| | FY26 REQ# 15838 PO-HYDROTECH-EXTERNAL | SIHALLA ZAKARIA | $18,000 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Jun 3, 2026 | Jun 3, 2026 | Jul 30, 2026 |
| | HQ - SONDE REQUIREMENTS CONTRACT - DO #1 | SIHALLA ZAKARIA | $151,874 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6685PRESSURE, TEMPERATURE, AND HUMIDITY MEASURING AND CONTROLLING INSTRUMENTS | Sep 25, 2025 | Sep 24, 2025 | Oct 23, 2026 |
| | FY25 REQ# 15631 PO-HYDROTEC-EXTERNAL | SIHALLA ZAKARIA | $100,000 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Jul 14, 2025 | Jul 14, 2025 | Jul 13, 2026 |
| | FY25 REQ # 15514 SPECIAL ORDER # S24198 | SIHALLA ZAKARIA | $81,024 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Jan 8, 2025 | Jan 8, 2025 | Feb 17, 2025 |
| | FY24 REQ# 15500 PO HYDROTEC EXTERNAL HYDROLOGIC INSTRUMENTS AND EQUIPMENT MAINTENANCE AND REPAIRS IN ACCORDANCE WITH STATEMENT OF WORK AND SALIENTS | SIHALLA ZAKARIA | $99,957 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Sep 20, 2024 | Sep 20, 2024 | Sep 19, 2025 |
| | FY24 REQ# 15319 PO HYDROTEC EXTERNAL | SIHALLA ZAKARIA | $75,000 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | May 17, 2024 | May 17, 2024 | Jul 30, 2026 |
| | HYDROTECH - MULTIPARAMETER SONDES | SIHALLA ZAKARIA | $81,141 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6685PRESSURE, TEMPERATURE, AND HUMIDITY MEASURING AND CONTROLLING INSTRUMENTS | Apr 2, 2024 | Apr 2, 2024 | Apr 22, 2024 |
| | FY23 REQ # 15093 PO HYDROTEC EXT REPAIR | SIHALLA ZAKARIA | $75,000 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Sep 14, 2023 | Sep 14, 2023 | Jul 30, 2026 |
| | REPAIR OF TDG SONDE | SIHALLA ZAKARIA | $13,558 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | J052MAINT/REPAIR/REBUILD OF EQUIPMENT- MEASURING TOOLS | Sep 8, 2023 | Sep 8, 2023 | Dec 29, 2023 |
| | FY23 REQ# 14740 SPECIAL ORDER S23104 | SIHALLA ZAKARIA | $13,343 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Jun 1, 2023 | Jun 1, 2023 | Jul 16, 2023 |
| | HYDROTECH WATER MONITORING EQUIPMENT AND REPAIRS FY23 REQ # 14882 AGAINST 140G0120D0011 | SIHALLA ZAKARIA | $44,004 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | May 5, 2023 | May 5, 2023 | Jul 3, 2023 |
| | WATER MONITORING EQUIPMENT FY23 REQ# 14740 SPECIAL ORDER S23034 | SIHALLA ZAKARIA | $14,688 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Jan 24, 2023 | Jan 24, 2023 | Feb 28, 2023 |
| | WATER MONITORING EQUIPMENT AND REPAIRS FY23 REQ# 14730 PO HYDROTECH EXT REPAIR | SIHALLA ZAKARIA | $74,996 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Jan 24, 2023 | Jan 24, 2023 | Jul 29, 2023 |
| | FY22 REQ# 14445 HYDROTECH EXT REPAIR | SIHALLA ZAKARIA | $49,980 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Jun 7, 2022 | Jun 7, 2022 | Jul 29, 2023 |
| | FY22 REQ# 14296 SPECIAL ORDER# S22029 | SIHALLA ZAKARIA | $34,834 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Jan 21, 2022 | Jul 30, 2020 | Jul 29, 2023 |
| | REPAIR & REPLACE PARTS ON THE MINI SONDE 4A; REPLACE PARTS ON THE SURVEYOR 4A; DELIVER SUPPLIES NEEDED TO OPERATE MINI SONDE 4A | SIHALLA ZAKARIA | $4,237 | FOREST SERVICE | FOREST SERVICE | — | 541990All Other Professional, Scientific, and Technical Services | J066MAINT/REPAIR/REBUILD OF EQUIPMENT- INSTRUMENTS AND LABORATORY EQUIPMENT | Aug 25, 2021 | Aug 25, 2021 | Nov 30, 2021 |
| | E-HUB INTERFACE FOR EXO SONDES & EXO HANDHELD BLUETOOTH ADAPTERS | SIHALLA ZAKARIA | $32,800 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Aug 24, 2021 | Jul 30, 2020 | Jul 29, 2023 |
| | WATER MONITORING EQUIPMENT AND REPAIRS | SIHALLA ZAKARIA | $49,919 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Jan 7, 2021 | Jan 7, 2021 | Nov 22, 2022 |
| | FY20 REQ# AGAINST 140G0120D0011 | SIHALLA ZAKARIA | $28,508 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Sep 14, 2020 | Jul 30, 2020 | Jul 29, 2023 |
| | FY20 REQ# 13132 PO HYDROTECH EXT REPAIR | SIHALLA ZAKARIA | $49,974 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Nov 14, 2019 | Nov 14, 2019 | Jul 5, 2022 |
| | CHLOROPHYLL SENSORS INSTALLATION ON HYDROLAB DATASONDE 5 SERIES INSTRUMENTS | SIHALLA ZAKARIA | $14,535 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 811219 | J066MAINT/REPAIR/REBUILD OF EQUIPMENT- INSTRUMENTS AND LABORATORY EQUIPMENT | Aug 20, 2019 | Aug 20, 2019 | Dec 31, 2019 |
| | WATER QUALITY MONITORING SYSTEM | SIHALLA ZAKARIA | $37,399 | US FISH AND WILDLIFE SERVICE | US FISH AND WILDLIFE SERVICE | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6630CHEMICAL ANALYSIS INSTRUMENTS | May 29, 2019 | May 29, 2019 | Aug 31, 2019 |
| | FY19 REQ# 12567 AGAINST IDIQ G17PC00052 | SIHALLA ZAKARIA | $15,086 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Mar 26, 2019 | Mar 26, 2019 | May 20, 2019 |
| | FY19 REQ# 12499 PO HYDROTECH EXT REPAIR | SIHALLA ZAKARIA | $49,953 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Feb 20, 2019 | Feb 20, 2019 | Jul 5, 2022 |
| | FY18 REQ# 12128 AGAINST IDIQ G17PC00052 | SIHALLA ZAKARIA | $11,600 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 6695COMBINATION AND MISCELLANEOUS INSTRUMENTS | Aug 24, 2018 | Aug 24, 2018 | Oct 16, 2018 |