| 68HE0526F0015 | TETRA TECH, INC. | $21,082 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541620 | R429 | Jan 8, 2026 | Jan 8, 2026 | Jun 30, 2026 |
| 68HE0525F0115 | TETRA TECH, INC. | $265,011 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541620 | R429 | Jul 31, 2025 | Jul 31, 2025 | Sep 1, 2026 |
| 68HE0524F0053 | TETRA TECH, INC. | $513,539 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 562910 | C219 | May 13, 2024 | May 13, 2024 | Mar 30, 2026 |
| 68HE0522F0076 | TETRA TECH, INC. | $1,415,614 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 562910 | F108 | Jun 15, 2022 | Jun 15, 2022 | Aug 31, 2026 |
| 68HE0320F0072 | TETRA TECH, INC. | $8,320,948 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541620 | F108 | Aug 6, 2020 | Aug 6, 2020 | Jun 30, 2026 |
| 68HE0320F0070 | TETRA TECH, INC. | $2,204,234 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541620 | F108 | Aug 5, 2020 | Aug 5, 2020 | Jun 30, 2026 |
| 68HE0320F0049 | TETRA TECH, INC. | $18,225,871 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541620 | F108 | Jul 2, 2020 | Jul 1, 2020 | Jun 30, 2026 |
| 68HE0320F0051 | TETRA TECH, INC. | $5,569,049 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541620 | F108 | Jul 2, 2020 | Jul 1, 2020 | Jun 30, 2026 |
| 68HE0320F0050 | TETRA TECH, INC. | $6,148,338 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541620 | F108 | Jul 2, 2020 | Jul 1, 2020 | Jun 30, 2026 |