| | CALL # 7 - 140G0124F0176-ISOTECH BPA 140G0120A0001 | STRATUM RESERVOIR ISOTECH, LLC | $5,377 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | May 8, 2024 | May 8, 2024 | Feb 10, 2026 |
| | GAS ISOTOPE ANALYSIS | STRATUM RESERVOIR ISOTECH, LLC | $14,121 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | Q301MEDICAL- LABORATORY TESTING | Sep 21, 2023 | Sep 21, 2023 | Jan 27, 2026 |
| | CALL # 6, 140G0123F0072-ISOTECH BPA 140G0120A0001 | STRATUM RESERVOIR ISOTECH, LLC | $10,640 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Jan 10, 2023 | Jan 9, 2023 | Nov 22, 2024 |
| | CALL UNDER 140G0120A0001 TO PERFORM SERVICES WITHIN PWS | STRATUM RESERVOIR ISOTECH, LLC | $1,050 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Aug 17, 2022 | Sep 1, 2022 | Nov 22, 2024 |
| | CALL # 4 - ISOTECH BPA 140G0120A0001 | STRATUM RESERVOIR ISOTECH, LLC | $8,250 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Jun 16, 2020 | Jun 16, 2020 | Nov 22, 2024 |
| | MOLECULAR&ISOTOPIC LABORATORY ANALYSIS OF GAS, WATER, AND ASSOCIATED SOLID SAMPLES CALL # 2 - ISOTECH BPA 140G0120A0001 | STRATUM RESERVOIR ISOTECH, LLC | $22,990 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Jan 13, 2020 | Jan 13, 2020 | Jan 12, 2022 |
| | MOLECULAR&ISOTOPIC LABORATORY ANALYSIS OF GAS, WATER, AND ASSOCIATED SOLID SAMPLES | STRATUM RESERVOIR ISOTECH, LLC | $4,741 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Jan 13, 2020 | Jan 13, 2020 | Nov 22, 2024 |
| | CALL # 1 - ISOTECH BPA 140G0120A0001 | STRATUM RESERVOIR ISOTECH, LLC | $0 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Dec 12, 2019 | Dec 12, 2019 | Nov 22, 2024 |
| | CALL # 5 - ISOTECH BPA G14PA00025 | STRATUM RESERVOIR ISOTECH, LLC | $4,300 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Jul 5, 2018 | Jul 5, 2018 | Dec 14, 2018 |
| | ANALYSIS OF STABLE CARBON ISOTOPE RATIO OF DIC AND STABLE ISOTOPE RATIOS OF METHANE IN GROUNDWATER SAMPLES | STRATUM RESERVOIR ISOTECH, LLC | $6,765 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541380Testing Laboratories and Services | B599SPECIAL STUDIES/ANALYSIS- OTHER | Feb 2, 2018 | Feb 2, 2018 | Jan 30, 2019 |
| | IGF::OT::IGF ANALYSIS OF STABLE CARBON ISOTOPE RATIO OF DIC AND STABLE ISOTOPE RATIOS OF METHANE IN GROUNDWATER SAMPLES | STRATUM RESERVOIR ISOTECH, LLC | $8,565 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541380Testing Laboratories and Services | B599SPECIAL STUDIES/ANALYSIS- OTHER | Jun 14, 2017 | Jun 14, 2017 | Dec 30, 2017 |
| | IGF::OT::IGF ANALYSIS OF THE STABLE CARBON ISOTOPE RATIO OF DISSOLVED INORGANIC CARBON AND STABLE ISOTOPE RATIOS OF SULFATE IN GROUNDWATER SAMPLES | STRATUM RESERVOIR ISOTECH, LLC | $9,170 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541380Testing Laboratories and Services | B599SPECIAL STUDIES/ANALYSIS- OTHER | Apr 11, 2017 | Apr 11, 2017 | Dec 31, 2017 |
| | IGF::OT::IGF ANALYSIS OF SAMPLES BPA CALL. | STRATUM RESERVOIR ISOTECH, LLC | $20,245 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Nov 8, 2016 | Nov 10, 2016 | Mar 2, 2018 |
| | IGF::OT::IGF ANALYSIS OF STABLE CARBON ISOTOPE RATIO OF DIC AND STABLE ISOTOPE RATIOS OF METHANE IN GROUNDWATER SAMPLES | STRATUM RESERVOIR ISOTECH, LLC | $7,945 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541380Testing Laboratories and Services | B599SPECIAL STUDIES/ANALYSIS- OTHER | May 25, 2016 | May 25, 2016 | Dec 30, 2016 |
| | "IGF::OT::IGF" CALL # 3 GAS SAMPLES - ISOTECH BPA G14PA00025 | STRATUM RESERVOIR ISOTECH, LLC | $40,000 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Jan 15, 2016 | Jan 15, 2016 | Oct 31, 2016 |
| | IGF::OT::IGF ANALYSIS OF CARBON AND SULFUR ISOTOPES IN GROUNDWATER SAMPLES | STRATUM RESERVOIR ISOTECH, LLC | $9,440 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541380Testing Laboratories and Services | B599SPECIAL STUDIES/ANALYSIS- OTHER | Sep 3, 2015 | Sep 3, 2015 | May 30, 2016 |
| | "IGF::OT::IGF" CALL #2 ISOTECH LABORATORIES BPA | STRATUM RESERVOIR ISOTECH, LLC | $35,877 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | May 29, 2015 | May 29, 2015 | Oct 30, 2015 |
| | "IGF::OT::IGF" ISOTECH LABORATORIES, INC. BPA | STRATUM RESERVOIR ISOTECH, LLC | $25,000 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Jun 10, 2014 | Jun 10, 2014 | Jul 15, 2015 |
| | "IGF::OT::IGF" ANALYSES OF GAS SAMPLES - ISOTECH | STRATUM RESERVOIR ISOTECH, LLC | $34,795 | US GEOLOGICAL SURVEY | US GEOLOGICAL SURVEY | — | 541380Testing Laboratories and Services | B517SPECIAL STUDIES/ANALYSIS- GEOLOGICAL | Jul 10, 2013 | Jul 10, 2013 | Jan 30, 2015 |
| | IGF::OT::IGF SAMPLE ANALYSIS | STRATUM RESERVOIR ISOTECH, LLC | $16,962 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541380Testing Laboratories and Services | B599SPECIAL STUDIES/ANALYSIS- OTHER | May 1, 2013 | May 1, 2013 | Dec 31, 2013 |
| | IGF::OT::IGF SAMPLE ANALYSIS, HF-SOUTHWEST PA | STRATUM RESERVOIR ISOTECH, LLC | $3,978 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541380Testing Laboratories and Services | F103ENVIRONMENTAL SYSTEMS PROTECTION- WATER QUALITY SUPPORT | Apr 26, 2013 | Apr 26, 2013 | Oct 31, 2013 |
| | IGF::OT::IGF SAMPLE ANALYSIS, HF - NORTHEAST PA | STRATUM RESERVOIR ISOTECH, LLC | $7,936 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541380Testing Laboratories and Services | F103ENVIRONMENTAL SYSTEMS PROTECTION- WATER QUALITY SUPPORT | Apr 26, 2013 | Apr 26, 2013 | Oct 31, 2013 |
| | BPA CALL - L11PA00029 ISOTECH LABS IGF::CL::IGF | STRATUM RESERVOIR ISOTECH, LLC | $5,298 | BUREAU OF LAND MANAGEMENT | BUREAU OF LAND MANAGEMENT | — | 541380Testing Laboratories and Services | B533SPECIAL STUDIES/ANALYSIS- WATER QUALITY | Feb 19, 2013 | Feb 19, 2013 | Feb 9, 2016 |
| | ISOTECH LABORATORIES - WILKIN | STRATUM RESERVOIR ISOTECH, LLC | $18,184 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541380Testing Laboratories and Services | B599SPECIAL STUDIES/ANALYSIS- OTHER | Nov 2, 2012 | Nov 2, 2012 | May 31, 2013 |
| | IGF::OT::IGF GAS CHROMATOGRAPHIC ANALYSIS GC | STRATUM RESERVOIR ISOTECH, LLC | $12,600 | CENTERS FOR DISEASE CONTROL AND PREVENTION | CENTERS FOR DISEASE CONTROL AND PREVENTION | — | 541380Testing Laboratories and Services | B504SPECIAL STUDIES/ANALYSIS- CHEMICAL/BIOLOGICAL | Aug 21, 2012 | Aug 20, 2012 | Dec 31, 2012 |