| Award | Correction: HANDLING, REMOVAL AND DISPOSAL OF HAZARDOUS WASTE AND MATERIALS | Environmental Protection | Triumvirate Environmental, Inc. | $795K | Competitive Sealed Bids | Feb 1, 2021 | 82620B0019001 |
| Award | HANDLING , REMOVAL AND DISPOSAL OF HAZARDOUS MATERIALS, CITYWIDE | Environmental Protection | Triumvirate Environmental, Inc. | $863K | Competitive Sealed Bids | Nov 16, 2016 | 82615B0082001 |
| Award | NON-HAZARDOUS/HAZARDOUS WASTE REMOVAL AND DISPOSAL FROM BUREAU OF WASTEWATER TREATMENT FACILITIES. | Environmental Protection | Triumvirate Environmental, Inc. | $236K | Competitive Sealed Bids | Aug 17, 2015 | 826141401HAZ |
| Award | EMERGENCY RESPONSE AND HANDLING, REMOVAL AND DISPOSAL OF HAZARDOUS WASTE AND MATERIAL. | Environmental Protection | Triumvirate Environmental, Inc. | $785K | Competitive Sealed Bids | Aug 17, 2015 | 826151402HAZ |