): -$5, Cincinnati Acquisition Div (Cad). B516 - Water Permits Division (Wpd) National Pollutant Discharge Elimination System (Npdes) Water Quality (Wq) Technical Support.. https://www.usaspending.gov/award/CONT_AWD_68HERC22F0386_6800_68HERC20D0016_6800/
- 68HERC24F0185 (delivery order): -$24, Cincinnati Acquisition Div (Cad). B516 - Support EPA Region 8 Watershed Section to Meet Clean Water Act Requirements and Production of Total Maximum Daily Loads.. https://www.usaspending.gov/award/CONT_AWD_68HERC24F0185_6800_68HERC20D0016_6800/
- 68HERC23F0422 (delivery order): -$36, Cincinnati Acquisition Div (Cad). B516 - Phase Iii: Assessment Methodology and Data Analysis Work for Wyoming and Montana. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0422_6800_68HERC20D0016_6800/
- 68HERC21F0042 (delivery order): -$41, Cincinnati Acquisition Div (Cad). B516 - Technical Support for Modeling Education.. https://www.usaspending.gov/award/CONT_AWD_68HERC21F0042_6800_68HERC20D0016_6800/
- 68HERC20F0242 (delivery order): -$55, Cincinnati Acquisition Div (Cad). B516 - the Purpose of This to Is to Provide Support to EPA for Activities Related to EPA Freshwater Fish Contamination Studies.. https://www.usaspending.gov/award/CONT_AWD_68HERC20F0242_6800_68HERC20D0016_6800/
- 68HERC23F0546 (delivery order): -$66, Cincinnati Acquisition Div (Cad). B516 - the Contractor Will Provide Expert Technical Support for Npdes Water Quality Whole Effluent Toxicity Program.. https://www.usaspending.gov/award/CONT_AWD_68HERC23F0546_6800_68HERC20D0016_6800/

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Source: USAspending.gov award data, keyed by UEI. Obligations in the window only. Cite https://abierto.us/vendors/tetra-tech-inc-x38laab5hb64.