EXPERT WITNESS WALKER ENVIRONMENTAL RESEARCH LLC $152,213 OFFICES, BOARDS AND DIVISIONS OFFICES, BOARDS AND DIVISIONS — 541199 All Other Legal Services R424 SUPPORT- PROFESSIONAL: EXPERT WITNESS Aug 5, 2025 Aug 5, 2025 Feb 1, 2030
ECOSHEDS CUSTOMIZATION FOR FISH-CAST MODELING AND DATA VISUALIZATION WALKER ENVIRONMENTAL RESEARCH LLC $210,000 US GEOLOGICAL SURVEY US GEOLOGICAL SURVEY — 541511 Custom Computer Programming Services DD01 IT AND TELECOM - SERVICE DELIVERY SUPPORT SERVICES: ITSM, OPERATIONS CENTER, PROJECT/PM (LABOR) Sep 6, 2024 Sep 9, 2024 Sep 8, 2029
FLORIDA BAY DASHBOARD WALKER ENVIRONMENTAL RESEARCH LLC $78,300 NATIONAL PARK SERVICE NATIONAL PARK SERVICE — 541620 Environmental Consulting Services F099 NATURAL RESOURCES/CONSERVATION- OTHER Aug 13, 2024 Aug 13, 2024 Aug 12, 2029
PROFESSIONAL SERVICES CONTRACT WITH DR. JEFF WALKER OF ENVIRONMENTAL RESEARCH LLC - STREAMFLOW MONITORING WITH MACHINE LEARNING ROAR PROJECT #2554 AND EXTENSIONS TO OTHER WATERBODY TYPES: CONTRACT TO FURTHER DEVELOP FLOW PHOTO EXPLORER, BASE WITH AN WALKER ENVIRONMENTAL RESEARCH LLC $245,000 ENVIRONMENTAL PROTECTION AGENCY ENVIRONMENTAL PROTECTION AGENCY — 541620 Environmental Consulting Services AH12 NATURAL RESOURCES AND ENVIRONMENT R&D SERVICES; WATER RESOURCES; APPLIED RESEARCH Jan 26, 2024 Jan 26, 2024 Feb 4, 2026
CUSTOMIZATION OF THE SPATIAL HYDRO-ECOLOGICAL DECISION SUPPORT (SHEDS) SYSTEM (HTTPS://ECOSHEDS.ORG/). WALKER ENVIRONMENTAL RESEARCH LLC $465,688 US GEOLOGICAL SURVEY US GEOLOGICAL SURVEY — 541511 Custom Computer Programming Services DA01 IT AND TELECOM - BUSINESS APPLICATION/APPLICATION DEVELOPMENT SUPPORT SERVICES (LABOR) Mar 31, 2022 Mar 31, 2022 Apr 3, 2027
CUSTOMIZATION OF THE RESTORE DATA VISUALIZATION TOOL TO INCORPORATE ADDITIONAL DATASETS WALKER ENVIRONMENTAL RESEARCH LLC $60,000 US GEOLOGICAL SURVEY US GEOLOGICAL SURVEY — 541511 Custom Computer Programming Services DA01 IT AND TELECOM - BUSINESS APPLICATION/APPLICATION DEVELOPMENT SUPPORT SERVICES (LABOR) Dec 21, 2021 Dec 21, 2021 Dec 20, 2026
WEB DEVELOPMENT SERVICES FOCUSING ON DATA PORTAL MANAGEMENT VISUALIZATION AND INTEGRATION OF THE SHEDS BROOK TROUT OCCUPANCY MODEL AND THE EASTERN BROOK TROUT JOINT VENTURE SPATIAL DATA AND TOOLS MODEL WALKER ENVIRONMENTAL RESEARCH LLC $10,000 FOREST SERVICE FOREST SERVICE — 541620 Environmental Consulting Services AJ22 Sep 9, 2020 Sep 9, 2020 Dec 30, 2020
EXPERT WITNESS WALKER ENVIRONMENTAL RESEARCH LLC $33,900 OFFICES, BOARDS AND DIVISIONS OFFICES, BOARDS AND DIVISIONS — 541199 All Other Legal Services R424 SUPPORT- PROFESSIONAL: EXPERT WITNESS Sep 4, 2020 Sep 8, 2020 Sep 7, 2023
SHEDS DATABASE EXTENSION TO THE MIDWEST U.S. WALKER ENVIRONMENTAL RESEARCH LLC $25,000 US GEOLOGICAL SURVEY US GEOLOGICAL SURVEY — 541620 Environmental Consulting Services R425 SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL Jul 28, 2020 Aug 1, 2020 Jul 31, 2021
WEB DEVELOPMENT SERVICES FOR THE MASSACHUSETTS COLDWATER REFUGIA TOOL FOCUSING ON DATA VISUALIZATION AND INTEGRATION OF THE SHEDS BROOK TROUT OCCUPANCY MODEL WALKER ENVIRONMENTAL RESEARCH LLC $10,000 FOREST SERVICE FOREST SERVICE — 541620 Environmental Consulting Services D308 Feb 20, 2020 Feb 20, 2020 Sep 30, 2020
WEB-BASED INTERACTIVE DATA VISUALIZATIONS AND OCCUPANCY MODELING INTEGRATION OF THE NORTHEAST FISHERIES SCIENCE CENTER'S LONG TERM PASSIVE ACOUSTIC MONITORING DATASETS WALKER ENVIRONMENTAL RESEARCH LLC $50,000 NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION — 541620 Environmental Consulting Services AJ22 Sep 4, 2019 Sep 4, 2019 Mar 3, 2021
WALKER ENVIRONMENTAL RESEARCH WALKER ENVIRONMENTAL RESEARCH LLC $117,000 US GEOLOGICAL SURVEY US GEOLOGICAL SURVEY — 541620 Environmental Consulting Services D308 Jul 29, 2019 Jul 29, 2019 Dec 8, 2020
DEVELOPMENT OF A WEB-BASED INTERACTIVE DATA VISUALIZATION TOOL AND GEOSPATIAL DATABASE FOR SUPPORTING THE STREAMFLOW ALTERATION ASSESSMENT OF THE GULF STATES WALKER ENVIRONMENTAL RESEARCH LLC $24,990 US GEOLOGICAL SURVEY US GEOLOGICAL SURVEY — 541620 Environmental Consulting Services R425 SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL Jul 27, 2018 Jul 27, 2018 Jul 31, 2019