| | MONTHLY WASTEWATER SAMPLING, ANALYSIS AND REPORTING | ENVIRONMENTAL SERVICES COMPANY, INC. | $29,175 | AGRICULTURAL RESEARCH SERVICE | AGRICULTURAL RESEARCH SERVICE | — | 541380Testing Laboratories and Services | B533SPECIAL STUDIES/ANALYSIS- WATER QUALITY | May 9, 2023 | May 10, 2023 | May 9, 2028 |
| | SEWER WATER TESTING SERVICE FOR BUFFALO NATIONAL RIVER | ENVIRONMENTAL SERVICES COMPANY, INC. | $22,478 | NATIONAL PARK SERVICE | NATIONAL PARK SERVICE | — | 541990All Other Professional, Scientific, and Technical Services | Q301MEDICAL- LABORATORY TESTING | Jul 28, 2020 | Aug 1, 2020 | Jul 31, 2025 |
| | IGF::OT::IGF TESTING OF WASTE WATER FOR BUFFALO NATIONAL RIVER | ENVIRONMENTAL SERVICES COMPANY, INC. | $11,956 | NATIONAL PARK SERVICE | NATIONAL PARK SERVICE | — | 541380Testing Laboratories and Services | Q301MEDICAL- LABORATORY TESTING | Apr 25, 2017 | May 1, 2017 | Jan 12, 2022 |
| | IGF::OT::IGF FY14 HUX ENGINE&GENERATOR STACK TESTING | ENVIRONMENTAL SERVICES COMPANY, INC. | $15,900 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541620Environmental Consulting Services | F101ENVIRONMENTAL SYSTEMS PROTECTION- AIR QUALITY SUPPORT | Apr 18, 2014 | Apr 18, 2014 | Jul 31, 2014 |
| | TESTING | ENVIRONMENTAL SERVICES COMPANY, INC. | $4,800 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541380Testing Laboratories and Services | B510SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS | Sep 16, 2009 | Aug 31, 2009 | Oct 13, 2009 |
| | GAS TURBINE STACK TESTING AT POWER PLANT NO. 2, POWER PLANT NO. 3, AND STATION K-10, PEARL HARBOR, HAWAII | ENVIRONMENTAL SERVICES COMPANY, INC. | $45,000 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 541380Testing Laboratories and Services | H999OTHER QC/TEST/INSPECT- MISCELLANEOUS | Jul 27, 2009 | Jul 27, 2009 | Nov 13, 2009 |
| | HUXTABLE PUMPING STATION STACK TEST --- | ENVIRONMENTAL SERVICES COMPANY, INC. | $6,350 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541380Testing Laboratories and Services | H399INSPECTION- MISCELLANEOUS | Mar 6, 2008 | Mar 6, 2008 | Mar 29, 2008 |
| | — | ENVIRONMENTAL SERVICES COMPANY, INC. | $0 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541380Testing Laboratories and Services | R408SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT | Jul 28, 2005 | Jul 28, 2005 | Jul 31, 2010 |