West Basin Municipal Water District
104 public works projects registered with the California Department of Industrial Relations, 2015–2026 · Carson, Los Angeles County. Reported contract value: $180,547,625.
Projects by year
| Year | Projects | Reported contract value |
|---|---|---|
| 2026 | 2 | $1,921,456 |
| 2025 | 8 | $176,737,612 |
| 2024 | 7 | $1,776,497 |
| 2023 | 11 | — |
| 2022 | 5 | $112,060 |
| 2021 | 5 | — |
| 2020 | 4 | — |
| 2019 | 10 | — |
| 2018 | 16 | — |
| 2017 | 12 | — |
| 2016 | 15 | — |
| 2015 | 9 | — |
DIR has published contract amounts since July 2024; earlier years count projects only.
Types of work
- Other · 33
- Water · 17
- Buildings & facilities · 11
- HVAC & mechanical · 8
- Electrical, low voltage & AV · 8
- Sewer & wastewater · 5
- Design, inspection & consulting · 5
- Parks, landscape & fields · 5
- Concrete & masonry · 3
- Fire & life safety · 2
- Demolition & site work · 2
- Elevators & conveying · 1
Inferred by Atriam from each project's name and description, not reported by the agency.
Contractors it awards most
| Prime contractor | Projects | Reported contract value |
|---|---|---|
| THARSOS INC | 2 | $3,384,382 |
| ACCO ENGINEERED SYSTEMS | 2 | $73,750 |
| KIEWIT INFRASTRUCTURE WEST CO | 1 | $10,905,000 |
| BAKER ELECTRIC | 1 | $279,314 |
| AMTEK CONSTRUCTION | 1 | $264,715 |
| MARIPOSA LANDSCAPES, INC. | 1 | $189,887 |
| ECOTECH SERVICES INC | 1 | $150,000 |
| LIFTECH ELEVATOR SERVICES LLC | 1 | $140,500 |
| JOHNSON CONTROLS FIRE PROTECTION LP | 1 | $112,060 |
Latest projects
| Date | Project | Prime contractor | Contract amount |
|---|---|---|---|
| May 27, 2026 | Title 22 Filters 1,5,and 10 R&R ProjectConcrete & masonry | THARSOS INC | $1,642,142 |
| May 25, 2026 | TRWRP 93MCC2 ReplacementOther | BAKER ELECTRIC | $279,314 |
| Dec 30, 2025 | Remote Site Camera Replacement ProjectElectrical, low voltage & AV | — | $48,018 |
| Nov 24, 2025 | Exterior Landscape ServicesWater | MARIPOSA LANDSCAPES, INC. | $189,887 |
| Oct 27, 2025 | Parkway ConstructionOther | ECOTECH SERVICES INC | $150,000 |
| Jun 24, 2025 | Elevator Hydraulic Jacks ReplacementElevators & conveying | LIFTECH ELEVATOR SERVICES LLC | $140,500 |
| May 28, 2025 | ECL Fire Protection System ProjectFire & life safety | AMTEK CONSTRUCTION | $264,715 |
| Apr 24, 2025 | CIP Solids Handling Improvements ProjectOther | KIEWIT INFRASTRUCTURE WEST CO | $10,905,000 |
| Mar 24, 2025 | West Basin O&M ContractWater | — | $165,000,000 |
| Feb 17, 2025 | DLD-East A.C. Compressor ReplacementOther | ACCO ENGINEERED SYSTEMS | $39,493 |
| Oct 9, 2024 | ECL-Trane Chiller Condenser Coil ReplaceHVAC & mechanical | ACCO ENGINEERED SYSTEMS | $34,257 |
| Jul 1, 2024 | Solids Handling Improvements ProjectOther | — | — |
| Apr 22, 2024 | TRWRP BFP InstallationPlumbing & restrooms | — | — |
| Feb 26, 2024 | Title 22 Filters 3, 4, and 6 R&R ProjectPaving & streets | THARSOS INC | $1,742,240 |
| Jan 29, 2024 | Edward C. Little Water Recycling FacilitHVAC & mechanical | — | — |
| Jan 16, 2024 | Palos Verdes Recycled Water Pump StationWater | — | — |
| Jan 15, 2024 | ECLWRF - Anthracite Media Install ConverOther | — | — |
| Nov 17, 2023 | DLD East Trane A/C Condenser Coil ReplacOther | — | — |
| Aug 1, 2023 | On-call Pump and Motor Repair, Rebuild,Other | — | — |
| Aug 1, 2023 | On-call Pump and Motor Repair, Rebuild,Other | — | — |
| Jul 18, 2023 | AP InstallationElectrical, low voltage & AV | — | — |
| Jun 16, 2023 | ECL-Temporary Air-Conditioning Rental R.Electrical, low voltage & AV | — | — |
| May 1, 2023 | Palos Verdes Recycled Water Pipeline ProWater | — | — |
| Mar 27, 2023 | Mitel Revolution ImplementationOther | — | — |
| Mar 27, 2023 | Filter Cloth Installation for the SolidsBuildings & facilities | — | — |
Source: California Department of Industrial Relations public works project registrations (PWC-100), updated daily by Atriam.