{"canonical":"https://abierto.us/vendors/tetra-tech-inc-j8cnbanbz6u8","key":"J8CNBANBZ6U8","name":"TETRA TECH, INC.","uei":"J8CNBANBZ6U8","city":"OAKLAND","state":"CA","awards":51,"obligated":"51714488.04","notices_won":0,"top_agency_name":"Environmental Protection Agency","top_naics":"541620","cage":"1HWF1","parent_name":"TETRA TECH, INC.","also_known_as":[],"country":"USA","actions":161,"first_action":"2024-01-12","last_action":"2026-09-09","breakdowns":{"naics":[{"key":"541620","name":null,"awards":47,"obligated":"51274162.76"},{"key":"541715","name":null,"awards":1,"obligated":"277365.00"},{"key":"562910","name":null,"awards":3,"obligated":"162960.28"}],"places":[{"key":"AZ","name":null,"awards":18,"obligated":"17361631.41"},{"key":"CA","name":null,"awards":18,"obligated":"-2093637.46"},{"key":"NM","name":null,"awards":11,"obligated":"33141606.92"},{"key":"UT","name":null,"awards":1,"obligated":"3027522.17"},{"key":"HI","name":null,"awards":1,"obligated":"277365.00"}],"agencies":[{"key":"6800","name":"Environmental Protection Agency","awards":47,"obligated":"51274162.76"},{"key":"6920","name":"Federal Aviation Administration","awards":1,"obligated":"277365.00"},{"key":"2100","name":"Department of the Army","awards":3,"obligated":"162960.28"}],"set_asides":[{"key":"SMALL BUSINESS SET ASIDE - TOTAL","name":null,"awards":1,"obligated":"277365.00"}],"award_types":[{"key":"DELIVERY ORDER","name":null,"awards":48,"obligated":"51437123.04"},{"key":"DEFINITIVE CONTRACT","name":null,"awards":1,"obligated":"277365.00"}],"competition":[{"key":"FULL AND OPEN COMPETITION","name":null,"awards":50,"obligated":"51437123.04"},{"key":"COMPETED UNDER SAP","name":null,"awards":1,"obligated":"277365.00"}],"product_service_codes":[{"key":"B510","name":null,"awards":47,"obligated":"51274162.76"},{"key":"F110","name":null,"awards":1,"obligated":"277365.00"},{"key":"F999","name":null,"awards":3,"obligated":"162960.28"}]},"awards_list":[{"award_key":"CONT_AWD_68HE0923F0051_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0051_6800_68HE0923D0002_6800/","piid":"68HE0923F0051","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-20","last_action_date":"2026-08-21","actions":7,"obligated":"15397369.81","current_total_value":"20268423.41","potential_total_value":"20268423.41","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE CONTRACTOR SHALL PERFORM REQUIRED TO CONDUCT EE/CAS IN NAVAJO NATION'S NORTHERN AGENCY. THIS IS A MOD P00001 FOR TO 07 UNDER RAES 2 CONTRACT #68HE0923D0002.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0071_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0071_6800_68HE0923D0002_6800/","piid":"68HE0923F0071","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-08-19","last_action_date":"2026-09-09","actions":5,"obligated":"12056963.19","current_total_value":"13504855.74","potential_total_value":"13504855.74","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNLITERAL MOD IS TO INCORPORATE A REVISED SOW AND KTR WORK PLAN. THIS IS MOD P00004 FOR TO 15 THAT PROVIDES SPT FOR NAUM PROGRAM TO DEVELOP PROGRAM STANDARDS UNDER THE RAES 2 CONTRACT #68HE0923D0002.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0074_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0074_6800_68HE0923D0002_6800/","piid":"68HE0923F0074","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-05-29","last_action_date":"2026-08-21","actions":8,"obligated":"6200600.74","current_total_value":"10655360.71","potential_total_value":"10655360.71","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS MODIFICATION IS TO INCORPORATE CHANGES PER THE REVISED SOW AND TETRA TECH WP/CE. THE CONTRACTOR SHALL PROVIDE THE SUPPORT NEEDED FOR INTERIM ACTIONS AT TRONOX AUMS UNDER THE RAES II CONTRACT #68HE0923D0002 FOR EPA FOR REGIONS 6 AN","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0072_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0072_6800_68HE0923D0002_6800/","piid":"68HE0923F0072","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-05-06","last_action_date":"2026-07-10","actions":7,"obligated":"5149848.95","current_total_value":"6546625.04","potential_total_value":"6546625.04","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS MODIFICATION IS TO EXTEND THE POP AND ADD TASKS AND FUNDING TO SUPPORT FOR PHASE 2 OF THE LUKACHUKAI MOUNTAINS MINING DISTRICT (LLMD) PROJECT INCLUDING CSM,RI/FS UNDER RAES 2 CONTRACT #68HE0923D0002.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0924F0004_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0924F0004_6800_68HE0923D0002_6800/","piid":"68HE0924F0004","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-04-09","last_action_date":"2025-12-29","actions":6,"obligated":"3027522.17","current_total_value":"3386462.45","potential_total_value":"3386462.45","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS MODIFICATION IS TO ADD SCOPE AND FUNDING FOR THE RSE AT THE SKYLINE AUM UNDER THE RAES II CONTRACT FOR EPA FOR REGIONS 6 & 9.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0073_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0073_6800_68HE0923D0002_6800/","piid":"68HE0923F0073","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-02-16","last_action_date":"2026-07-23","actions":9,"obligated":"2304568.17","current_total_value":"3692684.36","potential_total_value":"3692684.36","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO ADD AN ALTERNATE TOCOR. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0924F0017_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0924F0017_6800_68HE0923D0002_6800/","piid":"68HE0924F0017","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-05-13","last_action_date":"2026-07-08","actions":3,"obligated":"1594579.98","current_total_value":"1594579.98","potential_total_value":"1594579.98","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE CONTRACTOR SHALL PROVIDE TECHNICAL SUPPORT TO USEPA, REGION 6, IN FULFILLMENT OF ITS RESPONSIBILITIES FOR OVERSIGHT & ENFORCEMENT OF A GROUNDWATER RI/FS BEING PERFORMED BY PRPS AT THE SAN MATEO CREEK BASIN LEGACY URANIUM SITES UNDER THE RAES","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0045_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0045_6800_68HE0923D0002_6800/","piid":"68HE0923F0045","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-03-27","last_action_date":"2026-09-09","actions":5,"obligated":"1446627.83","current_total_value":"1794749.24","potential_total_value":"1794749.24","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS BILATERAL MODIFICATION IS TO EXTEND THE POP. TO IS FOR TIME-CRITICAL REMOVAL ACTION (TCRA) PLANNING AND OVERSIGHT SUPPORT ASSOCIATED WITH THE OLD CHURCH ROCK MINE SITE, AS WELL AS PLANNING AND SCOPING FOR A NON-TIME CRITICAL REMOV","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0925F0048_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0925F0048_6800_68HE0923D0002_6800/","piid":"68HE0925F0048","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2025-06-02","last_action_date":"2026-07-08","actions":3,"obligated":"1326779.14","current_total_value":"1326779.14","potential_total_value":"1326779.14","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"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.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0041_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0041_6800_68HE0923D0002_6800/","piid":"68HE0923F0041","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-01-31","last_action_date":"2026-05-22","actions":3,"obligated":"1269860.79","current_total_value":"4671622.98","potential_total_value":"4671622.98","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS BILATERAL MOD IS TO ADD SCOPE AND FUNDING. CONTRACTOR WILL PERFORM ENGINEERING EVALUATION/COST ANALYSIS (EE/CA) AND RELATED TASKS AT THE QUIVIRA MINE FOR THE RESPONSE ASSESSMENT AND EVALUATION SERVICES CONTRACT.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0049_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0049_6800_68HE0923D0002_6800/","piid":"68HE0923F0049","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-07-26","last_action_date":"2026-07-10","actions":3,"obligated":"1149810.68","current_total_value":"1604799.21","potential_total_value":"1604799.21","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS BILATERAL MOD IS TO EXTEND THE POP, CHANGE TOCORS, AND ADD FUNDS, AND SCOPE. THE CONTRACTOR PROVIDES TA FOR DATA AND RECORDS MANAGEMENT RELATED TO THE NAVAJO AUM PROGRAM. THIS IS MOD P00001, TASK ORDER 6 FOR THE RAES 2 CONTRACT, #","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0925F0051_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0925F0051_6800_68HE0923D0002_6800/","piid":"68HE0925F0051","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2025-08-06","last_action_date":"2026-08-21","actions":3,"obligated":"1062866.82","current_total_value":"1062866.82","potential_total_value":"1062866.82","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SUPPORT TO EPA REGION 6 IN FULFILLMENT OF ITS RESPONSIBILITIES FOR OVERSIGHT AND ENFORCEMENT OF ARCO'S ONGOING RI/FS UNDER THE ASAOC AND TO ASSIST EPA IN COORDINATION AND COMMUNICATION WITH","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0924F0055_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0924F0055_6800_68HE0923D0002_6800/","piid":"68HE0924F0055","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-26","last_action_date":"2025-06-05","actions":2,"obligated":"764180.80","current_total_value":"764180.80","potential_total_value":"764180.80","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE TO USEPA FOR TECHNICAL ASSISTANCE TO THE CONTAMINATED STRUCTURES PROGRAM UNDER THE RAES 2 CONTRACT.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0070_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0070_6800_68HE0923D0002_6800/","piid":"68HE0923F0070","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-07-09","last_action_date":"2026-08-19","actions":5,"obligated":"745524.12","current_total_value":"1101146.14","potential_total_value":"1101146.14","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO CHANGE PRIMARY TOCOR. THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR KNOWN 278 UNFUNDED AUMS ON THE NAVAJO NATION UNDER RAES II FOR EPA FOR REGIONS 6 & 9.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0924F0051_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0924F0051_6800_68HE0923D0002_6800/","piid":"68HE0924F0051","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-07-23","last_action_date":"2026-06-11","actions":4,"obligated":"385687.19","current_total_value":"385687.19","potential_total_value":"385687.19","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE CONTRACTOR SHALL PROVIDE SUPPORT REQUIRED FOR AGENCY OVERSIGHT OF THE UNITED NUCLEAR CORPORATION/GENERAL ELECTRIC (UNC/GE) WORK AT THE NORTHEAST CHURCH ROCK (NECR) MINE SITE UNDER RAES 2 CONTRACT.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0048_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0048_6800_68HE0923D0002_6800/","piid":"68HE0923F0048","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-18","last_action_date":"2026-06-29","actions":6,"obligated":"356412.33","current_total_value":"439774.54","potential_total_value":"439774.54","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS BILATERAL MOD IS TO EXTEND THE POP. THE CONTRACTOR SHALL SUPPORT AGENCY OVERSITE OF RSES,, INTERIM RAS, WATER STUDIES, EE/CAS, AND RAS AT THE ABANDONED URANIUM MINES (AUMS) AND MINE AREAS NAMED IN THE PHASE 2 EXPANDED TRUST AGREEM","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_697DCK25C00133_6920_-NONE-_-NONE-","permalink":"https://www.usaspending.gov/award/CONT_AWD_697DCK25C00133_6920_-NONE-_-NONE-/","piid":"697DCK25C00133","parent_piid":null,"award_type":"DEFINITIVE CONTRACT","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Federal Aviation Administration","office_name":"697DCK REGIONAL ACQUISITIONS SVCS","office_key":"o-697DCK","first_action_date":"2025-04-28","last_action_date":"2026-08-24","actions":4,"obligated":"277365.00","current_total_value":"277365.00","potential_total_value":"277365.00","naics":"541715","psc":"F110","extent_competed":"COMPETED UNDER SAP","set_aside":"SMALL BUSINESS SET ASIDE - TOTAL","offers_received":2,"description":"ENVIRONMENTAL ASSESSMENT REPLACEMENT OF THE AIR ROUTE SURVEILLANCE RADAR (ARSR) ON MT. KA`ALA, OAHU, HAWAII","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0077_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0077_6800_68HE0923D0002_6800/","piid":"68HE0923F0077","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-08-21","last_action_date":"2026-02-18","actions":3,"obligated":"267534.74","current_total_value":"428850.42","potential_total_value":"428850.42","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF UNILATERAL MOD P00002 IS TO EXTEND THE POP. CONTRACTOR SHALL PROVIDE SUPPORT FOR NTCRA PLANNING & OVERSIGHT SUPT ASSOCIATED W/ENPRO HOLDINGS ON NAVAJO NATION UNDER THE RAES2 CONTRACT #68HE0923D0002.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0042_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0042_6800_68HE0923D0002_6800/","piid":"68HE0923F0042","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-10","last_action_date":"2026-05-18","actions":5,"obligated":"237545.63","current_total_value":"457618.43","potential_total_value":"457618.43","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS BILATERAL MOD CHANGES THE PRIMARY TOCOR AND ADDS A NEW ALTERNATE TOCOR. IT ALSO ADDS FUNDS. THE CONTRACTOR WILL ASSIST EPA IN COMMUNITY INVOLVEMENT OUTREACH SUPPORT INCLUDING CALLS, REMOTE MEETINGS AND FACE TO FACE ASSEMBLIES UNDE","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_W9123823F0036_9700_W912PP22D0018_9700","permalink":"https://www.usaspending.gov/award/CONT_AWD_W9123823F0036_9700_W912PP22D0018_9700/","piid":"W9123823F0036","parent_piid":"W912PP22D0018","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Department of the Army","office_name":"W075 ENDIST SACRAMENTO","office_key":"o-W91238","first_action_date":"2025-01-16","last_action_date":"2025-06-05","actions":3,"obligated":"165460.28","current_total_value":"1768525.28","potential_total_value":"2213706.28","naics":"562910","psc":"F999","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":1,"description":"REA MODIFICATION","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0078_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0078_6800_68HE0923D0002_6800/","piid":"68HE0923F0078","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-01-30","last_action_date":"2026-06-26","actions":6,"obligated":"122828.95","current_total_value":"287658.34","potential_total_value":"287658.34","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS BILATERAL MOD IS TO INCORPORATE CHANGES INTO THE SOW. THE CONTRACTOR SHALL PROVIDE SUPPORT NEEDED FOR NTCRA PLANNING AND OVERSIGHT ON BABBITT RANCHES UNDER RAES 2 CONTRACT #68HE0923D0002.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0925F0054_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0925F0054_6800_68HE0923D0002_6800/","piid":"68HE0925F0054","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2025-07-01","last_action_date":"2026-08-21","actions":3,"obligated":"100000.00","current_total_value":"359073.15","potential_total_value":"359073.15","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"TO 29 IS TO TO PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) BNSF RAILWAY COMPANY (BNSF) AS THEY PERFORM A BACKGROUND STUDY, DATA GAPS ANALYSIS AND ENGINEERING EVALUATIONS/COST ANALYSES (EE/CA).","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0061_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0061_6800_68HE0923D0002_6800/","piid":"68HE0923F0061","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2025-04-01","last_action_date":"2026-07-22","actions":6,"obligated":"97371.71","current_total_value":"205629.52","potential_total_value":"205629.52","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS BILATERAL MODIFICATION EXTEND THE POP AND ADD UPDATED UAV MEMO. TO FOR UAV SUPPORT ON NAVAJO NATION IN ACCORDANCE UNDER THE RAES2 CONTRACT #68HE0923D0002 FOR EPA FOR REGIONS 6 & 9.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0925F0047_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0925F0047_6800_68HE0923D0002_6800/","piid":"68HE0925F0047","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2025-04-23","last_action_date":"2026-04-17","actions":2,"obligated":"96818.19","current_total_value":"96818.19","potential_total_value":"96818.19","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE CONTRACTOR SHALL PERFORM OVERSITE AND TECHNICAL REVIEW FOR REMOVAL SITE EVALUATIONS (RSE) AND RISK ASSESSMENT DOCUMENTS FOR WELLS CARGO ABANDONED URANIUM MINES (AUMS) UNDER THE RAES 2 CONTRACT 68HE0923D0002.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0067_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0067_6800_68HE0923D0002_6800/","piid":"68HE0923F0067","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2025-01-27","last_action_date":"2025-12-08","actions":3,"obligated":"50000.00","current_total_value":"265624.27","potential_total_value":"265624.27","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO ADD INCREMENTAL FUNDING. THE CONTRACTOR SHALL PROVIDE TECH ASSIST, FOR OVERSIGHT OF PRP AS THEY PERFORM AN EE/CA FOR THE MAC & BLACKJACK MINES FOR CONTRACT 68HE0923D0002, THE (RAES)II FOR EPA FOR RGNS 6 AN","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0044_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0044_6800_68HE0923D0002_6800/","piid":"68HE0923F0044","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-11-19","last_action_date":"2026-06-03","actions":2,"obligated":"0","current_total_value":"787071.21","potential_total_value":"787071.21","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF UNILATERAL MODIFICATION IS TO EXTEND THE POP. CONTRACTOR WILL PERFORM EE/CAS AT THE SECTION 32/33 MINES FOR THE RAES II CONTRACT.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0062_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0062_6800_68HE0923D0002_6800/","piid":"68HE0923F0062","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2025-08-05","last_action_date":"2025-12-08","actions":2,"obligated":"0","current_total_value":"261883.05","potential_total_value":"261883.05","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS NO-COST BILATERAL MODIFICATION P00001 IS TO EXTEND THE PERIOD OF PERFORMANCE (POP).","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0066_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0066_6800_68HE0923D0002_6800/","piid":"68HE0923F0066","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2025-08-06","last_action_date":"2025-10-23","actions":2,"obligated":"0","current_total_value":"789473.86","potential_total_value":"789473.86","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS NO-COST BILATERAL MODIFICATION P00001 IS TO EXTEND THE PERIOD OF PERFORMANCE","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0068_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0068_6800_68HE0923D0002_6800/","piid":"68HE0923F0068","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-10-17","last_action_date":"2026-07-31","actions":6,"obligated":"0","current_total_value":"266078.09","potential_total_value":"266078.09","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO CHANGE THE PRIMARY TOCOR. CONTRACTOR PROVIDES ASSISTANCE FOR OVERSIGHT OF THE PRP - WESTERN NUCLEAR AS THEY PERFORM EE/CAS AND RAS IN THE MARIANO LAKE AREA OF THE EASTERN AGENCY NAVAJO NATION.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0923F0069_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0923F0069_6800_68HE0923D0002_6800/","piid":"68HE0923F0069","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-05-31","last_action_date":"2026-08-07","actions":5,"obligated":"0","current_total_value":"582364.38","potential_total_value":"582364.38","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO ADD A PTOCOR AND ATOCOR FOR THIS TO FOR THE REMOVAL SITE EVALUATIONS (RSES) AT THE ABANDONED URANIUM MINES (AUMS) AND MINE AREAS NAMED IN THE CYPRUS AMAX MINERALS COMPANY UNDER THE RAES 2 CONTRACT # 6","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0924F0001_6800_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0924F0001_6800_68HE0923D0002_6800/","piid":"68HE0924F0001","parent_piid":"68HE0923D0002","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-14","last_action_date":"2025-09-03","actions":4,"obligated":"0","current_total_value":"74832.81","potential_total_value":"74832.81","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS MOD IS TO EXTEND THE POP AND REMOVE THE ALT TOCOR. THE CONTRACTOR SHALL SUPPORT DEVELOPMENT OF THE FEDERAL ACTIONS TO ADDRESS IMPACTS OF URANIUM CONTAMINATION IN THE NAVAJO NATION 2020-2029 (TEN-YEAR PLAN) UNDER THE RAES 2 CONTRAC","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_IDV_68HE0923D0002_6800","permalink":"https://www.usaspending.gov/award/CONT_IDV_68HE0923D0002_6800/","piid":"68HE0923D0002","parent_piid":null,"award_type":null,"vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-02-29","last_action_date":"2026-05-14","actions":4,"obligated":"0","current_total_value":null,"potential_total_value":"98000000.00","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":"NO SET ASIDE USED.","offers_received":2,"description":"THIS UNILATERAL MODIFICATION REVISES THE MOBILIZATION POINTS FOR TASK ORDERS. THIS IS MOD P00005 FOR THE RAES 2 CONTRACT.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_IDV_W912PP22D0018_9700","permalink":"https://www.usaspending.gov/award/CONT_IDV_W912PP22D0018_9700/","piid":"W912PP22D0018","parent_piid":null,"award_type":null,"vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Department of the Army","office_name":"W075 ENDIST ALBUQUERQUE","office_key":"o-W912PP","first_action_date":"2024-05-01","last_action_date":"2025-05-15","actions":2,"obligated":"0","current_total_value":null,"potential_total_value":"50000000.00","naics":"562910","psc":"F999","extent_competed":"FULL AND OPEN COMPETITION","set_aside":"NO SET ASIDE USED.","offers_received":12,"description":"MEGA ENVIRONMENTAL REMEDIATION SERVICES. MOD ADDS FAR CLAUSE 52.204-27 AND 52.204-30","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_0003_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_0003_6800_EPS91703_6800/","piid":"0003","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-07","last_action_date":"2024-06-07","actions":1,"obligated":"-42.19","current_total_value":"1478797.75","potential_total_value":"1478797.75","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNLITERAL MODIFICATION IS TO CHANGE THE COR. THIS WILL BE MODIFICATION P00009 FOR TASK ORDER 0003 UNDER CONTRACT #EP-S9-17-03 (RAES).","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0919F0040_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0919F0040_6800_EPS91703_6800/","piid":"68HE0919F0040","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-05","last_action_date":"2024-06-05","actions":1,"obligated":"-1490.24","current_total_value":"231334.93","potential_total_value":"231334.93","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNUSED FUNDS IN PREPARATION FOR CLOSE-OUT.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0922F0051_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0922F0051_6800_EPS91703_6800/","piid":"68HE0922F0051","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-12","last_action_date":"2024-06-12","actions":1,"obligated":"-1599.27","current_total_value":"421849.09","potential_total_value":"421849.09","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OBLIGATE UNLIQUIDATED FUNDS. THIS IS MOD P00003 FOR TASK ORDER 68HE0922F0051 (TO 35). TO IS FOR RA AT THE OLD CHURCH ROCK MINE SITE IN THE NAVAJO NATION, NEW MEXICO.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_W912PP22F0036_9700_W912PP22D0018_9700","permalink":"https://www.usaspending.gov/award/CONT_AWD_W912PP22F0036_9700_W912PP22D0018_9700/","piid":"W912PP22F0036","parent_piid":"W912PP22D0018","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Department of the Army","office_name":"W075 ENDIST ALBUQUERQUE","office_key":"o-W912PP","first_action_date":"2024-02-15","last_action_date":"2024-02-15","actions":1,"obligated":"-2500.00","current_total_value":"0","potential_total_value":"0","naics":"562910","psc":"F999","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":12,"description":"MEGA ENVIRONMENTAL REMEDIATION SERVICES. MOD DE-OBLIGATES MINIMUM GUARANTEE.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0920F0006_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0920F0006_6800_EPS91703_6800/","piid":"68HE0920F0006","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-05","last_action_date":"2024-06-05","actions":1,"obligated":"-21898.61","current_total_value":"351883.02","potential_total_value":"351883.02","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OB UNUSED FUNDS IN PREPARATION FOR CLOSEOUT. THIS WILL BE MODIFICATION P00008 OF TO #00025(68HE0920F0006) UNDER CONTRACT #EPS91703 (RAES).","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_0006_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_0006_6800_EPS91703_6800/","piid":"0006","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-01-12","last_action_date":"2024-01-12","actions":1,"obligated":"-29842.96","current_total_value":"84326.98","potential_total_value":"84326.98","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OB UNUSED FUNDS IN PREPARATION FOR TO CLOSEOUT. THIS WILL BE MODIFICATION P00012 FOR TASK ORDER 0006, UNDER CONTRACT # EPS91703. THIS TO SUPPORTS DEVELOPMENT OF THE FEDERAL ACTIONS TO ADDRESS IMPACTS OF URA","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0919F0073_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0919F0073_6800_EPS91703_6800/","piid":"68HE0919F0073","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-05","last_action_date":"2024-06-05","actions":1,"obligated":"-38337.85","current_total_value":"189289.03","potential_total_value":"189289.03","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNUSED FUNDS IN PREPARATION FOR CLOSE-OUT. THIS WILL BE MODIFICATION P00007 FOR TASK ORDER 00022 (68HE0919F0073)UNDER CONTRACT #EPS91703 (RAES).","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0920F0071_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0920F0071_6800_EPS91703_6800/","piid":"68HE0920F0071","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-06","last_action_date":"2024-06-12","actions":3,"obligated":"-39262.21","current_total_value":"1282.60","potential_total_value":"1282.60","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO DEOBLIGATE UNLIQUIDATED FUNDS. THIS WILL BE MOD P00005 FOR TO #00027(68HE0920F0071) UNDER CONTRACT #EPS91703-RAES.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_0005_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_0005_6800_EPS91703_6800/","piid":"0005","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-01-18","last_action_date":"2024-01-18","actions":1,"obligated":"-50166.49","current_total_value":"267874.90","potential_total_value":"267874.90","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNUSED FUNDS IN PREPARATION FOR CLOSEOUT. THIS WILL BE MODIFICATION P00011 TO TASK ORDER 0005, UNDER RAES 1 CONTRACT #EPS91703.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0918F0368_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0918F0368_6800_EPS91703_6800/","piid":"68HE0918F0368","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-11","last_action_date":"2024-06-11","actions":1,"obligated":"-76037.61","current_total_value":"737305.60","potential_total_value":"737305.60","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OBLIGATE UNLIQUIDATED FUNDS. THIS TO IS FOR THE REMOVAL SITE EVALUATIONS (RSE) AT THE SKYLINE MINE, UT.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_0002_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_0002_6800_EPS91703_6800/","piid":"0002","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-01-17","last_action_date":"2024-01-17","actions":1,"obligated":"-99487.92","current_total_value":"225560.18","potential_total_value":"225560.18","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OBLIGATE UNUSED FUNDS IN PREP FOR CLOSEOUT. THIS IS MODIFICATION P00013 FOR TO 0002 OF RAES 1 CONTRACT EPS91703.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0919F0122_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0919F0122_6800_EPS91703_6800/","piid":"68HE0919F0122","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-07","last_action_date":"2024-06-07","actions":1,"obligated":"-145725.99","current_total_value":"700036.19","potential_total_value":"700036.19","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNLIQUIDATED FUNDS.CONTRACTOR SHALL PROVIDE TECHNICAL SUPPORT FOR THE NAVAJO CONTAMINATED STRUCTURES PROGRAM (CSP). THIS IS MOD P00010 OF THIS TASK ORDER UNDER CONTRACT EP-S9-17-03.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0920F0027_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0920F0027_6800_EPS91703_6800/","piid":"68HE0920F0027","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-06","last_action_date":"2024-06-06","actions":1,"obligated":"-155308.52","current_total_value":"893240.05","potential_total_value":"893240.05","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO DEOBLIGATE UNLIQUIDATED FUNDS. TO PROVIDED TECHNICAL SERVICES FOR NAUM DATA SUPPORT. RAES TO #26 (DO #68HE0920F0027) - MOD P00011.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0918F0380_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0918F0380_6800_EPS91703_6800/","piid":"68HE0918F0380","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-04-12","last_action_date":"2024-04-12","actions":1,"obligated":"-188525.97","current_total_value":"437049.62","potential_total_value":"437049.62","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS TASK ORDER IS TO EXTEND THE PERIOD OF PERFORMANCE TO OCTOBER 7, 2023. THIS WILL BE MODIFICATION P00005 FOR TASK ORDER #0009 (68HE0918F0380), UNDER CONTRACT # EP-S9-17-03 (RAES)","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0920F0106_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0920F0106_6800_EPS91703_6800/","piid":"68HE0920F0106","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-06","last_action_date":"2024-06-06","actions":1,"obligated":"-338338.03","current_total_value":"110376.78","potential_total_value":"110376.78","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OBLIGATE UNLIQUIDATED FUNDS. THIS WILL BE MOD P00004 FOR TASK ORDER 00029(68HE0920F0106) UNDER CONTRACT #EPS91703 (RAES).","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0922F0024_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0922F0024_6800_EPS91703_6800/","piid":"68HE0922F0024","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-12","last_action_date":"2024-06-12","actions":1,"obligated":"-426631.48","current_total_value":"3061432.79","potential_total_value":"3061432.79","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNLIQUIDATED FUNDS. THIS IS MOD P00007 FOR RAES CONTRACT EPS91703, TASK ORDER 34.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0919F0017_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0919F0017_6800_EPS91703_6800/","piid":"68HE0919F0017","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-06","last_action_date":"2024-06-06","actions":1,"obligated":"-993456.63","current_total_value":"14550933.79","potential_total_value":"14550933.79","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OBLIGATE UNLIQUIDATED FUNDS. THIS IS MODIFICATION #P00022 TO TASK ORDER #16(68HE0919F0017) UNDER THE RAES CONTRACT #EPS91703.","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null},{"award_key":"CONT_AWD_68HE0920F0105_6800_EPS91703_6800","permalink":"https://www.usaspending.gov/award/CONT_AWD_68HE0920F0105_6800_EPS91703_6800/","piid":"68HE0920F0105","parent_piid":"EPS91703","award_type":"DELIVERY ORDER","vendor_key":"J8CNBANBZ6U8","recipient_name":"TETRA TECH, INC.","recipient_uei":"J8CNBANBZ6U8","recipient_cage":"1HWF1","recipient_city":"OAKLAND","recipient_state":"CA","sub_name":"Environmental Protection Agency","office_name":"REGION 9 CONTRACTING OFFICE","office_key":"o-68HE09","first_action_date":"2024-06-12","last_action_date":"2024-06-12","actions":1,"obligated":"-1330987.20","current_total_value":"2461251.61","potential_total_value":"2461251.61","naics":"541620","psc":"B510","extent_competed":"FULL AND OPEN COMPETITION","set_aside":null,"offers_received":null,"description":"THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNLIQUIDATED FUNDS. THIS WILL BE MODIFICATION P00006 FOR TO# 28 (68HE0920F105) UNDER CONTRACT #EPS91703 (RAES).","method":null,"confidence":null,"evidence":null,"opportunity_key":null,"opportunity_title":null}],"awards_total":51,"awards_page":1,"won":[],"won_total":0,"solicitations_won":[]}